United States Office of Water Environmental Protection Washington, DC 20460 September 2015 Agency



# Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

Part 10 of 10Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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## Appendix A. Issues Related to Statistical Analyses for Calculating Effluent LimitationsEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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# ESSAY : Issues Related to Statistical Analyses for Calculating Effluent Limitations

1. Introduction

................................ ................................ ................................ ............................. 3 2. Definitions of Limitations

................................ ................................ ................................ ....... 3 2.1 Limitations Based Upon Percentiles of Distributions

................................ ...................... 4 2.2 Statistical Methodology is a Framework for Limitations Development

.......................... 5 2.3 Selection of Percentiles

................................ ................................ ................................ .... 5 2.4 Use of Median for Long

- Term Average Basis of Limitation

................................ ........... 8 2.5 Daily Maximum Limitation is Consistent with Statistical Framework

............................ 8 3. Data Review and Assumptio ns

................................ ................................ ............................... 9 3.1 Data Include All Sources of Variability

................................ ................................ ........... 9 3.2 Evaluation of Data

................................ ................................ ................................ .......... 11 3.2.1. Available Data

................................ ................................ ................................ ........ 11 3.2.2. Representativeness of the Data

................................ ................................ ............... 12 3.3 Use of Averaged Data

................................ ................................ ................................ .... 12 3.4 Data Exclusions

................................ ................................ ................................ .............. 13 3.5 Baseline Value Substitutions

................................ ................................ .......................... 14 4. Modified Delta

- Lognormal Distribution

................................ ................................ ............... 16 4.1 Selection for Effluent Data

................................ ................................ ............................. 16 4.1.1. Autocorrelation Correction

................................ ................................ ..................... 17 4.1.2. Precision and Bias

................................ ................................ ................................ ... 18 4. 1.3. Engineering Analyses Used to Evaluate the Model

................................ ................ 19 4.1.4. Cross

- Validation (e.g., Jackknife)

................................ ................................ .......... 2 1 4.2 Alternative Statistical Approaches

................................ ................................ ................. 21 4.2.1. Tolerance Limits

................................ ................................ ................................ ..... 21 4.2. 2. Other Censored Approaches (e.g., Survival Analysis)

................................ ........... 22 4.2.3. Use of Methods for Randomness

................................ ................................ ............ 24 5. Compliance with Permit Limitations

................................ ................................ .................... 25 5.1 Non

- Detected Measurements

................................ ................................ ......................... 25 5.2 Compliance Required Except During Upset or Bypass

................................ ................. 25Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

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## 1. Introduction

C omment er s have raised concerns about the statistical basis and calculations used to develop the limitations and standards. This essay summarizes and responds to these comments.

Section 2 addresses comments that percentiles of statistical distributions, such as the 99th percentile , do not reflect the entire range of variability that can be expected in the discharges from well

- designed, well

- operated facilities; and that t herefore some relief should be provided to facilities in the form of higher limitations and standards or a formal policy that allows periodic exceedance of the limitations and standards. The issue raised by comments is not unique to this rule. It has in fa ct been raised in comments on many other effluent guideline rulemakings throughout the history of the regulatory program. Moreover, it has been the subject of many lawsuits in various United States Circuit Courts of Appeals. EPA’s approach has been uphel d, notably in CMA v. U.S. EPA
, 870 F.2d 177 (5 th 

### Cir. 1989) and NWF v. EPA, 286 F.3d 554 (D.C. Cir. 2002).
The other sections address comments that were less frequently included in comments. Section 3 describes EPA’s data reviews and assumptions, including its baseline substitution for non

detected measurements. Section 4 a ddresses EPA’s choice of the modified delta

- lognormal distribution, including adjustments for positive autocorrelation, to model the data. Section 4 also describes EPA’s evaluation of alternative statistical approaches. Section 5 discusses the Agency’s policy on compliance with the limitation s

. In this essay, the term ‘limitations’ or ‘effluent limitations’ also refers to the standards established by today’s rulemaking.



## 2. Definitions of Limitations

The limitations in this rulemaking are numerical values that are bounds on the amounts of pollutants that may be discharged and are, in effect, measures of how well the production processes and wastewater treatment systems must be operated. These limitatio ns are a critical because they form the foundation for enforceable effluent limitations. In the course of developing effluent limitations guidelines and standards, EPA uses data on pollutants from facilities employing the appropriate level of control techn ologies to determine limitations. Although the regulations do not require that any particular technology be installed, they require plants to achieve effluent limitations that are based on the proper operation of the model technologies. NWF at 558.

The l imitations in to day’s rulemaking are intended to reflect vigilant control of discharges, including controlling sources of variability at well operated facilities . EPA recognizes that these limitations may require some dischargers that are generally good pe rformers to improve their process controls and/or treatment system operation and maintenance so that they are always good performers. EPA considers such a requirement is consistent with the statutory requirement thatEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

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- 4 discharge limitations reflect the best available technology economically achievable or the best available demonstrated technology.
Two types of limitations (or standards) for continuous dischargers are contained in these effluent guidelines regulations: daily maximum limitations and monthly a verage limitations. The primary goal of these limitations is for the facility to design to meet the long term average, but also to make sure the facility is always employing treatment technology that represents the appropriate level of control.

The fi rst type of limitation is the daily maximum limitation which is a restriction on the amount of pollutant in any one daily sample. The definition provided in 40 CFR § 122.2 states that a daily discharge is the “‘discharge of a pollutant’ measured during a c alendar day or any 24

- hour period that reasonably represents the calendar day for purposes of sampling.” The daily maximum limitation is either (1) an estimate of the 99th percentile of the distribution of the daily measurements (which is based on the prod uct of a variability factor and a long

- term average); or (2) expressed as the minimum level of the analytical method ( as is the case for t he rule ’s arsenic limitation)

. The second type of limitation is the monthly average limitation which is a restrictio n on the average of daily measurements taken during a month. The monthly average limitation is the estimate of the 95th percentile of the distribution of the monthly averages of the daily measurements. This percentile is estimated using the product of the long

- term a verage and variability factor. ( In some instances , a monthly average limitation was not established because the corresponding daily maximum limitation was established at the quantitation level for non

detected observations

. )

This section descr ibes EPA’s approach to determining appropriate limitations based on percentiles; explains that the statistical methodology is a framework for developing those limitations; describes EPA’s rationale in selecting percentiles as the basis for those limitation s ; and describes EPA’s approach to developing the arsenic daily maximum limitation when all observations are non

- detected

.



## 2.1 Limitations Based Upon Percentiles of Distributions
Consistent with longstanding practice in the effluent guidelines program, EPA d etermines a limitation (or standard) based on percentiles in two basic steps. This procedure recognizes the variable nature of production processes and wastewater treatment systems inherent even at facilities that are well

- designed and operated.

In the f irst step, EPA determines an average performance level (the “long

- term average”) that a facility with well

- designed and operated model technologies (which reflect the appropriate level of control) is capable of achieving. This long

- term average is calculat ed from the data from the facilities using the model technologies as explained in TDD Section 13. EPA expects that all facilities subject to the effluent limitations in question will design and operate their production processes and treatment systems to a chieve the long

- term average performance level on a consistent basis because facilities with well

- designed and operated model technologies haveEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

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- 5 demonstrated that this can be done.
EPA recognizes, however, production and wastewater treatment are complex a nd variable processes, especially at large, highly integrated industrial facilities. EPA further recognizes that the wastewater generated by such facilities exhibits considerable variation in pollutant concentrations when proce ssed through extensive and we ll

- designed systems. EPA also recognizes that there are other sources of variability such as sampling and analytical variability (see Section 3.1 for further discussion of the different sources). Therefore, in the second step of developing a limitation, EPA determines an allowance for all of these sources of variability. This variability is incorporated into the limitations through the use of the v ariability factors

. EPA then multiplies the long

- term average by the variability factor to obtain the limitation which is an approximation of the percentiles described in the next section.
Because the variability factors for this rule were derived from fa cilities employing the technologies representing the appropriate level of control (BAT or BADCT ), the limitations account for a level of variation that is within the capability of an individual facility to control. If a plant is designed and operated to ac hieve the long

- term average on a consistent basis, and if the facility maintains adequate control of process and treatment variation, the allowance for variability provided in the limitations is sufficient. In other words, today’s effluent limitations alre ady account for any reasonable variability likely to occur a t well

- operated facilities implementing technologies representing the appropriate levels of control

. 

## 2.2 Statistical Methodology is a Framework for Limitations Development

The statistical methodology is used as a framework to establish limitations that facilities are capable of complying with at all times. The limitations were never intended to have the rigid probabilistic interpretation ( i.e. , that a pre

- set proportion of violations are ex pected) as suggested by comments in this and other rulemakings. Statistical methods are appropriate for dealing with effluent data because the quality of effluent, even in well

- operated systems, is subject to a certain amount of random fluctuation or uncer tainty. Statistics is the science of dealing with uncertainty in a logical and consistent manner. Statistical methods, therefore, provide a logical and consistent framework for analyzing a set of effluent data and determining values from the data that form a reasonable basis for effluent limitations. EPA has done a reasonable job in developing the limitations and demonstrating their achievability. Statistical methods provide a critical part of the framework of the development process that establishes the re asonableness of the limitations. 

## 2.3 Selection of Percentiles
EPA must exercise its judgment to select a limitation which encompasses virtually all the potential reasonable variability within the control of the facility and yet is not so high as to be meaning less as a regulatory control device. EPA calculates limitations based on percentiles using the products of the long

- term averages and variability factors. The chosen percentiles are intended, on one hand, to be high enough to accommodate reasonably anticip ated variability within control of the facility and, on the other hand, to be low enough to reflect a level of performance consistent with the Clean Water Act requirement that these effluent limitations be based on the “best available technology economical ly achievable ” and “best availableEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 6 demonstrated control technology.” EPA has used an estimate of the 99 th 

### percentile of the distribution of the daily measurements as the basis for daily maximum limitations and standards for a number of years and numerous c ourts have upheld EPA’s approach. EPA has selected high but not unusually high percentiles as the basis for daily maximum and monthly average limitations and standards and no court has ever required EPA to base effluent limitations on a higher percentile l evel than that chosen by EPA. To the contrary, several Circuit Courts of Appeal have explicitly rejected the suggestion that EPA do so . Even the Ninth Circuit in Marathon Oil (564 F.2d 1272

- 74 (9th Cir. 1977)), while endorsing the need for an upset provisi on, specifically rejected the notion of an elevated percentile limitation. The Court pointed out that an overly high limitation would be “worthless as a control standard.” Indeed, most Circuit Courts considering the question have rejected the argument that any relief other than prosecutorial discretion is required to address the “problem” created by EPA’s use of percentiles such as 99. See Chemical Manufacturers Association v. U.S. Environmental Protection Agency , 870 F.2d 177, 230 (5th Cir. 1989); Weyerhae user Co. v. EPA , 590 F.2d 1011, 1056

- 1058 (D.C. Cir. 1978); Corn Refiners Association Inc. v. Costle , 594 F.2d 1223 (8th Cir. 1979); United States Steel v. Train , 556 F.2d 822, 841

- 842 (7th Cir. 1977); CPC International, Inc. v. Train , 540 F.2d 1329, 1336

- 1338 (8th Cir. 1976); American Petroleum Institute v. EPA , 540 F.2d 1023, 1035

- 36 (10th Cir. 1976).

The API court stated:
The whole problem of variability factors presents a practical effort to accommodate for variations in plant o perations. As technology for control of pollutant discharges improves, the variations should lessen. The choice of statistical methods lies within the sound discretion of EPA. EPA has acted properly and reasonably in establishing the variability factors be fore
us. EPA has determined, as a matter of policy, that the 99th percentile of the distribution of daily measurements is an appropriate basis for daily maximum limitations and standards in effluent guidelines rulemakings. EPA considers this to be a reaso nable determination of “best available technology” or “best available demonstrated technology” because the resulting limitations and standards are based on operators designing and planning to meet a level of performance commensurate with “best” while also accounting for variability in optimally performing processes and treatment systems. In other words, if EPA used a higher value percentile, then the ultimate limit would not reflect the appropriate level of control. This policy of using the 99th percentile as a basis has been adhered to in developing daily maximum limitations and standards in effluent guidelines rulemakings for many years. In 1976, the Court in API , supra , 540 F.2d 1023, 1035

- 36 (10th Cir. 1976) identified the daily variability factor “‘as t he 99th percentile probability of occurrence value divided by the mean.’ The result is ‘the multiplier by which the long

- term achievable values must be multiplied in order to derive the value not permitted to be exceeded.’” The definition and use of the da ily variability factor is the same in today’s rule. The API Court then rejected the refineries’ argument: “Because EPA selected the 99th percentile, the refineries say that they must be afforded at least four days a year, 1% of 365, when they may make exce ss discharges without fear of penalty. The reasoning does not impress us.”Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

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- 7 Many comments in effluent guidelines rulemakings have questioned EPA’s use of an estimate of the 95th percentile of the distribution of the monthly averages of the daily measurem ents for the monthly average limitations. EPA has determined, as a matter of policy, that the 95th percentile was a more appropriate choice for monthly average limitations in all industrial effluent guidelines rulemakings because the variability of monthly averages is less than the variability of individual daily measurements. This policy has been followed in developing monthly average limitations in all effluent guidelines rulemakings since 1987. Comments on rulemakings often assert that compliance monitor ing should allow for five percent exceedance of the monthly average limitation. For example, comment 70 of DCN EPA

- HQ

- OW

- 2009

- 0819

- 4499

- A1 provides a similar objection stating that “...by definition, the effluent level can be expected to exceed the limit 1 i n 20 months, on average, just by chance when a plant is in control.” EPA disagrees with this assertion as discussed below. EPA’s rationale for its policy decision to use the 95th percentile for monthly average limitations is related to the roles of the l ong

- term averages, the daily maximum limitations, and the monthly average limitations in controlling pollutant discharges. Facilities should operate their technologies in a manner that can achieve the long

- term average on a consistent basis while adequatel y controlling for variation in processes and treatment systems. Rather than setting a limitation that would require continuous dischargers to achieve the long

- term average over a specified period of time (such as a year), EPA chose to establish daily and m onthly limitations that would require facilities to demonstrate that the discharges are controlled on a daily and monthly basis. In establishing daily maximum limitations, EPA’s objective is to restrict the discharges on a daily basis at a level that is a chievable for a facility controlling its discharges at the long

- term average. EPA acknowledges that variability around the long

- term average results from normal operations. This variability means that occasionally most facilities may discharge at a level t hat is quite a bit greater than the long

- term average. (This variability also means that most facilities may occasionally discharge at a level that is considerably lower than the long

- term average.) To allow for these possibly high daily discharges on a da ily basis, EPA has established the daily maximum limitation to be the 99th percentile of the daily values. A facility that discharges consistently at a level near the daily maximum limitation would not be controlling its discharges around the long

- term ave rage which is part of EPA’s objective in establishing the daily maximum limitations. Such a facility would be considered in compliance as long as discharges
were less than the daily maximum limitation. However, operating processes and treatment systems to consistently achieve a level close to the limitation is poor practice because even a relatively small amount of variability would result in a high rate of non

- compliance with the daily maximum limitation. In establishing monthly average limitations, EPA’s objective is to provide an additional restriction that supports EPA’s objective of having facilities control their average discharges at the long

- term average. The monthly average limitation requires continuous dischargers to provide on

- going control, on a monthly basis, that complements controls imposed by the daily maximum limitation. In order to meet the monthly average limitation, a facility must counterbalance a value near the daily maximum limitation with one or more values well below the daily maxim um limitation. To achieve compliance, these values must result in a monthlyEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

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- 8 average value at or below the monthly average limitation.
As a basis for the monthly average limitation, EPA considers the 95th percentile of the distribution of the monthly aver ages more appropriate than some larger percentile, such as the 99th percentile. EPA has decided that it is unnecessary to provide an allowance for extreme monthly averages similar to the allowance provided by using the 99th percentile for extreme daily dis charges. Compliance with the daily maximum limitation is determined by a single daily value; therefore, EPA has decided that the 99th percentile provides a reasonable basis for the daily maximum limitation by providing an allowance for an occasional extrem e discharge. However, for this rulemaking, compliance with the monthly average limitation is determined by the average of multiple measurements ( number of measurements per month typically depend s on the pollutant being regulated ). Because compliance is bas ed upon more than one daily measurement, EPA has decided that facilities should be capable of controlling the average of daily discharges to avoid extreme monthly averages above the 95th percentile. By requiring facilities to avoid extreme monthly averages , more facilities are likely to design and operate their processes and treatment systems around the long

- term average (which is EPA’s objective). 

## 2.4 Use of Median for Long

- Term Average Basis of Limitation
EPA disagrees with assertions in comments' assertions that use of a mean (or arithmetic average) would be more appropriate than the median in calculating the long

- term averages in developing limitations. The median is the value at which half of the observe d episodes will be above and half will be below. In this manner, all values, not just one or two episodes, contribute to the determination of the long

- term average (LTA). The midpoint is precisely that: half of the episode long

- term averages are higher tha n the median, and half are lower. As a measure of central tendency, the median tends to ameliorate the effects that extreme values, high

- end as well as low

- end, can have on the average.
It is not true that EPA's use of a median for the option lo ng

- term a verage will result in “ 1

- in

- 4 [or 1

- in

- 2] chance that the sample minimum and maximum LTAs bracket the true median LTA.” (DCN EPA

- HQ

- OW

- 2009

- 0819

- 4655

- A18, Comment Excerpt #25 (in Comment Code #31.h). EPA disagrees that it is necessary for facilities select ed as the basis of a limitation to have similar means and/or variance. The implication is incorrect that facilities and/or data must somehow be from the same population as a necessary condition for use in calculating the option long

- term average and variab ility factor. The Agency has combined episode

- level values from facilities with appropriate, well operated treatment technology to define the overall regulatory values. Because these facilities are well operated, they provide valid information concerning w ell

operated treatment systems and combining their values has the effect of giving appropriate weight to each of them in determining overall values.



## 2.5 Daily Maximum Limitation is Consistent with Statistical Framework
EPA is establishing certain effluent l imitations equal to the detection limit 1 

### for the effluent data

1 

### As used here to describe these effluent limitations, the term “detection limit” refers to the quantitation limit (QL), not the minimum detection level (MDL).Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

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- 9 that were used to develop the limitations because all observations were non

- detects. This is the case for the arsenic daily maximum limitation established for discharges of gasification wastewa ter from new and existing sources, which is based on evaporation. This is also the case for arsenic and selenium daily maximum effluent limitations for discharges of FGD wastewater from new sources and for discharges from existing sources under the volunta ry incentives program, which are based on the combination of chemical precipitation, softening and evaporation. As it has for the other regulated pollutants, EPA established the se daily maximum limitation s based on data in the record indicating that th e limitations reflect the appropriate level of control. T he Agency is establishing the limitation s based on the observed performance of facilities operating the model technologies. In addition, the Agency notes that the model technologies vaporize the wastew ater, leaving behind nonvolatile constituents such as arsenic. The limitation applies to the cooled water vapor which, as a result of the vaporization process, does not contain measurable levels of arsenic in gasification wastewater, or of arsenic and sele nium in FGD wastewater. Although the Agency’s has an historical practice of setting effluent limitations based on 99th percentile estimates from the probability distribution of daily values, this is not a requirement under the Clean Water Act. The Agency has discretion with regard to demonstrating the technological achievability of limitations for the model technologies selected as the basis for limitations. Historically, the Agency has shown that limitations are unlikely to be exceeded because the 99th p ercentile is used as a basis for the variability factor used in developing the daily maximum limitation. The Agency has demonstrated that the limitations discussed here are achievable in the sense that measurement results for wastewater obtained from well operated and maintained evaporation processes are unlikely to exceed the detection limit. EPA considers such limitations appropriate for data that are entirely non

- detected measurements. Effluent limitations provide a reasonable allowance for the variabili ty that exists when appropriate treatment processes are well operated and maintained and laboratories follow the appropriate procedures in analyzing the samples. For this rule, EPA considers the arsenic limitation for gasification wastewater, and for arsen ic and selenium in FGD wastewater, provide a reasonable allowance for the variability that exists when evaporative processes are well operated and maintained because of the data from the model technology have demonstrated that the process results in
measur ements below detectio n. Thus, EPA concludes that the limitations are supported. Furthermore, modeling of the data using the statistical approaches is not required.


## 3. Data Review and Assumptions

As part of developing the limitations, EPA reviewed all of the data that it received and collected to verify that the data represent the performance level that well

- designed and operated model technologies can achieve. This section describes data issues including the sources of variability; evaluation of the data; use of averaged measurements; statistical outliers; exclusion of time periods; baseline value substitution; and pooling of data.



## 3.1 Data Include All Sources of Variability
All data collected by EPA and used to determine limitations and standards contain manyEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

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- 10 components of variability, and any process used to analyze these data, such as the methodology used to determine limitations and standards, entrains the variability inherent in the data

. The result is that any value determined from these data, such as an e ffluent limitation or standard, contains the variability inherent in the data from which it is derived.
The effluent data from a particular plant contain many components or sources of variability

. This may be illustrated by the following equation:

V (to tal) = V(day) + V(season) + V(sampling) + V(shipping) + V(storage) + V(analytical) + V(other) where, V(total) is the total variability in the data V(day) is the daily variability V(season) is the seasonal variability (winter, spring, summer, fall) V(sampling) is the sampling variability; i.e. , variability in the physical process of obtaining the sample V(shipping) is the variability due to variation in shipping conditions V(storage) is the variability due to variation in sample storage conditions V( analytical) is the variability due to the analytical or measurement process V(other) are other, unknown or unaccounted for sources of variability
In producing effluent limitations and standards, EPA does not attempt to determine the contribution of each c omponent of variability to the total, for two reasons: (1) t he studies EPA conducts would need to be structured differently to determine each individual component

. Special studies would have to be conducted and additional data would have to be collected an d analyzed to address each component of variability of interest

. For example, if EPA wished to determine the shipping component of variability, EPA would need to evaluate all means of sample shipping used (airplane, helicopter, truck, train, bus, other) an d the shipping conditions (temperature, pressure) ; and (2) All components of variability are included in the total

. Because samples are collected at various plants on various days during various seasons and are shipped by various means to various laborator ies and stored at various temperature for various times, and are analyzed by various analysts in various laboratories, all of these sources of variability are inherent in the total variability of the data

. It is unnecessary (and very expensive and time
con suming) to conduct the studies, collect and analyze the data necessary to separate and estimate each component of variability because the effluent limitation or standard was developed taking this variability into account

. Furthermore, there would always be some portion of variability that cannot be specifically identified.
The effect of sources of variation in measured pollutant values, i.e. , the available data, can be illustrated as follows

. If an observed or measured value of a pollutant in a sample is denoted by X then X = T + D where T = the true, actual amount of the pollutant present in the sample and D = discrepancy in the measured value that represents the difference between the trueEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

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- 11 amount and the measured amount.

The X values constitute the information available to the Agency to define what is in wastewater samples and assess treatment performance

. The sources of variability cited above cause the measured values to deviate from the true amount T; these deviations are represented by D

. Only
on e of these sources of variability is due to analytical variability

. However, whatever the sources of variability that contribute to D and whatever the magnitude of D, it is incorporated into the X or measured values and any calculations performed with the X values

. Because the limitations and standards are calculated from the X values resulting from analytical methods approved for NPDES purposes , all sources of variability that are in the measured values are incorporated into the limitations and standards t hat are calculated from the measured values

. Since the values of D and T are not known for any given measured value, it would not be appropriate to provide an allowance for D or any component of it such as the analytical component

. However, it should be noted that the net effect of the sources of variability can cause either positive or negative departures from the true amount in the individual measured values

. The Agency can state unequivocally that analytical variability is one of many inherent componen ts of variability in all measurements used for this rulemaking, and therefore, that analytical variability, along with the other sources of variability, has been taken into account in the development of limitations through data.
The greater the variabilit y from any of these sources or any other source, the higher the variability factor and the higher the effluent limit

. Therefore, the process for developing an effluent limit is self

- correcting, in that an increase in error or variability in the data, regar dless of the source, results in an increase in the effluent limit

. Additional allowance for any particular source of variability such as analytical or laboratory error is not warranted.
EPA has not incorporated an allowance for i nter facility or between f acility variability because it represents sources of variation that are not controllable at individual facilities. In complying with the limitations based upon the model technologies, a given facility need only control its own discharges and does not need to consider the discharges by any other facility. 

## 3.2 Evaluation of Data
The Agency considers facility level performance to be a critical factor in determining overall standards and, thus, uses facility level data from as many facilities as are available

. EPA completed its detailed study in 2009 and repeatedly requested the industry to provide data for the model technologies and explained its rationale for requesting the data

. EPA has used all of the available relevant data including the long

- term data prov ided by the industry and evaluated the data to ensure that the pollutants were present in the influent at sufficient concentrations to evaluate treatment effectiveness at the facility in this rulemaking

. Thus, EPA has used all of the relevant, available da ta

. 

### 3.2.1. Available Data
A number of comments questioned the use of few facilities and number of data points for the determination of the limitations and standards

. There is no question that the Clean Water Act specifically auth orizes EPA to base limitations a nd standards on the performance of a singleEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

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- 12 facility

. I t is well

- established that BAT may represent the best performance in the industrial category and thus, it is not unusual for EPA to base effluent limitations on data from a single facility

. For example , in the OCPSF guideline, EPA based 38% of the limitations on the performance of a single facility

. EPA develop s effluent limitations and standards on the basis o f data from facilities using BAT technology

. The Agency uses available data that meet s the data acceptance criteria to the extent it can in order to incorporate the data into its analyses for decision making on the rule

. EPA’s approach is reasonable

. Courts have recognized that EPA must operate with available data

. See e.g., BASF Wyandotte Corp. v. Costle 598 F.2d 637, 652

- 653 (1st Cir

. 1979) where the Court stated that:
Given this admitted information shortage EPA must make use of the information it has, recognizing the limits of the information; EPA cannot refuse to carry out its mandate, wait ing for the day when it might possess perfect information . . . The same answer applies to petitioners’ claim that the data . . . were too sparse to support any conclusion about their effectiveness . . . EPA used all the data it could accumulate

. Had the i ndustry come forward with more data there is every indication that EPA would have used it . . . It was up to EPA to decide whether the limited data base was sufficient to support the conclusions reached

. We hold that deciding to base conclusions on the lim ited data available was a reasonable exercise of discretion given the regulatory mandate.
EPA disagrees with comment s that its data sets are not "statistically representative" and cannot predict future discharges or variability

. In fact, small samples of good performance can result in useful estimates of treated effluent quality

. Estimates of the necessary parameters for the lognormal distribution can be calculated with as few as two distinct detected values in a data set (in order to calculate the varianc e, two distinct detected values are the minimum number that can be used to obtain an estimate of the variance). Also see Essay Section 5

.



### 3.2.2. Representativeness of the Data
Comments asserted that the data were not representative

. EPA conducted sampling at facilities that were determined by EPA to be performing the model treatment technology. Further, via thorough engineering review, EPA determined that data from those facilities, as well as certain data supplied by the industry, to be representative of the model technology

. Based on this technical review, EPA excluded data points that were not representative of the normal treatment process

. Prior to conducting the sampling episodes, EPA confirmed with the facilities that the wastes treated during EPA’s sampling episo de were representative of waste treatment processes overall at these facilities

. Moreover, no comment s provided any justification or specific details to support the view that the wastes treated at the model facilities were not representative of w astes treated throughout the industrial category in terms of process or treatment system characteristics, concentrations, variation in discharges, time periods, s easons, or other factors

.



## 3.3 Use of Averaged Data
In general , the Agency does not consider multiple analysis results collected within a single day, such as a grab sample and its duplicate sample, should be treated as separate independent valuesEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

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- 13 in limitatio ns calculations . This practice would not be consistent with NPDES regulations and would introduce potential sources of variation that are not generally appropriate for inclusion in effluent limitations. The Agency's approach of averaging multiple analytica l results for the same facility, sampling site, sampling date and pollutant is consistent with standard, conventional practice in environmental analytical work and gives one day's sampling information appropriate weight in determining effluent limitations.
Combining the results for a given day is also consistent with requirements of NPDES regulations at 40 CFR § 122 .2 which define the daily discharge. For limitations expressed in units other than total mass discharged during the day ( e.g

. , concentration u nits), the daily discharge is the "average measurement of the pollutant over the day." In addition, 40 CFR § 122.41(l)(4)(iii) requires that “Calculations for all limitations which require averaging of measurements shall utilize an arithmetic mean unless o therwise specified by the Director in the permit.”



## 3.4 Data Exclusions
In developing its limitations, EPA has not applied statistical outlier evaluation , such as excluding data outside of four standard deviations as the commenter has done for its data. EPA does not consider the commenter ’ s approach to be necessary for the effluent data used as a basis of the limitations ; furthermore, EPA does not consider the commenter’s approach appropriate because it blindly excludes data values without considering whether they are associated with normal process operations. In this manner, the commenter’s approach could lead to underestimating the variance . Instead, EPA ’ s intent is to use as much data as possible in developing the limitations

. Only data that do not meet the evaluation criteria are disregarded after a rigorous engineering evaluation of the plant conditions that are likely to affect effluent discharge levels

. Comments incorrectly assert that “ EPA removed valid data points representing elevated concentrations that would be expected in the tails of the distributions. ” (e.g., DCN EPA

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- A1, Comment Excerpt #172 (in Comment Code #31) ) . Contrary to comment assertions, EPA did not eliminate any data for the sole reason that they were in the tails of the distribution. Consistent with its practice for other industrial guidelines, EPA only eliminated data that did not represent the performance of the model technology. See DCN SE05733 for EPA’s discussion of data exclusions based upon engineering evalu ations.

EPA notes that t he result of consistently using some of th e statistical outlier tests or excluding data outside , for example, four standard deviations would often be a decrease in variability. EPA does not wish to reduce legitimate variability that is inherent in the treatment process. EPA only excluded data that were not consistent with proper operation of the model technology. EPA considers this approach to be entirely appropriate. These excursion data do not represent the typical variability expected from well

- designed and operated processes and treatment systems. Furthermore, the upset provision in 40 CFR Section § 122.41(n)(2) states that an upset constitutes an affirmative defense to an enforcement action if the procedural requi rements of paragraph (n)(3) are met. Therefore, it would be inappropriate and unnecessary to include data that represent upset conditions in developing limitations. Because facilities are not expected to be able to comply with the limitations under upset c onditions, EPA excludes data from upset conditions in developing limitations.Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 14 EPA also excluded data that were not representative of proper process operations or treatment control that might not qualify for the upset defense. The upset defense can only be used for conditions beyond the discharger’s reasonable control. (For example, operator error would not qualify for the upset defense.) EPA considers these exclusions also appropriate as the data do not properly represent the capabilities of the technologi es that serve as a basis for the limitations. Where EPA has excluded data, the record clearly states which data points were excluded and th e rationale for the exclusion (s ee DCN SE05733 )

. In essence, if any unexamined performance were to qualify for inclu sion in the data sets used to develop the limitations, then the ultimate limitations would not reflect the appropriate level of control.



## 3.5 Baseline Value Substitutions
In general, EPA used detected values or sample

- specific detection limits (for non

- dete cted values) in calculating the limitations. 2 

### However, there were some instances where EPA substituted a baseline value for a detected value or a sample

- specific detection limit that was lower than the baseline value. EPA often takes this approach to account for the possibility that certain detected or non

- detected results may be at a lower concentration than generally can be reliably quantified by well

- operated laboratories. This approach is consistent with the way EPA has calculated limitations in pr evious effluent guidelines rulemakings and is intended to avoid establishing an effluent limit that could be biased toward a lower concentration than facilities can reliably demonstrate compliance with. 3 

### A fter excluding data as described in Section 3.4 , EPA compared each reported result to a baseline value. Whenever a detected value or sample

- specific detection limit ( i.e. , sample

- specific quantitation limit) was low er than the baseline value, EPA used the baseline value instead and classified the value as non

- detected (even if the actual reported result was a detected value). For example, if the baseline value was 5 micrograms/liter

2 

### F o r t h e p u rpo s e o f t h e d i s c us s i o n o f cal c u lating t h e l o n g

- te r m a v e r a g e s , v a r ia b il it y f act or s , a n d e ff

l u e n t l i m it a ti on s , t h e te r m “ d etecte d ” r e f e r s to a n a l y tical r e s u lts m ea su r ed a n d
r e por ted a b o v e t h e s a m

p l e

- s p ec i f ic q u a n tit a ti o n l i m it ( Q L )

. T h e te r m “ n o n

- d etecte d ” r e f e r s to v a l u es t h at a r e b el o w t h e m e t h o d d etecti o n l i m i t (M D L ) a n d al s o th o s e m ea s u r ed b y t h e la bor at or y as b ei n g b e t w e e n t h e M D L a n d t h e QL

.

3 

### For example, if a daily maximum limit were established at a concentration lower than the baseline value, although some laboratories may be able to achieve sufficiently low quantitation levels, it is possible that typical well

- operated laboratories may not be able to reliably measure down to that level. In such cases, a facility would not be able to demonstrate compliance with the limit. A similar situation could arise with monthly average limitations , particularly if the limit is at a concentration near the baseline value. EPA does not intend to suggest that the baseline value should be established at a level that every laboratory in the country can measure to, or that limitations established for the ELGs must be established sufficiently high that every labo ratory in the country must be able to measure to that concentration; however, it is appropriate to use baseline values that generally can be reliably quantified by well

- operated laboratories. This approach achieves a reasonable balance that establishes lim itations that are representative of treatment system performance and protective of the environment, while at the same time ensuring that facilities will have adequate access to laboratories with the analytical capabilities necessary to reliably demonstrate complia nce with the limitations

.Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 15 ( μ g/L ) and the laboratory reported a detected value of 3 μ g/L, EPA’s calculations would treat the sample result as being non

- detected with a sample

- specific detection limit of 5 μ g/L.
EPA used the following baseline values for each pollutant in the development of the effluent limitations for the steam electric rulemaking:

 

### Arsenic: 2 microgram/liter ( μ g/L )

.
 

### Mercury: 0.5 nanogram/liter ( ng/L ).

 

### Nitrate

- nitrite as N: 0.05 milligram/liter ( mg/L ).

 

### Selenium: 5 microgram/liter ( μ g/L )

.
 

### TDS: 10 milligram/liter ( mg/L )

. EPA determined the baseline val ues for mercury, nitrate

- nitrite as N, and TDS using the minimum levels (MLs) established by the analytical methods used to obtain the reported values or a comparable analytical method where an ML was not specified by the method. 4 

### The baseline values for a rsenic and selenium are based on the results of MDL studies conducted by well

operated commercial laboratories using EPA Method 200.8 to analyze samples of synthetic FGD wastewater [CSC, 2013, DCN 03872]

. It should be noted that in cases when all concentr ation values are above the baseline value, then the baseline value would have no effect on the concentration values and subsequent limitations. Effluent data for mercury and TDS were all above the baseline values ; therefore , EPA did not substitute any baseline values when calculating limitations for these parameters. The document entitled Sampling Data Used as the Basis for Effluent Limitations for the Steam Electric Rulemaking [U.S. EPA, 2015, DCN SE06277] provides a list of all the effluent data used to calculate the limitations, as well as what the values were adjusted to using baseline substitution.

I n addition to calculating the limitations for each pollutant for each technology option adjusting for the baseline values shown above, when appropriate , EPA also calculated effluent limitations using all the valid reported results ( i.e. , without substituting baseline values and/or changing the classification of the result). As noted above, the reason for substituting baseline values is generally to preve nt establishing an effluent that could be biased toward a lower concentration than facilities can reliably demonstrate compliance with. In baseline substitution, the effluent limit is often unchanged but sometimes is adjust ed upward slightly.

To address comments such as “ EPA substituted baseline values for reported measurements which had the effect of reducing estimated variability factors. ” in DCN EPA

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- A1, Comment Excerpt #172 (in Comment Code #31), EPA compared the effect of varying its assumptions for the non

- detected measurements. For the steam electric ELGs, EPA notes that using baseline substitution increases the limitations in a few instances. 5 

### However, EPA

4 

### T h e b a s eli n e v a l u es f

o r m e r c u r y a n d n it r at e

- n it r ite as N a r e e q u al to t h e ML s s p ec i f ied in E P A M et h od s 1631 E a n d 353.2 , r e s p ecti v e l y

. T h e m e t h o d E P A us ed to a n a l y ze fo r T DS ( Sta n d a r d M et h o d 2 54 0 C ) do es n o t e x p licit l y s tate a M D L o r M L

. H o w e v e r , E P A M et h o d 160. 1 is s i m ilar to Sta n d a r d M et h o d 2540 C a n d t h e l o w er l i m it o f i ts m ea s u r e m e n t r a ng e i s 1 0 mg / L ( i

. e

. , t h e n o m i n al q u a n titati o n l i m it )

. T hus , E P A us ed 1 0 mg / L as t h e b a s el i n e v a l ue f o r T DS. 5 

### This occurs for the selenium limit s for gasification wastewater and for FGD wastewaterEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 16 found that using baseline substitution has the opposite and unexpected ef fect in certain other instances of suppressing the limitations. 6 

### This downward effect on the effluent limit occurs because , although the baseline substitution increases the long

- term average value slightly, it also reduces the variability of the dataset , a nd the resulting net effect is a lower effluent limit. This means that using baseline substitution in such instances would result in a lower effluent limit than EPA would otherwise calculate directly from the unadjusted dataset. Because EPA wants to
ensure that facilities can achieve the effluent limitations established by the rule, EPA evaluated both the baseline

- adjusted and unadjusted limitations for each technology option and used the higher result for the final ELGs. EPA’s comparison of the baseline

- ad justed and unadjusted effluent limitations is presented in “ Statistical Support Document: Effluent Limitations for FGD Wastewater, Gasification Wastewater, and Combustion Residual Leachate for the Final Steam Electric Power Generating Effluent Limita tions Guidelines and Standards ” [DCN SE05733].



## 4. Modified Delta

- Lognormal Distribution

Any approach to modeling and analyzing the data are approximations. In developing the limitations for this rule , the Agency selected the modified delta lognormal distribution as the most appropriate approach to modeling the effluent data

. The following two sections describe EPA’s evaluation of the modified delta

- lognormal and alternative statistical approaches. 

## 4.1 Selection for Effluent D ata

EPA’s e xperience has show n that daily pollutant concentrations in effluent discharges of a given facility generally follow a lognormal distribution

. However, for a given pollutant, an effluent data set from a typical sampling episode or self

- monitoring episode can include a mixtur e of samples with quantifiable ( i.e. , measurable) concentrations and samples having no quantifiable measure of the pollutant. A data set may represent wastewater samples having both high and low pollutant concentrations, depending on the situations in whic h the industrial processes or sources generated the pollutant at the time of sampling. In some data sets, the higher and lower concentrations manifest themselves into two groups: detected values associated with higher sample concentrations, and non

- detecte d values associated with sample concentrations that are below the nominal quantification limit of the analytical method

. To properly handle mixtures of detected and non

- detected data generated in such situations, EPA has adopted a modification of the del ta

- lognormal distribution to model pollutant effluent concentrations when developing effluent limitations

. The modified delta

- lognormal distribution is appropriate in that it models effluent data as a mixture of detected measurements that follow a lognorma l distribution and non

- detected measurements that occur with a certain probability. Because the steam electric effluent data contained a mixture of detected and non

- detected measurements, the modified delta

- lognormal distribution is appropriate to use in m odeling the

based on evaporation technology.

6 

### This occurs for selenium and nitrate

- nitrite as N in FGD wastewater (based on biological treatment technology) and for arsenic based on chemical treatment technology

.Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 17 effluent data to develop the limitations. In addition, t he modified delta lognormal model has been upheld on several occasions in court challenges and has support in peer reviewed literature. 1 

### In the “original” delta

- lognormal distribution mo del, the discrete portion of the model, representing the proportion of non

- detected values, consisted of a specified probability (“spike”) assigned to a zero concentration value

. B ecause detection limit s may differ among the samples due to a variety of analytical factors (e.g., detection limits of the lab instruments; sample dilution procedures) , EPA modified the delta

- lognormal model by replacing the discrete, single

- valued spike by a discrete distribution made up of multiple spike s

. Each spike in this modification
occurs a t a distinct observed detection limit

. Therefore, because non

- detected results are represented by their detection limits in this approach, some researchers consider this approach as a variation on a substitution m ethod, where non

- detected results are assigned some numeric quantity for purposes of the analysis.
Some advantages of the modified delta

- lognormal model are as follows:

 It explicitly accounts for the assumption that distinct processes can occur in efflue nt streams.

 It o vercomes poor fit of substituted concentration values (for non

- detects) that may impact (censored) lognormal maximum likelihood estimation.

 The mean and variance exist in closed form expressions, and estimates are relatively easy to calcula te (e.g., does not require any numerical optimizations) and thus estimates are based entirely upon the performance data.


### 4.1.1. Autocorrelation Correction

The limitations (except arsenic limitations described in Section 2.5 ) include an adjustment for possible bia s due to statistical autocorrelation. The adjusted variance then better reflects the underlying variability that would be present if the data were collected over a longer period. When data are said to be positively autocorrelated, it means that measurement s taken at specific time intervals (such as 1 day or 2 days apart) are related. For example, positive autocorrelation would be present in the data if the final effluent concentration was relatively high one day and was likely to remain at similar high valu es the next and possibly succeeding days.

The autocorrelation used for the calculation of the limitations is based on the maximum likelihood estimate of the serial correlation when fitting an autoregressive lag

- 1 (AR(1)) model to the data. This procedure accounts for the timing of the sample collection. EPA’s methodology for autocorrelation is appropriate whe ther or not the samples are collected on sequential day s and
re gardless of the sign of the correlation (positive/negative) . EPA does not assume or re quire that the samples are collected at the facilities be sequential daily samples.

1 

### J. Aitchinson (1955). “On the distribution of a positive random variable having a discrete probability mass at the origin.” Journal of the American Statistical Association 50: 901

- 908. W.J. Owen and T.A. DeRouen, “Estimation of the Mean for Lognormal Data Containing Zeroes and Left

- Censored Values, with Applications to the Measurement of Worker Exposure to Air Contaminants,” Biometrics 36: 707

- 719, 1980.Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 18 Appendix B of the TDD describes in detail the equations used to calculate the limitations in the final rule and how the autocorrelation is used in those calculations. The autocorrelation is used in two places, first to adjust the standard deviation of the observed effluent concentrations to estimate the standard deviation of the long

- term effluent concentration series (see equations (17) to (19)), and second to calculate th e standard deviation of the monthly average (see equations (34) and ( 35 )). The first calculation depends on the sequence of sample collection dates. The second depends on the assumed monitoring frequency used to calculate the monthly average limitation. The equations for this final rule were previously used for the Iron and Steel effluent guidelines except those g uidelines used equation ( 19 ) instead of equation (18)

. Because the samples for this rule were not collected on sequential days, equa tion ( 18 ) is used. In equation (18) in Appendix B of the TDD for the final rule, EPA calculates the ratio of the variance of the sample of N correlated observations to the variance of the long

- term time series. The calculation accounts for the spacing of the sample co llection dates. Based on the cited source, the equation given in the comment is the ratio of the variance of the mean (as opposed to the data) of N correlated sequential observations to the variance of the mean of N independent observations.

EPA acknowle dges that, in its calculations for the proposed limitations, 1) there was a programming error affecting the calculated correlation which affected the correlation for selenium in particular; and 2) the calculations for the proposed rule had the unexpected r esult that some limitations decreases when the assumed correlation was increased from zero. EPA corrected the programming error for calculating the autocorrelations for the final rule. In response to comments , EPA reviewed how the autocorrelation adjustmen t was handled in the proposed rule and in previous effluent guidelines. As a result of that review, EPA revised the equations used to calculate the effluent limitations for the final rule. Using the revised equations, the autocorrelation adjustment is appl ied to the continuous portion of the modified delta

lognormal distribution without treating all observations as detected. Using the resulting equations, the autocorrelation

- adjusted variance always increases as the autocorrelation increases. Given these ch anges, EPA does not agree that any other changes need to be made to the calculation procedures.



### 4.1.2. Precision and Bias
Comments express concern with precision and bias associated with the statistical approach. Precision refers to the variability, or stability, of an estimate. Bias refers to the accuracy of an estimate. Regardless of the statistical model EPA uses, parameters will necessarily be more precisely estimated when the sample sizes used in the statistic al analysis are large. Sample size enters into the standard error calculation of estimates (s.e.; where s.e. is the standard deviation of an estimate) in the denominator; thus larger sample sizes result in decreased variability of parameter estimates. In t heory, the pr imary determinant of whether a precision constraint is satisfied is sample size. The greater the sample size, the greater the precision (i.e., the smaller the standard deviation) of an estimated parameter will be.

Bias , or accuracy, is the di fference between the estimated value of a given parameter an d the true value of said parameter. Several parameters are used in calculating the limitations; mean andEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 19 standard deviation of the log

- transformed concentrations, long

- term average (LTA), daily
va riability factor (VF1), standard deviation of the untransformed measurements, 99 th 

### percentile of the distribution of daily concentrations, and 95 th 

### percentile of the distribution of the monthly average concentrations. Comments (e.g., DCN EPA

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- A1, Comment Excerpt #15 (in Comment Code 31) spuriously assert that “Use of small data sets leads to underestimation of standard deviation, and hence, underestimation of regulatory limits.” Admittedly, large samples are preferred to small samples; h owever, the comment only raises half of the issue by emphasizing an under

- estimation of a parameter. A parameter estimate from a small sample may be just as likely to overestimate a parameter. The comment’s emphasis on under

- estimation is unwarranted.

A dditionally, eliminating biased parameter estimation globally is difficult, if not impossible in most cases, given the number of parameters that are being estimated. Some parameters may be biased while others are not. A parameter that is unbiased in a line ar scale (original measure) may become biased when transformed into a log scale (transformed measure); and vice versa. For example, for lognormally distributed data, the variance of the log

- transformed concentrations is mean unbiased but the standard devia tion and daily variability factors calculated from the variance are biased. The mean of the log

- transformed concentrations is both mean and median unbiased. If the variance of the log

- transformed concentrations is scaled to be median unbiased, then the LTA and standard deviation of the untransformed concentrations will not be median unbiased. As a result, there is no approach that will make all parameters unbiased, based on either the expected mean or median. Thus, the selection of the estimation methods in volves judgment as to which biases should be minimized.
If the data have a log normal distribution, the estimates of the LTA, VF1, standard deviation of the concentrations, 99 th 

### percentiles of the daily values and 95 th 

### percentile of the monthly averages are all positively skewed. EPA is particularly concerned about high values and is thus more interested in estimates that are relatively unbiased based on the mean (which is more sensitive to the high values than the medi an). Some comment s suggest that the standard deviation of the untransformed measurements (estimated from the mean and standard deviation of the log

- transformed measurements) should be adjusted to be median unbiased (i.e., the estimates are just as likely t o be lower than the true value as higher than the true value). A particular comment provides a possible algorithm for adjusting the standard deviation to be median unbiased but does not address the bias associated with other parameters. The comment provide s no justification for why median unbiased

- ness should be preferred to mean unbiased

ness or why the bias of the standard deviation is more important than other parameters. Given that the equations used by EPA are based upon standard methodology , EPA consi ders the equations as implemented to result in a reasonable compromise between median and mean unbiased estimates for the parameters used to calc ulate the limitations.



### 4.1.3. Engineering Analyses Used to Evaluate the Model
EPA is concerned that the presentation of the e ngineering analyses presented at proposal may have been misconstrued in comments that assert or imply that EPA expects occasional exceedances of the limitations. This conclusion is incorrect as EPA has established that facilities are capable of com plying with the limitations at all times by properly operating and maintainingEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 20 their processes and treatment systems. As explained in Essay Section 2.2 , the statis tical methodology is used as a framework to establish the limitations based on percentiles. Statistical methods provide a logical and consistent framework for analyzing a set of effluent data and determining values from the data that form a reasonable basi s for effluent limitations. The limitations were never intended to have the rigid probabilistic interpretation that has been adopted in comments on this and other rulemakings. That is, merely because probability models are used to develop limitations, faci lities are not expected to operate processes and treatment systems so as to violate the limitations at some pre

- set rate. Rather, facilities are expected to design and operate processes and treatment systems in a manner (the long term average) that will
re sult in compliance with limitations.
The statistical analysis used to develop the monthly average limitations uses daily measurements taken weekly over a month

. To evaluate the achievability of the limits, EPA conducts a second review of the limits once c alculated. To do this, EPA first compared the daily effluent values to the daily limits to identify any values above the daily limit. EPA then compare d the effluent d ata to the monthly average limits, for those periods where there are sufficient data to re present weekly monitoring over a month , and identified those months where the average of all daily values for the month is above the monthly limit.
After thoroughly evaluating the results of the comparison between the limits and the effluent values used t o calculate the limits (see details below), EPA determined that the statistical distributional assumptions used to develop the limits are appropriate for the data (that is, they provide a reasonable “fit” to the actual effluent data) and the limits for eac h wastestream are reasonable and achievable. If a plant properly designs and operates its wastewater treatment system to achieve the long

- term average for the model technology (rather than targeting performance at the effluent limits themselves), it will b e able to comply with the limits. In comparing the effluent data to the limits, EPA noted there are instances where one or more daily values in a month are higher than the monthly limit, but the average of all results in a month are equal to or less than the monthly average limit. Instance s such as these are normal and consistent with the way effluent limits are calculated and implemented in NPDES permits. (See the statistical support document for more information.)
Based on the comparisons of effluent and influent data to the limits, and information described elsewhere in the record for the ELGs, EPA determined that the statistical distributional assumptions are appropriate for the effluent data and that the daily maximum and monthly average limits for the rule are reasonable and achievabl e. Industry argues that to calculate the monthly average limitation, EPA should have take n all data , even where there was only one sample to represent the performance of the whole month . EPA disagrees because doing so would not correspond to the monitori ng frequency and one data sample in a month would not be representative of what the facility achieves over a month where weekly samples are taken. EPA’s approach is consistent with the manner in which EPA calculated the limits and by which plants will mon itor for compliance with NPDES permits. It is also consistent with the monitoring frequency EPA has generally observed in NPDES permits, for those pollutants for which the permit includes effluent limits. Additionally, it is consistent with EPA’s methodolo gy for estimating compliance costs for the final rule, which includesEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 21 estimated O&M costs for weekly compliance monitoring. Most importantly, EPA’s approach is a reasonable approach for conducting the engineering review because an assessment that uses data from less frequent monitoring may more closely reflect the daily variability than the monthly variability and therefore would not accurately reflect whether the monthly limit would have been met. EPA identified some cases where only one sample was taken d uring a month and the resulting concentration value for that one sample is above the monthly limit. In such cases, additional monitoring of the effluent (e.g., at weekly intervals) would likely result in a monthly average that would fall below the monthly average limit. For example, comparing with the limits calculated for arsenic, the 4 weekly samples collected from Hatfield’s Ferry in February 2010 are all equal to or below the daily limit of 11 μg/L. One of these observations (11 μg/L) is higher than th e monthly limit of 8 μg/L. However the average of all daily values for the month is 7.5 μg/L, which is below the monthly limit.



### 4.1.4. Cross

- Validation (e.g., Jackknife)
Comments suggest that EPA use cross

- validation methods such as jackknife procedures (e.g., Excerpt 122 in EPA

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- A1) in evaluating the limitations. EPA disagrees that cross

- validation procedures are necessary in evaluating the limitations and the statistical model. Using the jackknife method to estimate or forecast a frequency of limit exceedance is inappropriate. EPA’s position here is similar to the position described in the sections concerning statistical methodology (2.2) and the 99 th 

### and 95 th 

### percentile selection (2.3); these limits are not meant to be interpreted in a rigid probabilistic fashion (i.e. that a pre

- set proportion of violations are expected). Part of EPA’s intent in setting the prescribed limits is to encourage facilities to target long term average discharges rather than fo cusing on operating just under the prescribed limits. EPA used only data from actual effluents from well operated facilities using the technology

- basis for the BA T ad BADCT limitations.



## 4.2 Alternative Statistical Approaches

While EPA has found that the m odified delta

- lognormal model is appropriate to apply to effluent data for many industrial categories, EPA also recognizes that there are alternative statistical techniques that could be used to model data that contain both detected and non

- detected
measur ements. Furthermore, in certain situations, the modified delta

- lognormal approach may be improved relative to yielding more accurate estimates of distributional parameters. This section addresses comments that asserted that other statistical approaches are more appropriate for the steam electric data. The following sections describe EPA’s consideration of each and reasons for rejection.



### 4.2.1. Tolerance Limits

Comments have advocated what is known as ‘confidence , ’ ‘UCL95,’ or ‘tolerance limits.’ A tolerance limit (or β

- content tolerance limit) is not a point estimator but rather an interval estimator having the property of being larger than the desired quantity with a stated degree of statistical confidence

. The 95 or 99 percent upper tolerance limit estimato r recommended byEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 22 comment s will always, by design, be larger than the point estimator used by EPA

. Interval tolerance limits are based on accepted statistical methods

. They are, however, designed for special applications in which it is critically important to obtain an upper bound on a quantity and in which the cost of substantially overestimating that quantity is small

. EPA has determined that this type of effluent limitation would be inappropriate and would allow discharges that would greatly exceed the ob served performance of the model technologies for the steam electric industry

. In fact, use of upper tolerance limit as the basis for effluent limitations has been proposed by commenters on other rulemakings

. These proposals have been rejected by EPA

. As
a matter of standard practice, EPA has determined that the 99th percentile of the distribution of daily measurements is an appropriate basis for daily maximum limitations

. This policy of using the 99th percentile as a basis has been adhered to in developing daily maximum limitations and standards in effluent gu idelines rulemakings for nearly 30 years

. In 1976, the Court in API , supra , 540 F.2d 1023, 1035

- 36 (10th Cir. 1976) described the daily variability factor correctly as the “‘99th percentile probability of occurrence divided by the mean.’ The result is ‘the multiplier by which the long

- term achievable values must be multiplied in order to derive the value not permitted to be exceeded.’” The definition and use of the daily variabili ty factor is the same in this rule

. The API Court then rejected the refineries’ argument: “Because EPA selected the 99th percentile, the refineries say that they must be afforded at least four days a year, 1% of 365, when they make excess discharges without fear of penalty

. The r easoning does not impress us.” EPA considers facilities that are properly operated and controlled are capable of complying with the promulgated limitations and standards. Thus, EPA has determined that tolerance limits proposed by the comment are inappropri ate

. A confidence or tolerance limit would provide an upward adjustment in the percentile value, and thus, EPA has determined that this type of effluent limitation would be inappropriate and would allow discharges that would greatly exceed the observed per formance of the model technologies

. Also see Pratt & Gibbons 7 

### for a discussion of the disadvantages of using and interpreting tolerance limits.



### 4.2.2. Other Censored Approaches (e.g., Survival Analysis )

Censored likelihood

- based approaches treat non

- detected observations as unobserved concentrations below detection limits but with the same concentration distribution as detects

. The statistical distributions are fit to the data by maximum likelihood instea d of the exact numerical calculations that are possible using the modified delta

- lognormal distribution

. Comments suggested that EPA use survival analysis, often citing t he Kaplan

- Meier (KM) approach , for use in developing the limitations. KM is a standa rd approach used for years by the medical s ciences to handle censored data that yields a nonparametric maximum likelihood estimate of the cumulative distribution function ( CDF) (e.g., Lawless, 2003) that is conditioned on the sample having concentration ab ove the smallest detection limit

. While most statistical software packages implement the KM algorithm for right

- censored survival data, it can be applied to left

- censored environmental data by using a “flipping” transformation that results in left

- censored samples becoming right

- censored

. It is e quivalent to fitting a (known membership) mixture of an empirical distribution for detects and a truncated empirical distribution for non

detects (truncated at their respective detection limits)

. It y ields an empiri cally

- generated

7 Pratt, John W. and Jean D. Gibbon s, Concepts of Nonparametric Theory , 1981.Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 23 cumulative distribution function (CDF)

. If all detects are above detection limits, this approach is equivalent to simple substitution where non

- detected results are replaced by their respective detection limits. It e stimates the CDF conditi oned on the sample being detected

. Thus, estimates are biased if the proportion of non

- detects below the smallest detection limit is significant.
For most of the data sets with censored values, the Kaplan

- Meier method does not provide an estimate of the s tandard deviation of the data (because the smallest observation is censored) unless a substitute value is used for the smallest non

- detect value, which in some cases means a substitute value for all non

- detects. Maximum likelihood methods for censored data can be used with a second step to adjust for non

- detects or baseline concentrations. As noted in the response to excerpt 127 in EPA

- HQ

- OW

- 2009

- 0819

- 4499

- A1, for the purposes of calculating the limitations, EPA is interested in the characteristics of the d istribution in which the non

- detects have been replaced by the detection limit. In this context, the Kaplan Maier standard deviation and maximum likelihood methods provide no advantage over the EPA calculation s using the modified delta

- lognormal distributi on

. When considering not just K M, but survival analyses techniques in more general way, EPA notes that the outputs from survival analyses require a subsequent adjustment to account for the effects of the baseline adjustment. Thus, the modified delta

- logno rmal equations provide a more direct method for calculating the limitations. In conclusion, EPA has no evidence and the comments have provided no evidence that survival analysis should be preferred to using the modified delta

lognormal distribution.

Comme nts asserted that EPA had not considered other approaches. In addition to survey analysis approaches, EPA also considered two other approaches to handling censored data: 1) the censored lognormal distribution; and 2) regression on order statistics (ROS).

C ensored likelihood

- based approaches can be modeled using a common parametric concentration distribution (lognormal) for both detects and non

- detects. Non

- detected values are treated as censored lognormal observations. Because the censoring point is a detection limit for the lab analysis , no detected measurements can fall below their respective detection limits

. Parameter estimates may be unstable if large gaps appear between detection limits and detected measurements. Its sensitivity to the lognormal distribution assumption implies that the censored lognormal app roach should be accompanied by a rigorous evaluation of diagnostics for verifying adherence of the concentration values to the lognormal distribution

. ROS techniques were investigated relative to their application to data sets with multiple detection lim its. While ROS can be implemented in a parametric setting , a more robust form of ROS is more frequently recommended for use and, therefore, was considered in this evaluation. Robust ROS involves the imputation of concentration values for non

- detects accor ding to the outcome of a linear regression fit of detected (transformed) concentration values to normal scores (i.e., percentiles of the normal distribution). Thus, unlike the modified delta

- lognormal approach, ROS assumes that:

 All reported concentrations (i.e., both detects and non

- detects) follow a common distribution.Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 24  Each non

- detect is treated as an unobserved left

- censored value from this distribution, known only to be less than the sample’s detection limit.
In Robust ROS, a non

- paramet ric, empirical estimate of the concentration distribution is estimated with data from both detects and non

- detects using an algorithm described in Helsel and Cohn (1998). The distribution is used to estimate the empirical percentile at each measured
conce ntrations (in detects).
EPA has not selected the censored lognormal distribution or Robust ROS because of the imputation for non

- detected values which would not be consistent with reporting requirements for compliance with limitations.


### 4.2.3. Use of Methods for Randomness
EPA disagrees with comment assertions such as “The pattern of sampling of effluent samples resembles two

- stage sampling with the primary sampling unit being month and the secondary sampling unit being day” (e.g., comment EPA

- HQ

- OW

- 2009

- 0819

- 4 655

- A18)

. Two stage sampling is a complex survey design, defined by Hansen et al (1953, page 239) as: ...a design in which: (a) Two

- stage sampling is used: (b) The primary units are selected by simple random sampling; (c) The second

- stage units are selected from each o f the selected primary units by simple random sampling; and (d) The second

- stage sampling fractions are uniform for all selected primary sampling units. The commenters did not provide any evidence that facilities had used statistical two

- stage survey designs t o cho o se months at random and then days at random within the months. Facilities typically collect samples when it is convenient for the operating staff, not by some predetermined randomly generated selection of months and days. Thus, t he selection of sampl e collection dates was not based on two

- stage sampling, and thus, the procedures for two

- stage sampling are wholly inappropriate for use in limit calculations. EPA does not agree that survey statistical procedures for two

- stage sampling should be used to e stimate the variance of the effluent data because the commenter’s approach would only be appropriate for data collected using a two

- stage survey design , which EPA did not use in collecting the effluent data , nor did comments or facilities provide any evide nce that facilities used a two

- stage sampling design to randomly select sampling days . Instead of using a survey design which would have reduced the amount of data , the Agency used the data it had in the record that met the data acceptance criteria.

. Comments also suggested that the sampling days could be assumed to have been selected by a simple random sample (SRS). Hansen et al (1953, page 12) defines a simple random sample as: ...a sample selected from a population in such a manner that each combinat ion of n elements has the same chance or probability of being selected as every other combination. Whenever the method of selecting the sample is such that each combination of n elements does not have the same chance of being selected, the method of select ion is not simple random sampling.Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 25 The comment er s did not provide any evidence that suggested that a SRS approach was used to statistically select days on which to collect effluent samples

. Thus, it would be inappropriate to apply SRS techniques in calculating the limitations. Comments may have confused EPA’s statistical design for collecting the data through its establishment surveys with its collection of effluent data. The survey data we re collected by a two

- stage sampling design, but the effluent data were not and consist of all valid data made available to EPA

. From the self

- monitoring and the EPA sampling data, EPA then used data that represented the model technologies. Because the eff luent data were not randomly selected, it would be inappropriate to apply survey statistical approaches to the data in calculating effluent limitations.



## 5. Compliance with Permit Limitations

Comments expressed concerns about complying with the limitations. The following two sections provide additional clarification about EPA’s policy in complying with limitations using non

detected measurements and more generally in complying with all limitations.



## 5.1 Non

- Detected Measurements
Permit authorities are responsibl e for providing any necessary guidance in using non

- detected measurements for compliance monitoring. Because EPA has developed limitations using two approaches to baseline value substitutions for the non

- detected values (see Essay Section 3.5 ) and otherwise used the largest possible value (i.e., the full value of the sample

- specific detection limit), EPA concludes that any reasonable substitution method can be used in reporting daily measurements below detection and to calculate averages for compliance monitoring.



## 5.2 Compliance Required Except During Upset or Bypass
In the final record (see DCN SE05733 ), EPA provides summaries of the engineering review of the effluent limits. In these analyses, the limitations based on percentiles are compared to the data used to develop the limitations to determine if EPA used appropriate distributional assumptions for the data used to develop the li mitations, in other words, whether the model EPA used provide s a reasonable “fit” to the actual effluent data.
The 95th and 99th percentiles do not relate to, or specify, the percentage of time a discharger operating the “best available” or “best availabl e demonstrated” level of technology will meet (or not meet) the limitations and standards as suggested by the comments. Rather, the use of these percentiles relate to the development of limitations. (The percentiles used as a basis for the limitations are calculated using the products of the long

- term averages and the variability factors.) If a facility is designed and operated to achieve the long

- term average on a consistent basis and the facility maintains adequate control of its processes and treatment s ystems, theEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 26 allowance for variability provided in the limitations is sufficient to meet the requirements of the rule. As stated elsewhere in this response, the use of the 99 th 

### and the 95 th 

### percent iles represents a need to draw a line at a definite point in the statistical distributions ( the 100 th 

### percent ile would not work because it would represent infinity) and a policy judgment about where the line that is drawn would ensure that operators work hard to ensure practices that represent the appropriate level of control. In essence, in developing the limitations established in this rule, EPA has taken into account the reasonable anticipated variability in discharges that may occur at a well

operated , maintained, and designed facility. This conclusion also appl ies to the arsenic limitation s for which all of the data that EPA used to set the limitation were non

- detected.
The issue of exceedances or excursions raised by the comments is not unique to the steam electric rule. (For example, several comments suggest that EPA include a provision that a facility is in compliance with permit limitations if its discharge does not exceed the specified limitations, except that the discharge may exceed the monthly average limitations one month out of 20 and the daily averag e limitations one day out of 100.) This issue has, in fact, been raised by other comments in other rules, most notably in EPA’s final Organic Chemicals, Plastics, and Synthetic Fibers (OCPSF) rulemaking. EPA’s general approach there, which is the same in t his rule for the limitations based on percentiles, was upheld in Chemical Manufacturers Association v. U.S. Environmental Protection Agency , 870 F.2d 177, 230 (5th Cir. 1989)

. The Court determined that:
EPA reasonably concluded that the data points exceeding the 99th and 95th percentiles represent either quality

- control problems or upsets because there can be no other explanation for these isolated and extremely high discharges. If these data points result from quality

- control problems, the exceedanc es they represent are within the control of the plant. If, however, the data points represent exceedances beyond the control of the industry, the upset defense is available. More recently, for EPA’s rule for the iron and steel industry, EPA’s selection of percentiles was upheld in American Coke and Coal Chemicals Institute v. Environmental Protection Agency, 452 F.3d 930, 945 (D.C. Cir. 2006) . The Court determined that:

The court will not second

- guess EPA’s expertise with regard to what the maximum efflue nt limits represent. See Nat’l Wildlife , 286 F.3d at 571

- 73. As EPA explains in the Final Development Document, the daily and monthly average effluent limitations are not promulgated with the expectation that a plant will operate with an eye toward barely achieving the limitations. Final Development Document at § 14.6.2. Should a plant do so, it could be expected to exceed these limits frequently because of the foreseeable variation in treatment effectiveness. Rather, the effluent limitations are promulgated with the expectation that plants will be operated with an eye towards achieving the equivalent of the LTA for the BAT

- 1 model technology. Id. However, even operated with the goal of achieving the BAT

- 1 LTA, a plant’s actual results will vary. E PA’s maximum daily limitations are designed to be forgiving enough to cover the operations of a well

- operated model facility 99% of the time, while its maximum monthly average limitations are designed to be forgiving enough to accommodate the operations of a w ell

- operated model facility 95% of the time. See id. EPA’s choice of percentile distribution represented by itsEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 27 maximum effluent limitation under the CWA represents an expert policy judgment that is not arbitrary or capricious.

EPA has decided that th e statistical methodology provides a reasonable framework for establishing limitations based on percentiles that are achievable by facilities with well operated and controlled processes and treatment systems. EPA also has decided that the arsenic limitatio ns described in Section 2.5 include allowance for reasonable anticipated variability. Thus, EPA considers daily values above the daily maximum limitations and monthly averages above the monthly average limitations will be due to either upset conditions or deficiencies in process and treatment system maintenance and operation. If the exceedance is caused by an upset condition, the facility would have an affirmative defense to an enforcement action if the requirements of 40 CFR 122.41(n) are met. If the excee dance is caused by a design or operational deficiency, then the facility’s performance does not represent the appropriate level of control (best available technology for existing sources; best available demonstrated technology for new sources). Such exceed ances can be controlled by diligent process and waste water treatment system practices (e.g. frequent inspection and repair of equipment, use of back

- up systems, close attention to treatment system operating parameters and effluent quality , communication an d coordination among production and wastewater treatment personnel ) . In the treatment system, wastewater equalization tanks also contribute to making influent raw wastewater flow and quality more uniform. EPA has determined that use of these techniques, as well as others, will result in discharge levels that do not exceed the limitations. EPA’s allowance for reasonable anticipated variability in its effluent limitations, coupled with the availability of the upset defense reasonably accommodates acceptable excursions. Any further excursion allowances would go beyond the reasonable accommodation of variability and would jeopardize the effective control of pollutant discharges on a consistent basis and/or bog down administrative and enforcement proceedings in detailed fact finding exercises, contrary to Congressional intent. See, e.g., Rep. No. 92

- 414, 92nd Congress, 2nd Sess. 64, reprinted in A Legislative History of the Water Pollution Control Act Amendments of 1972 at 1482; Legislative History of the Clean W ater Act of 1977 at 464

- 65.
The majority of circuit courts considering the excursion issue have concluded that EPA is not required by law to include any excursion provision in its regulations or permits and have set forth a variety of reasons why such a p rovision would in fact be inconsistent with statutory policy goals. A brief review of these cases is instructive.

In American Petroleum Institute v. EPA , supra , various petroleum refineries urged that “excursions” be allowed. 540 F.2d at 1036. They argued that because EPA used a 99th percentile approach to derive the effluent limitations, they must be allowed at least four days a year (one percent of 365 days) to make excess discharges without fear of penalty. The Tenth Circuit rejected this argument, stat ing that “the temptation to store pollutants for future discharge would be enticing.” Id . At 1036. The court also noted that the limits already allowed for considerable variability and that variations should lessen as technology improves.

In CPC Internati onal v. Train , supra , petitioners similarly argued that EPA’s 99th percentile analysis for the effluent guideline there in issue accounted for only 99 percent of the predictableEffluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 28 variability and that EPA should allow effluent levels to exceed the limits sev eral days a year. The Eighth Circuit rejected this argument, accepting EPA’s statement that plants could reduce their variability through the use of better treatment technology and control, attention to treatment plant maintenance and operations, and conce rn about in

- plant waste control. While this case dealt with new plants, the Eighth Circuit subsequently reaffirmed its conclusion with respect to existing facilities as well. Corn Refiners Association, Inc. v. Costle , supra . The Court specifically acknowle dged that “there is substantial force to petitioner’s argument that EPA’s regulations seemingly require petitioners to do the impossible, i.e., to prevent excursions which, by their very nature, can occur even in a properly operated facility meeting BPCTCA standards.” 594 F.2d at 1223. However, the court stated that against this potential hardship “we must weigh the effect which a decision requiring excursion provisions in the regulations or individual permits would have on the important policies underlying the Act.” Id

. First, the Court noted that a decision requiring an excursion provision might hamper EPA’s ability to compel plants to improve their antipollution performance. Denying excursion provisions justifiably compels the industry to develop the technological capab ility necessary to avoid excessive discharges. Accord , United Steel Corp . v. Train , supra , 556 F.2d at 842
one of the goals of the NPDES permit program is to insure that pollution control facilities are operated as efficiently and carefully as possible). Second, an excursion provision could prevent the “swift and direct” enforcement contemplated by Congress, subjecting enforcement proceedings to m urky determinations concerning the sequence of events in the plant, whether those events would have been avoida ble if other equipment had been installed, and whether the discharge was within the intent of the excursion provision. Consequently, what Congress planned as a simple proceeding suitable for summary judgements would become a form of inquest into the nature of system malfunctions. 594 F.2d at 1126 (quoting from Weyerhaeuser , supra , 590 F.2d at 1058).

In Weyerhaeuser Co . v. Costle , supra , all of the above grounds were relied upon to reject the petitioner’s arguments. The court then concluded:

We believe it appropriate to defer when EPA, in the interest of preserving an enforcement system based on straightforward numbers, establishes a general rule with better than 99 percent accuracy and leaves the rest to prosecutorial discretion. 590 F.2d at 1058.
A gener al provision excusing excursions that are “statistically foreseeable” would have precisely the disastrous effect on the policies underlying the Act that so concerned the Courts in Weyerhaueser and Corn Refiners . Contrary to the legislative intent, such an approach would introduce into every enforcement action the need to adjudicate the foreseeability of each and every permit violation. This suggestion is fraught with the potential to wreak havoc with the swift and effective enforcement contemplated by Congr ess. In support of their suggestion that EPA allow periodic exceedances (or excursions) to all limitations (one day out of 100 for daily averages and one month out of 20 for monthly averages)Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 29 in t his rule, commenters refer to provisions which allow period ic exceedances in the pH effluent limitations (40 CFR § 401.17) and in standards for particulate matter for fossil

- fuel

- fired boilers (40 CFR § 60.42(a)(2)). Particulate matter is an air, rather than water, regulation and therefore does not represent the b est available technology or best available demonstrated control technology as those terms are used in the Clean Water Act . The pH regulation (40 CFR § 401.17) similarly does not represent BAT or BADCT, and only applies for one conventional parameter, pH, w hen continuously monitored. 40 CFR p art 136, which lists the approved EPA analytical methods, states that pH may be analyzed both continuously and by grab sample

. 40 CFR § 401.17 does not apply in instances where pH is not continuously monitored. The
excur sions allowed in the pH and particulate matter regulati ons are not analogous to the steam electric effl uent limitations because this rule does not provide for continuous monitoring.
Only two cases have held that excursions must be accommodated in any fas hion, and both of these decisions are satisfied by EPA’s upset and bypass regulations. Marathon Oil v. EPA , supra ; FMC Corp . v. Train , supra

. 8 

### The Court in FMC did not in any way specify the parameters of such an excursion provision. The court in Marathon Oil required EPA to insert an “upset provision” into permits and stated that EPA may place the burden of proof on the permit holder. EPA’s promulgation of § 122.41(n) satisfies the court’s decision. See American Petroleum Institute v. EPA , 661 F.2d 340, 35 0

- 53 (5th Cir. 1981).
The upset provision promulgated by EPA is narrowly drawn to address only those temporary excursions which are demonstrably excusable. Equally important, the upset provision places on the permittee the affirmative duty to identify and justify the upset when it occurs. Any broader excursion provision is likely to simply allow dischargers to avoid treating excursions with the degree of prompt and serious attention required by the upset regulation.
It must be remembered that the purpose of permit limits is not to validate dischargers’ current practices but rather to require dischargers to act in a manner that assures that their discharges are controlled at the BAT or BADCT level of control . If exceedances are regarded, not as violations t o be regarded seriously by dischargers and enforcement authorities, but rather as “expected” and unworthy of serious attention, discharges will inevitably increase beyond the levels that can be achieved through vigilant control. It is for this reason that EPA Administrators to date have uniformly chosen to address allegedly unavoidable exceedances only through the exercise of enforcement discretion, and courts have uniformly upheld this administrative approach, provided that a mechanism was made available t o address genuine upsets. While EPA’s statistical methodology and the upset defense combine to accommodate dischargers’ variability to the extent required by law, as interpreted unanimously by the circuit courts; dischargers are protected even further by EPA’s traditional exercise of enforcement

8 

### The court in FMC cited as precedent EPA’s use of excursions in defining national ambient air standards (NAAQS), under the Clean Air Act, in 40 CFR Part 50. However, those standards are descriptions of air qualit y rather than control standards directed at particular facilities. EPA’s control standards for facilities emitting air pollutants, such as new source performance standards and national emission standards for hazardous air pollutants under sections 111 and 112 of the Clean Air Act, 42 U.S.C. §§ 7411 and 7412, do not contain excursion provisions.Effluent Limitations Guidelines and Standards for the Ste am Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 30 discretion. CPC International v. Train , supra , 540 F.2d at 1337; Weyerhaeuser Co . v. Costle , supra , 590 F.2d at 1058. Cf ., General Motors Corp . v. EPA , 738 F.2d 97, 101 (3rd Cir. 1984) (where only isolated examples of noncompliance are anticipated, a later particularized appeal to enforcement discretion is more appropriate than a general rulemaking to modify the underlying requirement). None of the comments argue that EPA has exercised its discretion unreasonably in the past or that EPA is likely to do so in the future.
EPA includes an upset provision in NPDES permits; this EPA has done in its NPDES regulations at 40 CFR 122.44(n) for exceptional situations where there is unintentional and temporarily noncompliance due to factors beyond the reasonable control of the permittee. FMC Corporation v. Train , 539 F.2d 973 (1976) upheld EPA’s use of variability factors (the Court, in FMC , said that the purpose of variability factors was to account for routine fluctuations; they are not intended to allow for poor performance), and is distinguishable with respect to excursions because in FMC , unlike this rule or OCPSF, it was established that “even a proper treatment facility will be in violation on a few occasions.” See FMC, 539 F.2d at 986. Here, as in OCPSF, a well operated plant will be capable of meeting the limitations and standards. The Fifth Circuit in CMA v. EPA , supra , 870 F.2d at 830 held that EPA “reasonably concluded that data points exceeding the 99th and 95th pe rcentiles represent either quality control problems or upsets because there can be no other explanation for these isolated and extremely high discharges.”
EPA has determined that the limitations allow for sufficient variability so that the limitations are achievable by proper operation of the technologies. EPA considers well

- operated facilities capable of complying with the limitations at all times, as stated above and in the record for the rule. Furthermore, in developing limitations, EPA provides an allo wance for variability in the effluent. If the plant maintains adequate control of its processes and treatment systems, the allowance for variability provided in the limitations should be sufficient.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 31 

## Appendix B. Comments Received on the Coal Combustion Residuals (CCR) Rule

Comments specifically pertaining to EPA’s CCR rule are outside the scope of this rulemaking. EPA addressed comments on the CCR rule in the context of that rulemaking (see Docket EPA

HQ

- RCRA

- 2009

- 0640

- 11970).
Comments pertaining to coordination of the ELG and CCR rule, including implementation timing, are addressed in responses to comment code 27e.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 32 104. Comments on ORCR/CCR Rulemaking

Commenter Name: Lena Moffitt Commenter Affiliation: Private Citizen Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 3037 C omment Excerpt Number: 4 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
I also hope that your agency will move forward with finalizing the long

- overdue regulations to limit coal ash waste from po wer plants, yet another major source of toxic pollution from this industry.

Commenter Name: Scott Osberg Commenter Affiliation: Private Citizen Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 3155

- A1 Comment Excerpt Number: 2 External Review Flag: No Ex ternal Review External Review Incorporated into Response: No
Comment Excerpt:
I urge the EPA to adopt the strong science

- based measures embodied in the proposed rule “Disposal of Coal Combustion Residuals from Electric Utilities” (Docket ID No. EPA

– HQ

– R CRA

– 2013

– 0209)

Commenter Name: F. Lehner Commenter Affiliation: Private Citizen Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 3632

- A1 Comment Excerpt Number: 1 External Review Flag: No External Review External Review Incorporated into Response: No

Com ment Excerpt:
I write urging the EPA to enact the option under "Subtitle C" of the Resource Conservation and Recovery Act (RCRA).
It is imperative that we protect the health of our citizens and waterways; regulate coal ash, subject it (and the companies generating it) to hazardous management standards.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 33 Commenter Name: Public Hearing Transcript Commenter Affiliation: Public Hearing Transcript Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 3920

- A1 Comment Excerpt Number: 29 External Review Flag: No Exte rnal Review External Review Incorporated into Response: No
Comment Excerpt:
While these coal plant water pollution standards will address pollution on the coal plant wastewater, there are many other types of water pollution we still need to address, including coal ash. We encourage you to move forward on those rules as well as soon as possible.

Commenter Name: Public Hearing Transcript Commenter Affiliation: Public Hearing Transcript Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 3920

- A1 Comment E xcerpt Number: 63 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
I would like to target my comments today to address risk assumptions posed in the text of the Proposed Rule in the reading of Section III, Background, G, and I'm sure you're familiar with that section. It talks about the information collection request conducted by EPA's Office of Water for the ELG rule that has the potential to affect the risk assessment for the CCR rule: "...r eliance on the data and analyses discussed...may have the potential to lower the CCR rule risk assessment results by as much as an order of magnitude...and could support regulation of CCR disposal under RCRA Subtitle D...."

I would like to take the time al lotted today to share an example from Missouri, actually from my town, that supports the conclusion that more independently collected site specific data is needed to draw conclusions about numbers of human receptors impacted and assumptions made about wate r flow in our nation's floodplains and near ash way sites because much like the communities that are impacted, all these sites are in our floodplains.

Commenter Name: Public Hearing Transcript Commenter Affiliation: Public Hearing Transcript Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 3920

- A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 34 Comment Excerpt Number: 65 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
The Labadie power plant was constructed in 1970 when I was 9 years old with one large 150 acre unlined ash pit dug into the floodplain sitting in our groundwater. The pond and the 79 acre pond constructed in 1993 together have been discharging untreated coal and plant wastewater into the Missouri River at volumes of 30 million g allons per day under NPDES permits. The four identified leaks, two of which date at least back to the permit issued in '92, have contributed at least 383 million gallons of untreated wastewater into the floodplain with no groundwater monitoring.

I would l ike to submit into the record, which unfortunately I left at the hotel, but I will do that digitally, a map that is of the floodplain and the domestic wells located within a 3 mile radius of the existing ponds in the proposed landfill that would accept inc reasingly toxic coal ash waste for the next 40 years. The well data was plotted by Washington University's Interdisciplinary Environmental Clinic for LEO, which is our organization, as part of legal action to attempt to stop the siting of the landfill in the floodway, not just floodplain, but the floodway of our floodplain.
I am also providing a landfill drawing included in the permit document submitted by the utility to the Missouri Department of Natural Resources, which chose the same private wells and t hree springs in the floodplain. LEO contracted the services of hydrogeologist Charles Norris to review the piezometer data from the Ameren's detailed site investigation, and he and others indicated that water flow was relatively unpredictable, with water moving seasonally either toward the river or toward drinking wells south of the site.
What was amazing was the short time frame in which water could change directions and likely move toxins long distances. The subsequent review of the proposed groundwater monitoring program at the proposed landfill did not reflect the hydrological complexities.
Unfortunately, I suspect the facts and decisions made in the Labadie case are not an exception but the norm. The facts suggest that we should look closer before pe rmitting said sites, and regulations absolutely need to be more protective.
In conclusion, LEO and CCC recommend that EPA not rely on limited industry supplied data on hydrogeology at these sites to weaken a strong subtitle C coal ash rule, coupled with a very strong ELG rule, to finally protect communities impacted by coal ash waste and wastewater risk.

Commenter Name: Public Hearing Transcript Commenter Affiliation: Public Hearing TranscriptEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 35 Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 3920

- A1 Comm ent Excerpt Number: 72 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
In the proposed ELG rules in the Federal Register, EPA stated that we have new data from a 2010 information collection reques t, and that that data could be used to determine the extent to which plumes of groundwater contamination leaching from these coal ash disposal sites might be intercepted by surface water bodies.
And the narrative goes on to suggest that a risk assessment i ncorporating that information might reduce the risk assessment by as much as an order of magnitude, and we are really concerned about EPA's reliance on this one sided data set that was provided by the utility industry. We think that too much reliance on t hat data could lead to adoption of rules that fail to protect human health and the environment.

Commenter Name: Public Hearing Transcript Commenter Affiliation: Public Hearing Transcript Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 3920

- A1 Comment E xcerpt Number: 74 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
Further, the industry documents generally assume that groundwater in these alluvial aquifers is moving in the same direction as th e adjacent river, when in fact if you look at a more detailed level, there is often documentation that groundwater can flow in the opposite direction, especially if there are significant water withdrawals in the vicinity that could change the groundwater f

low. And an example of that is the Gibson Power Plant where there is documentation of groundwater contamination in wells that are upriver from the plant.

Commenter Name: Public Hearing Transcript Commenter Affiliation: Public Hearing Transcript Docume nt Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 3920

- A1 Comment Excerpt Number: 78 External Review Flag: No External Review External Review Incorporated into Response: NoEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 36 Comment Excerpt:
Furthermore, finalizing the coal ash we proposed over 3 years ago is another essential EPA action that would progress our fight against toxic waste and its threat to health.

Commenter Name: Public Hearing Transcript Commenter Affiliation: Public Hearing Transcript Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 3920

- A1 Co mment Excerpt Number: 94 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
Lastly, as clinicians supporting public health policy, we urge EPA to address the threat to health from the coal fired powe r plants by finalizing the coal ash rule that the agency proposed over 3 years ago.

Commenter Name: Public Hearing Transcript Commenter Affiliation: Public Hearing Transcript Document Control Number: EPA

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- A1 Comment Excerpt Number: 112 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
Also, while the proposed standards address pollution and coal plant wastewater, there are other types of water pollution that still need to be addressed, including coal ash.

Commenter Name: Public Hearing Transcript Commenter Affiliation: Public Hearing Transcript Document Control Number: EPA

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- A1 Comment Excerpt Number: 132 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 37 Third, we urge EPA to fully protect Latino communities living near coal fired power plants by completing as soon as possible final rulemaking to safely dispose of toxic coal ash.

Commenter Name: Public Hearing Transcript Commenter Affiliation: Public Hearing Transcript Document Control Number: EPA

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- A1 Comment Excerpt Number: 182 External Review Flag: No External Review External Review Incorporated into Response: No

C omment Excerpt:
We also request that EPA finalize its Proposed Rule governing the disposal of toxic coal ash under the Resource Conservation and Recovery Act.

Commenter Name: Disha Banik Commenter Affiliation: Private Citizen Document Control Number: EPA

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- A10 Comment Excerpt Number: 3 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
Additionally, while the proposed standards address pollution in coal plant wastewater, ther e are many other types of water pollution that still need to be addressed, including coal ash.

Commenter Name: Donald R. Carlson Commenter Affiliation: Kansas Department of Health and Environment (KDHE) Document Control Number: EPA

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- A1 Comment Excerpt Number: 9 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
On behalf of the State of Kansas, I appreciate this opportunity to provide comments on EPA's proposed regulations r elated to the management and disposal of coal combustion residues. AsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 38 proposed, this regulation will significl' \ llt!Y impact the State of Kansas in numerous ways ·regardless of whether EPA decides to regulate disposal under Subtitle C or Subtitle D. Chang es in either proposed option are needed to avoid unnecessary adverse impacts to state regulatory programs, private businesses, and human health and the environment. In general, this proposal, including the Subtitle D approach, applies a regulatory scheme which does not include the appropriate level of flexibility to consider and allow what is necessary and appropriate in all geologic and climatic settings.
This comment letter provides an overview of our Kansas concerns with the proposed regulation and some general suggestions for EPA's consideration. We have also prepared and attached detailed comments which provide information specifically requested by EPA as well as recommended regulatory language to replace some provisions in the proposed rule.
Kansas is appreciative of the fact that EPA has requested input on the history of CCR management in the states and the extent of environmental harm caused by any past releases. We hope that the lack of incidents nat ionwide will influence EPA's fmal decision regarding the most appropriate regulatory approach.
Kansas has eight (8) coal

- burning power plants that manage fly ash, bottom ash, and various air pollution control residuals in landfills and surface impoundments

. Through more than 50 years of operating history, there has never been an incident where an environmental release has impacted surface water or groundwater. It is clear from this result that increased regulation will not yield any benefit. Human healt h and the environment has been adequately protected by the permitting laws and regulations that are presently in

- place in Kansas.
At present, Kansas has a full system of waste and water permits and a beneficial use approval process to ensure that CCRs are properly managed to prevent impacts to human health or the environment. Kansas recognizes that all states may not have similar regulatory programs that provide these safeguards; however, EPA should not promulgate new CCR regulations that would adversely i mpact proven state regulatory programs such as in Kansas. Any federal regulations should establish minimum requirements to be applied to facilities in states where no approvable state regulatory program exists, but they should allow states to demonstrate t hat their regulatory programs are adequately protective.
The State of Kansas strongly encourages EPA to maintain the Bevell Amendment and regulate the disposal of CCR under SubtitleD rather than as a "special" hazardous waste under Subtitle C. We are oppo sed to Subtitle C regulation for several reasons. We believe regulation under Subtitle C will create a stigma for these wastes which impacts beneficial use decisions. Of even greater significance to Kansas is our present state law that prohibits the land disposal of any RCRA hazardous waste. If CCR is regulated under the hazardous waste rules, even if EPA uses the term "special waste," it is our interpretation that our state law would prohibit land disposal. All currently permitted disposal activities wou ld become prohibited regardless of the standards which are applied to facility design. These wastes would need to be transported out of state for disposal. The costs and environmental impacts of this change in disposal practice would be
enormous.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 39 If the K ansas Legislature changed the existing law to allow disposal of "hazardous" CCR, other maj"or impacts would still occur. Every facility would need to submit new design and operating plans to KDHE and the RCRA permitting process would need to be implemented . KDHE does not have the staff to oversee this transition from the current solid waste permitting system to a new hazardous waste permitting system at eight separate power plants. The transition would also result in very high costs to power companies which will certainly be passed on to customers without any anticipated environmental benefits in Kansas.
While a Subtitle D regulatory approach is preferred by the State of Kansas, the proposed regulations under this approach also should be amended. The propos ed regulations do not provide states with flexibility to consider alternative liners, leachate management methods, or final covers considering variable local conditions with respect to soil types, depth to groundwater, distance from surface water, and annu al precipitation. The prescriptive one

- size fits

- all conservative approach is unnecessary in areas where local conditions provide an adequate and preferred degree of natural protection.
We believe it is important for EPA to thoroughly examine existing CC R disposal permitting programs in Kansas and other states before concluding that a broad overhaul is needed as opposed to proper recognition and approval of state programs. Some information about the Kansas regulatory program follows. To obtain a permit for CCR management in Kansas and probably in many other states, a power company must provide the Bureau of Waste Management with comprehensive engineering plans, site geological information, a groundwater monitoring plan, a demonstration of financial as surance for closure and post

closure care, an operating plan, and other required permit application documents. When the waste storage units are constructed, the company must provide third party construction quality assurance to document that the units have been constructed in accordance with approved engineering plans. The permitting process also includes a public participation process consisting of a comment period and a public hearing.
In addition to the high degree of regulatory oversight by the KDHE sol id waste permitting program, KDHE also routinely inspects these facilities. KDHE inspects all permitted solid waste storage or disposal areas at least one time per year. During inspections, all waste management practices are evaluated with respect to appl icable regulations and permit conditions and the integrity of the containment systems is visually examined. On an as needed basis, KDHE solid waste permit engineers also visit these facilities to assess compliance related to desigrt, construction, operatio ns, and monitoring.
Additional state regulatory agency inspections are also performed by the K nsas Division of Water Resources (DWR). Every three years, DWR inspects dam integrity at facilities that meet the following criteria: (1) the dam or berm must be greater than or equal to 25 feet in height or (2) the dam or berm must be at least 6 feet high and retain 50 acre

- feet of liquid.
Kansas would also like to emphasize that states are best equipped to make beneficial use determinations for CCR, whether the uses are in construction or agricultural applications. EPA's rule should include provisions to delegate this responsibility to states along with the authority to issue permits for disposal areas (both landfills and surface impoundments) under Subtitle D.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 40 In summary, Kansas believes the best approach to regulating CCR nationally is to develop regulations under SubtitleD, including a required permitting program, that can be administered by states. The permitting program should allow states flexibility to co nsider local conditions as they relate to the desigu of liners, leachate management, and final covers. The beneficial use aspects to this rule should also be delegated to approved state agencies.
The currently proposed rule will not yield any significant benefits to the citizens of Kansas who have never been impacted by CCR management under the existing regulatory system, but it could greatly impact our use of limited state resources and cost our businesses and citizens a great deal of money. The Kansas p rogram could serve as a model for federal regulation under Subtitle D with provisions for states to exercise appropriate flexibility to administer their program based upon their own unique geology and climate.

Commenter Name: Donald R. Carlson Commenter Affiliation: Kansas Department of Health and Environment (KDHE) Document Control Number: EPA

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- A1 Comment Excerpt Number: 10 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
( Note: Format used in this document

Bold font is for excerpts from the Federal Register of EPA's preamble and proposed rule. Normal text that follows the bold font is Kansas' response/comments/suggested language)

The comments included in this attache d address many details of the proposed regulation as well as information requested by EPA in the June 21, 2010 Federal Register proposal. Kansas' overall perspective on this regulation including a summary of key concerns is addressed in the cover letter w hich has also been submitted.
Preamble: Coal Combustion Residuals: Disposal

There are three key areas of analyses where EPA is seeking comment:
(1) The extent of existing damage cases (2) The extent of the risks posed by the mismanagement of CCRs
(3) T he adequacy of State programs to ensure proper management of CCRs (e.g., is groundwater monitoring required of CCR landfills and surface impoundments). p.35133
Kansas' response/commentsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 41 (1) History of CCR management in Kansas shows no evidence of environm ental damage: Since 1976 all industrial landfills in Kansas have been required to have solid waste permits. Designs submitted as part of permit applications must be prepared by licensed professional engineers and licensed geologists and reviewed by regula tory staff that is licensed as professional engineers and geologists. From 1976 until the present (2010), CCRs have been managed in permitted landfills, surface iinpoundments and piles. All disposal areas include groundwater quality monitoring systems. D uring the past 34 years. Kansas has had no known cases of environmental damages due to the mismanagement of CCRs as described and referenced in the Appendix to the Preamble Co. 35234

- 35239)

. (2) Extent of risk posed by the management of CCRs in Kansas:
Based on the successful record of CCRs management in the State of Kansas under existing solid waste statutory and regulatory authority (which includes engineering permitting, operations, construction quality assurance, groundwater quality monitoring, closu re and post closure care, and financial assurance requirements), there is no unacceptable risk posed under current management requirements for CCRs in Kansas.
(3) Kansas' regulatory program for managing CCR disposal to date:

Historical information shows that the State of Kansas has had no known cases of environmental damage. Successful management of CCRs in Kansas can be attributed to a combination of three major factors I) responsible utility management, which includes their engineering staff, teclmica l support personnel, quality design and construction work by engineers, geologists and contractors working for utility management, 2) professional engineering and professional hydrogeology staffs of the Kansas Department of Health and Environment (KDHE) i n the Division of Environment (air pollution control, solid waste and wastewater permitting and regulatory inspections) and 3) the Kansas Department of Agriculture's Division of Water Resources, (dam safety permitting and regulatory inspections). Kansas re gulatory process for management of CCR is comprehensive and provides adequate protection and assures financial responsibility for closure, post

- closure care and corrective action. The regulatory requirements have covered, and continue to require sound eng ineering design, construction quality assurance, operations, groundwater quality monitoring, engineered closure, post

- closure care, and financial assurance to cover closure, post

- closure care, and corrective action costs.

Preamble: Coal Combustion Residual s: Beneficial Uses
Preamble: Section 1: p. 35132
Historically, EPA bas proposed or imposed conditions on other types of hazardous wastes used in a manner constituting disposal (e:g., maximum application rates and risk

- based concentration limits for cement kiln dust used as a liming agent in agricultural applications (see 64 FR 45639; August 20, 1999); maximum allowable total concentrations for non

- nutritive and toxic metals in zinc fertilizers produced from recycled hazardous secondary materials (see 67 FR 48393; July 24, 2002). Should EPA should establish standards, such as maximum/minimum thresholds, orEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 42 rely on implementing states to impose CCR site

- specific limits based on front

- end characterization that ensures individual beneficial uses remain protectiv e?
Kansas supports the rights of states to impose CCR site

- specific limitations for beneficial use purposes. Preamble: Section 1: p.35137

- 35141

If materials characterization is required, what type of characterization is most appropriate? If the CCRs exceed the toxicity characteristic at pH levels different from the TCLP, should they be excluded from beneficial use? When are totals levels relevant?
The determination of what material characterization is most appropriate cannot be arbitrarily assigned. The cir cumstances of the intended beneficial use should dictate the proper characterization. For example, if a particular CCR was going to be used in conjunction with spent lime from municipal water treatment to stabilize soil for a confined animal feeding operat ion (CAFO), the pH of the resulting soil mixture would most likely not encourage the leaching of metals. In this case, TCLP or SPLP metals results would not be as relevant as the total metals concentration because the risk associated with such as use would come from the ingestion of soil by livestock and not the leaching of metals into surface or groundwater.
Preamble: Section 1: p. 35139
Whether EPA should fully develop a leaching assessment tool in combination with the Draft SW

- 8461eaching test methods d escribed in Section I. F. 2 and other tools (e.g., USEPA's Industrial Waste Management Evaluation Model (IWEM)) to aid prospective beneficial users in calculating potential release rates over a specified period of time for a range of management scenari os. Such a tool, as long as it is not mandated by federal regulation, would be a useful tool in evaluating the potential fate and transport of contaminants.

Preamble: Section IV: p. 35156

- 35157
If EPA determines that regulations are needed for the benefi cial use of CCRs, should EPA consider removing the Bevill exemption for such uses and regulate these uses under RCRA subtitle C, develop regulations under RCRA subtitleD or some other statutory authority, such as under the Toxic Substances Control Act?
Kansas recommends that CCRs should not be removed from the Bevill exemption. Kansas has an incident

- free history in the management of CCRs and does not believe that the failings of beneficial use programs in other states are indicative of the need to chan ge current practices. Changes to the status of CCRs destined for beneficial use by the EPA would create a shotgun regulatory approach, punishing states like Kansas, who have had no issues with the management of CCRs, for issues occurring in states east of the Mississippi River, who's geography,Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 43 predominant power plant designs, and climate are not comparable to the Great Plains region of the United States.
Preamble: Section IV: p. 35160
The growth and maturation of state beneficial use programs and the gro wing recognition that the beneficial use of CCRs is a critical component in strategies to reduce GHG emissions taking into account the potentially changing composition of CCRs as a result of improved air pollution controls and the new science on meta ls leaching.
The state of Kansas does not currently mandate an inventory of GHG emission reduction activities, nor does the state have plans to link the beneficial use of CCRs to GHG emissions. Additionally, Kansas is not pursuing the advance of the "new science" of metals leaching and will instead continue to use the TCLP and SPLP tests until the EPA, ASTM, or other governing science body properly develops and vets a new metals leaching protocol.
Preamble: Section IV: p. 35162

- 35163

Information and data relating to the agricultural use of FGD gypsum, including the submission of historical data, taking into account the impact of pH on leaching potential of metals, the variable and changing nature of CCRs, and variable site conditions.
Currently Kansas has two power plants that generate FGD gypsum, both located in the eastern third of the state. While there are two geographic regions of the state that could benefit from the addition ofFGD gypsum to agricultural fields (sodic soils in south central Kansa s and heavy clay glacial till soil in northeast Kansas), there have been no requests submitted to the state to use FGD gypsum as a soil amendment. In the event that the state were to receive a request for such a beneficial use, the evaluation of the FGD gy psum would not be different from the evaluation of any other waste material destined for land application. Factors such as metals concentration and loading, rate and volume of application, location, and climate would all be taken into account.

Additionall y, gypsum (and FGD gypsum) is highly soluble when applied to agricultural fields in
non

- arid regions, so the leachability of metals from FGD gypsum is not as important as the total metal concentration.
Preamble: Section IV: p. 35163

Information and data o n the extent to which states request and evaluate CCR characterization data prior to the beneficial use of unencapsulated CCRs.
Kansas has not had any requests for the unencapsulated beneficial use of CCRs and does not have a set protocol on the testin g of CCRs for such uses; however, the fluid nature of the beneficial use program in the state allows regulatory staff to evaluate each potential use scenario and adjust the testing requirements to fit that particular use scenario.
Preamble: Section IV: p. 35163Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 44 The appropriate means of characterizing beneficial uses that are both protective of human health and the environment and provide benefits. EPA is also requesting information and data demonstrating where the federal and state programs could impr ove on being environmentally protective and, where states have, or are developing, increasingly effective beneficial use programs. The volume of beneficial use requests, including those involving CCRs, in the state of Kansas, taken in conjunction with the variability of the requests, has created a situation where a "one size fits all" approach to beneficial use request evaluation is not feasible. The two predominate beneficial uses requested in Kansas are for agricultural and civil engineering purposes, t hough requests involving CCRs have been almost exclusively in the latter category. The evaluation of beneficial use requests begins the same for each of these two main categories. The entity requesting the beneficial use determination must prove that 1) t he material is not hazardous based on RCRA definitions and supporting analytical laboratory data (typically TCLP tests) and 2) that the intended beneficial use is not a veil for disposal. If the beneficial use request passes these two criteria, Kansas reg ulatory staff then looks at the specific intended beneficial use and develops additional laboratory testing criteria and use restrictions to ensure reasonable human and environmental protection.
Given the above approach for evaluating and approving beneficial use requests, the state of Kansas would be hesitant to create a more regimented protocol that would not allow each beneficial use request to be evaluated on its own set of unique circumstances. Additionally, CCR beneficial use requests are not required for "typical" applications, i.e. use of fly ash as a concrete admixture or use of bottom ash as sandblasting media. Forcing such approvals into a situation where staff must review each and every request, even for uses that have been considered st andard by industry groups such as ASTM or ASCE, would cause undue burden to state regulatory staff already taxed by declining state budgets and workforce reductions.

Preamble: Section IV: p.35163

- 35164
Whether certain uses of CCRs (e.g., uses involving un encapsulated uses of CCRs) warrant tighter control and why such tighter control is necessary.
Under the current system of beneficial use determination in Kansas, this point is moot. All requests to beneficially use any waste material, CCRs and otherwise, are evaluated with human health and environmental protection in mind first and foremost.
Preamble: Section IV: p.163

- 164
Whether it is necessary to define beneficial use better or develop detailed guidance on the beneficial use of CCRs to ensure protecti on of human health and the environment, including whether certain unencapsulated beneficial uses should be prohibited.
Unencapsulated use of CCRs, as long as they can be proven to be genuine beneficial uses and not guises for disposal, would be evaluated and regulated by the state of Kansas. Broadly restricting a category of potential beneficial use based on a few regionally grouped incidencesEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 45 of mismanagement goes against the precepts of innovation credited to waste reduction initiatives put in place by m any states. Such prohibitions of usage should be left to each state, where factors such as precipitation, soil chemistry, and CCR composition and generation can be evaluated by regulatory staff that have expertise in these local issues.

Preamble: Section IV: p.35163

- 35165

Whether the Agency should promulgate standards allowing uses on the land, on a site

- specific basis, based on site specific risk assessments, taking into consideration the composition of CCRs, their leaching potential under the range o f conditions under which the CCRs would be managed, and the context in which CCRs would be applied, such as location, volume, rate of application, and proximity to water. Currently, the beneficial use program in Kansas takes most of the listed factors i nto consideration when approving waste materials, including CCRs, for beneficial use/land application. Kansas places restrictions on the land application of any waste material, including setbacks from property lines, residences, surface waters, and water supply wells. Additionally, metals loading limits, rate and frequency of application, and soil conditioning and agronomic nutrient qualities are other factors that Kansas weighs when evaluating a beneficial use/land application request. Kansas does not vi ew additional promulgated federal standards as necessary in the evaluation of beneficial use/land application requests since the current state program takes into account a high level of protection of human and environmental health.

Preamble: Financial Assu rance: p. 35210
Kansas has had fmancial assurance requirements in effect for all solid waste landfills, including industrial landfills, since 1994. The financial assurance requirements address closure, post

closure care, and corrective action.

Commen ter Name: Donald R. Carlson Commenter Affiliation: Kansas Department of Health and Environment (KDHE) Document Control Number: EPA

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- A1 Comment Excerpt Number: 11 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
Subtitle C Option: p. 35254

- 35264
Kansas respectfully requests that EPA not regulate CCRs under hazardous waste regulatory authority (Subtitle C, Parts 261, 264, and 265, 268, and 270). Regulation under Subtitle C wouldEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 46 have major adverse impacts to Kansas. Kansas state law currently prohibits the issuance of permits for solid waste disposal facilities for Subtitle C wastes. If EPA chooses the Subtitle C approach, it will require all CCRs generated in Kansas to be shipped out of state at significant negative economic and environmental impacts. KDHE does not believe that the st rict environmental standards of Subtitle C are needed to provide adequate protection of human health and the environment as related to CCRs management. The long history of safe CCRs waste management in Kansas under state laws and regulations that are subs tantially equivalent to the federal Subtitle D standards demonstrates that these regulatory standards are adequate and effective in protecting human health and the environment..
Subtitle D Option: p. 35240

- 35253

Location Restrictions W. 35241)
Rule as prop osed

Sec. 257.60 Placement above the natural water table.
(a) New CCR landfills and new CCR surface impoundments and lateral expansions must be constructed with a base that is located a minimum of two feet above the upper limit of the natural water t able.
(b) For purposes of this section, natural water table means the natural level at which water stands in a shallow well open along its length and penetrating the surficial deposits just deeply enough to encounter standing water at the bottom. Th is level is uninfluenced by groundwater pumping or other engineered activities.
For the geological conditions encountered in Kansas, and the location restrictions currently in Kansas solid waste regulations for siting all solid waste landfills, including S ubtitle D municipal solid waste landfills, this proposed language is confusing and contradictory. Kansas requests this section to be modified to read as follows:

Sec. 25 7. 60 Placement above the uppermost aquifer.
New CCR landfills and new CCR surface imp oundments and lateral expansions must be constructed with a base that is located a minimum of five feet above the upper limit of the uppermost aquifer as defined in proposed regulation 257.40 and certified by a qualified groundwater scientist, professional geologist, or professional engineer.
Design Criteria (pp. 35243

- 35244)

Section 257.70
Rule as proposed

Sec. 257.70 Design criteria for new CCR landfills and lateral expansions.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 47 (a) New CCR landfills and lateral expansions of CCR landfills shall be constructed:
(1) With a composite liner, as defined in paragraph (a)(2) ofthis section and a leachate collection system that is designed and constructed to maintain less than a 30

- cm depth of leachate over the liner. The design of the composite liner and leachate collection system must be prepared by, or under the direction of, and certified by an independent registered, professional engineer.
(2) For purposes of this section, composite liner means a system consisting of two components; the uppe r component must consist of a minimum 30

- mil flexible membrane liner (FML), and the lower component must consist of at least a two

- foot layer of compacted soil with a hydraulic conductivity of no more than 1x10

- 7 

### cm/sec. FML components consisting of high density polyethylene (HDPE) shall be at least 60

- mil thick. The FML component must be installed in direct and uniform contact with the compacted soil component.
(3) For purpose of this section, hydraulic conductivity means the rate at which water c an move through a permeable medium. (i.e., the coefficient of permeability).
(b) [Reserved]
For the geological and climatic conditions encountered in Kansas this proposed language is limiting and would not allow designs which can be equally protective whil e having the advantage of being sustainable indefinitely into the future. Capillary barrier designs using in

situ materials and geosynthetic clay liners have been used successfully in Kansas landfills located in areas of low precipitation. Other liner de signs consisting of compacted clay have been adequately protective as demonstrated by years of groundwater monitoring in areas of eastern Kansas with higher precipitation and more shallow groundwater. A composite Subtitle D liner is clearly not needed to protect groundwater or surface water in all geologic and climatic scenarios. States should have the flexibility to review and approve of alternative liner designs that will provide adequate protection. Therefore, Kansas requests that paragraph (a)(1) of t his section be modified to allow alternate designs as follows:
1) With a composite liner, as defined in paragraph (a)(2) of this section and a leachate collection system that is designed and constructed to maintain less than a 30

- cm depth of leachate over the liner or an alternate design approved by the Director of an approved state that demonstrates that leachate will be contained or managed in a manner that is protective of ground water and suiface water. The design of the composite liner and leachate col lection system must be prepared by, or under the direction of, and certified by an independent registered, professional engineer. (modification in italics)

Section 257.71
Rule as proposed

Sec. 257.71 Design criteria for existing CCR surface impoundments

.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 48 (a) No later than [five years after effective date of final rule] existing CCR surface impoundments shall be constructed:
(1) With a composite liner, as defined in paragraph (a)(2) ofthis section and a leachate collection system between the upper an d lower components of the composite liner. The design shall be in accordance with a design prepared by, or under the direction of, and certified by an independent registered professional engineer.
(2) For purposes of this section, composite liner mea ns a system consisting of two components; the upper component must consist of a minimum 30

- mil flexible membrane line (FML), and the lower component must consist of at least two

- foot layer of compacted soil with a hydraulic conductivity of no more than 1x1 0
- 7 

### cm/sec. FML components consisting of high density polyethylene (HDPE) shall be at least 60

- mil thick. The FML component must be installed in direct and uniform contact with the compacted soil component.
(3) For purposes of this section, hydraulic condu ctivity means the rate at which water can move through a permeable medium (i.e., the coefficient of permeability).
In Kansas, when permitted designs call for composite liners, Kansas assures good composite action by requiring intimate and uniform contact between the FML component and the compacted soil component. Kansas supports the last sentence of subsection (a)(2) as written above. Kansas believes that the introduction of the leachate collection system between the two components of the composite liner w ould defeat the composite action . Kansas requests paragraph (a)(1) of this section be modified to read as follows.
(1) With a composite liner, as defined in paragraph (a)(2) of this section and a leachate collection system above the upper component of the composite liner. The design shall be in accordance with a design prepared by, or under the direction of, and certified by an independent registered professional engineer.

Section 257.72
Rule as proposed

Sec. 257.72 Design criteria for new CCR surface imp oundments and lateral expansions.
(a) New CCR surface impoundments and lateral expansions of CCR landfills or surface impoundments shall be constructed:
(1) With a composite liner, as defined in paragraph (a)(2) of this section and a leachate collection sy stem between the upper and lower components of the composite liner. The design of the composite liner and leachate collection system must be prepared by, or under the direction of, and certified by an independent registered, professional engineer.
(2) F or purposes of this section, composite liner means a system consisting of two components; the upper component must consist of a minimum 30

- mil flexible membrane liner (FML), and theEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 49 lower component must consist of at least a two

- foot layer of compacted so il with a hydraulic conductivity of no more than lxl0

- 7 em/sec. FML components consisting of high density polyethylene (HDPE) shall be at least 60

- mil thick. The FML component must be installed in direct and uniform contact with the compacted soil compone nt. In Kansas, when permitted designs call for composite liners, Kansas assures good composite action by requiring intimate and uniform contact between the FML component and the compacted soil component. Kansas supports the last sentence of subsection (a)( 2) as written above. Kansas believes that the introduction of the leachate collection system between the two components of the composite liner would defeat the composite action. Kansas requests paragraph (a)(1) of this section be modified to read as follow s. (1) With a composite liner, as defined in paragraph (a)(2) of this section and a leachate collection system above the upper component of the composite liner. The design shall be in accordance with a design prepared by, or under the direction of and cer tified by an independent registered professional engineer.
Closure Criteria (p. 35252)

Section 257.100
Proposed Rule
(c) At closure, the owner or operator of a surface impoundment must:
(1) Eliminate free liquids by removing liquid wastes or solidifying the remaining wastes and waste residues;
(2) Stabilize remaining wastes to a bearing capacity sufficient to support the final cover; and
(3) Cover the surface impoundment with a final cover designed and constructed to:
(i) Provide long

- term minimization o f the migration of liquids through the closed impoundment;
(ii) Function with minimum maintenance; and
(iii) Promote drainage and minimize erosion or abrasion of the cover;
(iv) Accommodate settling and subsidence so that the cover's integrity is maintaine d; and
(v) Have a final cover system that meets the requirements of subsection (d).
Paragraph (d) of this section prescribes one cover design option and paragraph (e) authorizes an alternative final cover design. Therefore Kansas requests that paragraph ( c)(v) be modified as follows:Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 50 (v) Have a final cover system that meets the requirements of subsection (d) or (e).
Proposed Rule
(d) For closure with CCRs in place, a final cover system must be installed at all CCR landfills and surface impoundments that is designed to minimize infiltration and erosion. The final cover system must be designed and constructed to:
(1) Have a permeability less than or equal to the permeability of any bottom liner system or natural subsoils present, or a permeability no greater than 1x10"5 em/sec, whichever is less, and
(2) Minimize infiltration through the closed CCR landfill or surface impoundment by the use of an infiltration layer that contains a minimum 18

- inches of earthen material, and
(3) Minimize erosion of the final c over by the use of an erosion layer that contains a minimum 6

- inches of earthen material that is capable of sustaining native plant growth, and
(4) Minimize the disruption of the final cover through a design that accommodates settling and subsidence.
(e) The owner or operator of the CCR landfill or surface impoundment may select an alternative final cover design, provided the alternative cover design is certified by an independent registered professional engineer and notification is provided to the state and the EPA Regional Administrator that the alternative cover design has been placed in the operating record and on the owner's or operator's publicly accessible internet site. The alternative final cover design must include:
(1) An infiltration layer t hat achieves an equivalent reduction in infiltration as the infiltration layer specified in paragraphs (d)(1) and (d)(2) of this section, and
(2) An erosion layer that provides equivalent protection from wind and water erosion as the erosion layer specifi ed in paragraph (d)(3) of this section.
For the geological conditions encountered in Kansas this proposed language could result in final covers needing to be composite caps incorporating a geomembrane. In several solid waste landfills in Kansas, post

- clos ure maintenance of such cover systems has been challenging. Such cover systems are not sustainable indefinitely into the future. On the other hand, appropriately designed alternative final covers such as capillary barrier covers and evapotranspiration co vers are being successfully used in Kansas and such covers are designed to be protective indefinitely into the future with minimal maintenance. EPA technical experts and trainers have been supportive of such covers being used for Subtitle D landfill and s imilar technical basis would apply to CCR landfills. Kansas requests that paragraphs (e)(1) and (e)(2) of section (e) be deleted and section (e) be modified to read as follows:
(e) The owner or operator of the CCR landfill or surface impoundment may selec t an alternative final cover design, provided the alternative cover design is certified by an independent registeredEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 51 professional engineer and notification is provided to the state and the EPA Regional Administrator that the alternative cover design has be en placed in the operating record and on the owners or operators publicly accessible internet site.
Subtitle D Regulations: Financial Assurance: p. 35239

- 35240
As an associated part to this rulemaking process, a separate regulatory subpart could/should be incorporated in Parts 257 and 258 to cover financial assurance requirements for closure, post

closure care, and corrective action.

Commenter Name: Shellie Chard

- McClary Commenter Affiliation: Oklahoma Department of Environmental Quality (DEQ) Document Control Number: EPA

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- A2 Comment Excerpt Number: 6 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

Treatment of Fly Ash intersects with residual waste handling requirements f or Coal Combustion Residuals (CCR) under the Resource Conservation and Recovery Act (RCRA). As stated by the Association of State and Tertitorial Solid Waste Management Officials (ASTSWMO), states strongly support the Subtitle D option for regulation of C CR in accordance with RCRA.

Commenter Name: Cari Boyce Commenter Affiliation: Duke Energy Document Control Number: EPA

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- A3 Comment Excerpt Number: 124 External Review Flag: No External Review External Review Incorporated into Resp onse: No
Comment Excerpt:

Subtitle D Prime Option must be Selected by EPA for the Final CCR Rule
Duke has reviewed both of the proposed rules (ELG and CCR Proposals) and has determined that the regulatory requirements will require the company to make sig nificant modifications to the way it must manage CCR in surface impoundments. EPA can best coordinate the requirements of the ELG proposal and the CCR proposal by finalizing the CCR proposal selecting the Subtitle D Prime non

- hazardous waste option and als o providing a reasonable timeline for implementation. This determination will provide Duke Energy and other electricEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 52 utilities time to coordinate compliance planning for the two rules and continue to offer reliable service to its consumers.

The Subtitle D Prime option is the only alternative in the CCR Proposal that will effectively align and integrate the final CCR and ELG rules because it represents the only option that allows for the realistic possibility that CCR surface impoundments, that are in compl iance with the applicable groundwater protection standards, will be able to continue operating beyond a five

year time period. Selecting the Subtitle D prime option would be consistent with the structure of the ELG Proposal, which contemplates the continu ed practice of managing legacy flyash, bottom ash, and flue gas control mercury wastewaters in impoundments that comply with existing BPT effluent limits.
In addition, the ELG Proposal contemplates that impoundments will remain in service as part of the wa stewater treatment system for other regulated effluents including the low volume wastewater and combustion residual leachate. Given the continued role of surface impoundments for wastewater treatment under the ELG Proposal, it is necessary that EPA elimina te the requirement to initiate closure of a surface impoundment 30 days after the final receipt of CCR. If CCR surface impoundments continue to operate in a manner fully protective of human health and the environment, there is no reason why these impoundme nts should not be allowed to continue to operate as part of the wastewater treatment facility or serve other operational purposes. To accomplish this goal, EPA should finalize the CCR rule with the Subtitle D option that ensures the effective alignment and coordination with the final ELG rule.

Commenter Name: Cari Boyce Commenter Affiliation: Duke Energy Document Control Number: EPA

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- A3 Comment Excerpt Number: 125 External Review Flag: No External Review External Review Incorporate d into Response: No
Comment Excerpt:

Location Restrictions in the Proposed Subtitle D Prime Option of the CCR Rule must be Modified
Maintaining consistency and coordination between the two rules requires the continued operation of qualified impoundments under the CCR rule. Therefore, EPA must modify the final CCR Rule Subtitle D prime option such that existing surface impoundments are not subject to the full array of location restrictions. Duke Energy contends that an existing surface impoundment should only be subject to the same location restrictions as those for existing landfills and should have the same opportunity to comply with these requirements through the demonstration of alternatives. In the preamble of the CCR proposal, EPA acknowledges that subjecting existing CCR surface impoundments to the full array of locations standards will cause many impoundments to close before the end of their useful lives.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 53 Commenter Name: Cari Boyce Commenter Affiliation: Duke Energy Document Control Number: EPA

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- A3 Comment Excerpt Number: 126 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

Eliminate the Mandatory Retrofit and Closure Requirements for Existing Surface Impoundments that are Meeting the Groundwater Protection Standards

 

### Liner Retrofit Requirement
EPA must eliminate the mandatory liner retrofit requirement in the Subtitle D option presented in the CCR Proposal. This provision requires that liners must be installed on ex isting surface impoundments within five years or the impoundment must begin closure. Retrofitting liners in surface impoundments is not economically feasible and would force the premature closure of the impoundments that manage CCR. Many of these impoundme nts are also part of the plant wastewater treatment system for legacy wastewaters allowed within the ELG rule, in addition to low volume wastewaters. Moreover, such impoundment water may be beneficially reused in certain plant processes. An accelerated clo sure of these impoundments would be counter to the continued wastewater treatment role that the ELG Proposal contemplates for surface impoundments.

 

### Closure Requirement
EPA must also modify the Subtitle D Prime option in the CCR Proposal by eliminating the requirement that an impoundment must commence closure within 30 days of the last receipt of CCR. Consistent with the points made above, this requirement would force the premature closure of impoundments that are otherwise serving critical treatment functio ns for specified low volume wastewaters and/or legacy CCR transport water under the ELG rule, or where impoundment water is beneficially reused for other operational processes. Assuming that the final ELG rule contains a no

- discharge requirement for fly a sh and/or bottom ash transport water, a facility would be required to cease the delivery of fly ash and/or bottom ash to its surface impoundments. If the impoundment no longer receives CCR, it would trigger the requirement for the impoundment to immediatel y begin closure even if the impoundment was continuing to operate in an environmentally sound manner.
The ELG Proposal expressly contemplates that certain low volume wastewaters, including legacy fly ash and bottom ash transport water can continue to be treated and discharged through the exiting impoundments, as long as compliance with existing BPT effluent limits are met. The CCR proposal must allow the surface impoundment to continue to serve as a critical component in the plant’s wastewater treatment s ystem for these other regulated wastewaters including, butEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 54 not limited to, combustion residual leachate, low volume wastewater, legacy fly ash/bottom ash transport water and storm water. It is also important that an ELG requirement that causes a particular impoundment to cease receiving CCR not automatically initiate the unrelated requirement in the CCR rule that the impoundment immediately begin closure.
Duke recommends EPA amend the regulatory text in proposed 40 C.F.R. 257.100(j) to eliminate the require ment to implement closure if the impoundment is still being used to managed wastewaters streams consistent with the ELG rule, or its wastewater is otherwise being beneficially re

- used as part of plant operational processes. The closure of the impound ment would not be triggered if the impoundment is no longer receiving any CCR wastewaters. Duke Energy contends that those surface impoundments still in operation would remain subject to continued groundwater monitoring and applicable corrective action req uirements, so that any potential environmental issues would be addressed during the continued operation of the surface impoundment. EPA should establish, in the ELG proposal, a similar requirement for closure to be implemented under the RCRA Subtitle D per mit once a surface impoundment is no longer receiving wastewaters.

Commenter Name: Nancy A. Evans Commenter Affiliation: PPL Services Corporation Document Control Number: EPA

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- A2 Comment Excerpt Number: 2 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
1.The ELGs should avoid duplication and overlap with the CCR Rule. We appreciate EPA’s acknowledgement of the potential overlap between the new ELGs and the proposed Coal Com bustion Residuals (CCR) Rule, both of which will regulate management of CCRs in surface impoundments. In adopting final ELGs, we urge EPA to avoid duplication, overlap, and conflicting requirements between these two environmental programs. Specifically,
s tructural integrity requirements for surface impoundments are best addressed as part of the pending CCR Rule. The proposed Best Management Practices (BMPs) for surface impoundment structural integrity should be omitted from the final ELGs as unnecessary a nd duplicative. We also urge EPA to prevent the premature closure of CCR surface impoundments and to enable such impoundments to continue to manage and receive specified wastewaters as contemplated under the ELG Proposal by:

1. selecting the Subtitle D Prime option in the final CCR rule to enable CCR impoundments, which meet applicable groundwater monitoring and corrective action requirements, to remain operational and; 2. modifying the proposed Subtitle D Prime rule to ensure application of only specified locat ion restrictions to existing CCR surface impoundments; andEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 55 3. Revising the proposed Subtitle D rule to eliminate the requirement that CCR units automatically commence closure upon the cessation of the receipt of CCRs.
Furthermore, we recommend that EPA develo p a mechanism to allow for State implementation of the Subtitle D rule

– as opposed to a self

- implementing regime

– in circumstances where a State is able to demonstrate to EPA that its CCR regulations are no less stringent than the final Subtitle D contro ls.

Commenter Name: Chris M. Hobson Commenter Affiliation: Southern Company Document Control Number: EPA

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- A1 Comment Excerpt Number: 117 External Review Flag: No External Review External Review Incorporated into Response: No

Comme nt Excerpt:
The Rule Needs to Allow for the Continued Treatment of “Legacy Wastewater” EPA’s ELG proposal recognizes that certain “legacy” CCR transport waters, such as fly ash, bottom ash, and flue gas mercury control legacy wastewater, will continue t o be managed in impoundments, subject to present BPT limits. See 78 Fed. Reg. at 34,461

- 63. As EPA recognizes, impoundments may be necessary both to treat “legacy” wastewater already in the impoundments and to treat other wastestreams (like combustion resi dual leachate or low volume waste) that do not require dry handling.
EPA should be careful, then, to allow ash ponds to remain in use as needed. This requires crafting the CCR rule so as not to require operators to commence closing ponds within 30 days of last receiving CCRs (75 Fed. Reg. 35,127, 35,252 col. 3 (June 21, 2010)) and not to require dredging and lining them within five years. Promulgating the “Subtitle D Prime” option in the CCR rulemaking is necessary to accomplish this.

Commenter Name: Chr is M. Hobson Commenter Affiliation: Southern Company Document Control Number: EPA

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- A1 Comment Excerpt Number: 120 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
Support for the Non

- Hazardous CCR Regulatory ProgramEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 56 1. The Revised Risk Assessment Using ELG ICR Data Will Support a D Prime Option or Will Support Regulation of CCR Disposal Under RCRA Subtitle D
In the proposed CCR Rule, EPA relied heavily on its Draft Human and E cological Risk Assessment of Coal Combustion Wastes 51 

### to support its Subtitle C option. 52 

### As EPA explains in the ELG proposal: ...EPA did not have definitive data about the location, size, or age of the waste management units, nor on the type or composition of the wastes contained in surface impoundments.

Id. at 34,442 col. 1. Consequently, EPA used data thought to represent the industry, when, in fact, the outdated data EPA used was lacking in the assumptions and accuracy to properly represent the current universe of CCR management units across the industry. Now that EPA has acquired data across the industry through the 2010 “ICR” on the location, size, age and contents of surface impoundments containing CCRs, the “data could be used in EPA’s risk assessmen t for any CCR Rule in several ways that could significantly affect the results of that assessment. 53


### Southern agrees that EPA should update the CCR risk assessment using the new data. When EPA uses these new data in a manner that promotes sound science, Southern agrees with EPA that the updated results have the “potential to lower the CCR Rule risk assessment results by as much as an order of magnitude.” 54 

### Southern urges EPA to update the CCR risk assessment with data from the ELG ICR, harmonize its con clusions with the final ELG requirements, and in turn “provide strong support for a conclusion that regulation of CCR disposal under RCRA Subtitle D would be adequate.” 55


### 2. Structural Stability of Impoundments Should be Dealt with in the CCR Rule

EPA is considering requiring best management practices (BMPs) for surface impoundments that receive CCRs. The asserted legal authority would be § 306 for new sources and § 304(e) for existing sources. EPA also cites § 402(a)(2) and 40 C.F.R. §§ 122.44(k) and 122. 41(e). EPA says BMPs are “critical” to preventing catastrophic releases like those at Martins Creek, Pennsylvania, and Kingston, Tennessee.
Clean Water Act § 304(e) provides that EPA may publish BMP regulations for any specific toxic or hazardous pollutant to control runoff, spillage or leaks, sludge or waste disposal, and drainage from raw material storage if they may contribute significant amounts of such pollutants to navigable waters.
The proposed BMPs would require inspections every seven days, plans f or designing, constructing, and maintaining existing impoundments, plans for closure, periodic inspections, and annual certification that the construction, operation, and maintenance follows the approved plan. 78 Fed. Reg. at 34,466

- 67. When stability and safety issues are identified, corrective action would be required. Id. at 34,467 col. 1.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 57 51 

### US EPA, August 6, 2007.

52 

### 75 Fed. Reg. at 35,167 (Proposed Rule) referencing 40 C.F.R. 261.11(a)(3).

53 

### Id.

54 

### Id. col. 2.

55 

### Id.

Commenter Name: Paul Nazaryk Commenter Affiliation: BHP Navajo Coal Company (BNCC) and San Juan Coal Company (SJCC) Document Control Number: EPA

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- A1 Comment Excerpt Number: 4 External Review Flag: No External Review External Review Incorporated into Response: N o Comment Excerpt:
The regulation of CCR material as hazardous waste under RCRA Subtitle C is clearly not warranted given the actual risk posed by the material. This label would also unnecessarily "stigmatize" the recycling and the legitimate and enviro nmentally beneficial use of this material in mined land reclamation.

Commenter Name: Jacob G. Smeltz Commenter Affiliation: Electric Power Generation Association (EPGA) Document Control Number: EPA

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- A1 Comment Excerpt Number: 6 Ex ternal Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
With this in mind, EPGA believes the following issues must be addressed in the final rule:

o 

### Selection of the Subtitle D Prime option in the final CCR ru le to enable CCR impoundments, that meet applicable groundwater monitoring and corrective action requirements, to remain operational and to continue to manage and receive specified wastewaters as contemplated under the Proposal;

o 

### Modification of the propose d Subtitle D Prime Rule to ensure application of only specified location restrictions to existing CCR surface impoundments to prevent theEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 58 premature closure of such impoundments and to enable the impoundments to remain operational and to continue to manage and receive specified wastewaters as contemplated under the Proposal;

o 

### Modification of the proposed Subtitle D rule to eliminate the requirement that CCR units automatically commence closure upon the cessation of the receipt of CCR in order to prevent the p remature closure of such units under the final CCR rule;

o 

### Ensuring that any CCR rule implementation and corresponding compliance obligations for surface impoundment modifications and/or closure not be triggered until a reasonable period of time after the ap plicable ELG requirements are clearly established for a particular facility in its revised NDPES permit;

o 

### Developing a mechanism to allow for State implementation of the Subtitle D rule

– as opposed to a self

- implementing regime

– in circumstances where a S tate is able to demonstrate to EPA that its CCR regulations are no less stringent than the final Subtitle D controls. This is specifically a concern in Pennsylvania where PA Department of Environmental Protection has well established Residual Waste Regulat ions covering the management and disposal of CCRs since 1992. Without State implementation of a Federal CCR rule, plants in Pennsylvania would be faced with two different regulatory requirements for CCRs;

Commenter Name: Jessica Wicha Commenter Affiliation: Gypsum Association Document Control Number: EPA

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- A1 Comment Excerpt Number: 1 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
The Gypsum Association previously c ommented on the Proposed CCR Rule, advocating for the continued regulation of CCRs under Subtitle D of the Resource Conservation and Recovery Act ("RCRA"), 42 U.S.C. §§ 6901 et seq. , coupled with an explicit regulatory exemption for flue gas desulfurizatio n ("FGD") gypsum to avoid the irreparable adverse impacts to the FGD gypsum industry that are expected from CCR regulation.

Commenter Name: Jessica Wicha Commenter Affiliation: Gypsum Association Document Control Number: EPA

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- A1 Co mment Excerpt Number: 4 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 59 IV. THE GYPSUM ASSOCIATION SUPPORTS EPA'S INTENTION TO CONTINUE TO REGULATE CCRs UNDER SUBTITLE D
While the Proposed ELG Rule focuses primarily on the eight regulatory options for regulating wastewater from electric utilities, it also includes an important discussion on a related rulemaking regarding CCRs. As discussed above, EPA is properly reviewing the Proposed ELG Rule and P roposed CCR Rule together to understand what impact the two rulemakings will have on human health and the environment, as well as the regulated community. As part of that coordinated review, EPA has suggested that the new regulatory requirements laid out in the Proposed ELG Rule may allow CCRs to continue to be regulated under Subtitle D of RCRA. 78 Fed. Reg. at 34442. In particular, it is EPA's view that the new data that has been generated in connection with drafting the Proposed ELG Rule could lower th e Proposed CCR Rule risk assessment and further provide support for Subtitle D regulation. Id

. The Gypsum Association maintains that Subtitle D regulation is appropriate irrespective of the outcome of the Proposed ELG Rule or corresponding new data. Indee d, the Gypsum Association advocated for such an outcome in its November 2010 comments on the Proposed CCR Rule. In those comments, the Gypsum Association provided a comprehensive overview of external and internal environmental, health and safety studies t hat have repeatedly affirmed the safety of FGD gypsum and FGD wallboard. In connection with its review of and comments on the Proposed CCR Rule, the Gypsum Association retained ARCADIS, an environmental consulting firm, to evaluate data concerning FGD gyp sum and determine whether FGD gypsum and FGD gypsum wallboard are safe and environmentally responsible. All publicly available data regarding FGD gypsum were reviewed, as was the Proposed CCR Rule and its underlying data. Based on that review, ARCADIS fo und that FGD gypsum simply is not RCRA hazardous. Moreover, ARCADIS concluded that none of the analyses relied upon by EPA presented any scientifically defensible information suggesting that FGD gypsum poses an environmental or human health
concern. Inste ad, all available data confirm the safety of the product. Therefore, regulation of FGD gypsum under Subtitle D remains the appropriate approach regardless of which regulatory option is selected for the Proposed ELG Rule or consideration of the new utility data. Further, the data strongly support the explicit regulatory exemption for FGD gypsum that the Gypsum Association has proposed.
In the absence of any real risk to human health or the environment, regulation of all CCRs as
non

- hazardous waste under Su btitle D of RCRA remains the appropriate approach. However, as discussed in detail in the Gypsum Association's comments on the Proposed CCR Rule, even if EPA were to maintain the Subtitle D approach, there remains uncertainty about regulation of FGD gypsum . To avoid ambiguity and confusion and consistent with EPA's stated intent not to regulate beneficially

- reused CCRs such as FGD gypsum, the Gypsum Association is reiterating its request that FGD gypsum be specifically exempt from regulation under 40 C.F.R. § 261.4(a). Specifically, the Gypsum Association proposes that EPA adopt the following language for a specific exemption: "The grade of FGD gypsum used in the manufacture of gypsum panels."Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 60 Commenter Name: Jessica Wicha Commenter Affiliation: Gypsum Association Document Control Number: EPA

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- A1 Comment Excerpt Number: 8 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
The Gypsum Association appreciates the opportunity to pr ovide comments on EPA's Proposed ELG Rule. The Agency is appropriately conducting this rulemaking in tandem with the Proposed CCR Rule. This concurrent review allows for the correct characterization of CCRs as
non

- hazardous waste that should continue to b e managed under Subtitle D of RCRA. However, since FGD gypsum is a manufactured product and not a waste, the Gypsum Association reiterates its request for an explicit regulatory exemption excluding the material from the scope of any final CCR Rule.

Comme nter Name: Lisa Carty Commenter Affiliation: Xcel Energy Document Control Number: EPA

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Comment Excerpt:
If regul ated under the ELG, the only appropriate way to regulate CCR under the CCR rule is under the Subtitle D Prime Approach.
Since the proposed ELGs do not contemplate any of the waste streams as generating a hazardous waste as defined under RCRA, the only opti on suitable for CCR regulation are either the Subtitle D or Subtitle D Prime options listed in the proposed CCR rules published by EPA. However, the Subtitle D option is not tenable given that waste water impoundments sometimes serve multiple purposes. The refore, it is imperative that the CCR rule not compel the premature closure of impoundments meeting applicable groundwater monitoring or corrective action requirements. Only the Subtitle D Prime option offers this possibility. Xcel Energy strongly supports the Subtitle D Prime option and urges EPA to select the Subtitle D Prime option for the CCR rulemaking process.

Commenter Name: John C. Pozzo Commenter Affiliation: Ameren Energy Resources Company Document Control Number: EPA

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- 61 Comment Excerpt Number: 13 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
Critical for EPA is to effectively align and integrate the final CCR rule with the final ELG rule is the selection of th e Subtitle D Prime option in the final CCR rule. This is because of the options presented within the proposed CCR rule, only the Subtitle D Prime option provides for the possibility of surface impoundments to remain in operation. A CCR rule that results In the mandatory and premature closure of impoundments that are otherwise operating in a protective manner would be inconsistent with the contemplated future role of Impoundments in the ELG rule.
In addition, the final Subtitle D Prime rule should be changed so that existing surface impoundments are not subject to the full array of location restrictions, but rather are subject to the same location restrictions as those for existing landfills

- i.e., the floodplain and unstable area location restrictions. {Feder al Register, June 21, 2010, Page 35198). In the preamble to the CCR Proposal, EPA acknowledges that subjecting existing CCR surface impoundment to the full array of locations standards including (In addition to the two above) wetlands, fault areas and seis mic impacts areas, could cause surface impoundments to close. Id. at 35199. The accelerated closures of these impoundments would be at odds with the continued role that the ELG Proposal contemplates for impoundments under that rule.
Another important modif ication to the CCR Proposal necessary to ensure coordination between the final CCR and ELG rules is the elimination of the requirement to be codified at 40 C.F.R. § 257.100(j))in the CCR Proposal compelling an impoundment to commence closure within 30 days of thelast receipt of CCR. (FederalRegister, June 21, 201O,Page 35252). This proposal appears to be based on the assumption that CCR units that permanently cease to receive CCR will stop functioning as a management or disposal unit. However, this requirem ent would force the premature closure of impoundments that are otherwise serving critical treatment functions for specified wastewaters under the legacy provisions of the ELG rule.

Commenter Name: Cathy S. Woollums Commenter Affiliation: MidAmerican Energy Holdings Company Document Control Number: EPA

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- A1 Comment Excerpt Number: 36 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
As part of EPA's effort to assess the manag ement of CCR, the agency inspected 516 surface impoundment units at 209 facilities. 28 

### The structural integrity assessments of those inspectionsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 62 generally confirm that EPA‟s concerns about CCR impoundment failures are overstated in the CCR risk assessment. EPA states that only those ranking “unsatisfactory” pose an immediate safety threats, 29 

### and yet not a single surface impoundment received a ranking of “unsatisfactory.” 30 

### Less than one third of the impoundments inspected received a ranking of “poor.” Some units received a “fair” or “poor” rating solely due to a lack of detailed design or
c onstruction data, where they may otherwise be structurally sound. EPA's CCR rule risk assessment overestimates the actual threat surface impoundments pose to human health and the environment.
During the inspection process, EPA encouraged facilities t o respond to the inspection reports and prepare action plans. Nearly all assessed CCR surface impoundments have completed their action plans to implement recommendations made by the dam integrity contractors to improve operation and maintenance of the surf ace impoundments. MidAmerican believes this information must be used to update the CCR rule risk assessment to provide an accurate representation of the current conditions of CCR surface impoundments. An updated risk assessment will appropriately show that surface impoundments pose less of a safety threat than was initially assumed.
When the completed action plan information is incorporated into the risk assessment model, the lower risk assessment results will not support the surface impoundment liner retro fits required in Subtitle D. It is clear that Subtitle D Prime is the only appropriate option for the regulation of CCR.

28 See http://www.epa.gov /wastes/nonhaz/industrial/special/fossil/surveys2/summarytable_071913.xls. The data provided in the summary table are used in these comments.
29 78 Fed. Reg. at 34442.
30 EPA Coal Combustion Residuals Impoundment Assessment Reports: http://www.epa.gov/osw/nonhaz/industrial/special/fossil/surveys2/index.htm. Last accessed September 4, 2013.

Commenter Name: Cathy S. Woollums Commenter Affiliation: MidAmerican Energ y Holdings Company Document Control Number: EPA

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- 63 Comment Excerpt:
Substantive requirements of a final CCR rule and the proposed ELG rule must be aligned to prevent the premature closure of CCR surface impoundments that meet applicable groundwater monitoring and/or corrective action requirements.
The ELG proposal allows for continued use of surface impoundments to mana ge wastewater and identifies the impoundments as the best practicable control technology currently available for several wastestreams, including legacy ash transport water, combustion residual leachate, and cooling tower blowdown. Under the proposed CCR ru le, however, a facility must begin closure of an impoundment within 30 days of the last receipt of CCR. 31 

### The requirement would force the closure of impoundments that are otherwise serving an important treatment function for wastewaters regulated under the ELG rule.
The date for initiating closure of a surface impoundment should not be based on its final receipt of CCR, but rather on when the impoundment ceases to serve a function under either the CCR rule or the ELG rule. EPA should amend the regulatory te xt of the CCR rule to eliminate this automatic closure requirement. The units will remain subject to structural integrity monitoring, groundwater monitoring, and corrective action requirements under the CCR rule. Any potential groundwater issues would be a ddressed during continued operation of a unit for the purposes of managing wastewater under the ELG rule. This approach would ensure that surface impoundments are operated in a manner that is protective of human health and the environment, while allowing t hem to continue serving a critical treatment function under the ELG rule.

31 See 75 Fed. Reg. at 35252, proposed to be codified at 40 CFR §257.100(j).

Commenter Name: Thomas H. Adams Commenter Affiliation: American Coal Ash Association (ACAA) Docume nt Control Number: EPA

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- A2 Comment Excerpt Number: 3 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
This regulatory oversight has resulted in stigmatizing the beneficial use of coal ash, and translated into stagnation, job loss and an absence of investment in our recycling industry.
At EPA’s public hearings on the CCR Proposed Rule, EPA heard testimony from companies engaged in the sale of products in competition with products utilizing coal ash, in support of a hazardous designation for coal ash, given the favorable competitive advantage they stood to gain as a result of the ensuing stigma. 3 

### EPA also heard testimony from hundreds of companies,Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 64 individuals, and organizations in vested in the use of coal ash as a recycled material. 4 

### Among them were coal ash marketers, suppliers, concrete and asphalt producers, as well as members of the agricultural and farming community. 5 

### All were unanimous in their position that the future of the ir businesses would be critically impacted by EPA’s actions regarding the regulation of CCR’s. Additionally, many shared negative effects already materializing in the form of decreased investment, and a decline in sales resulting from an expressed fear of the liability attached to using a product with a potential hazardous designation. 6 

### This stigma has displayed itself in other tangible forms, and has been fueled by companies selling competing non

‐ coal ash products, such as lightweight concrete block manufa cturers labeling their product as containing no hazardous bottom ash, as well as clay brick manufacturers attacking fly ash brick as hazardous. 7 

### Ash marketers have also reported an increased demand by utilities for indemnification protection against claims that may arise from utilization of coal ash. 8 

### Many companies within the CCR recycling community are small businesses. Numerous jobs have been lost. One publicly traded company in the CCR recycling niche has seen significant stock price erosion. 9



### In addition, the sale of CCR’s for the purpose of beneficial use contributes $6

- 11 billion annuall to the U.S. economy through the concrete industry, wallboard industry, asphalt products industry, and road and bridge constructio
n. 10 

### According to a study commissioned by the Utility Solid Waste Action Group, the concrete industry employs 240,100 manufacturing workers, 78,480 foundation, structure and building exterior workers, as well as a number of the approximately 10 2,350 nonresidential building construc tion workers. 11 

### The wallboard industry employs over 113,000 workers in manufacturing, drywall installation, and taping. 12 

### The asphalt products industry provides employment for approximately 191,000 in manufacturing, paving, roofing and equipment operation. In 2010, road and bridge construction accounted for 75,290 highway, street, and bridge construction jobs. 13 

### It is estimated that, allowing the coal ash recycling industry to remain in such a precarious position by not considering the impact of these propo sed regulations risks the loss of between 183,900 and 316,000 of these jobs. 14

3 

### Id, at 39.

4 

### See U.S. Environmental Protection Agency, Office of Resource Conservation and Recovery, Office of Solid Waste and Emergency Response, Public Hearing on EPA’s Pr oposed Rule On: Hazardous and Solid Waste Management System; Identification and Listing of Special Wastes; Disposal of Coal Combustion Residuals from Electric Utilities, Docket ID No. EPA

‐ HQ

‐ RCRA

‐ 2009

‐ 0640.

5 

### Testifying companies and groups included, among others, Headwaters Inc., Titan America, Separation Technologies Inc., Kansas City Power and Light Co., Everist Materials, Citizens for Recycling First, Sphere One, Essex Cement, Duke Energy, American Coal Council, North Carolina Chamber of Commerce, Benef icial Reuse Management, Lifetime Composites, and Fly Ash Direct.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 65 6 

### U.S. Environmental Protection Agency, Office of Resource Conservation and Recovery, Office of Solid Waste and Emergency Response, Public Hearing on EPA’s Proposed Rule On: Hazardous and Solid Waste Management System; Identification and Listing of Special Wastes; Disposal of Coal Combustion Residuals from Electric Utilities, Docket ID No. EPA

‐ HQ

‐ RCRA

‐ 2009

‐ 0640 at 210 (August 30, 2010).

7 

### Public Comment, American Coal Ash Association, Notice of Data Availability and Request for Comment on Hazardous and Solid Waste Management System: Identification and Listing of Special Wastes; Disposal of Coal Combustion Residuals from Electric Utilities, 76 Fed. Reg. 63,252, 39.

8 

### Id, at 39.

9 

### The New York Times, Business Day Markets, Headwaters Inc., NYSE Historical Chart, availab le at http://markets.on.nytimes.com/research/stocks/tools/analysis_tools.asp.

10 

### Veritas Economic Consulting, “An Economic Assessment of Net Employment Impacts from Regulating Coal Combustion Residuals,” report to USWAG, at 15, June 2011.

11 

### Id at 15.

12 

### Id at 15.

13 

### Id at 15.

14 

### Id.

Commenter Name: Thomas H. Adams Commenter Affiliation: American Coal Ash Association (ACAA) Document Control Number: EPA

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- A2 Comment Excerpt Number: 5 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
EPA’s purpose requires the agency to consider impacts of its rulemaking on the beneficial use of CCRs. EPA’s statement of purpose includes the following objectives:

 

### That “federal laws protecting human health and the environment are enforced fairly and effectively;Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 66  

### environmental protection is an integral consideration in U.S. policies concerning natural
reso urces, human health, economic growth, energy, transportation, agriculture, industry, and international trade, and these factors are similarly considered in establishing environmental policy;

 

### environmental protection contributes to making our communities an d ecosystems diverse, sustainable and economically productive; and

 

### the United States plays a leadership role in working with other nations to protect the global environment.”
Failure to fully consider the impact of EPA’s CCR disposal rulemaking on benefici al use would be counter to each of these objectives.

Commenter Name: Thomas H. Adams Commenter Affiliation: American Coal Ash Association (ACAA) Document Control Number: EPA

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- A2 Comment Excerpt Number: 6 External Review Flag: No E xternal Review External Review Incorporated into Response: No
Comment Excerpt:
The enabling statute under which this rulemaking is conducted presumes the importance and consideration of beneficial use of CCRs. EPA’s proposed CCR disposal regulations are under the authority of the Resource Conservation and Recovery Act. The EPA office conducting the rulemaking has “Conservation and Recovery” in its name. Nevertheless, the NODA question on beneficial use seeks input on whether conservation and recovery sho uld even be considered in its rulemaking.
In its findings establishing the Resource Conservation and Recovery Act, Congress stated: “The Congress finds with respect to materials, that

— (1) millions of tons of recoverable material which could be used are ne edlessly buried each year; (2) methods are available to separate usable materials from solid waste; and (3) the recovery and conservation of such materials can reduce the dependence of the United States on foreign resources and reduce the deficit in its ba lance of payments.” 17


### Furthermore, Congress stated specific objectives for encouraging materials recovery and reuse throughout Solid Waste Disposal Act. 18


### If EPA fails to consider impacts on materials recovery and beneficial use from its CCR disposal rulemaking, the agency will be in direct opposition to the letter and spirit of the Act from which it derives its rulemaking authority.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 67 17 

### Solid Waste Disposal Act, Section 1002 (c)

18 

### Solid Waste Disposal Act, Section 1003

Commenter Name: Dennis Leon ard Commenter Affiliation: DTE Energy Company Document Control Number: EPA

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- A2 Comment Excerpt Number: 12 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
*In, the August 2nd, 2013 CCR NODA under RCRA, EPA recently requested comment on whether it should add requirements to "overfills" which would greatly increase the costs and decrease the viability of overfills. EPA has coined the term overfills to describe the process whereby an existing fly ash pond is converted to a dry landfill, by placing a vertical expanded lift of dry fly ash on top of the previously ponded ash. EPA has requested input on how it should require final cover over "closed" ash ponds and whether it should req uire a double composite liner between the "closed" ash pond and the new overfill. Even though DTE's Monroe ash pond already has an existing liner beneath the existing ash fill, EPA's new RCRA regulation could conceivably require in addition the natural cla y liner beneath the existing bottom ash basin:,

 

### a final cover over the existing fill,

 

### a composite liner between the existing fill and vertical extension or overfill and

 

### a final, 2nd cover, on top of the overfill.

 

### Since the plastic in any composite liner co uld not be placed over the existing unconsolidated fill without extensive and expensive pre

- compaction, an additional expense would be incurred.
DTE commented on the enormous costs and inappropriateness of such a design and pointed out that it could well p reclude the overfilling of the existing on site facility and drive the company to a new off

- site greenfield landfill. DTE reiterated its 2010 RCRA comments that the existing natural clay liner beneath the existing ash pond should be a sufficient liner for both the ash pond and overfill, and the new cover of the overfill should be a sufficient cover for both the ash pond and overfill.

Commenter Name: Pamela Ritger Commenter Affiliation: Clean Wisconsin Document Control Number: EPA

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- A1 Comment Excerpt Number: 18Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 68 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
Moreover, to ensure that such dry wastes do not then filter into the environment from landfills, the EPA must also cla ssify coal ash as the hazardous waste that it is, under the Resource Conservation and Recovery Act (RCRA). Only by taking these steps can the EPA truly begin to protect public health, and the health of our wildlife and ecosystems, from the debilitating and often lethal impacts of coal combustion residuals. As these toxic pollutants do not degrade in the environment and accumulate in the bodies of living organisms, we will only see more people and animals negatively impacted. The only way to slow the number of living things impacted by these toxic pollutants is to prevent them from entering the environment in the first place, and the best mechanism to prevent this is the Resource Conservation and Recovery Act (RCRA).

Commenter Name: James R. Roewer Comment er Affiliation: Utility Solid Waste Activities Group (USWAG) Document Control Number: EPA

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- A1 Comment Excerpt Number: 1 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

As EPA correctly recognizes, the final ELG and CCR rules will regulate or affect the same unit and/or activity

— i.e. , the management of CCR in surface impoundments. Therefore, USWAG appreciates EPA’s request for comment on its views for how to harmonize these tw o regulations. As explained in Section II below, USWAG believes that harmonization of the two rules requires:

 

### Selection of the Subtitle D Prime option in the final CCR rule to enable CCR impoundments, that meet applicable groundwater monitoring and corrective action requirements, to remain operational and to continue to manage and receive specified wastewaters as contemplated under the ELG Proposal;

 

### Modification of the proposed Subtitle D Prime Rule to ensure application of only specified location re strictions to existing CCR surface impoundments to prevent the premature closure of such impoundments and to enable the impoundments to remain operational and to continue to manage and receive specified wastewaters as contemplated under the ELG Proposal;

 

### M odification of the proposed Subtitle D rule to eliminate the requirement that CCR units automatically commence closure upon the cessation of the receipt of CCR in order to prevent the premature closure of such units under the final CCR rule;Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 69 Commenter Na me: James R. Roewer Commenter Affiliation: Utility Solid Waste Activities Group (USWAG) Document Control Number: EPA

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- A1 Comment Excerpt Number: 3 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
Developing a mechanism to allow for State implementation of the Subtitle D rule

– as opposed to a self

- implementing regime

– in circumstances where a State is able to demonstrate to EPA that its CCR regulations are no less stringent than the final Subtitle D controls.

Commenter Name: James R. Roewer Commenter Affiliation: Utility Solid Waste Activities Group (USWAG) Document Control Number: EPA

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- A1 Comment Excerpt Number: 9 External Review Flag: No External R eview External Review Incorporated into Response: No
Comment Excerpt:

A. Coordination of Substantive Requirements
EPA’s evaluation of how to harmonize the substantive requirements of the CCR and ELG rules focuses on how to coordinate the requirements for surface impoundments because these units will be regulated under both rules. Id . at 34441. In particular, EPA is evaluating how facilities will modify their operations to comply with the ELG rule and then will factor those results into d etermining “whether separate RCRA requirements under the CCR rule are needed to ensure protection of human health and the environment.” Id

. For example, EPA explains that “[w]hile the ELG would not compel the use of a particular technology, EPA predict s that one possible consequence of the proposed ELG requirements is that some number of facilities will choose to convert their sluicing operations to dry ash

- handling systems, and will no longer send such wastes to surface impoundments.” Id

. Given the p ossibility that some facilities “would no longer need to operate surface impoundments, it is possible that this might affect the time frame (or other requirements) necessary for closure of such impoundments” under the final CCR rule. Id . at 34442.
Assuming that the final ELG rule results in some facilities ceasing the management of certain CCR transport waters in surface impoundments, there should be corresponding modifications in the substantive requirements for surface impoundments in the final CCR rule. Reduced use of impoundments for the management of CCR necessarily will reduce the risk of potential CCR groundwater contamination from these impoundments. This consequence must be considered for purposes of a final CCR rule.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 70 In addition, as discussed belo w and addressed in detail in USWAG’s comments recently filed in response to EPA’s Notice of Data Availability in the coal combustion residuals rulemaking (“CCR NODA”), it is expected that the modeled risks from CCR impoundments identified in EPA’s draft CC R risk assessment will be substantially reduced in the final CCR risk assessment based on the more comprehensive data on CCR management collected by the Agency in response to the ELG information collection request (“ICR”). Id . at 34442. Given that the E LG rule may result in a reduction in the future role of some impoundments managing CCR transport waters, coupled with what USWAG (and EPA) believes will be a significant reduction in the CCR risk assessment associated with such units, there are compelling reasons to significantly modify the requirements for CCR surface impoundments in the final CCR rule. Given the above, USWAG’s suggestions for EPA selecting the Subtitle D Prime option and modifying the requirements for surface impoundments in the final CCR rule are fully consistent with EPA’s goal of coordinating “any final RCRA requirements with the ELG requirements, to minimize the overall complexity of these two regulatory structures, and facilitate implementation of engineering, financial and permitting activities.” Id . at 34441.

1. Harmonization of the CCR and ELG Rules Requires Selection of the Subtitle D Prime Option in the Final CCR Rule
USWAG believes that EPA’s selection of the Subtitle D Prime option in the final CCR rule is critical for EPA to effe ctively align and integrate the final CCR with the final ELG rule. This is because only the Subtitle D Prime option provides for the realistic possibility of surface impoundments continuing to operate to manage CCR, provided that applicable groundwater
mon itoring and corrective action requirements are met. The Subtitle D Prime option is necessary to align the final CCR rule with the structure of the ELG Proposal because the ELG rulemaking contemplates a future role for impoundments for purposes of managing legacy CCR transport waters, as well as serving as part of the ELG treatment train for other specified wastewaters. Indeed, any CCR rule that results in the mandatory and premature closure of impoundments that are otherwise operating in a protective manne r would be inconsistent with the contemplated future role of impoundments in the ELG rule. Failure to align the rules in this manner will result in serious compliance concerns and create an unnecessarily complex regulatory structure, both of which are inc onsistent with the directions in RCRA Section 1006(b).
(a). The Technical Record Supports the Subtitle D Prime Option
Before elaborating on the above point, USWAG would like to emphasize that new data referenced in the ELG Proposal clearly demonstrat e that, strictly from a risk perspective, the Subtitle D Prime option is now the more technically justified option of the two Subtitle D choices presented in the CCR Proposal. Under the Subtitle D Prime option, existing surface impoundments can continue t o operate for the remainder of their useful lives, provided they continue to meet all applicable groundwater monitoring and any associated corrective action requirements. 75 Fed. Reg. at 35210. Under the Subtitle D Prime option, any groundwater contamina tion threats from an impoundment during its operating life and during post

- closure would be detected and appropriate corrective action would be taken. In all other respects, the Subtitle D Prime and the alternative Subtitle D option are identical.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 71 In cont rast, under the alternative Subtitle D option, all existing surface impoundments would have to be dredged of CCR and retrofitted with a composite liner within five years of the effective date of the regulations, or close. Id. at 35244 (proposed to be codif ied at 40 C.F.R. § 257.71(g)). As EPA is aware, however, the draft CCR risk assessment is the technical basis for the proposed requirement in the alternative Subtitle D option that all existing impoundments be retrofitted or closed within 5 years. See id . at 35202 (discussing Subtitle D design requirements and stating that the “quantitative groundwater risk assessment” clearly shows “the need for effective liners

— namely composite liners

— to very significantly reduce the probability of adverse risks” from C CR impoundments). As EPA readily acknowledges, though, the preliminary conclusions in the draft CCR risk assessment have been thrown into considerabledoubt due to the more comprehensive data on CCR management collected by the Agency in response to the ELG ICR in the ELG rulemaking. 78 Fed. Reg. at 34442. Indeed, EPA acknowledges that the incorporation of these new data into the CCR risk assessment model “have the potential to lower the CCR rule risk assessment results by as much as an order of magnitude. ” Id

. To this point and as noted above, USWAG filed comments in the recent CCR NODA regarding how the ELG ICR (and other) data should be used in modifying the final CCR risk assessment. 78 Fed. Reg. 46940 (Aug. 2, 2013). USWAG retained Gradient to condu ct a critical review of the new data to assess how their proper incorporation into EPA’s risk model would influence the final CCR risk assessment (the Gradient report, entitled “The Implications of US EPA’s Notice of Data Availability (September 3, 2013) o n the Human and Ecological Risk Assessment of Coal Combustion Wastes,” is an attachment to USWAG’s comments in the CCR NODA docket 2 

### and is attached to these comments as well). The Gradient report confirms that EPA was correct in suggesting that the new in formation referenced in the NODA substantially reduces the alleged risks reflected in the CCR risk assessment associated with the disposal of CCR in landfills and surface impoundments.
The Gradient report makes clear that a revised CCR risk assessment that properly incorporates the new data referenced in the NODA can no longer support EPA’s proposal to regulate CCR as Subtitle C hazardous waste or to impose a mandatory retrofit requirement for all unlined CCR surface impoundments under the Subtitle D option

. The Gradient report explains that the revised risk assessment, when adjusted to reflect the more comprehensive and realistic data regarding CCR management practices referenced in the NODA, results in a significantly lower risk from CCR management units which supports the Subtitle D Prime option and cannot be used to support the Subtitle C option or the mandatory retrofit option for all impoundments under the Subtitle D option. Given this new information, USWAG submits that the final CCR risk assessment and the corresponding CCR rulemaking record will provide compelling technical justification for EPA to select the Subtitle D Prime option in the final CCR rule.
(b). The Subtitle D Prime Option is Necessary to Align the CCR and ELG Rules

In addition t o the above, the Subtitle D Prime option is necessary to effectively align and integrate the final CCR and ELG rules because, as noted above, only the Subtitle D Prime option allows for the realistic possibility that most CCR surface impoundments will be a ble to continue operating beyond a five

- year time period. This strategy is consistent with the structure of theEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 72 ELG Proposal, which expressly contemplates that certain legacy CCR transport waters

— including, for example, fly ash, bottom ash and flue gas m ercury control legacy transport waters

— will continue to be managed in impoundments and remain subject to existing BPT effluent limits. See 78 Fed. Reg. at 34461, 34462, & 34464. Indeed, the technologies identified as the basis for the discharge requirem ents for the underlying wastewaters were not demonstrated for the corresponding legacy transport waters, so continued pond management of these waters is a critical component of the ELG Proposal. Id

. In addition, the ELG Proposal contemplates that impound ments

— even when no longer receiving certain CCR transport waters

— will remain in service as part of the ELG treatment train for other regulated effluents, including, for example, bottom ash transport water (at least in three of the four preferred options) a nd combustion residual leachate. Id . at 34458. The premature closure of these impoundment systems at power plants will present a serious compliance dilemma for management of regulated wastewaters under the ELG rule.

Given the continued role of wastewater impoundment management under the ELG Proposal, it is absolutely critical that the final CCR rule not compel the premature closure of CCR surface impoundments that are meeting applicable groundwater monitoring and/or corrective action requirements. Only t he Subtitle D Prime option offers this possibility under the CCR Proposal. Given that CCR impoundments can continue to operate in a manner fully protective of human health and the environment under this option, there is no reason for EPA not to pursue thi s choice and ensure the effective alignment and coordination between the two rules.
In contrast to the Subtitle D Prime option, EPA has made clear that one of the primary objectives of the mandatory retrofit or closure requirements under the alternative Su btitle D option is to compel the premature closure of CCR surface impoundments. See 75 Fed. Reg. at 35202 (in explaining the consequences of this requirement, the Agency stated that it “expects that many surface impoundments will choose to close rather th an install a liner . . . .”). Given that such premature closure is not necessary to meet RCRA’s objective of protecting human health and the environment (especially given the reduction in risk from such units that will be reflected in a revised CCR risk a ssessment) and the important treatment function these ponds are expected to serve in the final ELG rule, USWAG urges EPA to select the Subtitle D Prime option in the final CCR Rule.

2. Harmonization of the CCR and ELG Rules Requires Tailoring of the Locat ion Standards for Impoundments in the Final CCR Rule
Consistent with the principle that coordination between the CCR and ELG rules requires the continued operation of qualified impoundments under the CCR rule, it also is critical that EPA modify the final Subtitle D rule so that existing surface impoundments are not subject to the full array of location restrictions, but rather are subject to the same location restrictions as those for existing landfills

— i.e. , the floodplain and unstable area location restr ictions. 75 Fed. Reg. at 35198. In the preamble to the CCR Proposal, EPA readily acknowledges that subjecting existing CCR surface impoundment to the full array of locations standards including (in addition to the two above) wetlands, fault areas and sei smic impacts areas, will cause “many” surface impoundments to close. Id . at 35199. As is the case with the CCR Proposal’s mandatory retrofitEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 73 requirements, such accelerated closures of these impoundments would be directly at odds with the continued role t hat the ELG Proposal contemplates for impoundments under that rule.
Furthermore, as we addressed in our comments on the 2010 proposal, USWAG does not believe that EPA has conducted research or compiled record evidence suggesting that there is any need to r etroactively apply the additional location restrictions applicable to new units ( i.e. , wetlands, fault areas and seismic impact zones) to existing surface impoundments. Because these units have not been shown to have problems addressable by the imposition of the additional location restrictions for new units, these additional restrictions should not apply to existing impoundments. Rather, imposing these requirements on existing impoundments will serve only to limit the options contemplated in the ELG Prop osal for the management of legacy transport waters and other regulated wastestreams in these units.
To avoid this inconsistency and the lack of record evidence supporting these additional restrictions, USWAG urges EPA to amend the final Subtitle D rule by tailoring the application of the location restrictions for existing CCR impoundments to mirror those applicable to existing CCR landfills

— i.e. , floodplains and unstable areas. Importantly, application of the fully array of location standards to existing C CR surface impoundments are not necessary to ensure their structural stability. Rather, the combination of the CCR Proposal’s structural stability requirements for all existing surface impoundments, see 75 Fed. Reg. at 35243, 35245 (proposed to be codifie d at 40 C.F.R. §§ 257.71 & 257.83), together with the application of the unstable area location restriction to these impoundments will ensure that any potential structural deficiencies in a CCR impoundment are detected and corrected.
The CCR Proposal’s str uctural stability requirements are modeled on the long

- standing Mine Safety and Health Administration (“MSHA”) dam safety requirements and require, among other things, an annual certification by an independent registered professional engineer to ensure tha t the design, operation, and maintenance of the impoundment is in accordance with current, prudent engineering practices for the maximum volume of CCR which can be impounded in the unit. Id . at 35245. This is in addition to the proposed requirement that impoundments be inspected on a regular basis to ensure that any potentially hazardous condition or structural weakness is quickly identified and addressed. Id

. Indeed, EPA observed that the proposed structural stability requirements in the Subtitle D pro posal “are necessary to ensure that major releases [from CCR impoundments] do not occur that would cause adverse effects on health or the environment.” Id . at 35203.
Given the above, USWAG urges EPA to tailor the location restrictions for existing surface impoundments to include those for floodplain and unstable area locations. These location restrictions, along with the MSHA

- based structural stability requirements for all CCR surface impoundments, will ensure the early detection and response to potentia l impoundment structural stability issues, while also allowing for the proper integration and harmonization of the requirements in the final CCR and ELG rules.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 74 2 

### See Attachment A to USWAG comments filed in Docket No. EPA

- HQ

- RCRA

- 2012

- 0028 (Hazardous and Solid Waste Management System; Identification and Listing of Special Wastes; Disposal of Coal Combustion Residuals From Electric Utilities; Notice of Data Availab ility and Request for Comment; 78 Fed. Reg. 46940 (August 2, 2013).

Commenter Name: James R. Roewer Commenter Affiliation: Utility Solid Waste Activities Group (USWAG) Document Control Number: EPA

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- A1 Comment Excerpt Number: 11 Ex ternal Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
To assist EPA in ensuring the harmonization of the CCR and ELG rules, USWAG provided EPA with proposed draft text for § 257.100(j)(1) clarifying that o ne of the potential triggering events for the closure of a landfill or surface impoundment is when it ceases to receive any waste (in addition to CCR) it is permitted to manage. We reiterate our suggested language below.

SUGGESTED TEXT FOR INITIATING CCR UNIT CLOSURE:
40 C.F.R. § 257.100 Closure Criteria

. . . . (j) (1) Subject to paragraph (2) of this subsection, the owner or operator of a CCR landfill or surface impoundment must commence closure activities thirty days after the final known recei pt of a waste the unit is permitted to manage or within thirty days after the conclusion of the functions authorized for such surface impoundment or landfill as set forth in a state

- approved operating plan or other state authorization, whichever is later.
(2) If the CCR landfill or surface impoundment has remaining capacity and there is a reasonable likelihood that the unit will resume managing a waste, the unit must commence closure activities within two years after the most recent receipt of waste. This period may be extended in two year increments provided the owner or operator demonstrates in a written certification to the facility’s operating record and relevant state agency, at expiration of the initial two year period and every subsequent two year p eriod as applicable, that the owner or operator has a reasonable belief that the unit will resume managing a waste.

Commenter Name: James R. Roewer Commenter Affiliation: Utility Solid Waste Activities Group (USWAG) Document Control Number: EPA

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- A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 75 Comment Excerpt Number: 13 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

D. Identification of Subtitle D as Likely Management Option for CCR Rule

USWAG read wit h interest EPA’s statement in the preamble to the ELG Proposal that development of the final ELG rules, combined with the anticipated reduction in the risk assessment for CCR, could have broad implications for the final CCR rule. Specifically, EPA stated that:
If this proves to be the case [ i.e. , a reduced risk in the CCR risk assessment], EPA’s current thinking is that, the revised risks, coupled with the ELG requirements that the Agency may promulgate, and the increased Federal oversight such requirement s could achieve, could provide strong support for a conclusion that regulation of CCR disposal under RCRA Subtitle D would be adequate.
78 Fed. Reg. at 34442. USWAG obviously supports this statement and believes that the reduced risk assessment results fo r CCR alone will be sufficient for EPA to select the Subtitle D Prime option. We also must note, however, as made clear in our initial comments, that the Subtitle D option is the only legally viable option available to EPA in the final CCR rule. See USWA G CCR Comment at 41. Therefore, the real choice for EPA is not choosing between the Subtitle C and Subtitle D options, but rather which Subtitle D option to select. As explained above, to ensure consistency and integration between the final CCR and ELG ru les, while continuing to protect human health and the environment, the Agency should select the Subtitle D Prime option.

Commenter Name: James R. Roewer Commenter Affiliation: Utility Solid Waste Activities Group (USWAG) Document Control Number: EPA

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- A1 Comment Excerpt Number: 25 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
Critical to the effective alignment and integration of the two rules is for EPA to select the Subtitle D Prime option in the final CCR rule because only this option offers the realistic possibility of surface impoundments continuing to manage CCR. This regulatory option is necessary because the ELG rulemaking contemplates a future role for impoun dments for purposes of managing legacy CCR transport waters, as well as serving as part of the ELG treatment train for other specified wastewaters. Therefore, it is important that nothing in theEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 76 final CCR rule result in the premature closure of surface im poundments that are operating in an environmentally protective manner.

Commenter Name: Elizabeth E. Aldridge, Hunton & Williams Commenter Affiliation: UWAG Document Control Number: EPA

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- 4655 Comment Excerpt Number: 151 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

XIV. The Rule Needs to Allow for the Continued Treatment of “Legacy Wastes” EPA’s ELG proposal recognizes that certain “legacy” CCR transport waters, such as fly as h, bottom ash, and flue gas mercury control legacy waters, will continue to be managed in impoundments, subject to present BPT limits. See 78 Fed. Reg. at 34,461

- 63. As EPA recognizes, impoundments may be necessary both to treat “legacy” wastes already i n the impoundments and to treat other wastestreams (like combustion residual leachate or low volume waste) that do not require dry handling.
EPA should be careful, then, to allow ash ponds to remain in use as needed. This requires crafting the CCR rule so as not to require operators to commence closing ponds within 30 days of last receiving CCRs (75 Fed. Reg. 35,127, 35,252 col. 3 (June 21, 2010)) and not to require dredging and lining them within five years. Promulgating the “Subtitle D Prime” option in the CCR rulemaking is necessary to accomplish this.

Commenter Name: Jeff Stant, Patricia Schuba and Rae Schnapp Commenter Affiliation: Citizens Coal Council and the Wabash Riverkeeper Document Control Number: EPA

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- A6 Comment Excerpt Number: 4 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
There is also no information in EPA’s dockets on coal ash rulemaking about the potential for the chemistry of coal ash leachate to mobilize contaminants from the aquifer substrate itself.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 77 Commenter Name: Jeff Stant, Patricia Schuba and Rae Schnapp Commenter Affiliation: Citizens Coal Council and the Wabash Riverkeeper Document Control Number: EPA

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- A6 Comment Excerpt Number: 5 External Review Flag: Economics/Benefits External Review Incorporated into Response: No
Comment Excerpt:
Our comments are, in part, a response to and rebuttal of information submitted in the Electric Power Research Institute (EPRI) rep ort “An Evaluation of Potentially Exposed Populations in the Vicinity of Coal Combustion Waste Storage Units and Associated Cancer Risk” (EPRI, 2009). That document, prepared for EPRI by Gradient Corporation and Natural Resource Technology, greatly downpla ys the risk to people living near power plant waste sites.

Commenter Name: Jeff Stant, Patricia Schuba and Rae Schnapp Commenter Affiliation: Citizens Coal Council and the Wabash Riverkeeper Document Control Number: EPA

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- A6 Comment Excerpt Number: 6 External Review Flag: Envr Assess External Review Incorporated into Response: No
Comment Excerpt:
For example, the utilities were never asked about the location of wellhead protection areas nearby. Our comments specifically attempt to address the questions:

o 

### Are ash ponds or landfills in aquifers (beneath the water table) and if so, are these aquifers used as a drinking water source by people nearby?

o 

### How many private wells are nearby ash ponds?

o 

### Are there public water supply wells nearby ? How close are wellhead protection areas?

o 

### How close are these wells to the ash disposal sites, and where are they located in relation to these sites, upgradient? downgradient? sidegradient?

o 

### What effects might significant water withdrawal operations either individually or cumulatively have on groundwater flow directions from ash dump sites? We do not think the United States Environmental Protection Agency (hereafter called “EPA”) should make decisions to reduce the risk modeled in its Human and Ecolog ical Risk Assessment “by as much as an order of magnitude” without even having asked any of these questions in its 2010 Information Collection Request or comprehensively attempted to gather answers to these questions through other means.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 78 Commenter Name: Jeff Stant, Patricia Schuba and Rae Schnapp Commenter Affiliation: Citizens Coal Council and the Wabash Riverkeeper Document Control Number: EPA

- HQ

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- 2009

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- A6 Comment Excerpt Number: 7 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
2) EPA’s Risk Assessment is failing to assess or model physical factors that are common and significantly affect the risks modeled from CCR placement.
Furthermore, we note that this Human and Ecological Ris k Assessment (RA) 5 

### fails to even assess higher risks from scenarios occurring at coal combustion waste sites that are common and documented in these comments. Like the ICR’s, the RA fails to even attempt to determine the distances of drinking water or oth er wells from coal ash sites instead relying on a 1988 survey of the distribution of residential and municipal wells around municipal solid waste landfills. 6 

### The RA’s EPACMTP model and the ash disposal scenarios that were modeled did not allow EPA to
asse ss risks from disposal practices that have been documented to produce the highest risks to people, involving the following physical inputs:

1. Disposal in impoundments that do not have an unsaturated zone beneath them; 2. Disposal in impoundments that produces a mound in the water table driving groundwater radially outward in all directions from the impoundment; and 3. An impoundment in which ash has been placed below the water table.

NO UNSATURATED ZONE

The RA discusses the existence of the unsaturated zone relied upon in the EPACMTP model in Section 3.5.2 Modeling Approach and Assumptions : Figure 3

- 5 illustrates a compartmentalized surface impoundment with stratified sediment. Shown in the figure are the liquid compartment, the sediment compartment (with loose and consolidated sediments), and the unsaturated zone (with clogged and unaffected native materials). The model assumes that all sediment layer thicknesses remain unchanged throughout the life of the unit.
The EPACMTP surface impoundment model uses the unsatur ated zone flow model to calculate the infiltration rate out of the bottom of the impoundment. This model is designed to simulate steady

- state downward flow through an unsaturated (vadose) zone consisting of one or more soil layers. Steady

- state means that the rate of flow does not change with time. In the case of flow out of an unlined surface impoundment, the model simulates flow through a system consisting of three layers: a consolidated sediment layer, a clogged soil layer, and a native soil layer.

The n ative unsaturated soil extends downward to the water table. 7Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 79 Implicit in the contamination of shallow groundwater that has been so commonly documented from unlined surface impoundments is the fact that with time, there is no unsaturated zone of soil or oth er earthen material left between the bottom of the pond and the underlying groundwater. Therefore no attenuation of ash contaminants and no reduction in infiltration of ash leachate migrating through unsaturated materials are occurring. Yet the modeling i n the RA assumes such a scenario never exists in its calculation of risks from unlined CCW impoundments.

MOUNDING ARTIFICIALLY CONSTRAINED The RA’s modeling also artificially constrains the effects of groundwater mounding that commonly occurs at unlined CC W impoundments. Section 3.5.2 explains this constraint:
The modeled infiltration is governed by the depth of liquid in the impoundment and the following limiting factors: . . .

 

### Limitations on maximum infiltration rate from mounding. If the calculated infi ltration rate exceeds the rate at which the saturated zone can transport the groundwater, the groundwater level will rise into the unsaturated zone. The model accounts for groundwater mounding when calculating the infiltration rate from the surface impound ment unit and, if necessary, constrains the value to ensure that the groundwater mound does not rise to the bottom of the surface impoundment unit. 8


### Just as the unsaturated zone is invariably extinguished under some portion of an unlined surface impoundmen t that is contaminating underlying groundwater, monitoring at countless unlined CCW impoundments and other damage sites from ash disposal demonstrates that mounding is often occurring at these sites. The water table has risen to and above the bottom of the ash pond or landfill in these scenarios. The higher head within the disposal site is driving groundwater radially outward from the site including in directions considered to be upgradient based on predisposal topographic flow assumptions. Information from monitoring and documented damages establishing the existence of mounding have already been submitted to EPA for sites such as the Gibson plant site in Indiana, 9 

### the Shawnee plant site in Kentucky, the Cardinal and Gavin sites in Ohio 10 

### and many other site s. Mounding at the Gibson site’s ash ponds, examined further in these comments has been identified as the probable culprit for the contamination of private wells upriver from the site. Mounding is also evident in the radial flow outward from a Rush Island Plant ash pond in Missouri examined further in these comments.

DISPOSAL IN GROUNDWATER IGNORED
Perhaps the most egregious CCW disposal practice, dumping ash directly into the water table, is also not accounted for in the RA. 11 

### The EPACMTP model cannot do the arithmetic necessary to simulate groundwater moving laterally through thousands of tons of coal ash in the bottom of an ash pond that was excavated directly into the sand and gravel of a shallow floodplain aquifer. Without such capability, EPA cannot assess the greatly reduced attenuation and sorption of CCW metals from the lack of any unsaturated material to interact with ash leachate. Instead the groundwater has become the source water, i.e., the concentrated ash pore

- wat er. Even saturated material that would underlie ponds built above the water table is not available to attenuate orEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 80 sorb ash contaminants in this scenario. The infiltration rate will be far higher in such a scenario. The concentrations of contaminants suc h as arsenic reaching human receptors from this scenario could also be far higher than the concentrations producing the highest risks modeled in the RA. Mitigating arsenic risk has been a primary driver of EPA’s proposed coal ash rule. Given this
concern a nd the emphasis in RCRA of preventing endangerment and harm, it is hard to understand why EPA persists in using a model in the RA that cannot calculate risks from the scenario of ash disposal below the water table.
EPA’s modelers may have assumed that nobo dy would be foolish enough in the electric power industry or in state regulatory agencies to have started this practice, much less allowed it to continue up to the present day. Unfortunately the evidence from EPA’s damage cases and state files indicates a ny such assumption was and still is woefully mistaken.
Neither of the states whose impoundments are examined in this comment, Indiana nor Missouri, has a law or regulation prohibiting the construction of an ash pond excavated into groundwater.

Because EPA did not ask utilities if their ash ponds or landfills are built below the water table in the May 2010 ICR Questionnaire or in any previous ICR, it is not easy to make such determinations from information available to the public. However, we were able to m ake approximate determinations by comparing the deepest (lowest) elevation reported for the bottom of ponds in responses to the May, 2010 Questionnaire to the elevation for the average static water level for all wells within one mile of the ten power plant s in Indiana that we examined in this comment. Utilities managing two of these plants, Clifty Creek and Tanner Creek, redacted all information on the dimensions of their ash ponds from their responses to the Questionnaire.
Ponds at all of the remaining ei ght plants that we examined have bottom elevations that are below the average static water levels reported for wells within a mile of the plant.
In Missouri, ponds at three of the four power plants examined in our comments are below the water table. This information is based on “Detailed Site Investigations” that are required for those power plants to build a coal ash landfill on their property. While the utility is not required to report on groundwater chemistry in a DSI, the utility must submit informati on on groundwater that divulges whether ash ponds on site are in the water table. We note that answers to the questionnaire appear to provide bottom elevations for Missouri ash ponds that conflict with much of the information in the DSIs.

5 USEPA, Huma n and Ecological Risk Assessment of Coal Combustion Wastes , Draft, Office of Solid Wastes and Emergency Response, Office of Resource Conservation and Recovery, Regulation Identifier Number (RIN) 2050

- AE81, April 2010.

6 Id . at page 3

- 35.

7 Id. at page 3

- 28.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 81 8 Id. pages 3

- 29 & 3.30.

9 Letter from Charles H. Norris, P.G. and Mark A. Hutson, P.G., GEO

- HYDRO, INC, to Lisa Evans, Earthjustice and Jeff Stant, Environmental Integrity Project, "Subject: Geo

- Hydro, Inc. Critique of EPRI CCW Risk Evaluation" , Nov. 5, 2010, submitted in Comments of Earthjustice et al. to U.S. Environmental Protection Agency (“U.S. EPA”), Office of Resource Conservation and Recovery, Hazardous and Solid Waste Management System; Identification and Listing of Special Wastes; Disp osal of Coal Combustion Residuals From Electric Utilities, 75 Fed. Reg. 35,128 (proposed June 21, 2010) (comments filed Nov. 19, 2010) (Document ID No. EPA

- HQ

RCRA

- 2009

- 0640

- 6315), see page 5 and also see Environmental Integrity Project and Earthjustice, Out of Control:Mounting Damages from Coal Ash Waste Sites, Feb. 24, 2010, pages 19

- 22.

10 See Environmental Integrity Project (EIP), Earthjustice (EJ), and Sierra Club, In Harm’s Way: Lack of Federal Coal Ash Regulations Endangers Americans and Their Env ironment, August 26, 2010, pages 63

- 68 for the Shawnee site, pages 119

- 123 for the Cardinal site, and pages 124

- 131 for the Gavin site. See also page 4 of the Norris/Hutson Letter in Footnote 5

11 USEPA, Human and Ecological Risk Assessment of Coal Comb ustion Wastes , Draft, Office of Solid Wastes and Emergency Response, Office of Resource Conservation and Recovery, Regulation Identifier Number (RIN) 2050

- AE81, April 2010. See Sections 3.5 Surface Impoundment Model and 3.6 Groundwater Model on pages 3

- 26 through 3

- 36 and Figures 3

- 5 and 3

- 6.

Commenter Name: Jeff Stant, Patricia Schuba and Rae Schnapp Commenter Affiliation: Citizens Coal Council and the Wabash Riverkeeper Document Control Number: EPA

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- A6 Comment Excerpt Number: 8 E xternal Review Flag: Economics/Benefits External Review Incorporated into Response: No
Comment Excerpt:
Placement of CCRs near or below the water table is a fundamental causal factor for the damages that EPA has documented from CCRs in its damage case as sessments. This analysis of CCR ponds at plants in Indiana and Missouri suggests that placement of CCRs below the water table is still a fairly common practice, and that there are potentially many active CCR ponds built to dimensions below the water table that may operate for many years into the future. EPA must model the risks from this practice to understand the risks that Americans will continue to face from CCR disposal if EPA fails to promulgate rules that require the prompt phase out of such ponds un der subtitle C and the removal of their contents from the water table.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 82 Commenter Name: Jeff Stant, Patricia Schuba and Rae Schnapp Commenter Affiliation: Citizens Coal Council and the Wabash Riverkeeper Document Control Number: EPA

- HQ

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- 465 7

- A6 Comment Excerpt Number: 9 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
There are a number of closed ash ponds at the 14 plants we examined in Indiana and Missouri. We did not observe a sin gle such closed pond in the process of going through “clean closure.” Given the high numbers of ash ponds at these plants that appear to be below the water table, the failure to require removal of the ash from such ponds will leave a continual source of
co ntamination in place in the sand and gravel aquifers of floodplains as groundwater continues to move laterally through large volumes of CCR into the indefinite future at these sites. These shallow aquifers are highly productive and a major resource for fa rming, industry and water supply that is crucially important to the long

- term well

- being of many communities. Regardless of whether EPA’ RA addresses the danger to these communities from large volumes of coal combustion residuals that are still being dump ed into their water supplies, the agency’s proposed rule needs to assure that these communities will not be saddled into the indefinite future with monitoring and cleanup bills from the reckless placement of CCR below the water table.

Commenter Name: La uren P. Alterman Commenter Affiliation: CertainTeed Corporation Document Control Number: EPA

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- A2 Comment Excerpt Number: 2 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

In June 2010 EPA proposed a rule for CCRs. In that rule EPA defined CCRs as follows:
"Coal Combustion Residuals (CCRs) means fly ash, bottom ash, boiler slag, and flue gas desulfurization materials destined for disposal . CCRs are also known as coal combustion wastes (CCWs) and fossil fuel combustion (FFC) wastes, when destined for disposal (emphasis added).
To avoid the negative impacts anticipated by the Proposed CCR Rule, as summarized below and discussed in detail in our comments on the Proposed CCR Rule, CertainTeed continues to request that EPA promulgate clarifying language acknowledging that Wallboard Gypsum is not a CCR , and in the alternative, an explicit regulatory exemption for Wallboard Gypsum specifically
exc luding Wallboard Gypsum from the scope of any final CCR Rule.

II. BACKGROUND ON WALLBOARD GYPSUMEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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- 83 For more than 20 years, gypsum manufacturers have successfully and safely developed technologies to use FGD gypsum to manufacture wallboard. Electric utilities use a multistep manufacturing process to produce gypsum material that is sold to make wallboard. These public comments refer to that gypsum material as“Wallboard Gypsum.” It is also commonly known as “washed gypsum,”“washed FGD gypsum,”F GD gypsum and“synthetic gypsum.” Importantly, Wallboard Gypsum is not fly ash, boiler slag, bottom ash, FGD sludge, or unwashed FGD gypsum.

Commenter Name: Lauren P. Alterman Commenter Affiliation: CertainTeed Corporation Document Control Number: EPA

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- A2 Comment Excerpt Number: 4 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
The Proposed ELG Rule includes an important discussion on a related rulemaking regarding CCRs. As discussed above, EPA is reviewing the Proposed ELG Rule and Proposed CCR Rule together to understand what impact the two rulemakings will have on human health and the environment, as well as the regulated community. As part of that coordinated review, EPA has suggested that the new regulatory requirements laid out in the Proposed ELG Rule may allow CCRs to continue to be regulated under Subtitle D of RCRA. 78 Fed. Reg. at 34442.
CertainTeed believes that regardless of the outcome of the Proposed ELG Ru le, CCRs should be regulated under Subtitle D. As part of the comments filed by the Gypsum Association, of which CertainTeed is a member, the Gypsum Association provided a comprehensive overview of external and internal environmental, health and safety st udies that repeatedly affirm the safety of Wallboard Gypsum. In connection with its review of and comments on the Proposed CCR Rule, the Gypsum Association retained ARCADIS, an environmental consulting firm, to evaluate data concerning Wallboard Gypsum an d determine whether Wallboard Gypsum is safe and environmentally responsible. ARCADIS found that Wallboard Gypsum is a manufactured product and not a waste . Since Wallboard Gypsum is not a waste, it cannot be a RCRA hazardous waste.
In the absence of any risk to human health or the environment, regulation of CCRs as non

hazardous waste under Subtitle D of RCRA remains the appropriate approach. However, even if EPA were to conclude that CCRs are to be regulated under Subtitle D, there is an open question ab out how the Agency views Wallboard Gypsum. To avoid any regulatory confusion, and consistent with EPA's intent not to regulate beneficially

- reused CCRs such as Wallboard Gypsum, CertainTeed requests that the Agency acknowledge that Wallboard Gypsum does no t fall within the definition of a CCR. In the alternative, CertainTeed requests that Wallboard Gypsum be specifically exempt from regulation under 40 C.F.R. § 261.4(a). Specifically,Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 84 CertainTeed proposes that the Agency adopt the following language as it r elates to Wallboard Gypsum:
"Wallboard grade synthetic gypsum does not fall within the definition of coal combustion residuals.”
In the alternative CertainTeed proposes that the Agency adopt the following language exempting Wallboard Gypsum from regulation under 40 C.F.R. § 261.4(a):
“The grade of Wallboard Gypsum used in the manufacture of gypsum panels is excluded from regulation under 40 C.F.R. § 261.4(a).

Commenter Name: Lauren P. Alterman Commenter Affiliation: CertainTeed Corporation Document Cont rol Number: EPA

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- A2 Comment Excerpt Number: 8 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
In the alternative, CertainTeed requests that EPA create an explicit regulatory e xemption excluding Wallboard Gypsum from the scope of any final CCR Rule.

Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

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- A1 Comment Excerpt Number: 23 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
The ELG Rule Does Not Eliminate the Need for Stringent Coal Ash Disposal Rules under RCRA. While Options 4 and 5 of the ELG rule are critical steps to controlling the liqui d discharges from coal

- burning power plants, EPA must not stop there

— the Agency must proceed to finalize a coal ash rule as soon as possible. The most stringent options in the proposed ELG rule eliminate the discharge of billions of gallons of toxic wast ewater to our rivers and streams each year, as well eliminate the disposal of liquid waste in more than 1,000 largely unlined or inadequately

- lined ash and sludge impoundments. While these are essential and long overdue steps, the rule does not begin to ad dress many additional health and environmental threats posed by coal ash. Specifically, the ELG rule does not address safe closure of the thousand leaking andEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 85 potentially unstable coal ash impoundments nor does it address monitoring and cleanup of contamin ated groundwater, control of toxic dust, siting and construction of engineered landfills or provision of financial assurance for toxic spills and dump closures. Federally enforceable minimum standards under RCRA are needed to complement the strongest ELG option, and together they can address the toxic pollution from the hundreds of polluting coal

- burning power plants.

Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

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- A1 Comment Ex cerpt Number: 189 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

B. EPA’S PROPOSAL TO USE A GROUNDWATER INTERCEPTION MODEL THAT GROSSLY UNDERESTIMATES RISK TO DRINKING WATER IS ARBITRARY AND CAP RICIOUS AND CONTRARY TO LAW.
EPA proposed in the preamble that the facility

- specific data collected by EPA’s Office of Water for the ELG rule could be used in EPA’s risk assessment in ways that would significantly affect the results of that assessment. 856 

### Specifically, EPA noted that these data could be used to determine the extent to which plumes of contamination leaching from coal ash disposal units into groundwater are intercepted (and reduced) by surface water bodies that exist between a disposal unit and a down

- gradient drinking water well. According to EPA, these data “would allow EPA to better estimate the contaminant levels that people would be expected to receive in drinking water, and to better model the likely environmental risks (e.g., to fish a nd other aquatic life) from such contaminants in surface waters.” 857 

### EPA concluded that “because so many of the disposal units ... are located next to rivers, the results of the interception analysis could reasonably be expected to have a significant impact on the risk assessment results.” 858


### There are several significant problems with the use of the data derived from the ELG rulemaking and with the use of a new mathematical procedure introduced in the recent CCR NODA that purports to determine the impact of these nearby surface water bodies. 859 

### EPA’s use of the data ignores key factors that affect migration of CCR contaminants including infiltrating leachate

- soil interactions, the effects of water table mounding or depletion on the direction of groundwater f low at the local scale, aquifer heterogeneities, and the presence of actual receptors that are likely impacted by the CCR waste management units. Detailed comments addressing these issue were submitted in response to the NODA and they are attached to these comments as Appendix XII

- 1, Remy Hennet, Ph.D., “Response to the Notice of Data Availability (NODA) and Request for Comment;” Appendix XII

- 2, Russ Boulding, “EPA’s Proposed Modifications to the EPACMTP Model for Assessing Risk of Coal Combustion Residual Disposal Units to Groundwater andEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 86 Surface Water Further Weaken an Already Flawed Risk Assessment;” Appendix XII

- 3, Charles Norris, “Geo

- Hydro, Inc. Critique of EPRI CCW Risk Evaluation.”
EPA must consider the complex interactions of groundwater flow, leachate development, and large waste deposits and examine the site

- specific evidence that identifies risks and documents high levels of contaminants in groundwater at sites near large bodies of water, where such interactions have taken place. To ignore t he evidence of groundwater contamination and the populations at risk at these sites is without rational basis and contrary to law. Blind adherence to a model that may describe contaminant behavior at some, but not all sites, fails to protect human health a nd the environment and ignores the voluminous record of damage contained in the CCR docket.

856 

### Id.

857 

### Id.

858 

### Id

859 

### Comments of Earthjustice et al. to U.S. EPA, Office of Resource Conservation and Recovery, Notice of Data Availability and Request for Comment (Coal Ash NODA), 78 Fed. Reg. 46,940 (Aug. 2, 2013) (comments filed Sept. 3, 2013) (Document ID No. EPA

- HQ

- RCRA

- 2012

- 0028

- 0111).

Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

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- A1 Comment Excerpt Number: 190 External Review Flag: No External Review External Review Incorporated into Respo nse: No
Comment Excerpt:

C. EPA’S USE OF CHEMICAL DATA SUBMITTED TO THE OFFICE OF WATER TO MODEL IMPACTS TO GROUNDWATER FROM CCR DISPOSAL UNITS IS ARBITRARY AND CAPRICIOUS AND WITHOUT RATIONAL BASIS, BECAUSE THE DATA ARE NOT REPRESENTATIVE OF LEACHATE F ROM CCR LANDFILLS AND IMPOUNDMENTS.
The information in the ELG database pertaining to chemical data, while potentially relevant to determining the quality of water discharged directly to surface water, must not be used to revise the CCR risk assessment. Th e chemical data submitted in response to the questionnaire were not generated with the goal of being representative of the chemical diversity and variability of CCR disposal units. The reported data represent regulated effluents or monitoring points that haveEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 87 been selected for purposes unrelated to determining the nature of leachate entering groundwater from CCR landfills and impoundments. 860 

### These data cannot be directly compared with data that were acquired following the scientific method to characteriz e specifically the compositional variability and diversity of environmental releases from CCR disposal units. Combining the ELG’s treated and untreated leachate data with the CCR

- specific leachate data in the risk assessment would be arbitrary and without rational basis.
Specifically, the use of the chemical data ignores the critical difference between pore water and leachate. There is almost never pore water collected as impoundment leachate, and impoundment water will almost invariably have lower concen trations of metals and other coal ash contaminants than pore water. The two primary reasons for the lower concentrations in discharged impoundment leachate are one

- time and brief contact with CCR and dilution from precipitation and storm water runoff when the leachate is co

- managed. In the case of the ELG chemical data, the industry responses indicate the leachate is often co

- managed. Thus the leachate data represent low contaminant concentrations compared to the pore water data used in the CCR risk assess ment. In contrast, if a CCR waste disposal unit had a sub

- waste leachate collection system and industry responders collected that leachate and analyzed it before treatment or mixing with other leachate or runoff, it would represent pore water within the la ndfill or impoundment. Without meeting each of these conditions, however, the sampled leachate does not represent pore water, and it will almost certainly be less concentrated than a pore water sample would be. There is no indication that any of the sampli ng data submitted by industry pursuant to the ELG questionnaire was undiluted pore water, because the questionnaire did not direct responders to analyze that type of sample. 861 

### EPA did not place the schematic diagrams or photos of the sampling points requ ired by the questionnaire in the record, so commenters cannot consult these
sources. EPA, however, can and must do so.
Commenters note that any water that comes in contact with CCR is “leachate,” and while it is legitimate to identify the data submitted t o EPA as “leachate,” it is not “pore water” and therefore its application to the risk assessment must be scrutinized. For purposes of modeling groundwater impacts in the CCR risk assessment, only pore water should be used. If other forms of leachate are c ombined with the pore water data, gross underestimation of risk will result. For example, EPA cannot and must not conclude that the concentrations of arsenic and other contaminants in leachate reported in the industry responses to the questionnaire
are rep resentative of pore water, particularly for surface impoundments.
Further information on the need to use the ELG chemical data for the specific purpose for which it was collected and its inapplicability to the CCR risk assessment is found in Appendix XII

- A and an exhibit attached to this comment letter.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

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- 88 860 

### See ELG Questionnaire, Part G, Leachate Sampling Data. “The untreated leachate samples must be collected directly from the leachate collection system or holding tank prior to any form of treatment.” “If the [unit] has multiple collection points, the untreated sample may be collected from a common header area, if applicable. If there is not a common header area for the [unit], the plant may select one of the collections points that is “representative” of the [unit] from which to collect the sample. If warranted . . . the plant may need to collect samples from more than one collection point to obtain representative samples.”

861 

### Id.

Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

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- A1 Comment Excerpt Number: 191 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

D. EPA MUST CONSIDER INCREASED RISK FROM THE SUBSTANTIAL RIS E IN THE NUMBER OF UNLINED AND INADEQUATELY LINED SURFACE IMPOUNDMENTS IDENTIFIED IN THE DATA GATHERED FOR THE ELG RULE.
EPA notes in the preamble to the ELG rule that new data submitted by industry provided information on the location, size, and the type of waste present in hundreds of CCR surface impoundments that were omitted from the data sources on which EPA relied to develop the proposed CCR rule. The increase in the number of known surface impoundments is substantial; the number of CCR surface impoun dments increased 50 percent from 710 to 1,070 impoundments since 2010. EPA also noted that the newly identified impoundments were generally smaller than the impoundments included in the data used to support the proposed CCR rule. EPA, must however, look at factors beyond volume, which is not always determinative of the risk posed by CCR dumps.
EPA must consider a multitude of factors in addition to volume of CCR when determining risk to human health and the environment. According to EPA’s Office of Resea rch and Development, the extent of leaching from CCR disposal units involves the following critical controlling factors: chemical factors, physical factors and site conditions. 862 

### Chemical factors include equilibrium/kinetic control, pH, liquid

- solid rati on, complexation, redox, sorption and biological activities. 863 

### Physical factors include particle size and rate of mass transport. 864 

### Third, site conditions include flow rate of leachate, temperature, bed porosity, fill geometry, permeability and hydrologi cal conditions. 865 

### These factors, as well as the proximity of sensitive receptors, have great impact on the risk posed by the release of hazardous substances from CCR disposal units.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 89 In addition, the Agency must also consider the presence or absence of sa feguards to prevent the migration of hazardous contaminants. The absence of composite liners at CCR surface impoundments is of great concern, and the widespread lack of barriers to stop contaminant migration must be factored into the risk assessment. 866 

### Ac cording to the draft risk assessment, only composite liners are effective in reducing the leaching of dangerous quantities of hazardous substances into underlying groundwater. 867


### This should be of great concern to EPA, because the responses to the ELG ques tionnaire indicate with certainty that at least 61 percent of all surface impoundments lack composite liners. 868 

### However, the actual number of impoundments without composite lines may greatly exceed this number. Due to the lack of clarity of both EPA’s que stionnaire and the industry responses (9.5 percent of responders failed to answer the question, most responders did not provide a complete response, and some answers were contradictory), an exact count of surface impoundments lacking composite liners is im possible. 869 

### However, when one considers that a high

- density polyethylene (HDPE) membrane is an essential component of a composite liner system, only 78 active surface impoundments in total (only 6.8 percent of surface impoundments) admitted to using a HD PE liner. The number diminishes even further when one considers the requirement that the HDPE liner be combined with a compacted clay liner and achieve minimum hydraulic conductivity. Based on these factors, the number of active surface impoundments meeti ng these criteria dwindles to less than a dozen , meaning that 99 percent of surface impoundments may lack protective composite liners. While the ambiguity of both the questionnaire and the responses prevent a precise count, it is certain that the overwhelm ing majority of operating surface impoundments lack the liners that are critical to protect human health and the environment. This must be taken into account in the revised risk assessment.
Lastly, EPA must amend the risk assessment to reflect the large increase in the number of CCR surface impoundments, which greatly increases the potential for birds, amphibians and wildlife to be injured by these “attractive nuisances.” CCR impoundments often create habitats attractive to many species of wildlife .870 

### La ndscape features of CCR impoundments often include wooded edges, open herbaceous areas, and open water and can provide nesting habitat for birds (e.g., shrub and tree edges) as well as abundant and diverse prey populations (e.g., insects, amphibians and fi sh). However, these impoundments may attract wildlife into areas that pose substantial risks to their health because of the CCR contaminants in water, sediment and plants in and around the impoundments. For example, birds attracted to nest around coal ash settling basins may expose their young to contaminants by provisioning them with contaminated food. 871 

### The accumulation of toxic metals, particularly selenium, in fish, birds, amphibians and mammals that frequent CCR impoundments can adversely affect thei r development, reproduction, and survival. 872 

### EPA must examine the level of increased risk posed by the significant increase in the number of impoundments.

862 

### See Susan Thorneloe, U.S. EPA, Office of Research and Development, “Use of Leaching Environmental Assessment Framework for future fly ash management decisions,” presented atEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 90 Workshop on Environmental Aspects of Coal Ash Uses, Tel Aviv, Israel (May 13, 2013). S ee also EPA, Office of Research and Development, Characterization of Coal Combustion Residues from Electric Utilities

—

Leaching and Characterization Data (EPA/600/R

- 09/151) at ii (Dec. 2009), available at http: //www.epa.gov/nrmrl/pubs/ 600r09151/600r09151.html (citing EPA, Characterization of Mercury

- Enriched Coal Combustion Residuals from Electric Utilities Using Enhanced Sorbents for Mercury Control (EPA

– 600/ R

– 06/008) (Feb. 2006), available at http://www.epa.gov/ORD/NRMRL/pubs/600r06008/600r06008.pdf; and EPA, Characterization of Coal Combustion Residuals from Electric Utilities Using Wet Scrubbers for Multi

- Pollutant Control (EPA

– 60 0/ R

– 08/077) (July 2008), available at http://www.epa.gov/nrmrl/pubs/600r08077/600r08077.pdf.

863 

### Id. at 10.

864 

### Id.

865 

### Id.

866 

### Composite liners are defined as 60 mil HDPE membrane with either an underlying geosynthetic clay liner or a 3

- foot compacted clay liner. A leachate collection system is also assumed to exist between the waste and the liner system. See U.S. Envtl. Prot. Agency, “Draft: Human and Ecological Risk Assessment of Coa l Combustion Wastes,’’ April 2010 (EPA

– HQ

– RCRA

– 2009

– 0640

– 0002), 3

- 21. In addition, the lower component must have a hydraulic conductivity of no more than 1x10(

- 7) cm/sec.

867 

### According to the draft risk assessment, “For the groundwater

- to

- drinking

- water pa thway, composite liners, as modeled in this assessment, effectively reduced risks from all constituents to below a 10

- 5 cancer risk or HQ of 1 for both landfills and surface impoundments at the 90th and 50th percentiles.” ES

- 5.

868 

### Sixty

- one percent of ind ustry responders admitted to having only a single liner or less, which excludes all composite liners.

869 

### See Steam Electric Questionnaire, Part D, Pond/Impoundment Systems, Question D4

- 4.

870 

### See Rowe, C.L., Hopkins, W.A., Congdon, J.D., 2002. Ecotoxicolo gical implications of aquatic disposal of coal combustion residues in the United States: a review. 80 Environmental Monitoring and Assessment 207.

871 

### See Hopkins, W.A., Parikh, J.H., Jackson, B.P., Unrine, J. M. 2012. Coal Fly Ash Basins as an Attractive Nuisance to Birds: Parental Provisioning Exposes Nestlings to Harmful Trace Elements. Environmental Pollution 161:170

- 177.

872 

### Id.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 91 Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 468 4

- A1 Comment Excerpt Number: 192 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

E. EPA MUST CONSIDER INCREASED RISK FROM THE SUBSTANTIAL RISE IN THE NUMBER OF UNLINED AND INADEQUATELY

- LINED CCR LANDFILLS IDENTIFIED IN THE DATA GATHERED FOR THE ELG RULE.
As a result of industry responses to the ELG questionnaire, the number of known CCR landfills has also increased substantially. The number of industry

- identified CCR landfills increased 30 percent from 337 to 437 landfills. 873 

### Most critically, the ELG data indicate that the number of unlined and inadequately

- lined landfills must be taken into account in the CCR risk assessment. While industry claims that 60

- 62 percent of CCR landfills are lined and about 40 percent are unlined, 874 

### a closer look at industry responses to the questionnaire indicates that industry has these figures exactly backwards.
The analysis requires a close examination of industry responses. Part F of the ELG questionnaire was dis tributed to 97 coal and petroleum coke

- burning plants, which is a subset of the 504 coal and petroleum coke

- burning plants that received the questionnaire. 875 

### Part F contained detailed questions regarding the use of landfill liners. Each plant was asked fi rst to indicate whether their landfills were lined and, if so, to provide information regarding the type, number and nature of the liner(s). 876 

### While industry responded that more than 60 percent of the 108 landfills identified were “lined,” the liner descr iptions tell a much different story. Because EPA did not define “liner,” many of the responses included materials that would not be considered to constitute a liner, or certainly not an adequate liner for proper CCW management. For example, layers of pure ly soil, scrubber sludge, bottom ash, and general fill were considered “liners.” Landfills that appear to have been placed on existing ground conditions with no amendment were also considered to have “liners,” including undisturbed clay, partial clay, nat ural clay and natural chinle. When one considers the absence of a constructed liner and removes these types of clearly inadequate liners from the dataset, the percentage of “lined” landfills falls to 39 percent, and 61 percent of landfills can be considere d “unlined,” or inadequately lined at best.
Furthermore, when one attempts to quantify the number of landfills having composite liners, which were identified in the risk assessment as essential to preventing migration of CCR contaminants, the percentage fa lls to about 24 percent of the total number of landfills. 877 

### This estimate is conservative because the questionnaire did not ask responders to identify composite liners. For the purpose of this estimate, all liners employing high density polyethylene or PVC and having more than one liner layer were considered to ha ve a “composite liner.”Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 92 EPA must take this critical new information into account when revising the CCR risk assessment. Lastly, EPA must also consider the location of the CCR landfills and their proximity to receptors, both human and ecological, as descri bed above for CCR impoundments.

873 

### See Gradient, Corp. The Implications of US EPA's Notice of Data Availability (August 2, 2013) on the Human and Ecological Risk Assessment of Coal Combustion Waste, August 30, 2013 at 3, available at www.regulations.gov.

874 

### Id. at 5.

875 

### 78 Fed. Reg. at 34,443.

876 

### See ELG Questionnaire, Management Practices for Ponds/Impoundments & Landfills, question F3

- 8.

877 

### Id.

Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 4684

- A1 Comment Excerpt Number: 193 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
EPA stated in the preamble to the proposed EL G rule that new data regarding landfill size from industry responses to the 2010 ELG survey may prompt EPA to refine the screening assessment of risks posed by inhalation of fugitive dust from coal ash landfills. 878 

### We addressed the serious shortcomings o f the screening assessment in comments submitted in response to the proposed CCR rule. 879 

### The methodology employed by EPA’s 2009 screening risk assessment, entitled Inhalation of Fugitive Dust: A Screening Assessment of the Risks Posed by Coal Combustion Waste Landfills , 880 

### is substantively flawed and considerably underestimated risks to communities near coal ash landfills. Specifically, the 2009 screening risk assessment considered only one source of fugitive dust emissions from coal ash, i.e. , wind erosi on, and failed to assess the substantial emissions that occur during unloading and grading of the waste as well as from trucks traveling on the deposited waste at the landfill. Further, the 2009 screening risk assessment only considered risks posed by inha lation of fugitive dust particulate matter emitted from coal ash landfills as measured by the potential violation of national ambient air quality standards; it does not assess constituent

- based risks, i.e. , the effects of toxic trace elements contained in coal combustion waste nor risks posed by levels of radioactive materials found in the ash.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 93 As described in more detail in the letter from Pless, attached as Appendix G, the ELG survey was not designed to contribute meaningful data to the risk screening ass essment. EPA notes that the industry survey includes data on hundreds of surface impoundments that are generally smaller than the impoundments used to support the CCR Rule. For purposes of the inhalation screening risk assessment, surface impoundments m ust be kept separate from landfills because of their different operating characteristics and surface area exposed to wind erosion. 881

878 

### 78 Fed. Reg. at 34,442.

879 

### Petra Pless, Pless Environmental, Inc., Letter to Eric Schaeffer, Environmental Integrit y Project, Re: Review of EPA’s Inhalation of Fugitive Dust: A Screening Assessment of the Risks Posed by Coal Combustion Waste Landfills, November 16, 2010; available at http://www.regulations.gov/contentStreamer?objectId=0900006480cce734&disposition=attachm ent&contentType= pdf.

880 

### Inhalation of Fugitive Dust: A Screening Assessment of the Risks Posed by Coal Combustion Waste Landfills

88 1 

### http://www.epa.gov/wastes/inforesources/pubs/training/ldu05.pdf.

Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 4684

- A1 Comment Excerpt Number: 194 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
The ELG questionnaire contains information regarding use of safeguards, in addition to liners, such as caps, groundwater monitoring and leachate collection systems at CCR landfill and surface impoundments. 882 

### Failure to use these safeguards greatly increases the risk of release of hazardous constituents and/or the likelihood of remediation before toxic chemicals meet receptors or enter drinking water. EPA must determine the extent to which both existing and closed CCR disposal units are employing critical safeguards and factor this information into the final risk assessment. In addition, the data regardi ng closed units must be used in the risk assessment to determine the relative risk posed by legacy waste units. For example, according to the ELG data, while 70 percent of operating landfills have some sort of liner, 55 percent of closed landfills have abs olutely no liner. 883Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 94 882 

### See, e.g., Steam Electric Questionnaire, Part F. Management Practices for Ponds/Impoundments and Landfills, F3

- 8, F3

- 9, F3

- 11.

883 

### See, e.g ., Steam Electric Questionnaire, Part F. Management Practices for Ponds/Impoundments and L andfills.

Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 4684

- A1 Comment Excerpt Number: 195 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

2. The significant increase in the number of CCR damage cases demonstrates the validity of the high risk findings of the draft risk assessment, particularly as it relates to arsenic.
Data made available for the proposed ELG Rule demon strates that the risks to human health and the environment from disposal of coal ash have increased throughout the United States. The docket for the ELG Rule included a document, entitled Final Determination of Identified Proven Damage and Recently Allege d Damage Cases , in which EPA confirms that there are 38 proven and 95 potential coal ash damage cases. 884 

### This represents an additional 18 proven and 49 potential coal ash damage cases than previously confirmed by EPA in its proposed 2010 CCR rule, nearly doubling the number of confirmed damage cases and more than doubling the number of potential damage cases. 885 

### This new information should be incorporated into EPA’s draft CCR risk assessment and factored into EPA’s decision

- making process on the CCR dispo sal rule in order to properly account for the increased risks of current disposal practices.
Surprisingly, the preamble to the ELG Rule did not mention the 68 new damage cases, although EPA did indicate that new data relating to CCR were available in the d ocket. While ignoring the greater evidence of damage, EPA specifically noted that the new information on size and management practices at coal ash disposal units

– should serve to “lower the CCR rule risk assessment results.” 886 

### EPA, however, must conside r the evidence in the record, which demonstrates that damage has in fact occurred at far more sites than previously acknowledged. Such evidence of damage provides strong support for a RCRA Subtitle C disposal rule.

EPA should use all of the new data made a vailable by the ELG docket regarding potential risks to human health and the environment from coal ash disposal sites to prepare both its ELG and CCR rule. The Agency must not arbitrarily and capriciously ignore evidence of real world harm at dozens of ne w sites nationwide.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 95 884 

### EPA, Final Determination of Identified Proven Damage and Recently Alleged Damage Cases [DCN SE01966], Docket No. EPA

- HQ

- OW

- 2009

- 0819

- 2212.

885 

### See Environmental Integrity Project, “EPA Confirms 18 New Coal Ash Pollution Sites

- 15 Identified by Environmental Integrity Project, Agency identifies “Potential” damage at 49 more locations (Aug. 8, 2013), available at http://www.environmentalintegrity.org/news_reports/documents/2013.08.12DamageCase_Portfo lio_REVISED.pdf.

886 

### 78 Fed. Reg. at 34,442.

Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 4684

- A1 Comment Excerpt Number: 196 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

As described in comments submit ted to EPA pursuant to the CCR NODA, 887 

### and further discussed below, EPA’s impoundment assessment reports, 888 

### which assessed the structural integrity of more than 500 CCR impoundments, revealed significant problems at a large number of potentially dangerous dams. The assessments documented a high level of risk posed by numerous high and significant hazard dams th at either were found not to have factors of safety 889 

### that met federal standards or had not conducted sufficient analyses to determine such factors. Of the 516 assessments completed, only 41 percent of the dams (214 dams) were rated “satisfactory,” and 59 percent were rated “poor” or “fair.” In fact, 80 high and significant hazard dams were found to be in poor condition. 890 

### In addition, the much more detailed assessments conducted on the 24 TVA dams, which involved in

- depth geotechnical analysis of each da m, revealed that half of the dams were in poor condition, in danger of failure and required repair to ensure structural stability. If equivalent analyses were performed on each of the 516 dams inspected by EPA, it is likely that many more dams would have b een found in conditions similar to the TVA dams. These comments also incorporate by reference the comments by former MHSA Director, Jack Spadaro, submitted by Commenters as an exhibit to this letter.

887 

### Comments of Earthjustice et al. to U.S. EPA, Offi ce of Resource Conservation and Recovery, Notice of Data Availability and Request for Comment (Coal Ash NODA), 78 Fed. Reg. 46,940 (Aug. 2, 2013) (comments filed Sept. 3, 2013) (Document ID No. EPA

- HQ

- RCRA

- 2012

- 0028

- 0111).

888 

### See http://www.epa.gov/osw/nonhaz/industrial/special/fossil/surveys2/index.htm.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 96 889 

### Minimum stability standards require that impoundments maintain a Factor of Safety of at least 1.5, measured by dividing the strength of the dam by the driving force of its encapsulated material.

890 

### See Earthjustice NODA comments for complete discussion.

Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 4684

- A1 Comment Excerpt Number: 197 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
EPA’s “List of Coal Plant and Closest Receiving Water” purports to link each coal plant with the clos est receiving water body. EPA’s list, however, does not always include all receiving waters associated with a coal plant. EPA states “EPA created a list linking the location of each coal plant with the closest receiving water body for evaluating surface water risks as well as human health risks.” 891 

### Our review of a handful of National Pollutant Discharge Elimination System (NPDES) permits and applications reveal that EPA’s list does not include all receiving waters for some plants. 892



### We reviewed 36 NPDES permits and found that EPA did not list all receiving waters for 13 of these plants. 893 

### For example, EPA’s list states that the Ohio River is the sole receiving water for the W. H. Zimmer plant. However, the permit states that the plant discharges into the Ohio River, Maple Creek, and Little Indian Creek. 894 

### A list of the 36 plants reviewed and additional receiving waters for the 13 plants is submitted as an exhibit to this comment letter.
These omissions are significant and would likely impact the risk assessment by erroneously lowering risk levels. Large rivers have more capacity to dilute toxic pollution from coal combustion waste impoundments and landfills. Toxic pollution in small streams and creeks will result in higher concentrations of selenium , cadmium, and other pollutants that are toxic to aquatic life in minute concentrations. In addition, humans recreating in and around these smaller water bodies will also face a greater risk of adverse health effects from exposure to higher concentrations of coal combustion waste pollution. In order to evaluate the risks of coal combustion waste disposal in a meaningful way, EPA must account for surface water loadings in all receiving waters. Thus, EPA should review the NPDES permit and application for e ach coal plant to ensure that all receiving water bodies are identified and taken into account in the risk assessment.

891 

### 78 Fed. Reg. 46,940, 46,943 (Aug. 2, 2013).Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 97 892 

### See exhibit submitted with this comment letter.

893 

### Id.

894 

### See Ohio Envtl. Prot. A gency, Authorization to Discharge Under the National Pollutant Discharge Elimination System for Duke Energy Ohio, Inc. for Discharges from the William H. Zimmer Station (July 1, 2010).

Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 4684

- A1 Comment Excerpt Number: 198 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

XVI. THE ELG RULE DOES NOT ELIMINATE THE NEED FOR STRINGEN T CCR DISPOSAL RULES UNDER RCRA
While Options 4 and 5 of the ELG rule are critical steps to controlling the liquid discharges from coal

- burning power plants, EPA must not stop there

— the Agency must proceed to finalize a coal ash rule as soon as possible. The most stringent options in the proposed ELG rule require conversion to dry handling of fly ash and bottom ash and the treatment of FGD wastewater, and thus would eliminate the discharge of billions of gallons of toxic wastewater to our rivers and streams each year, as well eliminate th e disposal of additional liquid waste in more than 1,000 largely unlined or inadequately

- lined ash and sludge impoundments. While these are essential and long overdue steps toward protecting the health and the environment of communities living downstream o f coal plants, the rule does not begin to address many additional health and environmental threats posed by coal ash. Specifically, the ELG rule does not address safe closure of the thousand leaking and potentially unstable coal ash impoundments nor does i t address monitoring and cleanup of contaminated groundwater, control of toxic dust, siting and construction of engineered landfills or maintenance of financial assurance for toxic spills and dump closures. Federally enforceable minimum standards under RC RA are needed to complement the strongest ELG option, and together they can address the toxic pollution from the hundreds of polluting coal

- burning power plants.
Assuming, as discussed in Section X, that EPA addresses structural stability requirements for CCR impoundments under specific, timely and enforceable BMPs, the following critical gaps still need to be addressed by an enforceable federal coal rule under RCRA as soon as possible.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 98 Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, e t al. Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 4684

- A1 Comment Excerpt Number: 199 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
If EPA fails to finalize Options 4 or 5 and to address legac y wastewater, releases of hazardous substances from CCR surface impoundments will continue to damage groundwater and surface water and adversely impact human health and the environment, absent strong RCRA regulations. Continued operation of CCR impoundment s requires stringent ground water monitoring and corrective action standards when contaminants are detected. Furthermore, the construction of additional new impoundments is likely to continue under EPA’s weaker options, and currently there are no federal CCR standards in place to require adequate design and maintenance. The widespread absence of adequate state regulations governing CCR disposal makes the establishment of minimum federal standards absolutely essential to protection of health and the enviro nment. 895

895 

### Earthjustice has previously submitted detailed analysis of the deficiencies of state CCR programs. See Comments of Earthjustice et al. to U.S. Environmental Protection Agency (“U.S. EPA”), Office of Resource Conservation and Recovery, Hazar dous and Solid Waste Management System; Identification and Listing of Special Wastes; Disposal of Coal Combustion Residuals From Electric Utilities, 75 Fed. Reg. 35,128 (proposed June 21, 2010) (comments filed Nov. 19, 2010) (Document ID No. EPA

- HQ

- RCRA

- 20 09

- 0640

- 6315) and Comments of Earthjustice et al. to U.S. EPA, Office of Resource Conservation and Recovery, Notice of Data Availability and Request for Comment (Coal Ash NODA), 76 Fed. Reg. 63,252 (Oct. 12, 2011) (comments filed Nov. 14, 2011) (Document I D No. EPA

- HQ

- RCRA

- 2011

- 0392).

Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 4723

- A1 Comment Excerpt Number: 1 External Review Flag: Engineering External Review Incorporated into R esponse: No
Comment Excerpt:
It is well established that pH conditions exert strong control on the release, fate, and transport of contaminants in the environment (Stumm and Morgan, 1996). This dependence and control is illustrated in Figure 1 for arseni c and selenium (EPA, 2006; EPA, 2012).Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 99 Leachate samples obtained from coal combustion waste (CCW) materials show a very large range of pH values, from less than 3 to more than 12 SU, depending on the type of waste or waste management unit (EPA, 2006; EPA, 2009).
A review of pH data from the EPA studies that are relied upon in the 2010 risk assessment (EPA, 2010) and from the Questionnaire results (EPA, 2013) lead to the following observations and conclusions:

1. The available pH data for leachate from CCW mate rials in landfills and impoundments indicate that these two modes of disposal result in different leachate pH distributions. This is illustrated in Figure 2 using the data from the input files of the 2010 risk assessment (n = 89 for landfills, 14 for impou ndments). The two leachate pH distributions are statistically different from one another (p < 0.05; t

- test). 2. The pH data for CCW landfills and impoundments reported in the Questionnaire similarly show that the pH distributions are different for these two m odes of disposal. This is illustrated in Figure 3 using data from the Questionnaire (n = 211 for landfills, 69 for impoundments). The two leachate pH distributions are statistically different from one another (p < 0.05; t

- test). 3. The pH distributions for CC W landfills and impoundments from the Questionnaire results are substantially different from the distributions from various studies relied upon in the 2010 risk assessment. This is illustrated in Figure 4. The leachate pH distributions are statistically d ifferent from one another (p < 0.05; t

- test).
The Questionnaire results report pH conditions for CCW landfills and impoundments that are overwhelmingly in the neutral range (pH 6 to 8 range). In this pH range, the solubility and mobility of arsenic, seleni um, and most metals are low compared to pH values outside of the neutral range (see, for example, Figure 1). The leachate pH values reported in the Questionnaire are for samples collected from a variety of drains, outfalls, seeps and drainage areas. 1 

### Sampl es collected from these locations most likely represent mixtures of leachate and other drainage and precipitation water rather than CCW leachate end

- members.
The risk assessment model requires end

- member leachate compositions as input. In the model, the ef fect of attenuation processes is applied starting with the end

- member compositions and carried forward as the leachate transports and reacts in the environment. Using compositions that do not represent leachate end

- member compositions as input to the mode l is therefore inappropriate for the risk assessment. Samples that represent CCW leachate end

- member compositions cannot be identified based on the information provided in the Questionnaire. The Questionnaire results can therefore not be used as end

- member input in the risk assessment model.
These observations and conclusions are important and cannot be ignored. First, the data indicate that pH distributions are different for CCW landfills and impoundments, and therefore different distributions should be us ed in the risk assessment. Second and most important, the data indicate that the Questionnaire results are not representative of the pH conditions in CCW landfills and impoundments, and therefore, the Questionnaire data should not be relied upon to repres ent pH conditions in CCW landfills and impoundments. This latest conclusion is supported by:Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 100  

### The pH values reported in the Questionnaire are inconsistent with results obtained by several scientific studies that were conducted specifically to characterize a nd represent CCW landfills and impoundments leachate compositions. These studies include EPA 2006, EPA 2009, and other data sources reviewed and compiled by the EPA for the 2010 risk assessment. The pH distributions from these studies (as used in the 2010 risk assessment input files), the EPA’s large

- scale compilation of landfill leachate pH (EPA, 2009; Section 2.5.2), laboratory pH from fly ash samples (EPA, 2009, Appendix I) 2 

### , and the Questionnaire results are illustrated in Figure 5. The figure illustrat ion supports the conclusion that the Questionnaire results are different and not representative of the end

member leachate compositions from CCW landfills and impoundments. The Questionnaire pH distributions for untreated water samples from CCW landfills and impoundments have median pH values that are neutral (7.45 and 6.66, respectively). The corresponding median values from the scientific studies used in the 2010 risk assessment are much more basic (10.10 and 9.05, respectively). These pH distributions are summarized in Table 1.

 

### The pH and chemical results reported in the Questionnaire were not generated with the goal of being representative of the chemical diversity and variability of the CCW waste management units and the leachate composition generated by these units. The reported data most often represent regulated effluents or monitoring points that have been selected for various purposes (e.g. NPDES discharge points, post treatment leachate; see footnote 1).

 

### The nature of the samples reported as lea chate in the Questionnaire and their pH values have not been verified.

 

### In the Questionnaire the reported pH values represent less than 4% of the number of the reported CCW impoundments. 3


### The conclusion that the pH values reported in the Questionnaire are not representative of leachate from CCW landfills and impoundments is supported by several scientific studies, as discussed above. This conclusion implies that the chemical results reported in the Questionnaire are also not representative of the leachate e nd

- members from CCW landfills and impoundments. This is a direct consequence of the control pH exerts on dissolved composition and on the mobility of chemicals in the environment. This is well established in the peer

- reviewed literature (see for example St umm and Morgan, 1996) and illustrated in Figure 1 for arsenic and selenium.
Arsenic concentrations reported for CCW leachate in the Questionnaire are lower than the concentrations used in the 2010 risk assessment (for example, the arsenic median concentrat ion in the Questionnaire is about 20 times lower than in the 2010 risk assessment). This is simply a consequence of the fact that the values reported in the Questionnaire are not representative of leachate from CCW landfills and impoundments. Similarly to arsenic, concentration differences between the Questionnaire results and the scientific studies relied upon in the 2010 risk assessment are best explained by the lack of representativeness of the Questionnaire results. Concluding otherwise would rank scien tific studies behind self

- reporting by an interested party, and this without even the benefit of verification of the self

- reporting data and information
In summary, the pH values reported in the Questionnaire are not representative of CCW landfill and impo undment leachate composition and should therefore not be relied upon as such. TheEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 101 Questionnaire results show a narrow neutral pH distribution for water samples from CCW landfills and impoundments; these values are inconsistent with the much broader distrib ution reported for leachate end

- member compositions in the scientific studies. Under the neutral pH range reported by the Questionnaire, the solubility and mobility of arsenic, selenium and most metals is typically low (see for example Figure 1 and Stumm a nd Morgan, 1996). Outside of the neutral range, leachate concentrations are typically higher, often by orders of magnitudes. Combining the Questionnaire results for pH and contaminant concentrations with data from the scientific studies would bias the pH d istributions toward the neutral range and decrease the concentrations of contaminants in the risk assessment model input for leachate end

- member compositions. Doing so would be inappropriate for the purposes of the risk assessment.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 102Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 103Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 104Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 105Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 106 1 In the Questionnaire responses, leachate samples were typically not provided with a detailed description of the sample location. However, some of the descriptions provided include: “ditch along road where seepage collects”,

2 Data based on testing conducted on 40 fly ash samples from coal

- burning facilities. Leaching of these samples produced pH values ranging from 3.92 to 12.24 with a median of 10.30 (EPA, 2009). The distribution of these laboratory pH values is similar to the risk assessment surface impoundme nt data on the acidic end of the distribution and similar to the landfill data on the basic end. This data set is also different from both the landfill and surface impoundment data reported in the Questionnaire (p<0.05; t

- test).

3 Out of the 1042 coal co mbustion waste management units listed for coal burning electric utility facilities, only 54 have associated pH data.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 107 Commenter Name: Thomas Cmar Commenter Affiliation: Earthjustice, et al. Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 4723

- A2 Comment Excerpt Number: 1 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
Per your request, I have assessed the statement made by the U.S. Environmental Protection Agency (“EPA”) in the preamble to the proposed rule Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category (“ELG Rule”) to the effect that new data regarding landfill size from a 2010 industry survey of coal

- and petroleum coal

- fired power plants may prompt EPA to refine the screening assessment of risks posed by inhalation of fugitive dust from coal combustion waste landfills it prepared for the proposed rule Disposal of Coal Combustion Residuals from Electric Utilities Coal Combustion Residuals (“CCR Rule”). 1 

### My comments below rely and expand upon my previously prepared comments on the screening risk assessment. 2



### Fi rst, I would like to reiterate that the methodology employed by EPA’s 2009 screening risk assessment, entitled Inhalation of Fugitive Dust: A Screening Assessment of the Risks Posed by Coal Combustion Waste Landfills 3 

### , is substantively flawed and considera bly underestimates risks to receptors. Specifically, the 2009 screening risk assessment considers only one source of fugitive dust emissions from coal combustion waste, i.e. , wind erosion, and fails to assess the substantial emissions that occur during unl oading and grading of the waste as well as from trucks traveling on the deposited waste at the landfill. Further, the 2009 screening risk assessment only considers risks posed by inhalation of fugitive dust particulate matter emitted from coal combustion w aste landfills as measured by the potential violation of national ambient air quality standards; it does not assess constituent

- based risks, i.e. , the effects of toxic trace elements contained in coal combustion waste nor does it assess risks posed by radi oactive materials found in coal combustion wastes or potential hydrogen sulfide release. In addition, the screening risk assessment suffers from a number of methodological errors and improper assumptions, which I discussed in my previous letter.

Inasmuch a s EPA’s previous risk estimates for inhalation of fugitive dust particulate emissions caused by wind erosion may be affected by the new data from the 2010 industry survey regarding landfill size, I note the following:
1. EPA’s screening risk assessment ass umes for purposes of estimating controlled emissions that the area of a landfill that is operated in any given year can be calculated as its total surface area divided by an estimated 40

- year operating life. 4 

### This simplistic assumption is erroneous and und erestimates the active area of landfills subject to wind erosion:Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 108 - The assumption that a landfill is operated consistently over its lifetime such that each year only a fraction of the total landfill area is active is not consistent with actual operating p ractices. Landfills for coal combustion waste are built up in height over time ( see photographs below) and, at the end of their operating life, can be several hundred feet tall. For example, a proposed new landfill for the Prairie State Generating Company in Illinois would cover 750 acres and would be 290 feet tall; 5 

### data from EPA’s 2010 industry survey indicate that landfills can be up to 2040 feet high. 6 

### Thus, the active landfill area may be operated for many years until the final height is reached. Espec ially at smaller landfills, the active face can extend over the entire landfill during its entire operating life. Thus, the screening risk assessment’s assumption of consistent operation with a fraction of the landfill active each year is improper and not conservative. Instead, for purposes of estimating emissions and calculating risk, the screening assessment should conservatively assume that the entire landfill area is operated on unless more specific information about the active face is available from su rveys.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 109 - Even if the screening risk assessment’s methodology for calculating the area of a landfill that is operated in a given year had merit, its assumption of a uniform 40

- year operating life for all landfills is not supported. The estimated 40

- year operating life is taken from EPA’s 1998 Technical Background Document for the Supplemental Report to Congress on Remaining Fossil Fuel Combustion Wastes: Ground

- Water Pathway Human Health Risk Assessment . This document assumes 40 years of waste deposition at coal co mbustion residue landfills 7 

### for purposes of modeling human exposure to groundwater contaminated by the release of leachate from coal combustion waste landfills; therefore, the assumption was intentionally conservative. Relying on this conservatively high a ssumption to estimate the area in use at a landfill per year has the opposite effect in that it results in a small, i.e. , not as conservative, active area. In reality, the operating life of landfills is highly variable and dependent on several factors exte rnal to the landfill including generation and dispatch of the associated power plant, installation of pollution control equipment that may result in additional waste generation such as scrubbers, etc. in fact, EPA’s 2010 industry survey demonstrates the en ormous variability in the number of years landfills are operated. For example, landfills at Plants No. 1 and 1020 were retired after only 7 years of operation; at Plant No. 103, the landfill is projected to be retired after 20 years; and at Plant No. 70, t he landfill is projected to be closed after 63 years. 8 

### Thus, the assumption of a uniform operating life for the entire universe of landfills considered in the screening risk assessment (50th, 60th, 70th, 80th, and 90th percentile of landfill areas) is not realistic and introduces substantial errors when calculating the active acreage.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 110 - What’s more, the screening risk assessment only considers the 50th through 90th percentiles of size and 10th through 50th percentiles of distance to the nearest receptors an d excludes the maximum size and minimum distance to the nearest receptor as "too conservative to be considered reasonable." 9 

### To put this in perspective, the 90th percentile of landfill sizes used in the screening assessment is less than 300 acres, the maxi mum is 900 acres, more than three times larger. The reality is that this 900

- acre landfill exists, and without appropriate controls, results in much higher concentrations of PM10 at the 10th percentile distance to the nearest receptor than modeled by the s creening risk assessment based on a 90th percentile acreage.

- The screening risk assessment carries the above erroneous assumptions into its estimates of controlled emissions from landfills of various sizes (50th, 60th, 70th, 80th, and 90th percentile). T he screening risk assessment further compounds these errors by assuming that the uncontrolled area at a landfill, i.e. , the area that is in use, over a month, week, and day can be calculated by dividing the annual area by 12 months/year, 52 weeks/year, and 365 days/year, respectively. This is entirely unrealistic as the screening risk assessment essentially assumes 100 percent control of fugitive dust on all areas on which coal waste is not deposited during a given time period. While 100 percent control of fugitive dust can be achieved at close of a landfill, or a section of a landfill, by installation of a permanent soil cover and revegetation, this is not the case for measures that are employed on a short

- term basis such as watering, chemical dust suppress ants, or geosynthetic tarps, etc. Such measures, while effective to control fugitive dust to some extent, do not result in 100 percent control. Therefore, the screening risk assessment underestimates controlled emissions and, consequently, concentrations o f particulate matter in air.

2. EPA notes that the 2010 industry survey includes data on hundreds of surface impoundments that are generally smaller than the impoundments used to support the CCR Rule. EPA also notes that “reliance on [these] data ... may ha ve the potential to lower the CCR rule risk assessment results by as much as an order of magnitude.” 10 

### It is unclear whether the latter statement refers to the inhalation screening risk assessment or the 2009 Human and Ecological Risk Assessment of Coal Co mbustion Wastes which addresses risks via the groundwater pathway. For purposes of the inhalation screening risk assessment, surface impoundments must be kept separate from landfills because of their different operating characteristics and surface area exp osed to wind erosion. 11 

### Thus, the existence of numerous smaller surface impoundments should not affect the inhalation screening risk assessment from landfills.
Finally, EPA should take care not to solely rely on the results from the screening risk assessme nt in developing its recommendations for best 1nanagement practices to control fugitive dust at coal combustion waste landfills. Even if all methodological errors discussed above were corrected, the screening risk assessment still only provides an indicati on of whether ambient air quality standards for particulate matter may be violated; it is not a probabilistic risk assessment and does not estimate the inhalation risk due to the constituents of the coal ash. Instead of solely relying on the screening risk assessment, which relies on generic equations that were not developed for estimating emission factors from coal combustion waste landfills, EPA should collect monitoring data to test its theoretical assumptions. The reality is that there are numerous comp laints of substantial visible dust clouds emanating frotn coal combustion waste landfills and settling on nearby communities. Furthermore, EPA may not assume that "inactive" or "closed" landfills are sufficiently stabilized to achieve 100 percent control.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 111 1 Federal Register, Vol. 78, No. 110, June 7, 2013, 34432

- 34543.

2 Petra Pless, Pless Environmental, Inc., Letter to Eric Schaeffer, Environmental Integrity Project, Re: Review of EPA’s Inhalation of Fugitive Dust: A Screening Assessment of the Risks Posed by Coal Combustion Waste Landfills, November 16, 2010; available at http://www.regulations.gov/contentStreamer?objectId=0900006480cce734&d isposition=attachm ent&co ntentType=pdf

.
3 Inhalation of Fugitive Dust: A Screening Assessment of the Risks Posed by Coal Combustion Waste Landfills

4 Screening Risk Assessment, pp. 8 and 13.

5 Prairie State Coal Plant Tracker, Water Protection Groups Urge Illinois EPA to Reject Pollution Permit for Prairie State Plant, March 7, 2013; http://prairiestatecoalplant.org/category/coal

- ash

- landfill/.

6 U.S. Environmental Protection Agency, Excel workbook ‘Landfill_Dim.xlsx,’ see column ‘Ldfl_Ht’ for Plant ID No. 4384.

7 U.S. Environmental Protection Agency, Technical Background Document for the Supplemental Report to Congress on Remaining Fossil Fuel Combustion Wastes: Ground

- Water Pathway Human Health Risk Assessment, June 1998, p. 4

- 8; available at http://www.epa.gov/osw/nonhaz/industrial/special/fossil/ffc2_395.pdf.

8 Compare Excel workbook ‘Landfill_General.xlsx,’ worksheet ‘Landfill_General’, column ‘landfill_online_yr’ with Excel workbook ‘Landfill_Info.xlsx’, workshee t ‘Landfill_Info’, column ‘Ldfl_Clsd_Date’, Plant ID No. 1: year online: 1975, year closed: 1982; Plant ID 1020, Landfill

- 2: year online: 1993, year closed: 1995; Plant ID No. 103: year online: 2010, projected year closed: 2030; Plant ID No. 70: year onlin e 1987, projected year closed: 2050.

9 Screening Risk Assessment, p. 5.

10 Federal Register, Vol. 78, No. 110, June 7, 2013, 34432

- 34543.

11 For a discussion, see : U.S. Environmental Protection Agency, Introduction to Land Disposal Units, (40 CFR Parts 264/265, Subparts K, L, M, N), EPA530

- K

- 05

- 014, September 2005; available at http://w ww.epa.gov/wastes/inforesources/pubs/training/ldu05.pdf.

Commenter Name: E. Mueller Commenter Affiliation: Private Citizen Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 5113

- A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 112 Comment Excerpt Number: 1 External Review Flag: No External Review Externa l Review Incorporated into Response: No
Comment Excerpt:
Please regulate coal ash as toxic waste.

Commenter Name: Paul Ling Commenter Affiliation: Kansas City Power & Light Company Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 5406

- A2 Comment Excerpt Number: 18 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:

Harmonization of the final ELG and CCR rules
As EPA recognizes in the proposed steam electric ELG rule, the final steam ELG and CCR rule s will regulate or affect the same unit and/or activity. KCP&L appreciates EPA’s request for comment on its views for how to harmonize these two regulations. As explained in more detail in USWAG comments, KCP&L supports that harmonization of the two rules requires:

 

### Selection of the Subtitle D Prime option in the final CCR rule to enable CCR impoundments, that meet applicable groundwater monitoring and corrective action requirements, to remain operational and to continue to manage and receive specified wastewaters as contemplated under the steam electric ELGs proposal;

 

### Modification of the proposed Subtitle D Prime option to ensure application of only specified location restrictions to existing CCR surface impoundments to prevent the premature closure of such impoundments and to enable the impoundments to remain operational and to continue to manage and receive specified wastewaters as contemplated under the steam electric ELG Proposal;

 

### Modification of the proposed Subtitle D option to eliminate the requir ement that CCR units automatically commence closure upon the cessation of the receipt of CCR in order to prevent the premature closure of such units under the final CCR rule;

 

### Ensuring that any CCR rule implementation and corresponding compliance obligation s for surface impoundment modifications and/or closure not be triggered until a reasonable period of time after the applicable ELG requirements are clearly established for a particular facility in its revised NDPES permit; and

 

### Developing a mechanism to all ow for State implementation of the Subtitle D option

– as opposed to a self

- implementing regime

– in circumstances where a State is able to demonstrate to EPA that its CCR regulations are no less stringent than the final Subtitle D controls.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 113 Commenter Na me: C. Porter Commenter Affiliation: Private Citizen Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 5501

- A1 Comment Excerpt Number: 1 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
I urge the EP A to adopt the Subtitle C option under their proposed national standards for coal ash. I feel this is needed to protect human health and the environment. I believe that proper and safe waste disposal is a cost of doing any business.
Fly ash is a very toxic waste and should not be exempted from RCRA hazardous waste regulation, and should be treated according to it's toxic characteristics.

Commenter Name: William Matthews Commenter Affiliation: Cleco Corporation Document Control Number: EPA

- HQ

- OW

- 2009

- 0819

- 5550

- A1 Comment Excerpt Number: 7 External Review Flag: No External Review External Review Incorporated into Response: No
Comment Excerpt:
In addition, effective harmonization of the ELG and CCR rules requires that the Subtitle D Prime option be se lected by EPA for a final CCR rule. The Subtitle D Prime option is the only option in the CCR proposed rule that would provide the possibility that CCR impoundments that are in compliance with the applicable groundwater protection standards can continue op eration. The Subtitle D prime option would be consistent with the structure of the ELG Proposal, which includes the continued practice of managing bottom ash, fly ash, CCR leachate, and flue gas mercury wastewaters in impoundments that comply with existing BPT requirements.
If the Subtitle D Prime option is not acceptable to EPA, then EPA should at least remove the CCR rule Subtitle D mandatory synthetic liner retrofit

- or

- close requirements for existing impoundments that are complying with groundwater stan dards. Installing liners in impoundments is very expensive and synthetic liner requirements could force the closure of impoundments that manage CCRs. Many of these impoundments are also part of the plant wastewater treatment system for other items such as low volume wastewaters. Forced closure ofEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 114 these impoundments would be counter to the continued wastewater treatment function that the ELG proposal rule includes for surface impoundments.Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



### 10

- 11 5 

## Appendix C: Comment Response Index Listing the Comment Submittals Ordered by AffiliateEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

10-116

Commenter Affiliation Commenter Name DCN Alabama Power Company Tom DeLawrence EPA-HQ-OW-2009-0819-4489-A1 Alcoa Inc.'s Warrick Operations Dennis Wene EPA-HQ-OW-2009-0819-4765-A1 Alliant Energy Corporate Services, Inc. Steve Jackson EPA-HQ-OW-2009-0819-4516-A2

Ameren Energy Resources Company John C. Pozzo EPA-HQ-OW-2009-0819-4459-A1

American Coal Ash Association (ACAA) Thomas H. Adams EPA-HQ-OW-2009-0819-4511-A2

American Coalition for Clean Coal Electricity (ACCCE) Paul Bailey EPA-HQ-OW-2009-0819-4466-A1
American Electric Power System (AEP) John McManus EPA-HQ-OW-2009-0819-4448-A1

American Farmland Trust (AFT) Jimmy Daukas EPA-HQ-OW-2009-0819-4514-A2 American Forest & Paper Association (AF&PA) Jerry Schwartz EPA-HQ-OW-2009-0819-4656-A2
American Municipal Power, Inc. (AMP) Julia M. Blankenship EPA-HQ-OW-2009-0819-4670-A2

American Petroleum Institute (API) Roger E. Claff EPA-HQ-OW-2009-0819-4641-A1

American Public Power Association (APPA) Theresa Pugh EPA-HQ-OW-2009-0819-5140-A2

American Water Works Association (AWWA) Thomas W. Curtis EPA-HQ-OW-2009-0819-4478-A1

Anthracite Region Independent Power Producers Association (ARIPPA) Jeffrey A. McNelly EPA-HQ-OW-2009-0819-4453-A1

Appalachian Voices S. Fischer EPA-HQ-OW-2009-0819-4479 Appalachian Voices S. Garcia EPA-HQ-OW-2009-0819-4481 Appalachian Voices D. Smith EPA-HQ-OW-2009-0819-4482 Appalachian Voices P. Ciaffone EPA-HQ-OW-2009-0819-4494 Appalachian Voices Appalachian Voices EPA-HQ-OW-2009-0819-4501-A1 Arizona Public Service Company Chas Spell EPA-HQ-OW-2009-0819-4303-A2 Association of Clean Water Administrators (ACWA) Shellie Chard-McClary EPA-HQ-OW-2009-0819-4535-A2

Association of Electric Companies of Texas, Inc. (AECT) John Fainter, Jr. EPA-HQ-OW-2009-0819-4669-A2

Association of State Drinking Water Administration (ASDWA) James D. Taft EPA-HQ-OW-2009-0819-4668-A2

Audubon Society of Rhode Island Eugenia Marks, Senior Director of Policy, Audubon EPA-HQ-OW-2009-0819-4245-A1

Basin Electric Power Cooperative Claire M. Olson EPA-HQ-OW-2009-0819-4666-A2 BHP Navajo Coal Company (BNCC) and San Juan Coal Company (SJCC) Paul Nazaryk EPA-HQ-OW-2009-0819-4380-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

10-117

Commenter Affiliation Commenter Name DCN Big Rivers Electric Corporation (BREC) Bradley Coyle EPA-HQ-OW-2009-0819-4664-A2

Bison Engineering, Inc. Grant Rodway EPA-HQ-OW-2009-0819-4463-A1 Black Hills Corporation (BHC) Black Hills Corporation (BHC) EPA-HQ-OW-2009-0819-4184-A1 Buckeye Power, Inc. Patrick O’Loughlin EPA-HQ-OW-2009-0819-4183-A2 Center for Biological Diversity Miyoko Sakashita EPA-HQ-OW-2009-0819-4178-A1 CertainTeed Corporation Lauren P. Alterman EPA-HQ-OW-2009-0819-4660-A2 Chattahoochee Riverkeeper Juliet Cohen EPA-HQ-OW-2009-0819-4671-A2 Chesapeake Bay Foundation Beth L. McGee EPA-HQ-OW-2009-0819-4513-A2 Chesapeake Climate Action Network Diana Dascala-Joffe EPA-HQ-OW-2009-0819-3920-A9

Citizens Coal Council and the Wabash Riverkeeper Jeff Stant, Patricia Schuba and Rae Schnapp EPA-HQ-OW-2009-0819-4657-A2

Citizens Coal Council and the Wabash Riverkeeper Jeff Stant, Patricia Schuba and Rae Schnapp EPA-HQ-OW-2009-0819-4657-A6

Citizens Coal Council and the Wabash Riverkeeper Jeff Stant, Patricia Schuba and Rae Schnapp EPA-HQ-OW-2009-0819-4657-A7
City Public Service of San Antonio (CPS Energy) Doris Cooksey EPA-HQ-OW-2009-0819-4283-A1

City Utilities of Springfield, Missouri (CU) David M. Fraley EPA-HQ-OW-2009-0819-4382-A1
City Water, Light and Power (CWLP) P. J. Becker EPA-HQ-OW-2009-0819-4349-A2

Clean Water Action T. Rhodes EPA-HQ-OW-2009-0819-4680-A2 Clean Water Action - Minnesota et al. Deanna White EPA-HQ-OW-2009-0819-4681-A2

Clean Water Action (CWA) Jennifer Peters EPA-HQ-OW-2009-0819-3920-A21 Clean Water Action (CWA) Lynn Thorp EPA-HQ-OW-2009-0819-4451-A1 Clean Water Action et al. Becky Smith EPA-HQ-OW-2009-0819-4548-A1 Clean Water Action et al. Tom Hoffman EPA-HQ-OW-2009-0819-4592-A2 Clean Water Action et al. Andrew Fellows EPA-HQ-OW-2009-0819-4659-A2 Clean Water Action, et al. Andy Galli EPA-HQ-OW-2009-0819-4663-A2 Clean Wisconsin Pamela Ritger EPA-HQ-OW-2009-0819-4632-A1 Cleco Corporation William Matthews EPA-HQ-OW-2009-0819-5550-A1 Clyde Bergemann Power Group (CBPG) Gary D. Mooney EPA-HQ-OW-2009-0819-2927-A1

Colorado Springs Utilities Vicki Card EPA-HQ-OW-2009-0819-4483-A1 Connecticut Clean Water Action et al. Roger Smith EPA-HQ-OW-2009-0819-4678-A2

Consolidated Edison Company of New York, Inc. Randolph S. Price EPA-HQ-OW-2009-0819-4468-A1

Consumers Energy Company Gary A. Dawson EPA-HQ-OW-2009-0819-4452-A2 Consumers Energy Company Gary A. Dawson EPA-HQ-OW-2009-0819-4452-A3Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

10-118

Commenter Affiliation Commenter Name DCN Council of Industrial Boiler Owners (CIBO) Lisa M. Jaeger EPA-HQ-OW-2009-0819-4486-A2
Dayton Power & Light Company (DP&L) JoAnne Rau EPA-HQ-OW-2009-0819-4470-A1

Dominion Resources, Inc. Pamela F. Faggert EPA-HQ-OW-2009-0819-4631-A1 Dominion Resources, Inc. Pamela F. Faggert EPA-HQ-OW-2009-0819-4675-A27 DTE Energy Company Dennis Leonard EPA-HQ-OW-2009-0819-4517-A2 Duke Energy Cari Boyce EPA-HQ-OW-2009-0819-4261-A2 Duke Energy Cari Boyce EPA-HQ-OW-2009-0819-4305-A2 Duke Energy Cari Boyce EPA-HQ-OW-2009-0819-4305-A3 Dynegy Inc. Dean Ellis EPA-HQ-OW-2009-0819-4491-A1 Earthjustice, et al. Thomas Cmar EPA-HQ-OW-2009-0819-4684-A1 Earthjustice, et al. Thomas Cmar EPA-HQ-OW-2009-0819-4686-A1 Earthjustice, et al. Thomas Cmar EPA-HQ-OW-2009-0819-4687-A10 Earthjustice, et al. Thomas Cmar EPA-HQ-OW-2009-0819-4702-A7 Earthjustice, et al. Thomas Cmar EPA-HQ-OW-2009-0819-4703-A7 Earthjustice, et al. Thomas Cmar EPA-HQ-OW-2009-0819-4704-A1 Earthjustice, et al. Thomas Cmar EPA-HQ-OW-2009-0819-4723-A1 Earthjustice, et al. Thomas Cmar EPA-HQ-OW-2009-0819-4723-A2 Earthjustice, et al. Thomas Cmar EPA-HQ-OW-2009-0819-4724-A2 East Kentucky Power Cooperative, Inc. (EKPC) Jerry Purvis EPA-HQ-OW-2009-0819-4455-A1

Edison Electric Institute (EEI) Quinlan J. Shea III EPA-HQ-OW-2009-0819-4487-A1 Electric Power Generation Association (EPGA) Jacob G. Smeltz EPA-HQ-OW-2009-0819-4450-A1

Electric Power Research Institute (EPRI) Paul Chu EPA-HQ-OW-2009-0819-4499-A1

Entergy Corporation Chuck D. Barlow EPA-HQ-OW-2009-0819-4519-A2 Environment Council of Rhode Island Jamie Rhodes EPA-HQ-OW-2009-0819-4034-A2
Environmental Integrity Project (EIP) et al. J. Duggan EPA-HQ-OW-2009-0819-5488-A2

Environmental Integrity Project et al. Eric Schaeffer EPA-HQ-OW-2009-0819-4761-A2

Exelon Corporation Amy Trojecki EPA-HQ-OW-2009-0819-4662-A2 FirstEnergy Corp. Raymond L. Evans EPA-HQ-OW-2009-0819-4677-A2 Florida Electric Power Coordinating Group James S. Alves EPA-HQ-OW-2009-0819-4474-A2

Frontier Water Systems Tim Pickett EPA-HQ-OW-2009-0819-4533-A2 GEA EGI Contracting/Engineering Co. Ltd. Lili Kranitz EPA-HQ-OW-2009-0819-5093-A2

General Electric Company J. Kain EPA-HQ-OW-2009-0819-5489-A2 Georgia Power Company Ron Shipman EPA-HQ-OW-2009-0819-4447-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

10-119

Commenter Affiliation Commenter Name DCN Great River Energy (GRE) Erik Silvola EPA-HQ-OW-2009-0819-4572-A1 Gulf Power Company James S. Alves EPA-HQ-OW-2009-0819-4474-A1 Gulf Power Company J. S. Alves EPA-HQ-OW-2009-0819-5490-A2 Gypsum Association Jessica Wicha EPA-HQ-OW-2009-0819-4456-A1 Holland Board of Public Works Ted Siler EPA-HQ-OW-2009-0819-4282-A2 Homer City Generation, L.P David Y. Chung EPA-HQ-OW-2009-0819-5552-A2 Hoosier Energy Rural Electric Cooperative Michalene Reilly EPA-HQ-OW-2009-0819-4471-A1
Independence Power & Light (IPL) Eric Holder EPA-HQ-OW-2009-0819-4180-A2 Indiana Department of Environmental Management (IDEM) Thomas W. Easterly EPA-HQ-OW-2009-0819-5553-A2

Indianapolis Power & Light Company (IPL) Nysa Hogue EPA-HQ-OW-2009-0819-4454-A2

Institute for Energy Research Daniel Simmons EPA-HQ-OW-2009-0819-4473-A1 Institute of Clean Air Companies (ICAC) Betsy Natz EPA-HQ-OW-2009-0819-4549-A1

International Brotherhood of Boilermakers (IBB) Cecile M. Conroy EPA-HQ-OW-2009-0819-4557-A1

Kansas City Board of Public Utilities Dennis Lane EPA-HQ-OW-2009-0819-4564-A1

Kansas City Power & Light Company Paul Ling EPA-HQ-OW-2009-0819-5406-A2

Kansas Department of Health and Environment (KDHE) Donald R. Carlson EPA-HQ-OW-2009-0819-3922-A1

Kiwanis Club of Dearborn A. H. Holmes EPA-HQ-OW-2009-0819-5472-A1 Labadie Environmental Organization Patricia Schuba EPA-HQ-OW-2009-0819-3920-A30

Los Angeles Department of Water and Power (LADWP) Katherine Rubin EPA-HQ-OW-2009-0819-4658-A2

Louisiana Department of Environmental Quality S. L. Phillips EPA-HQ-OW-2009-0819-5509-A2
Lower Colorado River Authority (LCRA) Henry Eby EPA-HQ-OW-2009-0819-4488-A1

Luminant Kim Mireles EPA-HQ-OW-2009-0819-4614-A1 Magaldi Power Fulvio Bassetti EPA-HQ-OW-2009-0819-4177-A5 Marrone Bio Innovations Keith Pitts EPA-HQ-OW-2009-0819-4033-A2 Mercatus Center at George Mason University R. W. Greene EPA-HQ-OW-2009-0819-3411-A1

Michigan Clean Water Action et al. Roger Stegmier EPA-HQ-OW-2009-0819-4682-A2 Michigan Department of Environmental Quality W. Creal EPA-HQ-OW-2009-0819-5510-A2Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Michigan Municipal Electric Association (MMEA) Jim Weeks EPA-HQ-OW-2009-0819-4767-A2

MidAmerican Energy Holdings Company Cathy S. Woollums EPA-HQ-OW-2009-0819-4495-A1

Midwest Generation, LLC. Basil G. Constantelos EPA-HQ-OW-2009-0819-4464-A1 Milwaukee Riverkeeper Cheryl Nenn EPA-HQ-OW-2009-0819-3920-A7 Minnesota Division Izaak Walton League of America Barry Drazkowski EPA-HQ-OW-2009-0819-4472-A1

Minnesota Pollution Control Agency (MPCA) Jeff Udd EPA-HQ-OW-2009-0819-4606-A1

Minnesota Pollution Control Agency (MPCA) Jeff Udd EPA-HQ-OW-2009-0819-4775-A1

Minnesota Power (ALLETE) Michael G. Cashin EPA-HQ-OW-2009-0819-4768-A2 Minnesota Power (MP) Michael G. Cashin EPA-HQ-OW-2009-0819-4484-A1 Minnkota Power Company, Inc. John T. Graves EPA-HQ-OW-2009-0819-4462-A1 Mississippi Power Company C. R. Berry EPA-HQ-OW-2009-0819-4381-A1 Missouri Department of Natural Resources J. Madras EPA-HQ-OW-2009-0819-4383-A1

Missouri Joint Municipal Electric Utility Commission F. Gilzow EPA-HQ-OW-2009-0819-5517-A2

Missouri Joint Municipal Electric Utility Commission (MJMEUC) Floyd Gilzow EPA-HQ-OW-2009-0819-4576-A1

Montana-Dakota Utilities Co. Chad Miller EPA-HQ-OW-2009-0819-4457-A1 National Association of Clean Water Agencies (NACWA) Cynthia A. Finley EPA-HQ-OW-2009-0819-4507-A2

National Rural Electric Cooperative Association (NRECA) Dorothy Kellogg and Michael Leitman EPA-HQ-OW-2009-0819-4565

National Rural Electric Cooperative Association (NRECA) Dorothy Kellogg and Michael Leitman EPA-HQ-OW-2009-0819-4565-A1

Natural Resources Defense Council (NRDC) Becky Hayat EPA-HQ-OW-2009-0819-4490-A1

Nebraska Public Power District (NPPD) Joe L. Citta EPA-HQ-OW-2009-0819-4310-A1

New Jersey Environmental Federation/Clean Water Action et al. David Pringle EPA-HQ-OW-2009-0819-4509-A2

NextEra Energy, Inc. (NEE) Ronald H. Hix EPA-HQ-OW-2009-0819-4461-A1 North Carolina Conservation Network (NCCN) Nadia L. Luhr EPA-HQ-OW-2009-0819-4480-A1

Northern Indiana Public Service Company (NIPSCO) Daniel K. Plath EPA-HQ-OW-2009-0819-4508-A2

NRG Energy, Inc. Stephen M. Frank EPA-HQ-OW-2009-0819-4510-A2 Oglethorpe Power Corporation Douglas J. Fulle EPA-HQ-OW-2009-0819-4449-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Ohio River Valley Water Sanitation Commission (ORSANCO) Peter A. Tennant EPA-HQ-OW-2009-0819-4512-A2

Ohio Valley Electric Corporation (OVEC) J. Michael Brown EPA-HQ-OW-2009-0819-4182-A2

Oklahoma Department of Environmental Quality (DEQ) Shellie Chard-McClary EPA-HQ-OW-2009-0819-4181-A2

Omaha Public Power District (OPPD) Patrick Finigan EPA-HQ-OW-2009-0819-4529-A1

Otter Trail Power Company Mark Thoma EPA-HQ-OW-2009-0819-4446-A1 Owensboro Municipal Utilities (OMU) Elmer Smith Station (ESS) Kevin D. Frizzell EPA-HQ-OW-2009-0819-4683-A2
Pennsylvania Coal Association (PCA) Josie Gaskey EPA-HQ-OW-2009-0819-4515-A2

Pennsylvania Department of Environmental Protection Kelly Jean Heffner EPA-HQ-OW-2009-0819-4811-A1

PowerSouth Energy Cooperative Tom DeLawrence EPA-HQ-OW-2009-0819-4460-A1 PPL Services Corporation Nancy A. Evans EPA-HQ-OW-2009-0819-4348-A2 Prairie State Generating Company, LLC (PSGC) Glen Porter EPA-HQ-OW-2009-0819-4651-A2

Private Citizen S. Russell EPA-HQ-OW-2009-0819-2265 Private Citizen P. Trei EPA-HQ-OW-2009-0819-2267-A1 Private Citizen O. Devgan EPA-HQ-OW-2009-0819-2268-A1 Private Citizen M. Wollitz-Dooley EPA-HQ-OW-2009-0819-2269-A1 Private Citizen M. Kawalek EPA-HQ-OW-2009-0819-2270-A1 Private Citizen J. Gintzler EPA-HQ-OW-2009-0819-2271-A1 Private Citizen J. Bigger EPA-HQ-OW-2009-0819-2272-A1 Private Citizen C. McFall EPA-HQ-OW-2009-0819-2273-A1 Private Citizen A. Muchnick EPA-HQ-OW-2009-0819-2274-A1 Private Citizen L. Frogge EPA-HQ-OW-2009-0819-2275-A1 Private Citizen S. Edelman EPA-HQ-OW-2009-0819-2276-A1 Private Citizen B. and K. Swanson EPA-HQ-OW-2009-0819-2277-A1 Private Citizen G. S. Clemson EPA-HQ-OW-2009-0819-2278-A1 Private Citizen J. Shireley EPA-HQ-OW-2009-0819-2279-A1 Private Citizen D. James EPA-HQ-OW-2009-0819-2281-A1 Private Citizen M. C. Hernandez EPA-HQ-OW-2009-0819-2282-A1 Private Citizen H. Olson Hull EPA-HQ-OW-2009-0819-2283-A1 Private Citizen F. Calhoun EPA-HQ-OW-2009-0819-2284-A1 Private Citizen A. Bowen EPA-HQ-OW-2009-0819-2285-A1 Private Citizen A. Wilson EPA-HQ-OW-2009-0819-2286-A1 Private Citizen N. Ringdahl EPA-HQ-OW-2009-0819-2287-A1 Private Citizen S. Flocken EPA-HQ-OW-2009-0819-2288-A1 Private Citizen R. Hughes EPA-HQ-OW-2009-0819-2289-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen J. Petty EPA-HQ-OW-2009-0819-2290-A1 Private Citizen A. Winkle EPA-HQ-OW-2009-0819-2291-A1 Private Citizen R. Grimm EPA-HQ-OW-2009-0819-2292-A1 Private Citizen B. Denneen EPA-HQ-OW-2009-0819-2293-A1 Private Citizen P. Mcaloon EPA-HQ-OW-2009-0819-2294-A1 Private Citizen L. Szabo EPA-HQ-OW-2009-0819-2295-A1 Private Citizen N. Huber EPA-HQ-OW-2009-0819-2296-A1 Private Citizen J. Dalloo EPA-HQ-OW-2009-0819-2297-A1 Private Citizen P. Mullen EPA-HQ-OW-2009-0819-2298-A1 Private Citizen C. Moix EPA-HQ-OW-2009-0819-2299-A1 Private Citizen K. Cary EPA-HQ-OW-2009-0819-2300-A1 Private Citizen R. Hoekstra EPA-HQ-OW-2009-0819-2301-A1 Private Citizen A. Seiman EPA-HQ-OW-2009-0819-2302-A1 Private Citizen J. Harrington EPA-HQ-OW-2009-0819-2303-A1 Private Citizen B. Humphrey EPA-HQ-OW-2009-0819-2304-A1 Private Citizen D. Heckman EPA-HQ-OW-2009-0819-2305-A1 Private Citizen J. Hanniver EPA-HQ-OW-2009-0819-2306-A1 Private Citizen R. Erickson EPA-HQ-OW-2009-0819-2307-A1 Private Citizen A. Troeh EPA-HQ-OW-2009-0819-2308-A1 Private Citizen L. Kelemen EPA-HQ-OW-2009-0819-2309-A1 Private Citizen E. Dovichin EPA-HQ-OW-2009-0819-2310-A1 Private Citizen B. Mabry EPA-HQ-OW-2009-0819-2311-A1 Private Citizen M. Hughes EPA-HQ-OW-2009-0819-2312-A1 Private Citizen K. Schmidt EPA-HQ-OW-2009-0819-2314-A1 Private Citizen K. Anker EPA-HQ-OW-2009-0819-2315-A1 Private Citizen B. Turnwald EPA-HQ-OW-2009-0819-2316-A1 Private Citizen B. Armbruster EPA-HQ-OW-2009-0819-2317-A1 Private Citizen E. and R. Deming EPA-HQ-OW-2009-0819-2318-A1 Private Citizen T. Hopkins EPA-HQ-OW-2009-0819-2319-A1 Private Citizen J. Dickison EPA-HQ-OW-2009-0819-2320-A1 Private Citizen J. Castiano EPA-HQ-OW-2009-0819-2321-A1 Private Citizen J.M. Petruncio EPA-HQ-OW-2009-0819-2322-A1 Private Citizen R. J. Rodgers EPA-HQ-OW-2009-0819-2323-A1 Private Citizen M. Lombard EPA-HQ-OW-2009-0819-2324-A1 Private Citizen F. Prael EPA-HQ-OW-2009-0819-2325-A1 Private Citizen M. Sherwood EPA-HQ-OW-2009-0819-2326-A1 Private Citizen P. Swartz EPA-HQ-OW-2009-0819-2327-A1 Private Citizen E. Schousboe EPA-HQ-OW-2009-0819-2328-A1 Private Citizen D. Higbee-Sudyka EPA-HQ-OW-2009-0819-2330-A1 Private Citizen K. Schafer EPA-HQ-OW-2009-0819-2331-A1 Private Citizen C. Buck EPA-HQ-OW-2009-0819-2332-A1 Private Citizen C. Gordon EPA-HQ-OW-2009-0819-2333-A1 Private Citizen D. Spicer EPA-HQ-OW-2009-0819-2334-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen N. Frazer EPA-HQ-OW-2009-0819-2335-A1 Private Citizen G. Williams EPA-HQ-OW-2009-0819-2336-A1 Private Citizen M. Taylor EPA-HQ-OW-2009-0819-2337-A1 Private Citizen E. Seyster EPA-HQ-OW-2009-0819-2338-A1 Private Citizen T. L. Davis EPA-HQ-OW-2009-0819-2339-A1 Private Citizen M. Schlecht EPA-HQ-OW-2009-0819-2340-A1 Private Citizen W. Bowman EPA-HQ-OW-2009-0819-2341-A1 Private Citizen M. Goodwiin EPA-HQ-OW-2009-0819-2342-A1 Private Citizen W. Heiland EPA-HQ-OW-2009-0819-2344-A1 Private Citizen T. Kuna-Jacob EPA-HQ-OW-2009-0819-2347-A1 Private Citizen C. Dutcher EPA-HQ-OW-2009-0819-2348-A1 Private Citizen A. Lian EPA-HQ-OW-2009-0819-2349-A1 Private Citizen J. Hunter EPA-HQ-OW-2009-0819-2350-A1 Private Citizen W. Scott EPA-HQ-OW-2009-0819-2351-A1 Private Citizen J. Schwartz EPA-HQ-OW-2009-0819-2352-A1 Private Citizen C. Kennedy EPA-HQ-OW-2009-0819-2353-A1 Private Citizen K. Erkiletian EPA-HQ-OW-2009-0819-2354-A1 Private Citizen H. and A. Shapiro EPA-HQ-OW-2009-0819-2355-A1 Private Citizen R. Schamel EPA-HQ-OW-2009-0819-2356-A1 Private Citizen E. ONeill EPA-HQ-OW-2009-0819-2357-A1 Private Citizen T. Duff EPA-HQ-OW-2009-0819-2358-A1 Private Citizen K. Lawson EPA-HQ-OW-2009-0819-2359-A1 Private Citizen M. Schramm EPA-HQ-OW-2009-0819-2360-A1 Private Citizen A. Burns EPA-HQ-OW-2009-0819-2361-A1 Private Citizen P. Bidlake EPA-HQ-OW-2009-0819-2362-A1 Private Citizen E. Danson EPA-HQ-OW-2009-0819-2363-A1 Private Citizen J. Black EPA-HQ-OW-2009-0819-2364-A1 Private Citizen D. Miller EPA-HQ-OW-2009-0819-2365-A1 Private Citizen W. Johnson EPA-HQ-OW-2009-0819-2366-A1 Private Citizen C. C. Herman EPA-HQ-OW-2009-0819-2367-A1 Private Citizen K. Cox EPA-HQ-OW-2009-0819-2368-A1 Private Citizen V. Cotts EPA-HQ-OW-2009-0819-2369-A1 Private Citizen J. Rogerson EPA-HQ-OW-2009-0819-2370-A1 Private Citizen W. Bieganek EPA-HQ-OW-2009-0819-2371-A1 Private Citizen G. B. Gregory EPA-HQ-OW-2009-0819-2372-A1 Private Citizen G. Paudler EPA-HQ-OW-2009-0819-2373-A1 Private Citizen L. J. Foster EPA-HQ-OW-2009-0819-2374-A1 Private Citizen J. Dunlap EPA-HQ-OW-2009-0819-2375-A1 Private Citizen B. Ignatowski EPA-HQ-OW-2009-0819-2376-A1 Private Citizen M. Monroe EPA-HQ-OW-2009-0819-2378-A1 Private Citizen D. Singer EPA-HQ-OW-2009-0819-2379-A1 Private Citizen B. J. Searcy EPA-HQ-OW-2009-0819-2380-A1 Private Citizen L. Vanis EPA-HQ-OW-2009-0819-2381-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen J. Byrnes EPA-HQ-OW-2009-0819-2382-A1 Private Citizen J. and M. Payne EPA-HQ-OW-2009-0819-2383-A1 Private Citizen K. Carlson EPA-HQ-OW-2009-0819-2384-A1 Private Citizen M. Higgins EPA-HQ-OW-2009-0819-2385-A1 Private Citizen M. Grossmann EPA-HQ-OW-2009-0819-2386-A1 Private Citizen W. Dietrich EPA-HQ-OW-2009-0819-2387-A1 Private Citizen L. Hays EPA-HQ-OW-2009-0819-2388-A1 Private Citizen S. Stahlhut EPA-HQ-OW-2009-0819-2389-A1 Private Citizen C. Villagomez EPA-HQ-OW-2009-0819-2390-A1 Private Citizen M. N. (Carole) Madan EPA-HQ-OW-2009-0819-2391-A1 Private Citizen R. Loeser EPA-HQ-OW-2009-0819-2392-A1 Private Citizen J. Weinstein EPA-HQ-OW-2009-0819-2393-A1 Private Citizen V. Villacorta EPA-HQ-OW-2009-0819-2394-A1 Private Citizen J. Walker EPA-HQ-OW-2009-0819-2395-A1 Private Citizen S. Tkacz EPA-HQ-OW-2009-0819-2396-A1 Private Citizen G. Ray EPA-HQ-OW-2009-0819-2397-A1 Private Citizen M. Scoble EPA-HQ-OW-2009-0819-2398-A1 Private Citizen T. Crayne EPA-HQ-OW-2009-0819-2399-A1 Private Citizen J. and W. MacDonald EPA-HQ-OW-2009-0819-2400-A1 Private Citizen L. Brimecombe EPA-HQ-OW-2009-0819-2401-A1 Private Citizen B. OReilly EPA-HQ-OW-2009-0819-2402-A1 Private Citizen M. Marquardt EPA-HQ-OW-2009-0819-2403-A1 Private Citizen M. Falcone EPA-HQ-OW-2009-0819-2404-A1 Private Citizen M. Olafson EPA-HQ-OW-2009-0819-2407-A1 Private Citizen P. Rosner EPA-HQ-OW-2009-0819-2409-A1 Private Citizen T. Barnes EPA-HQ-OW-2009-0819-2410-A1 Private Citizen A. Craig EPA-HQ-OW-2009-0819-2411-A1 Private Citizen G. Rowntree EPA-HQ-OW-2009-0819-2412-A1 Private Citizen S. Flick EPA-HQ-OW-2009-0819-2413-A1 Private Citizen C. Tricarico EPA-HQ-OW-2009-0819-2414-A1 Private Citizen J. Horch EPA-HQ-OW-2009-0819-2415-A1 Private Citizen A. Stevens EPA-HQ-OW-2009-0819-2416-A1 Private Citizen B. Wishingrad EPA-HQ-OW-2009-0819-2417-A1 Private Citizen A. Kniskern EPA-HQ-OW-2009-0819-2418-A1 Private Citizen L. Hunt EPA-HQ-OW-2009-0819-2419-A1 Private Citizen D. Berg EPA-HQ-OW-2009-0819-2420-A1 Private Citizen C. Limpert EPA-HQ-OW-2009-0819-2421-A1 Private Citizen L. Anderson EPA-HQ-OW-2009-0819-2422-A1 Private Citizen S. Hauter EPA-HQ-OW-2009-0819-2423-A1 Private Citizen V. Brownfield EPA-HQ-OW-2009-0819-2424-A1 Private Citizen S. Young EPA-HQ-OW-2009-0819-2425-A1 Private Citizen J. Candy EPA-HQ-OW-2009-0819-2426-A1 Private Citizen N. Flaherty EPA-HQ-OW-2009-0819-2427-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen D. Black EPA-HQ-OW-2009-0819-2428-A1 Private Citizen M. Allen EPA-HQ-OW-2009-0819-2429-A1 Private Citizen J. McConnell EPA-HQ-OW-2009-0819-2430-A1 Private Citizen L. Burgess EPA-HQ-OW-2009-0819-2432-A1 Private Citizen M. Drake EPA-HQ-OW-2009-0819-2433-A1 Private Citizen J. Franzen EPA-HQ-OW-2009-0819-2434-A1 Private Citizen G. Vaccaro EPA-HQ-OW-2009-0819-2435-A1 Private Citizen R. Garber EPA-HQ-OW-2009-0819-2436-A1 Private Citizen D. Boots EPA-HQ-OW-2009-0819-2438-A1 Private Citizen C. Landau EPA-HQ-OW-2009-0819-2439-A1 Private Citizen K. Weber EPA-HQ-OW-2009-0819-2440-A1 Private Citizen Sierra Club Mass Email EPA-HQ-OW-2009-0819-2441-A1 Private Citizen G. Anderson EPA-HQ-OW-2009-0819-2443-A1 Private Citizen E. Perez EPA-HQ-OW-2009-0819-2445-A1 Private Citizen C. and P. Norris EPA-HQ-OW-2009-0819-2446-A1 Private Citizen J. Adams EPA-HQ-OW-2009-0819-2447-A1 Private Citizen P. and J. Richey EPA-HQ-OW-2009-0819-2449-A1 Private Citizen R. Conn EPA-HQ-OW-2009-0819-2450-A1 Private Citizen J. Caro EPA-HQ-OW-2009-0819-2451-A1 Private Citizen E. Swenson EPA-HQ-OW-2009-0819-2452-A1 Private Citizen K. Oxnard EPA-HQ-OW-2009-0819-2453-A1 Private Citizen D. Weber EPA-HQ-OW-2009-0819-2454-A1 Private Citizen K. Kilchenstein EPA-HQ-OW-2009-0819-2455-A1 Private Citizen D. Greenfader EPA-HQ-OW-2009-0819-2456-A1 Private Citizen L. Johnson EPA-HQ-OW-2009-0819-2457-A1 Private Citizen J. Forsberg EPA-HQ-OW-2009-0819-2458-A1 Private Citizen M. Perri EPA-HQ-OW-2009-0819-2459-A1 Private Citizen A. Mitchell EPA-HQ-OW-2009-0819-2460-A1 Private Citizen J. Robertson EPA-HQ-OW-2009-0819-2461-A1 Private Citizen P. Collord EPA-HQ-OW-2009-0819-2462-A1 Private Citizen J. Harland EPA-HQ-OW-2009-0819-2463-A1 Private Citizen S. Dunne EPA-HQ-OW-2009-0819-2464-A1 Private Citizen T. Wagner EPA-HQ-OW-2009-0819-2465-A1 Private Citizen R. Grace EPA-HQ-OW-2009-0819-2466-A1 Private Citizen W. Ragar EPA-HQ-OW-2009-0819-2467-A1 Private Citizen A. Peat EPA-HQ-OW-2009-0819-2469-A1 Private Citizen B. Ryden EPA-HQ-OW-2009-0819-2470-A1 Private Citizen M. Hornbostel EPA-HQ-OW-2009-0819-2471-A1 Private Citizen R. Luczyski EPA-HQ-OW-2009-0819-2472-A1 Private Citizen S. Toland EPA-HQ-OW-2009-0819-2473-A1 Private Citizen E. Craig EPA-HQ-OW-2009-0819-2474-A1 Private Citizen F. Benson EPA-HQ-OW-2009-0819-2476-A1 Private Citizen E. Gendron EPA-HQ-OW-2009-0819-2477-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen L. Sims EPA-HQ-OW-2009-0819-2478-A1 Private Citizen C. Opderbeck EPA-HQ-OW-2009-0819-2479-A1 Private Citizen R. Arizmendi EPA-HQ-OW-2009-0819-2480-A1 Private Citizen F. Muraski-Stotz EPA-HQ-OW-2009-0819-2482-A1 Private Citizen T. Rakow EPA-HQ-OW-2009-0819-2483-A1 Private Citizen J. Fleming EPA-HQ-OW-2009-0819-2484-A1 Private Citizen C. A. Rittenhouse EPA-HQ-OW-2009-0819-2485-A1 Private Citizen A. Spencer EPA-HQ-OW-2009-0819-2486-A1 Private Citizen J. Mckeel EPA-HQ-OW-2009-0819-2488-A1 Private Citizen B. Lockwood EPA-HQ-OW-2009-0819-2489-A1 Private Citizen B. Krasen EPA-HQ-OW-2009-0819-2490-A1 Private Citizen J. Johnson EPA-HQ-OW-2009-0819-2491-A1 Private Citizen C. Fowler EPA-HQ-OW-2009-0819-2492-A1 Private Citizen A. Edwardson EPA-HQ-OW-2009-0819-2494-A1 Private Citizen M. Sunderland EPA-HQ-OW-2009-0819-2495-A1 Private Citizen T. Halbig EPA-HQ-OW-2009-0819-2496-A1 Private Citizen L. Lucas EPA-HQ-OW-2009-0819-2497-A1 Private Citizen D. Miller EPA-HQ-OW-2009-0819-2498-A1 Private Citizen E. Robinson EPA-HQ-OW-2009-0819-2499-A1 Private Citizen K. Chabot EPA-HQ-OW-2009-0819-2500-A1 Private Citizen S. Kent EPA-HQ-OW-2009-0819-2501-A1 Private Citizen K. Gleeson EPA-HQ-OW-2009-0819-2502-A1 Private Citizen E. Healy EPA-HQ-OW-2009-0819-2504-A1 Private Citizen M. E. Mellon EPA-HQ-OW-2009-0819-2505-A1 Private Citizen W. Fike EPA-HQ-OW-2009-0819-2507-A1 Private Citizen M. Schmerling EPA-HQ-OW-2009-0819-2509-A1 Private Citizen N. Tierney EPA-HQ-OW-2009-0819-2512-A1 Private Citizen M. Bird EPA-HQ-OW-2009-0819-2513-A1 Private Citizen D. Sherman EPA-HQ-OW-2009-0819-2514-A1 Private Citizen B. Seawell EPA-HQ-OW-2009-0819-2516-A1 Private Citizen M. Kingston EPA-HQ-OW-2009-0819-2517-A1 Private Citizen E. Averill EPA-HQ-OW-2009-0819-2518-A1 Private Citizen N. Corlach EPA-HQ-OW-2009-0819-2519-A1 Private Citizen H. Ison EPA-HQ-OW-2009-0819-2520-A1 Private Citizen D. Murphy EPA-HQ-OW-2009-0819-2521-A1 Private Citizen K. Margolis EPA-HQ-OW-2009-0819-2523-A1 Private Citizen S. Stark EPA-HQ-OW-2009-0819-2524-A1 Private Citizen L. Breshan EPA-HQ-OW-2009-0819-2526-A1 Private Citizen D. Neuendorff EPA-HQ-OW-2009-0819-2527-A1 Private Citizen P. Melko EPA-HQ-OW-2009-0819-2528-A1 Private Citizen N. McDaniel EPA-HQ-OW-2009-0819-2529-A1 Private Citizen W. Osborn EPA-HQ-OW-2009-0819-2530-A1 Private Citizen M. Alm EPA-HQ-OW-2009-0819-2531-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen M. Neuman EPA-HQ-OW-2009-0819-2533-A1 Private Citizen S. Campbell EPA-HQ-OW-2009-0819-2534-A1 Private Citizen S. Teeler EPA-HQ-OW-2009-0819-2536-A1 Private Citizen K. Shair EPA-HQ-OW-2009-0819-2537-A1 Private Citizen R. Ross EPA-HQ-OW-2009-0819-2541-A1 Private Citizen Y. Torrey EPA-HQ-OW-2009-0819-2542-A1 Private Citizen J. Fitzgerald EPA-HQ-OW-2009-0819-2543-A1 Private Citizen I. Moser EPA-HQ-OW-2009-0819-2544-A1 Private Citizen M. Linder EPA-HQ-OW-2009-0819-2545-A1 Private Citizen C. Ehrhardt EPA-HQ-OW-2009-0819-2546-A1 Private Citizen G. Applegate EPA-HQ-OW-2009-0819-2547-A1 Private Citizen S. Shaw EPA-HQ-OW-2009-0819-2549-A1 Private Citizen A. Sax EPA-HQ-OW-2009-0819-2550-A1 Private Citizen M. Shepherd EPA-HQ-OW-2009-0819-2551-A1 Private Citizen K. Schroeder EPA-HQ-OW-2009-0819-2552-A1 Private Citizen C. Irwin EPA-HQ-OW-2009-0819-2553-A1 Private Citizen S. Curry EPA-HQ-OW-2009-0819-2555-A1 Private Citizen G. Hunt EPA-HQ-OW-2009-0819-2556-A1 Private Citizen S. Mckee EPA-HQ-OW-2009-0819-2557-A1 Private Citizen J. Minore EPA-HQ-OW-2009-0819-2558-A1 Private Citizen D. Lamp EPA-HQ-OW-2009-0819-2560-A1 Private Citizen S. Chandler EPA-HQ-OW-2009-0819-2561-A1 Private Citizen C. Tarman-Major EPA-HQ-OW-2009-0819-2562-A1 Private Citizen C. Peard EPA-HQ-OW-2009-0819-2563-A1 Private Citizen R. Mills EPA-HQ-OW-2009-0819-2564-A1 Private Citizen M. and D. Stevens EPA-HQ-OW-2009-0819-2565-A1 Private Citizen M. Baer EPA-HQ-OW-2009-0819-2566-A1 Private Citizen G. Frederick EPA-HQ-OW-2009-0819-2567-A1 Private Citizen D. Kenel EPA-HQ-OW-2009-0819-2568-A1 Private Citizen C. Hiestand EPA-HQ-OW-2009-0819-2571-A1 Private Citizen D. Kobylarz EPA-HQ-OW-2009-0819-2572-A1 Private Citizen K. McKelvie EPA-HQ-OW-2009-0819-2573-A1 Private Citizen A. Moyer EPA-HQ-OW-2009-0819-2574-A1 Private Citizen T. Mc Ginnis EPA-HQ-OW-2009-0819-2575-A1 Private Citizen S. Mayhew EPA-HQ-OW-2009-0819-2576-A1 Private Citizen G. Aros EPA-HQ-OW-2009-0819-2577-A1 Private Citizen S. Wood EPA-HQ-OW-2009-0819-2578-A1 Private Citizen J. Zitko EPA-HQ-OW-2009-0819-2579-A1 Private Citizen A. Burt EPA-HQ-OW-2009-0819-2580-A1 Private Citizen R. Dugan EPA-HQ-OW-2009-0819-2581-A1 Private Citizen C. Peyton EPA-HQ-OW-2009-0819-2582-A1 Private Citizen D. Margolis EPA-HQ-OW-2009-0819-2583-A1 Private Citizen J. Comella EPA-HQ-OW-2009-0819-2584-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen J. Canepa EPA-HQ-OW-2009-0819-2585-A1 Private Citizen F. Nolastname EPA-HQ-OW-2009-0819-2588-A1 Private Citizen J. Sommer EPA-HQ-OW-2009-0819-2589-A1 Private Citizen B. Gahris EPA-HQ-OW-2009-0819-2591-A1 Private Citizen C. Conover EPA-HQ-OW-2009-0819-2594-A1 Private Citizen K. Angus EPA-HQ-OW-2009-0819-2595-A1 Private Citizen N. Walworth EPA-HQ-OW-2009-0819-2596-A1 Private Citizen D. Survant EPA-HQ-OW-2009-0819-2597-A1 Private Citizen R. Fandel EPA-HQ-OW-2009-0819-2598-A1 Private Citizen L. Salas EPA-HQ-OW-2009-0819-2599-A1 Private Citizen S. Stoudemire EPA-HQ-OW-2009-0819-2600-A1 Private Citizen G. Fleming EPA-HQ-OW-2009-0819-2601-A1 Private Citizen M. Vinciquerra EPA-HQ-OW-2009-0819-2602-A1 Private Citizen S. Holme EPA-HQ-OW-2009-0819-2603-A1 Private Citizen R. Symnestvedt EPA-HQ-OW-2009-0819-2604-A1 Private Citizen L. Knutsen EPA-HQ-OW-2009-0819-2605-A1 Private Citizen P. Ruona EPA-HQ-OW-2009-0819-2607-A1 Private Citizen B. Nyberg EPA-HQ-OW-2009-0819-2609-A1 Private Citizen D. Perlmutter EPA-HQ-OW-2009-0819-2610-A1 Private Citizen D. Capowski EPA-HQ-OW-2009-0819-2612-A1 Private Citizen E. Stoehr EPA-HQ-OW-2009-0819-2613-A1 Private Citizen K. Keppeler EPA-HQ-OW-2009-0819-2614-A1 Private Citizen W. Houck EPA-HQ-OW-2009-0819-2615-A1 Private Citizen K. Moore EPA-HQ-OW-2009-0819-2616-A1 Private Citizen B. Mitchell EPA-HQ-OW-2009-0819-2617-A1 Private Citizen C. Ludwig EPA-HQ-OW-2009-0819-2618-A1 Private Citizen J. Chasse EPA-HQ-OW-2009-0819-2620-A1 Private Citizen V. Croasdale EPA-HQ-OW-2009-0819-2621-A1 Private Citizen J. Collins EPA-HQ-OW-2009-0819-2622-A1 Private Citizen J. L. Stanley EPA-HQ-OW-2009-0819-2623-A1 Private Citizen J. Jackman EPA-HQ-OW-2009-0819-2624-A1 Private Citizen J. Westler EPA-HQ-OW-2009-0819-2625-A1 Private Citizen D. Varellas EPA-HQ-OW-2009-0819-2626-A1 Private Citizen S. Hanbury EPA-HQ-OW-2009-0819-2627-A1 Private Citizen V. Velategui EPA-HQ-OW-2009-0819-2628-A1 Private Citizen C. Hoagland EPA-HQ-OW-2009-0819-2629-A1 Private Citizen S. Pildner EPA-HQ-OW-2009-0819-2631-A1 Private Citizen C. Gildersleeve EPA-HQ-OW-2009-0819-2632-A1 Private Citizen L. Hunt EPA-HQ-OW-2009-0819-2633-A1 Private Citizen B. Katz EPA-HQ-OW-2009-0819-2634-A1 Private Citizen L. Schmidt EPA-HQ-OW-2009-0819-2635-A1 Private Citizen K. Kutschenreuter EPA-HQ-OW-2009-0819-2636-A1 Private Citizen T. Brewster EPA-HQ-OW-2009-0819-2637-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen S. Morse EPA-HQ-OW-2009-0819-2638-A1 Private Citizen J. Ripley EPA-HQ-OW-2009-0819-2639-A1 Private Citizen J. Anderton EPA-HQ-OW-2009-0819-2640-A1 Private Citizen A. Trombly EPA-HQ-OW-2009-0819-2641-A1 Private Citizen M. Harris EPA-HQ-OW-2009-0819-2642-A1 Private Citizen P. Houghton EPA-HQ-OW-2009-0819-2643-A1 Private Citizen D. Black EPA-HQ-OW-2009-0819-2644-A1 Private Citizen M. Dinu EPA-HQ-OW-2009-0819-2645-A1 Private Citizen T. Mara EPA-HQ-OW-2009-0819-2646-A1 Private Citizen D. Hunt EPA-HQ-OW-2009-0819-2647-A1 Private Citizen P. Ferris-Olson EPA-HQ-OW-2009-0819-2648-A1 Private Citizen P. Haun EPA-HQ-OW-2009-0819-2649-A1 Private Citizen J. Owens EPA-HQ-OW-2009-0819-2650-A1 Private Citizen S. Urkowitz EPA-HQ-OW-2009-0819-2651-A1 Private Citizen F. Hurd EPA-HQ-OW-2009-0819-2652-A1 Private Citizen C. King EPA-HQ-OW-2009-0819-2657-A1 Private Citizen S. Plummer EPA-HQ-OW-2009-0819-2659-A1 Private Citizen D. Eaves EPA-HQ-OW-2009-0819-2661-A1 Private Citizen H. Jones EPA-HQ-OW-2009-0819-2662-A1 Private Citizen B. Sanders EPA-HQ-OW-2009-0819-2663-A1 Private Citizen B. Coates EPA-HQ-OW-2009-0819-2664-A1 Private Citizen A. and A. Cole EPA-HQ-OW-2009-0819-2665-A1 Private Citizen M. Mcclelland EPA-HQ-OW-2009-0819-2666-A1 Private Citizen R. Young EPA-HQ-OW-2009-0819-2668-A1 Private Citizen C. Tracy EPA-HQ-OW-2009-0819-2669-A1 Private Citizen C. DAngelo EPA-HQ-OW-2009-0819-2671-A1 Private Citizen T. Pizer EPA-HQ-OW-2009-0819-2672-A1 Private Citizen P. Borchard EPA-HQ-OW-2009-0819-2673-A1 Private Citizen M. Williamson EPA-HQ-OW-2009-0819-2674-A1 Private Citizen D. Howard EPA-HQ-OW-2009-0819-2675-A1 Private Citizen L. Dodd EPA-HQ-OW-2009-0819-2676-A1 Private Citizen J. Royer EPA-HQ-OW-2009-0819-2677-A1 Private Citizen E. Riebschlaeger EPA-HQ-OW-2009-0819-2678-A1 Private Citizen E. Golden EPA-HQ-OW-2009-0819-2679-A1 Private Citizen K. Sanford EPA-HQ-OW-2009-0819-2680-A1 Private Citizen D. Richardson EPA-HQ-OW-2009-0819-2681-A1 Private Citizen C. Nix EPA-HQ-OW-2009-0819-2682-A1 Private Citizen B. Brendel EPA-HQ-OW-2009-0819-2683-A1 Private Citizen P. Maynes EPA-HQ-OW-2009-0819-2684-A1 Private Citizen B. Lockwood EPA-HQ-OW-2009-0819-2685-A1 Private Citizen V. Hull EPA-HQ-OW-2009-0819-2688-A1 Private Citizen W. Brudevold EPA-HQ-OW-2009-0819-2691-A1 Private Citizen A. Waxler EPA-HQ-OW-2009-0819-2692-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen L. Bloom EPA-HQ-OW-2009-0819-2693-A1 Private Citizen J. Williams EPA-HQ-OW-2009-0819-2694-A1 Private Citizen C. Eblen EPA-HQ-OW-2009-0819-2695-A1 Private Citizen A. Saraceno EPA-HQ-OW-2009-0819-2696-A1 Private Citizen G. Casey EPA-HQ-OW-2009-0819-2699-A1 Private Citizen J. Allen EPA-HQ-OW-2009-0819-2700-A1 Private Citizen N. Littlejohn EPA-HQ-OW-2009-0819-2701-A1 Private Citizen R. Luna EPA-HQ-OW-2009-0819-2702-A1 Private Citizen L. Luna EPA-HQ-OW-2009-0819-2703-A1 Private Citizen M. Luna EPA-HQ-OW-2009-0819-2704-A1 Private Citizen J. Streiner EPA-HQ-OW-2009-0819-2705-A1 Private Citizen L. Isbell EPA-HQ-OW-2009-0819-2706-A1 Private Citizen C. Derry EPA-HQ-OW-2009-0819-2707-A1 Private Citizen B. Sageng EPA-HQ-OW-2009-0819-2708-A1 Private Citizen P. Solomon EPA-HQ-OW-2009-0819-2709-A1 Private Citizen J. McGuire-Conlon EPA-HQ-OW-2009-0819-2710-A1 Private Citizen L. Leslie EPA-HQ-OW-2009-0819-2711-A1 Private Citizen M. Melendez EPA-HQ-OW-2009-0819-2712-A1 Private Citizen A. Michel EPA-HQ-OW-2009-0819-2713-A1 Private Citizen D. Boehner EPA-HQ-OW-2009-0819-2715-A1 Private Citizen P. Sorlien EPA-HQ-OW-2009-0819-2717 Private Citizen G. Izzo EPA-HQ-OW-2009-0819-2718-A1 Private Citizen C. Hershey EPA-HQ-OW-2009-0819-2719-A1 Private Citizen R. Baker EPA-HQ-OW-2009-0819-2720-A1 Private Citizen E. Wagner EPA-HQ-OW-2009-0819-2721-A1 Private Citizen D. Burdick EPA-HQ-OW-2009-0819-2722-A1 Private Citizen K. Trigilio EPA-HQ-OW-2009-0819-2723-A1 Private Citizen K. Hendrickson EPA-HQ-OW-2009-0819-2724-A1 Private Citizen S. Bailey EPA-HQ-OW-2009-0819-2725-A1 Private Citizen K. Hoye EPA-HQ-OW-2009-0819-2726-A1 Private Citizen A. Barron EPA-HQ-OW-2009-0819-2727-A1 Private Citizen W. Davis EPA-HQ-OW-2009-0819-2728-A1 Private Citizen M. Schwartz EPA-HQ-OW-2009-0819-2729-A1 Private Citizen J. Hicks EPA-HQ-OW-2009-0819-2732-A1 Private Citizen W. Van Elk EPA-HQ-OW-2009-0819-2733-A1 Private Citizen K. Trott EPA-HQ-OW-2009-0819-2734-A1 Private Citizen N. Milton EPA-HQ-OW-2009-0819-2735-A1 Private Citizen J. Kamalie EPA-HQ-OW-2009-0819-2736-A1 Private Citizen M. Christoffer EPA-HQ-OW-2009-0819-2737-A1 Private Citizen C. Tezza EPA-HQ-OW-2009-0819-2738-A1 Private Citizen A. Powers EPA-HQ-OW-2009-0819-2739-A1 Private Citizen J. Kotcon EPA-HQ-OW-2009-0819-2741-A1 Private Citizen T. J. Mortimer EPA-HQ-OW-2009-0819-2742Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen B. Pilcher EPA-HQ-OW-2009-0819-2744-A1 Private Citizen S. Bryan EPA-HQ-OW-2009-0819-2745-A1 Private Citizen J. Soto-Aviles EPA-HQ-OW-2009-0819-2746-A1 Private Citizen D. Pepper EPA-HQ-OW-2009-0819-2747-A1 Private Citizen A. Johanson EPA-HQ-OW-2009-0819-2748-A1 Private Citizen L. Bartell EPA-HQ-OW-2009-0819-2750-A1 Private Citizen M. Bodi EPA-HQ-OW-2009-0819-2751-A1 Private Citizen D. Snope EPA-HQ-OW-2009-0819-2752-A1 Private Citizen T. Giesy EPA-HQ-OW-2009-0819-2753-A1 Private Citizen C. Schemmel EPA-HQ-OW-2009-0819-2754-A1 Private Citizen R. Mcree Schultz EPA-HQ-OW-2009-0819-2756-A1 Private Citizen S. Hathaway EPA-HQ-OW-2009-0819-2757-A1 Private Citizen G. Rutledge EPA-HQ-OW-2009-0819-2758-A1 Private Citizen D. Briles EPA-HQ-OW-2009-0819-2765-A1 Private Citizen A. Sutton EPA-HQ-OW-2009-0819-2766-A1 Private Citizen I. J. DuBois EPA-HQ-OW-2009-0819-2770-A1 Private Citizen M. Strawn EPA-HQ-OW-2009-0819-2771-A1 Private Citizen M. Boyd EPA-HQ-OW-2009-0819-2772-A1 Private Citizen J. Fehr EPA-HQ-OW-2009-0819-2773-A1 Private Citizen B. Correro EPA-HQ-OW-2009-0819-2774-A1 Private Citizen J. Caine EPA-HQ-OW-2009-0819-2775-A1 Private Citizen S. Heimerl EPA-HQ-OW-2009-0819-2776-A1 Private Citizen E. Ballantyne EPA-HQ-OW-2009-0819-2777-A1 Private Citizen D. Balgemann EPA-HQ-OW-2009-0819-2778-A1 Private Citizen M. White EPA-HQ-OW-2009-0819-2779-A1 Private Citizen K. Cunningham EPA-HQ-OW-2009-0819-2780-A1 Private Citizen I. Funk EPA-HQ-OW-2009-0819-2782-A1 Private Citizen D. Waldon EPA-HQ-OW-2009-0819-2783-A1 Private Citizen C. Lucas EPA-HQ-OW-2009-0819-2784-A1 Private Citizen S. Sauvageau EPA-HQ-OW-2009-0819-2785-A1 Private Citizen K. Thaw EPA-HQ-OW-2009-0819-2786-A1 Private Citizen A. Rogers EPA-HQ-OW-2009-0819-2787-A1 Private Citizen K. Coffey EPA-HQ-OW-2009-0819-2788-A1 Private Citizen B. Efraimson EPA-HQ-OW-2009-0819-2789-A1 Private Citizen B. Yozwiak EPA-HQ-OW-2009-0819-2790-A1 Private Citizen E. Jakab EPA-HQ-OW-2009-0819-2791-A1 Private Citizen V. Mosca-Clark EPA-HQ-OW-2009-0819-2792-A1 Private Citizen D. Born EPA-HQ-OW-2009-0819-2793-A1 Private Citizen B. Bean EPA-HQ-OW-2009-0819-2794-A1 Private Citizen B. Birnbaum EPA-HQ-OW-2009-0819-2795-A1 Private Citizen D. Wishner EPA-HQ-OW-2009-0819-2796-A1 Private Citizen K. Mcdonald EPA-HQ-OW-2009-0819-2797-A1 Private Citizen C. Casey EPA-HQ-OW-2009-0819-2798-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen L. Maher EPA-HQ-OW-2009-0819-2799-A1 Private Citizen D. Lorenz EPA-HQ-OW-2009-0819-2800-A1 Private Citizen C. Smoyer EPA-HQ-OW-2009-0819-2801-A1 Private Citizen L. Schneider EPA-HQ-OW-2009-0819-2802-A1 Private Citizen S. Herring EPA-HQ-OW-2009-0819-2803-A1 Private Citizen R. Rudner-Muench EPA-HQ-OW-2009-0819-2804-A1 Private Citizen S. Zeller EPA-HQ-OW-2009-0819-2805-A1 Private Citizen E. Schafer EPA-HQ-OW-2009-0819-2806-A1 Private Citizen J. Pfeiffer EPA-HQ-OW-2009-0819-2807-A1 Private Citizen G. Mather EPA-HQ-OW-2009-0819-2808-A1 Private Citizen L. Patrell EPA-HQ-OW-2009-0819-2809-A1 Private Citizen G. Moore EPA-HQ-OW-2009-0819-2810-A1 Private Citizen G. Moore EPA-HQ-OW-2009-0819-2811-A1 Private Citizen D. Shelton EPA-HQ-OW-2009-0819-2812-A1 Private Citizen C. Barcus EPA-HQ-OW-2009-0819-2813-A1 Private Citizen L. Matejcek EPA-HQ-OW-2009-0819-2814-A1 Private Citizen P. Slone EPA-HQ-OW-2009-0819-2815-A1 Private Citizen D. Romo EPA-HQ-OW-2009-0819-2817-A1 Private Citizen M. Powell EPA-HQ-OW-2009-0819-2818-A1 Private Citizen N. Turner EPA-HQ-OW-2009-0819-2819-A1 Private Citizen Clean Water Action Mass Email EPA-HQ-OW-2009-0819-2821-A1 Private Citizen H. Seizer EPA-HQ-OW-2009-0819-2823-A1 Private Citizen J. Whitis EPA-HQ-OW-2009-0819-2824-A1 Private Citizen C. M. (no surname provided) EPA-HQ-OW-2009-0819-2825-A1 Private Citizen P. Piehle EPA-HQ-OW-2009-0819-2826-A1 Private Citizen H. Davison EPA-HQ-OW-2009-0819-2827-A1 Private Citizen A. Wolf EPA-HQ-OW-2009-0819-2828-A1 Private Citizen J. Corcoran EPA-HQ-OW-2009-0819-2829-A1 Private Citizen S. Martin EPA-HQ-OW-2009-0819-2830-A1 Private Citizen W. Grossman EPA-HQ-OW-2009-0819-2831-A1 Private Citizen A. Lowe EPA-HQ-OW-2009-0819-2832-A1 Private Citizen D. Hawley EPA-HQ-OW-2009-0819-2833-A1 Private Citizen P. Catala EPA-HQ-OW-2009-0819-2837-A1 Private Citizen K. Mabry EPA-HQ-OW-2009-0819-2838-A1 Private Citizen S. James EPA-HQ-OW-2009-0819-2839-A1 Private Citizen J. Rolon-Banker EPA-HQ-OW-2009-0819-2840-A1 Private Citizen G. Crouse EPA-HQ-OW-2009-0819-2841-A1 Private Citizen M. Silva EPA-HQ-OW-2009-0819-2842-A1 Private Citizen L. Lambeth EPA-HQ-OW-2009-0819-2843-A1 Private Citizen P. Sweeny EPA-HQ-OW-2009-0819-2844-A1 Private Citizen W. Jacobs EPA-HQ-OW-2009-0819-2845-A1 Private Citizen A. Sebek EPA-HQ-OW-2009-0819-2846-A1 Private Citizen D. Deland EPA-HQ-OW-2009-0819-2847-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen N. Morgan EPA-HQ-OW-2009-0819-2848-A1 Private Citizen R. Shannahan EPA-HQ-OW-2009-0819-2849-A1 Private Citizen D. Rios EPA-HQ-OW-2009-0819-2851-A1 Private Citizen C. Candell EPA-HQ-OW-2009-0819-2853-A1 Private Citizen A. Grahe EPA-HQ-OW-2009-0819-2858-A1 Private Citizen K. Scott EPA-HQ-OW-2009-0819-2859-A1 Private Citizen K. Hashbarger EPA-HQ-OW-2009-0819-2860-A1 Private Citizen S. Mcdonough EPA-HQ-OW-2009-0819-2861-A1 Private Citizen E. Olson EPA-HQ-OW-2009-0819-2862-A1 Private Citizen L. Barron EPA-HQ-OW-2009-0819-2863-A1 Private Citizen J. Copeland EPA-HQ-OW-2009-0819-2864-A1 Private Citizen B. Nadel EPA-HQ-OW-2009-0819-2865-A1 Private Citizen M. Sanders EPA-HQ-OW-2009-0819-2867-A1 Private Citizen P. Trown EPA-HQ-OW-2009-0819-2868-A1 Private Citizen D. R. Nelson EPA-HQ-OW-2009-0819-2869-A1 Private Citizen J. Sevilla EPA-HQ-OW-2009-0819-2870-A1 Private Citizen C. Candell EPA-HQ-OW-2009-0819-2871-A1 Private Citizen J. Rizzo EPA-HQ-OW-2009-0819-2872-A1 Private Citizen V. Jones EPA-HQ-OW-2009-0819-2873-A1 Private Citizen E. Russ EPA-HQ-OW-2009-0819-2874-A1 Private Citizen C. Wheeler EPA-HQ-OW-2009-0819-2875-A1 Private Citizen J. Boone EPA-HQ-OW-2009-0819-2877-A1 Private Citizen T. Kozlowski EPA-HQ-OW-2009-0819-2878-A1 Private Citizen J. Ripley EPA-HQ-OW-2009-0819-2879-A1 Private Citizen L. Kaufmann EPA-HQ-OW-2009-0819-2881-A1 Private Citizen D. and B. Olson EPA-HQ-OW-2009-0819-2882-A1 Private Citizen T. Moore EPA-HQ-OW-2009-0819-2883-A1 Private Citizen E. A. Caldwell EPA-HQ-OW-2009-0819-2885-A1 Private Citizen P. Ratkowski EPA-HQ-OW-2009-0819-2886-A1 Private Citizen R. Eason EPA-HQ-OW-2009-0819-2889-A1 Private Citizen W. Davis EPA-HQ-OW-2009-0819-2890-A1 Private Citizen M. Wamby EPA-HQ-OW-2009-0819-2891-A1 Private Citizen J. Hiss EPA-HQ-OW-2009-0819-2892-A1 Private Citizen M. Thomas EPA-HQ-OW-2009-0819-2893-A1 Private Citizen J. Falcon EPA-HQ-OW-2009-0819-2894-A1 Private Citizen D. Addison EPA-HQ-OW-2009-0819-2898-A1 Private Citizen R. Hoekstra EPA-HQ-OW-2009-0819-2899-A1 Private Citizen M. Powell EPA-HQ-OW-2009-0819-2900-A1 Private Citizen T. Craig EPA-HQ-OW-2009-0819-2901-A1 Private Citizen S. Guerin EPA-HQ-OW-2009-0819-2903-A1 Private Citizen C. Clark EPA-HQ-OW-2009-0819-2906-A1 Private Citizen L. Rosin EPA-HQ-OW-2009-0819-2907-A1 Private Citizen A. Schlegel-Topik EPA-HQ-OW-2009-0819-2908-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen S. Monnard EPA-HQ-OW-2009-0819-2909-A1 Private Citizen M. Eggleston EPA-HQ-OW-2009-0819-2910-A1 Private Citizen H. Sierra EPA-HQ-OW-2009-0819-2911-A1 Private Citizen G. Jones EPA-HQ-OW-2009-0819-2912-A1 Private Citizen J. Malecki EPA-HQ-OW-2009-0819-2913-A1 Private Citizen E. Cronise EPA-HQ-OW-2009-0819-2914-A1 Private Citizen D. Notkin EPA-HQ-OW-2009-0819-2917-A1 Private Citizen M. Gardella EPA-HQ-OW-2009-0819-2919-A1 Private Citizen J. Goheen EPA-HQ-OW-2009-0819-2922-A1 Private Citizen S. Mikkelsen EPA-HQ-OW-2009-0819-2924-A1 Private Citizen W. Schoene EPA-HQ-OW-2009-0819-2925-A1 Private Citizen J. Okano EPA-HQ-OW-2009-0819-2926-A1 Private Citizen S. Monnard EPA-HQ-OW-2009-0819-2928-A1 Private Citizen Judith J Kraft EPA-HQ-OW-2009-0819-2933 Private Citizen K. Viglietta EPA-HQ-OW-2009-0819-2937-A1 Private Citizen N. Tatlock EPA-HQ-OW-2009-0819-2938-A1 Private Citizen C. Mitchell EPA-HQ-OW-2009-0819-2939-A1 Private Citizen C. Steinhart EPA-HQ-OW-2009-0819-2941-A1 Private Citizen C. Lechner EPA-HQ-OW-2009-0819-2942-A1 Private Citizen C. Lucas EPA-HQ-OW-2009-0819-2947-A1 Private Citizen K. Hodges EPA-HQ-OW-2009-0819-2948-A1 Private Citizen G. James EPA-HQ-OW-2009-0819-2949-A1 Private Citizen Y. Odell EPA-HQ-OW-2009-0819-2952-A1 Private Citizen T. Kuna EPA-HQ-OW-2009-0819-2953-A1 Private Citizen S. Hathaway EPA-HQ-OW-2009-0819-2954-A1 Private Citizen J. Tache EPA-HQ-OW-2009-0819-2955-A1 Private Citizen G. Gifford EPA-HQ-OW-2009-0819-2956-A1 Private Citizen K. Alvesteffer EPA-HQ-OW-2009-0819-2957-A1 Private Citizen B. Pendleton EPA-HQ-OW-2009-0819-2959-A1 Private Citizen D. Heeman EPA-HQ-OW-2009-0819-2960-A1 Private Citizen S. Niznik EPA-HQ-OW-2009-0819-2961-A1 Private Citizen A. Joy EPA-HQ-OW-2009-0819-2963-A1 Private Citizen P. Crawford EPA-HQ-OW-2009-0819-2964-A1 Private Citizen J. Tullis EPA-HQ-OW-2009-0819-2966-A1 Private Citizen J. Walker EPA-HQ-OW-2009-0819-2969-A1 Private Citizen S. Parkins EPA-HQ-OW-2009-0819-2971-A1 Private Citizen B. Bruce EPA-HQ-OW-2009-0819-2977-A1 Private Citizen W. Holcomb and family EPA-HQ-OW-2009-0819-2978-A1 Private Citizen G. Burazer EPA-HQ-OW-2009-0819-2979-A1 Private Citizen A. Joy EPA-HQ-OW-2009-0819-2980-A1 Private Citizen D. Belachew EPA-HQ-OW-2009-0819-2981-A1 Private Citizen M. Monroe EPA-HQ-OW-2009-0819-2982-A1 Private Citizen S. Brady EPA-HQ-OW-2009-0819-2983-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen J. Southerland EPA-HQ-OW-2009-0819-2984-A1 Private Citizen S. Howard EPA-HQ-OW-2009-0819-2987-A1 Private Citizen L. Milatovich EPA-HQ-OW-2009-0819-2988-A1 Private Citizen R. Mayer EPA-HQ-OW-2009-0819-2989-A1 Private Citizen L. Baumeister EPA-HQ-OW-2009-0819-2991-A1 Private Citizen P. Sweeny EPA-HQ-OW-2009-0819-2993-A1 Private Citizen R. Levin EPA-HQ-OW-2009-0819-2994-A1 Private Citizen G. Casey EPA-HQ-OW-2009-0819-2995-A1 Private Citizen A. Lueth EPA-HQ-OW-2009-0819-2996-A1 Private Citizen M. Barkan EPA-HQ-OW-2009-0819-2997-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-2998 Private Citizen D. Galardo EPA-HQ-OW-2009-0819-3000-A1 Private Citizen S. Osberg EPA-HQ-OW-2009-0819-3001-A1 Private Citizen R. Cherry EPA-HQ-OW-2009-0819-3002-A1 Private Citizen K. Arellanes EPA-HQ-OW-2009-0819-3003-A1 Private Citizen R. Miller EPA-HQ-OW-2009-0819-3004-A1 Private Citizen C. Blackwood EPA-HQ-OW-2009-0819-3006-A1 Private Citizen E. V. DArnal EPA-HQ-OW-2009-0819-3007-A1 Private Citizen L. Manzione EPA-HQ-OW-2009-0819-3010-A1 Private Citizen A. Zuppo EPA-HQ-OW-2009-0819-3011-A1 Private Citizen R. Stambaugh EPA-HQ-OW-2009-0819-3012-A1 Private Citizen W. Southworth EPA-HQ-OW-2009-0819-3020-A1 Private Citizen S. Popma EPA-HQ-OW-2009-0819-3021-A1 Private Citizen Lena Moffitt EPA-HQ-OW-2009-0819-3037 Private Citizen P. Sennello EPA-HQ-OW-2009-0819-3038-A1 Private Citizen V. Yakushchenko EPA-HQ-OW-2009-0819-3044-A1 Private Citizen J. Lavassaur EPA-HQ-OW-2009-0819-3046-A1 Private Citizen L. Westbrook EPA-HQ-OW-2009-0819-3048-A1 Private Citizen R. Harper EPA-HQ-OW-2009-0819-3050-A1 Private Citizen K. Cornwell EPA-HQ-OW-2009-0819-3057-A1 Private Citizen J. Ludwig EPA-HQ-OW-2009-0819-3062-A1 Private Citizen L. Eiler EPA-HQ-OW-2009-0819-3064-A1 Private Citizen S. Chandler EPA-HQ-OW-2009-0819-3065-A1 Private Citizen B. Coulson EPA-HQ-OW-2009-0819-3066-A1 Private Citizen E. Boucher EPA-HQ-OW-2009-0819-3067-A1 Private Citizen P. Leven EPA-HQ-OW-2009-0819-3070-A1 Private Citizen R. Wager EPA-HQ-OW-2009-0819-3072-A1 Private Citizen T. Maschal EPA-HQ-OW-2009-0819-3073-A1 Private Citizen C. Jansen EPA-HQ-OW-2009-0819-3079-A1 Private Citizen J. Crean EPA-HQ-OW-2009-0819-3080-A1 Private Citizen L. Godmilow EPA-HQ-OW-2009-0819-3082-A1 Private Citizen L. Beatty EPA-HQ-OW-2009-0819-3086-A1 Private Citizen R. Dutta EPA-HQ-OW-2009-0819-3089-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen D. Lawton EPA-HQ-OW-2009-0819-3091-A1 Private Citizen J. Maglione EPA-HQ-OW-2009-0819-3101-A1 Private Citizen B. Ullmer EPA-HQ-OW-2009-0819-3102-A1 Private Citizen H. Baba EPA-HQ-OW-2009-0819-3103-A1 Private Citizen R. Schmidt EPA-HQ-OW-2009-0819-3104-A1 Private Citizen D. Scott EPA-HQ-OW-2009-0819-3105-A1 Private Citizen G. Casey EPA-HQ-OW-2009-0819-3107-A1 Private Citizen V. Mosca-Clark EPA-HQ-OW-2009-0819-3108-A1 Private Citizen S. Stott EPA-HQ-OW-2009-0819-3109-A1 Private Citizen M. Sullivan EPA-HQ-OW-2009-0819-3110-A1 Private Citizen H. Simpson EPA-HQ-OW-2009-0819-3111-A1 Private Citizen C. Liddell EPA-HQ-OW-2009-0819-3113-A1 Private Citizen M. Zwicker EPA-HQ-OW-2009-0819-3114-A1 Private Citizen R. Munroe EPA-HQ-OW-2009-0819-3115-A1 Private Citizen C. Gecas EPA-HQ-OW-2009-0819-3117-A1 Private Citizen E. Beattie Li EPA-HQ-OW-2009-0819-3118-A1 Private Citizen K. Alvesteffer EPA-HQ-OW-2009-0819-3119-A1 Private Citizen J. Reynolds EPA-HQ-OW-2009-0819-3120-A1 Private Citizen S. Sullivan-Greiner EPA-HQ-OW-2009-0819-3121-A1 Private Citizen John O. Olsen EPA-HQ-OW-2009-0819-3123-A1 Private Citizen W. McTague Jr. EPA-HQ-OW-2009-0819-3124-A1 Private Citizen G. Gifford EPA-HQ-OW-2009-0819-3125-A1 Private Citizen G. McCarthy EPA-HQ-OW-2009-0819-3126-A1 Private Citizen S. Lyon EPA-HQ-OW-2009-0819-3127-A1 Private Citizen E. Rosciam EPA-HQ-OW-2009-0819-3128-A1 Private Citizen R. Levin EPA-HQ-OW-2009-0819-3129-A1 Private Citizen M. Hebblewhite Davidson EPA-HQ-OW-2009-0819-3130-A1 Private Citizen M. MacPherson EPA-HQ-OW-2009-0819-3131-A1 Private Citizen F. La Monica EPA-HQ-OW-2009-0819-3134-A1 Private Citizen G. Groh EPA-HQ-OW-2009-0819-3135-A1 Private Citizen C. Moelter-Gray EPA-HQ-OW-2009-0819-3140-A1 Private Citizen A. Remley EPA-HQ-OW-2009-0819-3145-A1 Private Citizen C. Vandyke EPA-HQ-OW-2009-0819-3147-A1 Private Citizen Scott Osberg EPA-HQ-OW-2009-0819-3155-A1 Private Citizen K. Rowlett EPA-HQ-OW-2009-0819-3156-A1 Private Citizen K. Bolen EPA-HQ-OW-2009-0819-3157-A1 Private Citizen L. Yow EPA-HQ-OW-2009-0819-3158-A1 Private Citizen J. Way EPA-HQ-OW-2009-0819-3159-A1 Private Citizen S. Intilli EPA-HQ-OW-2009-0819-3161-A1 Private Citizen D. Grant EPA-HQ-OW-2009-0819-3162-A1 Private Citizen S. Gilbert EPA-HQ-OW-2009-0819-3163-A1 Private Citizen J. M. Ackerman EPA-HQ-OW-2009-0819-3173-A1 Private Citizen C. Liddell EPA-HQ-OW-2009-0819-3174-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen S. Mckee EPA-HQ-OW-2009-0819-3175-A1 Private Citizen G. Crouse EPA-HQ-OW-2009-0819-3176-A1 Private Citizen J. Corey EPA-HQ-OW-2009-0819-3177-A1 Private Citizen K. Pope EPA-HQ-OW-2009-0819-3178-A1 Private Citizen S. Bartovics EPA-HQ-OW-2009-0819-3179-A1 Private Citizen T. Kovach EPA-HQ-OW-2009-0819-3180-A1 Private Citizen B. Given EPA-HQ-OW-2009-0819-3181-A1 Private Citizen S. Chandler EPA-HQ-OW-2009-0819-3184-A1 Private Citizen A. Giller EPA-HQ-OW-2009-0819-3185-A1 Private Citizen J. Dunkle EPA-HQ-OW-2009-0819-3190-A1 Private Citizen S. Smith-Gill EPA-HQ-OW-2009-0819-3191-A1 Private Citizen L. Hopkins EPA-HQ-OW-2009-0819-3192-A1 Private Citizen F. Sharon EPA-HQ-OW-2009-0819-3194-A1 Private Citizen L. Drell EPA-HQ-OW-2009-0819-3196-A1 Private Citizen J. Foreman EPA-HQ-OW-2009-0819-3197-A1 Private Citizen B. Consolazio EPA-HQ-OW-2009-0819-3199-A1 Private Citizen L. M. Roberson EPA-HQ-OW-2009-0819-3200-A1 Private Citizen L. Gorsuch EPA-HQ-OW-2009-0819-3201-A1 Private Citizen P. Holliday EPA-HQ-OW-2009-0819-3202-A1 Private Citizen A. Balogh EPA-HQ-OW-2009-0819-3203-A1 Private Citizen S. Niznik EPA-HQ-OW-2009-0819-3204-A1 Private Citizen G. Janzen EPA-HQ-OW-2009-0819-3205-A1 Private Citizen S. Alex EPA-HQ-OW-2009-0819-3206-A1 Private Citizen J. Dunkle EPA-HQ-OW-2009-0819-3207-A1 Private Citizen D. Gibfried EPA-HQ-OW-2009-0819-3208-A1 Private Citizen J. Steitz EPA-HQ-OW-2009-0819-3209-A1 Private Citizen M. Tracey EPA-HQ-OW-2009-0819-3210-A1 Private Citizen J. Snyder EPA-HQ-OW-2009-0819-3214-A1 Private Citizen P. Ghenoiu EPA-HQ-OW-2009-0819-3215-A1 Private Citizen M. Thomae EPA-HQ-OW-2009-0819-3218-A1 Private Citizen D. Grant EPA-HQ-OW-2009-0819-3219-A1 Private Citizen A. Cuttler EPA-HQ-OW-2009-0819-3220-A1 Private Citizen J. Tullis EPA-HQ-OW-2009-0819-3221-A1 Private Citizen M. Zamboni EPA-HQ-OW-2009-0819-3222-A1 Private Citizen A. Demetreon EPA-HQ-OW-2009-0819-3224-A1 Private Citizen A. Joy EPA-HQ-OW-2009-0819-3225-A1 Private Citizen C. Lucas EPA-HQ-OW-2009-0819-3227-A1 Private Citizen G. Adams EPA-HQ-OW-2009-0819-3228-A1 Private Citizen C. Trebes EPA-HQ-OW-2009-0819-3230-A1 Private Citizen B. Katz EPA-HQ-OW-2009-0819-3231-A1 Private Citizen N. Bell EPA-HQ-OW-2009-0819-3232-A1 Private Citizen J. Castiano EPA-HQ-OW-2009-0819-3233-A1 Private Citizen L. Paul EPA-HQ-OW-2009-0819-3234-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen T. Kuna EPA-HQ-OW-2009-0819-3235-A1 Private Citizen F. Gallego EPA-HQ-OW-2009-0819-3236-A1 Private Citizen J. Hodie EPA-HQ-OW-2009-0819-3237-A1 Private Citizen P. Sweeny EPA-HQ-OW-2009-0819-3238-A1 Private Citizen K. Hodges EPA-HQ-OW-2009-0819-3239-A1 Private Citizen S. Hathaway EPA-HQ-OW-2009-0819-3240-A1 Private Citizen G. James EPA-HQ-OW-2009-0819-3242-A1 Private Citizen S. Sanders EPA-HQ-OW-2009-0819-3244-A1 Private Citizen C. Orr EPA-HQ-OW-2009-0819-3245-A1 Private Citizen R. Scheidler EPA-HQ-OW-2009-0819-3246-A1 Private Citizen J. Foreman EPA-HQ-OW-2009-0819-3247-A1 Private Citizen D. Darcy EPA-HQ-OW-2009-0819-3249-A1 Private Citizen D. Heeman EPA-HQ-OW-2009-0819-3259-A1 Private Citizen C. Green EPA-HQ-OW-2009-0819-3263-A1 Private Citizen Eliot B Picard EPA-HQ-OW-2009-0819-3265 Private Citizen I. Echegaray EPA-HQ-OW-2009-0819-3266-A1 Private Citizen C. Zion EPA-HQ-OW-2009-0819-3268-A1 Private Citizen N. Frazer EPA-HQ-OW-2009-0819-3271-A1 Private Citizen V. Boyle EPA-HQ-OW-2009-0819-3273-A1 Private Citizen R. A. Mertz EPA-HQ-OW-2009-0819-3276-A1 Private Citizen L. Hall EPA-HQ-OW-2009-0819-3278-A1 Private Citizen T. Flickinger EPA-HQ-OW-2009-0819-3279-A1 Private Citizen E. Landes EPA-HQ-OW-2009-0819-3281-A1 Private Citizen K. Nordmeyer EPA-HQ-OW-2009-0819-3282-A1 Private Citizen C. Steinhart EPA-HQ-OW-2009-0819-3284-A1 Private Citizen S. Mckee EPA-HQ-OW-2009-0819-3285-A1 Private Citizen G. Holden EPA-HQ-OW-2009-0819-3286-A1 Private Citizen R. Pride EPA-HQ-OW-2009-0819-3287-A1 Private Citizen M. Biesel EPA-HQ-OW-2009-0819-3290-A1 Private Citizen M. Strawn EPA-HQ-OW-2009-0819-3292-A1 Private Citizen G. E. Curry EPA-HQ-OW-2009-0819-3294 Private Citizen M. Boehm EPA-HQ-OW-2009-0819-3305-A1 Private Citizen I. and J. Berlin EPA-HQ-OW-2009-0819-3307-A1 Private Citizen J. Reel EPA-HQ-OW-2009-0819-3308-A1 Private Citizen F. Glass EPA-HQ-OW-2009-0819-3310-A1 Private Citizen M. D. Moderacki EPA-HQ-OW-2009-0819-3311-A1 Private Citizen S. Chandler EPA-HQ-OW-2009-0819-3312-A1 Private Citizen L. Rosin EPA-HQ-OW-2009-0819-3313-A1 Private Citizen J. Colucci EPA-HQ-OW-2009-0819-3314-A1 Private Citizen A. Ostrov EPA-HQ-OW-2009-0819-3315-A1 Private Citizen M. Norris EPA-HQ-OW-2009-0819-3316-A1 Private Citizen J. Boettner EPA-HQ-OW-2009-0819-3317-A1 Private Citizen A. Zuppo EPA-HQ-OW-2009-0819-3319-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen E. DArnal EPA-HQ-OW-2009-0819-3321-A1 Private Citizen T. Rossiter EPA-HQ-OW-2009-0819-3322-A1 Private Citizen B. Milne EPA-HQ-OW-2009-0819-3325-A1 Private Citizen D. Walko EPA-HQ-OW-2009-0819-3327-A1 Private Citizen T. Newlin EPA-HQ-OW-2009-0819-3328-A1 Private Citizen S. Smith-Gill EPA-HQ-OW-2009-0819-3331-A1 Private Citizen M. Fogg EPA-HQ-OW-2009-0819-3333-A1 Private Citizen L. Baumeister EPA-HQ-OW-2009-0819-3336-A1 Private Citizen G. Taylor EPA-HQ-OW-2009-0819-3339-A1 Private Citizen Richard Paul EPA-HQ-OW-2009-0819-3342 Private Citizen S. Parkins EPA-HQ-OW-2009-0819-3343-A1 Private Citizen C. Lechner EPA-HQ-OW-2009-0819-3344-A1 Private Citizen S. Phillips EPA-HQ-OW-2009-0819-3346-A1 Private Citizen T. Jankovic EPA-HQ-OW-2009-0819-3348-A1 Private Citizen S. Wallis EPA-HQ-OW-2009-0819-3350-A1 Private Citizen L. Sternberg EPA-HQ-OW-2009-0819-3351-A1 Private Citizen R. Mayer EPA-HQ-OW-2009-0819-3355-A1 Private Citizen B. Scott EPA-HQ-OW-2009-0819-3357-A1 Private Citizen L. Kennedy EPA-HQ-OW-2009-0819-3362-A1 Private Citizen M. Leppert EPA-HQ-OW-2009-0819-3365-A1 Private Citizen C. Parr EPA-HQ-OW-2009-0819-3366-A1 Private Citizen M. Palmer EPA-HQ-OW-2009-0819-3370-A1 Private Citizen H. Booth EPA-HQ-OW-2009-0819-3371-A1 Private Citizen S. Intilli EPA-HQ-OW-2009-0819-3374-A1 Private Citizen B. Walker EPA-HQ-OW-2009-0819-3375-A1 Private Citizen E. Albright EPA-HQ-OW-2009-0819-3376-A1 Private Citizen L. Johnson EPA-HQ-OW-2009-0819-3377-A1 Private Citizen M. Fedrick EPA-HQ-OW-2009-0819-3378-A1 Private Citizen B. Sabo EPA-HQ-OW-2009-0819-3381-A1 Private Citizen S. Bartovies EPA-HQ-OW-2009-0819-3382-A1 Private Citizen J. Sorrells EPA-HQ-OW-2009-0819-3383-A1 Private Citizen M. Macor EPA-HQ-OW-2009-0819-3384-A1 Private Citizen P. Matejcek EPA-HQ-OW-2009-0819-3385-A1 Private Citizen B. Given EPA-HQ-OW-2009-0819-3387-A1 Private Citizen K. Kassem EPA-HQ-OW-2009-0819-3388-A1 Private Citizen J. Tache EPA-HQ-OW-2009-0819-3389-A1 Private Citizen C. Schmalz EPA-HQ-OW-2009-0819-3390-A1 Private Citizen J. Wood EPA-HQ-OW-2009-0819-3392-A1 Private Citizen E. Bill EPA-HQ-OW-2009-0819-3394-A1 Private Citizen C. Blackwood EPA-HQ-OW-2009-0819-3397-A1 Private Citizen H. Phelps EPA-HQ-OW-2009-0819-3406-A1 Private Citizen Lucado Family EPA-HQ-OW-2009-0819-3410 Private Citizen L. Bender EPA-HQ-OW-2009-0819-3412-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen M. Everest EPA-HQ-OW-2009-0819-3413-A1 Private Citizen M. Cheney EPA-HQ-OW-2009-0819-3414-A1 Private Citizen E. Stoehr EPA-HQ-OW-2009-0819-3415-A1 Private Citizen D. Hanson EPA-HQ-OW-2009-0819-3416-A1 Private Citizen A. Giraud EPA-HQ-OW-2009-0819-3417-A1 Private Citizen S. Justice EPA-HQ-OW-2009-0819-3418-A1 Private Citizen N. Zuckerman EPA-HQ-OW-2009-0819-3419-A1 Private Citizen K. Venemon EPA-HQ-OW-2009-0819-3420-A1 Private Citizen E. Jones EPA-HQ-OW-2009-0819-3421-A1 Private Citizen C. Tenneriello EPA-HQ-OW-2009-0819-3422-A1 Private Citizen G. Wells EPA-HQ-OW-2009-0819-3423-A1 Private Citizen L. Barnes EPA-HQ-OW-2009-0819-3424-A1 Private Citizen L. Collins EPA-HQ-OW-2009-0819-3425-A1 Private Citizen C. Elia EPA-HQ-OW-2009-0819-3426-A1 Private Citizen K. Rowlett EPA-HQ-OW-2009-0819-3427-A1 Private Citizen V. Kimball-Speicher EPA-HQ-OW-2009-0819-3428-A1 Private Citizen H. Shaw EPA-HQ-OW-2009-0819-3429-A1 Private Citizen D. Wiebold EPA-HQ-OW-2009-0819-3430-A1 Private Citizen K. Cody EPA-HQ-OW-2009-0819-3431-A1 Private Citizen F. La Monica EPA-HQ-OW-2009-0819-3432-A1 Private Citizen T. Felix EPA-HQ-OW-2009-0819-3433-A1 Private Citizen T. Shoemaker EPA-HQ-OW-2009-0819-3434-A1 Private Citizen R. Winn EPA-HQ-OW-2009-0819-3435-A1 Private Citizen C. Westland EPA-HQ-OW-2009-0819-3436-A1 Private Citizen J. Mcnary EPA-HQ-OW-2009-0819-3437-A1 Private Citizen E. McCall EPA-HQ-OW-2009-0819-3438-A1 Private Citizen J. Scott EPA-HQ-OW-2009-0819-3439-A1 Private Citizen R. Donahey EPA-HQ-OW-2009-0819-3440-A1 Private Citizen D. Polkingham EPA-HQ-OW-2009-0819-3441-A1 Private Citizen D. Smeltzer EPA-HQ-OW-2009-0819-3443-A1 Private Citizen J. Brinckloe EPA-HQ-OW-2009-0819-3445-A1 Private Citizen R. Wendelgass EPA-HQ-OW-2009-0819-3446-A1 Private Citizen E. Feld EPA-HQ-OW-2009-0819-3451-A1 Private Citizen C. Fitzpatrick EPA-HQ-OW-2009-0819-3452-A1 Private Citizen K. Lee EPA-HQ-OW-2009-0819-3453-A1 Private Citizen K. Wight EPA-HQ-OW-2009-0819-3455-A1 Private Citizen K. Young EPA-HQ-OW-2009-0819-3456-A1 Private Citizen H. Mukasa EPA-HQ-OW-2009-0819-3457-A1 Private Citizen F. Daily EPA-HQ-OW-2009-0819-3458-A1 Private Citizen S. Hartman EPA-HQ-OW-2009-0819-3459-A1 Private Citizen B. Conover EPA-HQ-OW-2009-0819-3460-A1 Private Citizen L. Hill EPA-HQ-OW-2009-0819-3462-A1 Private Citizen H. Pratt EPA-HQ-OW-2009-0819-3463-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen W. Wynkoop EPA-HQ-OW-2009-0819-3464-A1 Private Citizen C. Perez EPA-HQ-OW-2009-0819-3465-A1 Private Citizen P. Baum EPA-HQ-OW-2009-0819-3466-A1 Private Citizen D. Henninger EPA-HQ-OW-2009-0819-3467-A1 Private Citizen P. Judson EPA-HQ-OW-2009-0819-3468-A1 Private Citizen S. Brown EPA-HQ-OW-2009-0819-3469-A1 Private Citizen S. K. Olson EPA-HQ-OW-2009-0819-3471-A1 Private Citizen A. Martin EPA-HQ-OW-2009-0819-3472-A1 Private Citizen F. DaFonseca EPA-HQ-OW-2009-0819-3473-A1 Private Citizen L. Bolam EPA-HQ-OW-2009-0819-3474-A1 Private Citizen R. Schamel EPA-HQ-OW-2009-0819-3475-A1 Private Citizen T. Prusch EPA-HQ-OW-2009-0819-3476-A1 Private Citizen M. Guest EPA-HQ-OW-2009-0819-3477-A1 Private Citizen R. D. Lebel EPA-HQ-OW-2009-0819-3479-A1 Private Citizen H. Glass EPA-HQ-OW-2009-0819-3480-A1 Private Citizen A. K. Grenier EPA-HQ-OW-2009-0819-3481-A1 Private Citizen M. H. Missad EPA-HQ-OW-2009-0819-3482-A1 Private Citizen E. Charlson EPA-HQ-OW-2009-0819-3483-A1 Private Citizen L. Mills EPA-HQ-OW-2009-0819-3484-A1 Private Citizen C. Nazor EPA-HQ-OW-2009-0819-3485-A1 Private Citizen T. Galownia EPA-HQ-OW-2009-0819-3486-A1 Private Citizen R. Choudhry EPA-HQ-OW-2009-0819-3487-A1 Private Citizen P. Lowe EPA-HQ-OW-2009-0819-3490-A1 Private Citizen M. Weisberg EPA-HQ-OW-2009-0819-3491-A1 Private Citizen M. Tarantino EPA-HQ-OW-2009-0819-3492-A1 Private Citizen N. Jay EPA-HQ-OW-2009-0819-3493-A1 Private Citizen M. Weber EPA-HQ-OW-2009-0819-3494-A1 Private Citizen C. Piernot EPA-HQ-OW-2009-0819-3495-A1 Private Citizen S. Cole EPA-HQ-OW-2009-0819-3496-A1 Private Citizen D. Wagstaff EPA-HQ-OW-2009-0819-3497-A1 Private Citizen L. Seabrook EPA-HQ-OW-2009-0819-3498-A1 Private Citizen L. Moore EPA-HQ-OW-2009-0819-3499-A1 Private Citizen C. Kobbe EPA-HQ-OW-2009-0819-3500-A1 Private Citizen M. Olinger EPA-HQ-OW-2009-0819-3501-A1 Private Citizen E. Cornetta EPA-HQ-OW-2009-0819-3502-A1 Private Citizen G. Lefebvre EPA-HQ-OW-2009-0819-3503-A1 Private Citizen J. Hume EPA-HQ-OW-2009-0819-3504-A1 Private Citizen D. Sathe EPA-HQ-OW-2009-0819-3505-A1 Private Citizen J. Tenorio EPA-HQ-OW-2009-0819-3506-A1 Private Citizen J. Tighe EPA-HQ-OW-2009-0819-3507-A1 Private Citizen M. Grande EPA-HQ-OW-2009-0819-3509-A1 Private Citizen J. Williams EPA-HQ-OW-2009-0819-3511-A1 Private Citizen E. Frey EPA-HQ-OW-2009-0819-3514-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen M. Durham EPA-HQ-OW-2009-0819-3515-A1 Private Citizen L. Geraci EPA-HQ-OW-2009-0819-3516-A1 Private Citizen H. Secker EPA-HQ-OW-2009-0819-3518-A1 Private Citizen T. Tippin EPA-HQ-OW-2009-0819-3519-A1 Private Citizen J. Tyler EPA-HQ-OW-2009-0819-3521-A1 Private Citizen T. Gardner EPA-HQ-OW-2009-0819-3523-A1 Private Citizen R. Webb EPA-HQ-OW-2009-0819-3524-A1 Private Citizen V. Puleo EPA-HQ-OW-2009-0819-3525-A1 Private Citizen J. Lent EPA-HQ-OW-2009-0819-3526-A1 Private Citizen M. Sladek EPA-HQ-OW-2009-0819-3527-A1 Private Citizen L. Smith EPA-HQ-OW-2009-0819-3528-A1 Private Citizen M. Lynwood EPA-HQ-OW-2009-0819-3529-A1 Private Citizen B. P. OBrien EPA-HQ-OW-2009-0819-3530-A1 Private Citizen L. Brayton EPA-HQ-OW-2009-0819-3531-A1 Private Citizen S. Pratt EPA-HQ-OW-2009-0819-3532-A1 Private Citizen J. Marsilli EPA-HQ-OW-2009-0819-3533-A1 Private Citizen L. Dobrzelewski EPA-HQ-OW-2009-0819-3534-A1 Private Citizen S. Swann EPA-HQ-OW-2009-0819-3535-A1 Private Citizen R. Hill EPA-HQ-OW-2009-0819-3536-A1 Private Citizen B. Pikus EPA-HQ-OW-2009-0819-3538-A1 Private Citizen A. Stockdale EPA-HQ-OW-2009-0819-3539-A1 Private Citizen M. Higgins EPA-HQ-OW-2009-0819-3540-A1 Private Citizen L. Rosin EPA-HQ-OW-2009-0819-3541-A1 Private Citizen R. J. Patterson EPA-HQ-OW-2009-0819-3542-A1 Private Citizen Y. Honda EPA-HQ-OW-2009-0819-3543-A1 Private Citizen W. Gies EPA-HQ-OW-2009-0819-3544-A1 Private Citizen L. Bresnan EPA-HQ-OW-2009-0819-3545-A1 Private Citizen E. L. Stanley EPA-HQ-OW-2009-0819-3546-A1 Private Citizen T. Lawlis EPA-HQ-OW-2009-0819-3547-A1 Private Citizen D. Hawley EPA-HQ-OW-2009-0819-3548-A1 Private Citizen L. Niemala EPA-HQ-OW-2009-0819-3549-A1 Private Citizen B. Lee EPA-HQ-OW-2009-0819-3550-A1 Private Citizen R. High EPA-HQ-OW-2009-0819-3551-A1 Private Citizen M. Cravatta EPA-HQ-OW-2009-0819-3553-A1 Private Citizen B. Walker EPA-HQ-OW-2009-0819-3554-A1 Private Citizen M. Sowerwine EPA-HQ-OW-2009-0819-3555-A1 Private Citizen C. Thayer EPA-HQ-OW-2009-0819-3556-A1 Private Citizen B. Becker EPA-HQ-OW-2009-0819-3557-A1 Private Citizen C. Capoun EPA-HQ-OW-2009-0819-3558-A1 Private Citizen S. Asmus EPA-HQ-OW-2009-0819-3559-A1 Private Citizen W. Todd EPA-HQ-OW-2009-0819-3560-A1 Private Citizen S. Knight EPA-HQ-OW-2009-0819-3561-A1 Private Citizen M. Kowalski EPA-HQ-OW-2009-0819-3562-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen D. Crowley EPA-HQ-OW-2009-0819-3563-A1 Private Citizen P.Schutt EPA-HQ-OW-2009-0819-3564-A1 Private Citizen C. Hay EPA-HQ-OW-2009-0819-3565-A1 Private Citizen A. Joy EPA-HQ-OW-2009-0819-3566-A1 Private Citizen R. McCombs EPA-HQ-OW-2009-0819-3567-A1 Private Citizen H. James EPA-HQ-OW-2009-0819-3568-A1 Private Citizen B. Jorgensen EPA-HQ-OW-2009-0819-3569-A1 Private Citizen B. Coffmon EPA-HQ-OW-2009-0819-3571-A1 Private Citizen L. Sky EPA-HQ-OW-2009-0819-3573-A1 Private Citizen K. V. Schure EPA-HQ-OW-2009-0819-3574-A1 Private Citizen T. Davis EPA-HQ-OW-2009-0819-3575-A1 Private Citizen T. Scott EPA-HQ-OW-2009-0819-3576-A1 Private Citizen D. Dunn EPA-HQ-OW-2009-0819-3577-A1 Private Citizen L. Lowden EPA-HQ-OW-2009-0819-3578-A1 Private Citizen R. Hoekstra EPA-HQ-OW-2009-0819-3579-A1 Private Citizen S. Jaworowski EPA-HQ-OW-2009-0819-3580-A1 Private Citizen J. House EPA-HQ-OW-2009-0819-3582-A1 Private Citizen W. Abernathy EPA-HQ-OW-2009-0819-3583-A1 Private Citizen T. Rhodes EPA-HQ-OW-2009-0819-3584-A1 Private Citizen C. Jenkins EPA-HQ-OW-2009-0819-3585-A1 Private Citizen G. Schmidt EPA-HQ-OW-2009-0819-3586-A1 Private Citizen R. Melton EPA-HQ-OW-2009-0819-3587-A1 Private Citizen K. Mostek EPA-HQ-OW-2009-0819-3588-A1 Private Citizen M. Nelson EPA-HQ-OW-2009-0819-3590-A1 Private Citizen P. Fry EPA-HQ-OW-2009-0819-3591-A1 Private Citizen E. & S. Kallio EPA-HQ-OW-2009-0819-3592-A1 Private Citizen S. Wolff EPA-HQ-OW-2009-0819-3593-A1 Private Citizen B. Ventura EPA-HQ-OW-2009-0819-3594-A1 Private Citizen M. R. Baldwin EPA-HQ-OW-2009-0819-3595-A1 Private Citizen A. Jones EPA-HQ-OW-2009-0819-3596-A1 Private Citizen M. Clough EPA-HQ-OW-2009-0819-3597-A1 Private Citizen J. Wood EPA-HQ-OW-2009-0819-3598-A1 Private Citizen L. Williams EPA-HQ-OW-2009-0819-3599-A1 Private Citizen E. Nelson EPA-HQ-OW-2009-0819-3600-A1 Private Citizen M. Gumbarevic EPA-HQ-OW-2009-0819-3602-A1 Private Citizen L. Leslie EPA-HQ-OW-2009-0819-3603-A1 Private Citizen C. Baldwin EPA-HQ-OW-2009-0819-3604-A1 Private Citizen A. Pyle EPA-HQ-OW-2009-0819-3605-A1 Private Citizen M. J. Lorenz EPA-HQ-OW-2009-0819-3606-A1 Private Citizen M. Pung EPA-HQ-OW-2009-0819-3607-A1 Private Citizen D. Glen EPA-HQ-OW-2009-0819-3608-A1 Private Citizen F. Grabenhofer EPA-HQ-OW-2009-0819-3609-A1 Private Citizen S. Lannin EPA-HQ-OW-2009-0819-3610-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen C. Morrissette EPA-HQ-OW-2009-0819-3611-A1 Private Citizen R. Carpenter EPA-HQ-OW-2009-0819-3612-A1 Private Citizen J. Crooke EPA-HQ-OW-2009-0819-3613-A1 Private Citizen C. Wellman EPA-HQ-OW-2009-0819-3614-A1 Private Citizen J. Rich EPA-HQ-OW-2009-0819-3615-A1 Private Citizen K. Hart EPA-HQ-OW-2009-0819-3616-A1 Private Citizen D. Nauer EPA-HQ-OW-2009-0819-3617-A1 Private Citizen T. McArthur EPA-HQ-OW-2009-0819-3618-A1 Private Citizen E. Kane EPA-HQ-OW-2009-0819-3619-A1 Private Citizen B. Colon EPA-HQ-OW-2009-0819-3620-A1 Private Citizen A. Young EPA-HQ-OW-2009-0819-3621-A1 Private Citizen Connie S. EPA-HQ-OW-2009-0819-3622-A1 Private Citizen M. Whitaker EPA-HQ-OW-2009-0819-3623-A1 Private Citizen D. Rienstra EPA-HQ-OW-2009-0819-3624-A1 Private Citizen M. Powell EPA-HQ-OW-2009-0819-3626-A1 Private Citizen A. Assad EPA-HQ-OW-2009-0819-3627-A1 Private Citizen J. Szetela EPA-HQ-OW-2009-0819-3628-A1 Private Citizen S. Desmet EPA-HQ-OW-2009-0819-3629-A1 Private Citizen S. Fetch EPA-HQ-OW-2009-0819-3630-A1 Private Citizen J. Dunlap EPA-HQ-OW-2009-0819-3631-A1 Private Citizen F. Lehner EPA-HQ-OW-2009-0819-3632-A1 Private Citizen B. Koval EPA-HQ-OW-2009-0819-3633-A1 Private Citizen S. Leonard EPA-HQ-OW-2009-0819-3634-A1 Private Citizen C. Crew EPA-HQ-OW-2009-0819-3635-A1 Private Citizen J. Canever EPA-HQ-OW-2009-0819-3636-A1 Private Citizen J. Gilchrist EPA-HQ-OW-2009-0819-3637-A1 Private Citizen A. V. Amerongen EPA-HQ-OW-2009-0819-3640-A1 Private Citizen B. Murphy EPA-HQ-OW-2009-0819-3643-A1 Private Citizen C. Wellman EPA-HQ-OW-2009-0819-3644-A1 Private Citizen N. Frank EPA-HQ-OW-2009-0819-3646-A1 Private Citizen R. Zabors EPA-HQ-OW-2009-0819-3647-A1 Private Citizen N. P. Peritore EPA-HQ-OW-2009-0819-3648-A1 Private Citizen Dr. C. Pinter EPA-HQ-OW-2009-0819-3649-A1 Private Citizen B. Davis EPA-HQ-OW-2009-0819-3650-A1 Private Citizen C. Davis EPA-HQ-OW-2009-0819-3651-A1 Private Citizen P. C. H. Gampper EPA-HQ-OW-2009-0819-3653-A1 Private Citizen J. Kozel EPA-HQ-OW-2009-0819-3654-A1 Private Citizen A. Schibline EPA-HQ-OW-2009-0819-3655-A1 Private Citizen C. Kolberg EPA-HQ-OW-2009-0819-3657-A1 Private Citizen D. Drake EPA-HQ-OW-2009-0819-3658-A1 Private Citizen N. DeRose EPA-HQ-OW-2009-0819-3659-A1 Private Citizen G. Crouse EPA-HQ-OW-2009-0819-3660-A1 Private Citizen M. Faron EPA-HQ-OW-2009-0819-3661-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen N. Leutwiler EPA-HQ-OW-2009-0819-3662-A1 Private Citizen S. Lannin EPA-HQ-OW-2009-0819-3664-A1 Private Citizen J. Kirksey EPA-HQ-OW-2009-0819-3665-A1 Private Citizen L. Hayes EPA-HQ-OW-2009-0819-3666-A1 Private Citizen C. Bennett EPA-HQ-OW-2009-0819-3667-A1 Private Citizen A. DiScenna EPA-HQ-OW-2009-0819-3668-A1 Private Citizen G. Opem EPA-HQ-OW-2009-0819-3669-A1 Private Citizen K. Conlon Wasik EPA-HQ-OW-2009-0819-3670-A1 Private Citizen B. Imam EPA-HQ-OW-2009-0819-3672-A1 Private Citizen R. Collings EPA-HQ-OW-2009-0819-3673-A1 Private Citizen J. Rothenberg EPA-HQ-OW-2009-0819-3674-A1 Private Citizen N. Ross EPA-HQ-OW-2009-0819-3675-A1 Private Citizen T. Edwards EPA-HQ-OW-2009-0819-3676-A1 Private Citizen L. Sturm EPA-HQ-OW-2009-0819-3677-A1 Private Citizen U. C. Burton EPA-HQ-OW-2009-0819-3679-A1 Private Citizen K. Peterson Dadant EPA-HQ-OW-2009-0819-3680-A1 Private Citizen C. Yang EPA-HQ-OW-2009-0819-3681-A1 Private Citizen S. Hershey EPA-HQ-OW-2009-0819-3682-A1 Private Citizen C. Alt EPA-HQ-OW-2009-0819-3683-A1 Private Citizen T. McGinnis EPA-HQ-OW-2009-0819-3685-A1 Private Citizen Lisa S. EPA-HQ-OW-2009-0819-3686-A1 Private Citizen S. and D. Richardson EPA-HQ-OW-2009-0819-3687-A1 Private Citizen C. D. Metzger EPA-HQ-OW-2009-0819-3688-A1 Private Citizen S. Cunningham EPA-HQ-OW-2009-0819-3689-A1 Private Citizen F. and A. Raetzer EPA-HQ-OW-2009-0819-3690-A1 Private Citizen R. Clemenzi EPA-HQ-OW-2009-0819-3691-A1 Private Citizen L. Leigh EPA-HQ-OW-2009-0819-3692-A1 Private Citizen A. Bonsall EPA-HQ-OW-2009-0819-3693-A1 Private Citizen D. Matesic EPA-HQ-OW-2009-0819-3694-A1 Private Citizen J. Falcon EPA-HQ-OW-2009-0819-3695-A1 Private Citizen A. Rushing EPA-HQ-OW-2009-0819-3696-A1 Private Citizen G. Griffith EPA-HQ-OW-2009-0819-3697-A1 Private Citizen L. Goldberg EPA-HQ-OW-2009-0819-3698-A1 Private Citizen Seirra Club Mass Mail EPA-HQ-OW-2009-0819-3699-A1 Private Citizen L. McEntee EPA-HQ-OW-2009-0819-3701-A1 Private Citizen Linda (surname illegible) EPA-HQ-OW-2009-0819-3702-A1 Private Citizen sponsoring organization unknown (paper) EPA-HQ-OW-2009-0819-3704-A1

Private Citizen S. Gaikezheyongai EPA-HQ-OW-2009-0819-3705-A1 Private Citizen D. Shankland EPA-HQ-OW-2009-0819-3706-A1 Private Citizen L. Hawkins EPA-HQ-OW-2009-0819-3707-A1 Private Citizen S. L. Nunes EPA-HQ-OW-2009-0819-3708-A1 Private Citizen J. Vieth EPA-HQ-OW-2009-0819-3709-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen R. Leonard EPA-HQ-OW-2009-0819-3710-A1 Private Citizen M. Caminiti EPA-HQ-OW-2009-0819-3711-A1 Private Citizen H. Coba EPA-HQ-OW-2009-0819-3712-A1 Private Citizen K. Hugenschmidt EPA-HQ-OW-2009-0819-3713-A1 Private Citizen J. Dowdy EPA-HQ-OW-2009-0819-3714-A1 Private Citizen B. and B. Ditzler EPA-HQ-OW-2009-0819-3715-A1 Private Citizen T. Wilson EPA-HQ-OW-2009-0819-3716-A1 Private Citizen N. Gilling EPA-HQ-OW-2009-0819-3719-A1 Private Citizen W. Byrd EPA-HQ-OW-2009-0819-3720-A1 Private Citizen M. Cavender EPA-HQ-OW-2009-0819-3721-A1 Private Citizen J. DePietto EPA-HQ-OW-2009-0819-3722-A1 Private Citizen J. Morse EPA-HQ-OW-2009-0819-3723-A1 Private Citizen D. Von Hoffman EPA-HQ-OW-2009-0819-3725-A1 Private Citizen J. Schuller EPA-HQ-OW-2009-0819-3726-A1 Private Citizen S. Westhoff EPA-HQ-OW-2009-0819-3727-A1 Private Citizen C. Armstrong EPA-HQ-OW-2009-0819-3728-A1 Private Citizen M. Berger EPA-HQ-OW-2009-0819-3730-A1 Private Citizen K. Baker EPA-HQ-OW-2009-0819-3731-A1 Private Citizen Y. Zhu EPA-HQ-OW-2009-0819-3732-A1 Private Citizen S. R. Reichow EPA-HQ-OW-2009-0819-3733-A1 Private Citizen R. Kingsley EPA-HQ-OW-2009-0819-3734-A1 Private Citizen U. Nilsen EPA-HQ-OW-2009-0819-3735-A1 Private Citizen D. Riehl EPA-HQ-OW-2009-0819-3736-A1 Private Citizen T. Fitzpatrick EPA-HQ-OW-2009-0819-3737-A1 Private Citizen A. Mayer EPA-HQ-OW-2009-0819-3738-A1 Private Citizen M. Schafer EPA-HQ-OW-2009-0819-3739-A1 Private Citizen D. M. Hickey EPA-HQ-OW-2009-0819-3740-A1 Private Citizen Ruth M. Phelps EPA-HQ-OW-2009-0819-3741-A1 Private Citizen Carla White EPA-HQ-OW-2009-0819-3742-A1 Private Citizen Jed Holtzman EPA-HQ-OW-2009-0819-3743-A1 Private Citizen Toby Hankin EPA-HQ-OW-2009-0819-3746-A1 Private Citizen Rebecca Hammond EPA-HQ-OW-2009-0819-3748-A1 Private Citizen Mary Breymann EPA-HQ-OW-2009-0819-3749-A1 Private Citizen Curt Volkmann EPA-HQ-OW-2009-0819-3750-A1 Private Citizen Sheila Dillon EPA-HQ-OW-2009-0819-3751-A1 Private Citizen D. Singer EPA-HQ-OW-2009-0819-3752-A1 Private Citizen William Dent EPA-HQ-OW-2009-0819-3753-A1 Private Citizen Glenn Marshall EPA-HQ-OW-2009-0819-3755-A1 Private Citizen Ellen Schousboe EPA-HQ-OW-2009-0819-3756-A1 Private Citizen Andy Bauer EPA-HQ-OW-2009-0819-3757-A1 Private Citizen Marcia Chuvarsky EPA-HQ-OW-2009-0819-3759-A1 Private Citizen Morita Bruce EPA-HQ-OW-2009-0819-3760-A1 Private Citizen J. Conlan EPA-HQ-OW-2009-0819-3762-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen L. DaCosta EPA-HQ-OW-2009-0819-3764-A1 Private Citizen N. Oliver EPA-HQ-OW-2009-0819-3765-A1 Private Citizen K. Tharin EPA-HQ-OW-2009-0819-3766-A1 Private Citizen J. Malacarne EPA-HQ-OW-2009-0819-3767-A1 Private Citizen J. Sexton EPA-HQ-OW-2009-0819-3769-A1 Private Citizen J. Nicely EPA-HQ-OW-2009-0819-3770-A1 Private Citizen K. Westman EPA-HQ-OW-2009-0819-3771-A1 Private Citizen M. Simpson EPA-HQ-OW-2009-0819-3772-A1 Private Citizen S. Bales EPA-HQ-OW-2009-0819-3773-A1 Private Citizen A. Unruh EPA-HQ-OW-2009-0819-3774-A1 Private Citizen A. Unruh EPA-HQ-OW-2009-0819-3775-A1 Private Citizen J. Heaps EPA-HQ-OW-2009-0819-3776-A1 Private Citizen H. Strong EPA-HQ-OW-2009-0819-3777-A1 Private Citizen S. Pavlick EPA-HQ-OW-2009-0819-3778-A1 Private Citizen C. Steele-Smith EPA-HQ-OW-2009-0819-3779-A1 Private Citizen D. Laurie EPA-HQ-OW-2009-0819-3780-A1 Private Citizen T. Hoefferle EPA-HQ-OW-2009-0819-3781-A1 Private Citizen L. Shalliker EPA-HQ-OW-2009-0819-3782-A1 Private Citizen K. Johnson EPA-HQ-OW-2009-0819-3783-A1 Private Citizen S. Russell-Seybert EPA-HQ-OW-2009-0819-3784-A1 Private Citizen E. Ferrell EPA-HQ-OW-2009-0819-3786-A1 Private Citizen P. Bossert EPA-HQ-OW-2009-0819-3788-A1 Private Citizen M. Hebblewhite EPA-HQ-OW-2009-0819-3789-A1 Private Citizen M. Weber EPA-HQ-OW-2009-0819-3790-A1 Private Citizen F. Schuetz EPA-HQ-OW-2009-0819-3791-A1 Private Citizen A. Neal EPA-HQ-OW-2009-0819-3792-A1 Private Citizen D. Fedoroff EPA-HQ-OW-2009-0819-3793-A1 Private Citizen P. Schexnayder EPA-HQ-OW-2009-0819-3794-A1 Private Citizen D. Selvaggio EPA-HQ-OW-2009-0819-3795-A1 Private Citizen S. Smith EPA-HQ-OW-2009-0819-3796-A1 Private Citizen J. Lam EPA-HQ-OW-2009-0819-3797-A1 Private Citizen M. Schmerling EPA-HQ-OW-2009-0819-3798-A1 Private Citizen M. Kottmeier EPA-HQ-OW-2009-0819-3799-A1 Private Citizen L. Chumley EPA-HQ-OW-2009-0819-3800-A1 Private Citizen K. Kay EPA-HQ-OW-2009-0819-3801-A1 Private Citizen J. Fairmont Yinger EPA-HQ-OW-2009-0819-3802-A1 Private Citizen S. Knowlton EPA-HQ-OW-2009-0819-3803-A1 Private Citizen V. Burns EPA-HQ-OW-2009-0819-3804-A1 Private Citizen K. Islam EPA-HQ-OW-2009-0819-3805-A1 Private Citizen M. J. Chaffee EPA-HQ-OW-2009-0819-3806-A1 Private Citizen M. McIntyre EPA-HQ-OW-2009-0819-3807-A1 Private Citizen J. Williams EPA-HQ-OW-2009-0819-3808-A1 Private Citizen J. Kemph EPA-HQ-OW-2009-0819-3809-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen P. Sturm EPA-HQ-OW-2009-0819-3810-A1 Private Citizen D. L. Grant EPA-HQ-OW-2009-0819-3811-A1 Private Citizen J. Marowitz EPA-HQ-OW-2009-0819-3812-A1 Private Citizen C. Aller EPA-HQ-OW-2009-0819-3813-A1 Private Citizen A. Miller EPA-HQ-OW-2009-0819-3814-A1 Private Citizen E. J. Pennington EPA-HQ-OW-2009-0819-3815-A1 Private Citizen J. Williams EPA-HQ-OW-2009-0819-3816-A1 Private Citizen L. Sabatino EPA-HQ-OW-2009-0819-3817-A1 Private Citizen E. Cohen EPA-HQ-OW-2009-0819-3818-A1 Private Citizen M. Miller EPA-HQ-OW-2009-0819-3819-A1 Private Citizen E. Hamann EPA-HQ-OW-2009-0819-3820-A1 Private Citizen D. Gordon EPA-HQ-OW-2009-0819-3821-A1 Private Citizen M. Brower EPA-HQ-OW-2009-0819-3822-A1 Private Citizen J. T. Silver EPA-HQ-OW-2009-0819-3824-A1 Private Citizen M. Pearson EPA-HQ-OW-2009-0819-3825-A1 Private Citizen Jerry K. (no surname provided) EPA-HQ-OW-2009-0819-3826-A1 Private Citizen J. Maul EPA-HQ-OW-2009-0819-3827-A1 Private Citizen S. Smith EPA-HQ-OW-2009-0819-3828-A1 Private Citizen P. and J. Bradshaw EPA-HQ-OW-2009-0819-3829-A1 Private Citizen D. Jellenik EPA-HQ-OW-2009-0819-3830-A1 Private Citizen J. Pesce EPA-HQ-OW-2009-0819-3831-A1 Private Citizen L. M. Olson EPA-HQ-OW-2009-0819-3832-A1 Private Citizen S. Pekarek EPA-HQ-OW-2009-0819-3833-A1 Private Citizen E. Leftwich EPA-HQ-OW-2009-0819-3834-A1 Private Citizen B. Jackson EPA-HQ-OW-2009-0819-3835-A1 Private Citizen A. Splitt EPA-HQ-OW-2009-0819-3836-A1 Private Citizen A. Lusby-Denham EPA-HQ-OW-2009-0819-3837-A1 Private Citizen C. Frizzelle EPA-HQ-OW-2009-0819-3838-A1 Private Citizen C. Bish EPA-HQ-OW-2009-0819-3839-A1 Private Citizen C. Birch EPA-HQ-OW-2009-0819-3840-A1 Private Citizen D. Free EPA-HQ-OW-2009-0819-3841-A1 Private Citizen E. Kimball EPA-HQ-OW-2009-0819-3842-A1 Private Citizen H. Sanborn EPA-HQ-OW-2009-0819-3843-A1 Private Citizen J. Botta EPA-HQ-OW-2009-0819-3844-A1 Private Citizen J. Dallas EPA-HQ-OW-2009-0819-3845-A1 Private Citizen J. LaPorte EPA-HQ-OW-2009-0819-3846-A1 Private Citizen J. Redpath EPA-HQ-OW-2009-0819-3847-A1 Private Citizen C. and K. Gencarelli EPA-HQ-OW-2009-0819-3848-A1 Private Citizen L. Towne EPA-HQ-OW-2009-0819-3849-A1 Private Citizen M. K. McCann EPA-HQ-OW-2009-0819-3850-A1 Private Citizen T. Devoto EPA-HQ-OW-2009-0819-3852-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-3853 Private Citizen Anonymous EPA-HQ-OW-2009-0819-3854Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen J. Lee EPA-HQ-OW-2009-0819-3855 Private Citizen W. Teel EPA-HQ-OW-2009-0819-3856-A1 Private Citizen D. Wagner EPA-HQ-OW-2009-0819-3857-A1 Private Citizen E. Ritzman EPA-HQ-OW-2009-0819-3858-A1 Private Citizen B. Surunga EPA-HQ-OW-2009-0819-3860-A1 Private Citizen C. Cocks EPA-HQ-OW-2009-0819-3861-A1 Private Citizen K. Trout EPA-HQ-OW-2009-0819-3862-A1 Private Citizen A. McGarrity EPA-HQ-OW-2009-0819-3863-A1 Private Citizen C. May EPA-HQ-OW-2009-0819-3864-A1 Private Citizen V. Gardner EPA-HQ-OW-2009-0819-3865-A1 Private Citizen E. L. Bates EPA-HQ-OW-2009-0819-3866-A1 Private Citizen P. Ward EPA-HQ-OW-2009-0819-3867-A1 Private Citizen J. Marion EPA-HQ-OW-2009-0819-3868-A1 Private Citizen C. Garden EPA-HQ-OW-2009-0819-3869-A1 Private Citizen J. Hiebert EPA-HQ-OW-2009-0819-3870-A1 Private Citizen D. Esopi EPA-HQ-OW-2009-0819-3871-A1 Private Citizen D. Curry EPA-HQ-OW-2009-0819-3872-A1 Private Citizen T. Mackenzie EPA-HQ-OW-2009-0819-3873-A1 Private Citizen S. Bowyer EPA-HQ-OW-2009-0819-3874-A1 Private Citizen M. Pollock EPA-HQ-OW-2009-0819-3875-A1 Private Citizen M. A. Deck EPA-HQ-OW-2009-0819-3876-A1 Private Citizen M. Quinlan EPA-HQ-OW-2009-0819-3878-A1 Private Citizen L. Pei EPA-HQ-OW-2009-0819-3879-A1 Private Citizen C. White EPA-HQ-OW-2009-0819-3880-A1 Private Citizen C. Clough EPA-HQ-OW-2009-0819-3881-A1 Private Citizen J. Scott EPA-HQ-OW-2009-0819-3882-A1 Private Citizen C. Yang EPA-HQ-OW-2009-0819-3883-A1 Private Citizen S. Epperson EPA-HQ-OW-2009-0819-3884-A1 Private Citizen M. McGlone EPA-HQ-OW-2009-0819-3885-A1 Private Citizen J. Magruder EPA-HQ-OW-2009-0819-3886-A1 Private Citizen C. Glennon EPA-HQ-OW-2009-0819-3887-A1 Private Citizen L. Brown EPA-HQ-OW-2009-0819-3889-A1 Private Citizen R. S. Myers EPA-HQ-OW-2009-0819-3890-A1 Private Citizen D. Cherry EPA-HQ-OW-2009-0819-3891-A1 Private Citizen N. Gladfelter EPA-HQ-OW-2009-0819-3892-A1 Private Citizen E. Wenocur EPA-HQ-OW-2009-0819-3893-A1 Private Citizen D. Graham EPA-HQ-OW-2009-0819-3894-A1 Private Citizen N. Cargill EPA-HQ-OW-2009-0819-3895-A1 Private Citizen B. Smith EPA-HQ-OW-2009-0819-3896-A1 Private Citizen E. Shenk EPA-HQ-OW-2009-0819-3897-A1 Private Citizen F. Brown EPA-HQ-OW-2009-0819-3899-A1 Private Citizen K. LaClair EPA-HQ-OW-2009-0819-3900-A1 Private Citizen B. Temmink EPA-HQ-OW-2009-0819-3902-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen E. Fons EPA-HQ-OW-2009-0819-3903-A1 Private Citizen Melaine (no surname provided) EPA-HQ-OW-2009-0819-3904-A1 Private Citizen J. Simon EPA-HQ-OW-2009-0819-3905-A1 Private Citizen K. Howard EPA-HQ-OW-2009-0819-3906-A1 Private Citizen H. Hickman EPA-HQ-OW-2009-0819-3907-A1 Private Citizen T. C. Cowan EPA-HQ-OW-2009-0819-3908-A1 Private Citizen R. Oldenquist EPA-HQ-OW-2009-0819-3909-A1 Private Citizen C. Justice EPA-HQ-OW-2009-0819-3910-A1 Private Citizen K. Connor-McKee EPA-HQ-OW-2009-0819-3911-A1 Private Citizen E. Paulsen EPA-HQ-OW-2009-0819-3913-A1 Private Citizen B. Block EPA-HQ-OW-2009-0819-3914-A1 Private Citizen E. Bromley EPA-HQ-OW-2009-0819-3915-A1 Private Citizen M. Schmerling EPA-HQ-OW-2009-0819-3916-A1 Private Citizen H. Sutherland EPA-HQ-OW-2009-0819-3917-A1 Private Citizen C. Carrier EPA-HQ-OW-2009-0819-3918-A1 Private Citizen R. Briggs EPA-HQ-OW-2009-0819-3919 Private Citizen Disha Banik EPA-HQ-OW-2009-0819-3920-A10 Private Citizen Earle Mitchell EPA-HQ-OW-2009-0819-3920-A12 Private Citizen Ernest Lehmann EPA-HQ-OW-2009-0819-3920-A16 Private Citizen John Brockhouse EPA-HQ-OW-2009-0819-3920-A22 Private Citizen Dalal Aboulhosn EPA-HQ-OW-2009-0819-3920-A8 Private Citizen T. C. Sugrue EPA-HQ-OW-2009-0819-3921-A1 Private Citizen C. Arvidson EPA-HQ-OW-2009-0819-3924-A1 Private Citizen C. Allison EPA-HQ-OW-2009-0819-3925-A1 Private Citizen C. McGovern EPA-HQ-OW-2009-0819-3926-A1 Private Citizen S. Necessary EPA-HQ-OW-2009-0819-3927-A1 Private Citizen A. Runde EPA-HQ-OW-2009-0819-3928-A1 Private Citizen C. Harrington EPA-HQ-OW-2009-0819-3929-A1 Private Citizen E. Booth EPA-HQ-OW-2009-0819-3930-A1 Private Citizen J. Roberts EPA-HQ-OW-2009-0819-3931-A1 Private Citizen M. B. Hardy EPA-HQ-OW-2009-0819-3932-A1 Private Citizen L. A. Phelps EPA-HQ-OW-2009-0819-3933-A1 Private Citizen L. Baker EPA-HQ-OW-2009-0819-3934-A1 Private Citizen D. Heckman EPA-HQ-OW-2009-0819-3935-A1 Private Citizen J. Smiley EPA-HQ-OW-2009-0819-3936-A1 Private Citizen C. Vaun EPA-HQ-OW-2009-0819-3937-A1 Private Citizen P. Crawshaw EPA-HQ-OW-2009-0819-3938-A1 Private Citizen A. Lian EPA-HQ-OW-2009-0819-3939-A1 Private Citizen R. Hoerz EPA-HQ-OW-2009-0819-3940-A1 Private Citizen J. Williams EPA-HQ-OW-2009-0819-3941-A1 Private Citizen L. Voelker EPA-HQ-OW-2009-0819-3942-A1 Private Citizen J. McGlinn EPA-HQ-OW-2009-0819-3943-A1 Private Citizen P. Schoaff EPA-HQ-OW-2009-0819-3944-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen J. Bayless EPA-HQ-OW-2009-0819-3945-A1 Private Citizen J. Tyne-Zimmerman EPA-HQ-OW-2009-0819-3946-A1 Private Citizen P. Jordan EPA-HQ-OW-2009-0819-3947-A1 Private Citizen S. Dollar EPA-HQ-OW-2009-0819-3948-A1 Private Citizen E. Lane EPA-HQ-OW-2009-0819-3949-A1 Private Citizen R. Sutherland EPA-HQ-OW-2009-0819-3950-A1 Private Citizen M. Spiegel EPA-HQ-OW-2009-0819-3951-A1 Private Citizen A. Orozco EPA-HQ-OW-2009-0819-3954-A1 Private Citizen ent EPA-HQ-OW-2009-0819-3955-A1 Private Citizen D. Zega EPA-HQ-OW-2009-0819-3956-A1 Private Citizen R. Duryea EPA-HQ-OW-2009-0819-3957-A1 Private Citizen K. Call EPA-HQ-OW-2009-0819-3958-A1 Private Citizen G. Hargis EPA-HQ-OW-2009-0819-3959-A1 Private Citizen B. Morales EPA-HQ-OW-2009-0819-3960-A1 Private Citizen C. Nowlin EPA-HQ-OW-2009-0819-3961-A1 Private Citizen I. Seigel EPA-HQ-OW-2009-0819-3962-A1 Private Citizen M. Szilvagyi EPA-HQ-OW-2009-0819-3963-A1 Private Citizen T. Stanley EPA-HQ-OW-2009-0819-3964-A1 Private Citizen H. Schoenhoff EPA-HQ-OW-2009-0819-3965-A1 Private Citizen P. Cooper EPA-HQ-OW-2009-0819-3966-A1 Private Citizen S. Shapard EPA-HQ-OW-2009-0819-3967-A1 Private Citizen R. Miller EPA-HQ-OW-2009-0819-3968-A1 Private Citizen K. Blackwell EPA-HQ-OW-2009-0819-3969-A1 Private Citizen L. Lavallee EPA-HQ-OW-2009-0819-3970-A1 Private Citizen S. Gilliam EPA-HQ-OW-2009-0819-3971-A1 Private Citizen B. Foster EPA-HQ-OW-2009-0819-3972-A1 Private Citizen B. Coulson EPA-HQ-OW-2009-0819-3973-A1 Private Citizen K. Blythe EPA-HQ-OW-2009-0819-3974-A1 Private Citizen C. Klein EPA-HQ-OW-2009-0819-3975-A1 Private Citizen C. Paynter EPA-HQ-OW-2009-0819-3976-A1 Private Citizen M. Hartman EPA-HQ-OW-2009-0819-3977-A1 Private Citizen K. Baird EPA-HQ-OW-2009-0819-3978-A1 Private Citizen N. Torrey EPA-HQ-OW-2009-0819-3979-A1 Private Citizen C. Simard EPA-HQ-OW-2009-0819-3980-A1 Private Citizen T. Siebers EPA-HQ-OW-2009-0819-3981-A1 Private Citizen T. M. Matic EPA-HQ-OW-2009-0819-3982-A1 Private Citizen B. Herring EPA-HQ-OW-2009-0819-3983-A1 Private Citizen V. Motsinger EPA-HQ-OW-2009-0819-3984-A1 Private Citizen A. Burns EPA-HQ-OW-2009-0819-3985-A1 Private Citizen R. & D. Shew EPA-HQ-OW-2009-0819-3986-A1 Private Citizen R. Richards EPA-HQ-OW-2009-0819-3988-A1 Private Citizen L. Moyer EPA-HQ-OW-2009-0819-3989-A1 Private Citizen R. Pollock EPA-HQ-OW-2009-0819-3990-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen B. Fetzer EPA-HQ-OW-2009-0819-3991-A1 Private Citizen C. Mastro EPA-HQ-OW-2009-0819-3992-A1 Private Citizen H. Livingston EPA-HQ-OW-2009-0819-3993-A1 Private Citizen B. Robertson EPA-HQ-OW-2009-0819-3994-A1 Private Citizen F. Ragan EPA-HQ-OW-2009-0819-3995-A1 Private Citizen M. Halloran EPA-HQ-OW-2009-0819-3996-A1 Private Citizen M. Neufer EPA-HQ-OW-2009-0819-3997-A1 Private Citizen K. Kilburn EPA-HQ-OW-2009-0819-3998-A1 Private Citizen K. Lundin EPA-HQ-OW-2009-0819-3999-A1 Private Citizen P. Kelly EPA-HQ-OW-2009-0819-4000-A1 Private Citizen F. Schlabach EPA-HQ-OW-2009-0819-4001-A1 Private Citizen C. Smelter EPA-HQ-OW-2009-0819-4002-A1 Private Citizen C. Milor EPA-HQ-OW-2009-0819-4003-A1 Private Citizen P. Mcarthur EPA-HQ-OW-2009-0819-4004-A1 Private Citizen M. L. Powell EPA-HQ-OW-2009-0819-4005-A1 Private Citizen S. Bondurant EPA-HQ-OW-2009-0819-4007-A1 Private Citizen J. DeKing EPA-HQ-OW-2009-0819-4008-A1 Private Citizen E. Ingram-Edwards EPA-HQ-OW-2009-0819-4009-A1 Private Citizen B. Fleming EPA-HQ-OW-2009-0819-4010-A1 Private Citizen E. Hostetler EPA-HQ-OW-2009-0819-4011-A1 Private Citizen D. Kitch EPA-HQ-OW-2009-0819-4012-A1 Private Citizen C. Hunt EPA-HQ-OW-2009-0819-4013-A1 Private Citizen C. Christian EPA-HQ-OW-2009-0819-4014-A1 Private Citizen J. Lugg EPA-HQ-OW-2009-0819-4015-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-4016 Private Citizen E. Barrow EPA-HQ-OW-2009-0819-4017-A1 Private Citizen G. Burazer EPA-HQ-OW-2009-0819-4019-A1 Private Citizen S. French EPA-HQ-OW-2009-0819-4020-A1 Private Citizen A. Corlew EPA-HQ-OW-2009-0819-4021-A1 Private Citizen D. Mayer EPA-HQ-OW-2009-0819-4023-A1 Private Citizen J. M. Austell EPA-HQ-OW-2009-0819-4024-A1 Private Citizen R. Klemmer EPA-HQ-OW-2009-0819-4025-A1 Private Citizen A. Andrews EPA-HQ-OW-2009-0819-4026-A1 Private Citizen B. Kardell EPA-HQ-OW-2009-0819-4027-A1 Private Citizen S. Paul EPA-HQ-OW-2009-0819-4030-A1 Private Citizen D. Steege EPA-HQ-OW-2009-0819-4031-A1 Private Citizen J. Loar EPA-HQ-OW-2009-0819-4032-A1 Private Citizen J. Caldwell EPA-HQ-OW-2009-0819-4035-A1 Private Citizen H. Deal EPA-HQ-OW-2009-0819-4036-A1 Private Citizen J. Hennessee EPA-HQ-OW-2009-0819-4037-A1 Private Citizen S. Thomas EPA-HQ-OW-2009-0819-4038-A1 Private Citizen S. Barnhizer EPA-HQ-OW-2009-0819-4040-A1 Private Citizen K. Dunn EPA-HQ-OW-2009-0819-4041-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen ent EPA-HQ-OW-2009-0819-4042 Private Citizen J. and P. Canning EPA-HQ-OW-2009-0819-4043-A1 Private Citizen J. and P. Canning EPA-HQ-OW-2009-0819-4044-A1 Private Citizen H. Tillman EPA-HQ-OW-2009-0819-4045-A1 Private Citizen D. German EPA-HQ-OW-2009-0819-4046-A1 Private Citizen N. Hoop EPA-HQ-OW-2009-0819-4047-A1 Private Citizen M. Sibel EPA-HQ-OW-2009-0819-4048-A1 Private Citizen J. Center EPA-HQ-OW-2009-0819-4049-A1 Private Citizen K. Hill EPA-HQ-OW-2009-0819-4050-A1 Private Citizen C. Levesque EPA-HQ-OW-2009-0819-4051-A1 Private Citizen L. J. Southerton EPA-HQ-OW-2009-0819-4052-A1 Private Citizen J. Piscitelli EPA-HQ-OW-2009-0819-4053-A1 Private Citizen S. Abrams EPA-HQ-OW-2009-0819-4054-A1 Private Citizen C. Reed EPA-HQ-OW-2009-0819-4055-A1 Private Citizen P. Motzenbecker EPA-HQ-OW-2009-0819-4056-A1 Private Citizen J. Ventre EPA-HQ-OW-2009-0819-4057-A1 Private Citizen H. French EPA-HQ-OW-2009-0819-4058-A1 Private Citizen Y. Scott EPA-HQ-OW-2009-0819-4059-A1 Private Citizen D. Potter EPA-HQ-OW-2009-0819-4060-A1 Private Citizen K. Wagner EPA-HQ-OW-2009-0819-4061-A1 Private Citizen M. Brakeman EPA-HQ-OW-2009-0819-4062-A1 Private Citizen S. Perlman EPA-HQ-OW-2009-0819-4063-A1 Private Citizen M. Jackson EPA-HQ-OW-2009-0819-4064-A1 Private Citizen J. Brennan EPA-HQ-OW-2009-0819-4065-A1 Private Citizen T. Deibert EPA-HQ-OW-2009-0819-4066-A1 Private Citizen M. Sullivan EPA-HQ-OW-2009-0819-4067-A1 Private Citizen W. Boalt EPA-HQ-OW-2009-0819-4068-A1 Private Citizen M. Napier EPA-HQ-OW-2009-0819-4069-A1 Private Citizen D. Forsyth EPA-HQ-OW-2009-0819-4070-A1 Private Citizen M. Lightfoot EPA-HQ-OW-2009-0819-4071-A1 Private Citizen D. Whitson EPA-HQ-OW-2009-0819-4072-A1 Private Citizen M. Melton EPA-HQ-OW-2009-0819-4073-A1 Private Citizen J. Arbogast EPA-HQ-OW-2009-0819-4074-A1 Private Citizen M. Weaver EPA-HQ-OW-2009-0819-4075-A1 Private Citizen L. Wolfgang EPA-HQ-OW-2009-0819-4076-A1 Private Citizen C. Kerr EPA-HQ-OW-2009-0819-4077-A1 Private Citizen C. Jackson EPA-HQ-OW-2009-0819-4078-A1 Private Citizen K. Murray EPA-HQ-OW-2009-0819-4079-A1 Private Citizen R. Redfearn EPA-HQ-OW-2009-0819-4080-A1 Private Citizen R. Booker EPA-HQ-OW-2009-0819-4081-A1 Private Citizen K. McCord EPA-HQ-OW-2009-0819-4082-A1 Private Citizen B. Warner EPA-HQ-OW-2009-0819-4083-A1 Private Citizen D. Little EPA-HQ-OW-2009-0819-4084-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen R. Tran EPA-HQ-OW-2009-0819-4085-A1 Private Citizen A. Carothers EPA-HQ-OW-2009-0819-4086-A1 Private Citizen L. Smith EPA-HQ-OW-2009-0819-4087-A1 Private Citizen O. Swingler EPA-HQ-OW-2009-0819-4088-A1 Private Citizen R. Clarke EPA-HQ-OW-2009-0819-4089-A1 Private Citizen N. Kemeny EPA-HQ-OW-2009-0819-4091-A1 Private Citizen R. Barr EPA-HQ-OW-2009-0819-4092-A1 Private Citizen C. Harris EPA-HQ-OW-2009-0819-4093-A1 Private Citizen P. Pennell EPA-HQ-OW-2009-0819-4094-A1 Private Citizen J. Herbers EPA-HQ-OW-2009-0819-4095-A1 Private Citizen M. Miller EPA-HQ-OW-2009-0819-4096-A1 Private Citizen T. Laura EPA-HQ-OW-2009-0819-4097-A1 Private Citizen C. Self EPA-HQ-OW-2009-0819-4098-A1 Private Citizen J. Canon EPA-HQ-OW-2009-0819-4099-A1 Private Citizen P. Driscoll EPA-HQ-OW-2009-0819-4100-A1 Private Citizen B. Miller EPA-HQ-OW-2009-0819-4101-A1 Private Citizen H. Squires EPA-HQ-OW-2009-0819-4102-A1 Private Citizen M. Mills EPA-HQ-OW-2009-0819-4103-A1 Private Citizen I. Klink EPA-HQ-OW-2009-0819-4104-A1 Private Citizen C. Streeter EPA-HQ-OW-2009-0819-4105-A1 Private Citizen K. Chen EPA-HQ-OW-2009-0819-4106-A1 Private Citizen K. Karra EPA-HQ-OW-2009-0819-4107-A1 Private Citizen P. Nyland EPA-HQ-OW-2009-0819-4108-A1 Private Citizen D. Bosetti EPA-HQ-OW-2009-0819-4109-A1 Private Citizen R. Taylor EPA-HQ-OW-2009-0819-4110-A1 Private Citizen C. Metcalf EPA-HQ-OW-2009-0819-4111-A1 Private Citizen D. Gedra EPA-HQ-OW-2009-0819-4112-A1 Private Citizen S. Gellert EPA-HQ-OW-2009-0819-4113-A1 Private Citizen B. Graves EPA-HQ-OW-2009-0819-4114-A1 Private Citizen R. Abrahamson EPA-HQ-OW-2009-0819-4115-A1 Private Citizen L. Fisher EPA-HQ-OW-2009-0819-4117-A1 Private Citizen N. Lamarca EPA-HQ-OW-2009-0819-4118-A1 Private Citizen A. Pellerito EPA-HQ-OW-2009-0819-4119-A1 Private Citizen C. Hafer EPA-HQ-OW-2009-0819-4120-A1 Private Citizen M. Pellegrino EPA-HQ-OW-2009-0819-4121-A1 Private Citizen L. Haynes EPA-HQ-OW-2009-0819-4122-A1 Private Citizen L. Velwest EPA-HQ-OW-2009-0819-4124-A1 Private Citizen M. Colburn EPA-HQ-OW-2009-0819-4125-A1 Private Citizen A. Bauer EPA-HQ-OW-2009-0819-4126-A1 Private Citizen J. Lukasiewicz EPA-HQ-OW-2009-0819-4127-A1 Private Citizen E. Edgett III EPA-HQ-OW-2009-0819-4128-A1 Private Citizen D. Reeves EPA-HQ-OW-2009-0819-4129-A1 Private Citizen J. Danforth EPA-HQ-OW-2009-0819-4131-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen A. Phillips EPA-HQ-OW-2009-0819-4132-A1 Private Citizen K. Aschheim EPA-HQ-OW-2009-0819-4133-A1 Private Citizen M. Kooistra EPA-HQ-OW-2009-0819-4134-A1 Private Citizen G. Gerritt EPA-HQ-OW-2009-0819-4135-A1 Private Citizen W. Cleveland EPA-HQ-OW-2009-0819-4137-A1 Private Citizen P. White EPA-HQ-OW-2009-0819-4138-A1 Private Citizen N. Lytle EPA-HQ-OW-2009-0819-4139-A1 Private Citizen Mark D. (no surname provided) EPA-HQ-OW-2009-0819-4141-A1 Private Citizen D. Moldover EPA-HQ-OW-2009-0819-4142-A1 Private Citizen L. Green EPA-HQ-OW-2009-0819-4143-A1 Private Citizen B. Pasicznyk EPA-HQ-OW-2009-0819-4146-A1 Private Citizen A. Mironov EPA-HQ-OW-2009-0819-4147-A1 Private Citizen A. H. (no surname provided) EPA-HQ-OW-2009-0819-4149-A1 Private Citizen G. Marquez EPA-HQ-OW-2009-0819-4150-A1 Private Citizen J. Baker EPA-HQ-OW-2009-0819-4151-A1 Private Citizen R. S. Smith EPA-HQ-OW-2009-0819-4152-A1 Private Citizen S. Gagne EPA-HQ-OW-2009-0819-4153-A1 Private Citizen C. Stolen EPA-HQ-OW-2009-0819-4154-A1 Private Citizen S. Merkle EPA-HQ-OW-2009-0819-4155-A1 Private Citizen S. Hammond EPA-HQ-OW-2009-0819-4156-A1 Private Citizen V. Hari EPA-HQ-OW-2009-0819-4157-A1 Private Citizen B. Doerr EPA-HQ-OW-2009-0819-4158-A1 Private Citizen C. Ogburn EPA-HQ-OW-2009-0819-4159-A1 Private Citizen A. Jackson EPA-HQ-OW-2009-0819-4160-A1 Private Citizen N. Zaremba EPA-HQ-OW-2009-0819-4162-A1 Private Citizen S. Ganong EPA-HQ-OW-2009-0819-4163-A1 Private Citizen R. Heiser EPA-HQ-OW-2009-0819-4165-A1 Private Citizen M. Otten EPA-HQ-OW-2009-0819-4166-A1 Private Citizen P. Carl EPA-HQ-OW-2009-0819-4167-A1 Private Citizen B. Curlin EPA-HQ-OW-2009-0819-4168-A1 Private Citizen S. DiCarlo EPA-HQ-OW-2009-0819-4169-A1 Private Citizen K. Yoskowitz EPA-HQ-OW-2009-0819-4171-A1 Private Citizen M. Devereaux EPA-HQ-OW-2009-0819-4172-A1 Private Citizen W. Westervelt EPA-HQ-OW-2009-0819-4173-A1 Private Citizen D. Lutz EPA-HQ-OW-2009-0819-4174-A1 Private Citizen P. Schuyler EPA-HQ-OW-2009-0819-4175-A1 Private Citizen W. Gupton EPA-HQ-OW-2009-0819-4187-A1 Private Citizen J. Dodenhoff EPA-HQ-OW-2009-0819-4188-A1 Private Citizen P. Howard EPA-HQ-OW-2009-0819-4189-A1 Private Citizen J. Morian EPA-HQ-OW-2009-0819-4190-A1 Private Citizen B. Berman EPA-HQ-OW-2009-0819-4191-A1 Private Citizen L. Fleming EPA-HQ-OW-2009-0819-4192-A1 Private Citizen N. Rapp EPA-HQ-OW-2009-0819-4193-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen C. D. Beck EPA-HQ-OW-2009-0819-4194 Private Citizen J. Benjamin EPA-HQ-OW-2009-0819-4197-A1 Private Citizen D. Sterner EPA-HQ-OW-2009-0819-4198-A1 Private Citizen M. Smith EPA-HQ-OW-2009-0819-4199-A1 Private Citizen S. Mathur EPA-HQ-OW-2009-0819-4200-A1 Private Citizen E. Litten EPA-HQ-OW-2009-0819-4201-A1 Private Citizen N. Witt-Johnson EPA-HQ-OW-2009-0819-4202-A1 Private Citizen D. Wyaff EPA-HQ-OW-2009-0819-4203-A1 Private Citizen T. Partridge EPA-HQ-OW-2009-0819-4204-A1 Private Citizen D. B. Mullins EPA-HQ-OW-2009-0819-4205-A1 Private Citizen R. Shay EPA-HQ-OW-2009-0819-4206-A1 Private Citizen M. Howard EPA-HQ-OW-2009-0819-4207-A1 Private Citizen F. LaRoche EPA-HQ-OW-2009-0819-4208-A1 Private Citizen A. Georgetti EPA-HQ-OW-2009-0819-4209-A1 Private Citizen D. Cole EPA-HQ-OW-2009-0819-4210-A1 Private Citizen M. Voit EPA-HQ-OW-2009-0819-4213-A1 Private Citizen J. King EPA-HQ-OW-2009-0819-4214-A1 Private Citizen D. Slowey EPA-HQ-OW-2009-0819-4215-A1 Private Citizen E. Mubeaied EPA-HQ-OW-2009-0819-4216-A1 Private Citizen A. Rappaport EPA-HQ-OW-2009-0819-4217-A1 Private Citizen R. Dennis EPA-HQ-OW-2009-0819-4218-A1 Private Citizen Adrian Noble EPA-HQ-OW-2009-0819-4219-A1 Private Citizen M. Mc Quaid-Forsman EPA-HQ-OW-2009-0819-4220-A1 Private Citizen C. Garside EPA-HQ-OW-2009-0819-4221-A1 Private Citizen P. Parker EPA-HQ-OW-2009-0819-4222-A1 Private Citizen B. G. Vinson EPA-HQ-OW-2009-0819-4223-A1 Private Citizen J. Owens EPA-HQ-OW-2009-0819-4224-A1 Private Citizen G. Fabbri EPA-HQ-OW-2009-0819-4225-A1 Private Citizen D. Kasunic EPA-HQ-OW-2009-0819-4226-A1 Private Citizen R. Learner EPA-HQ-OW-2009-0819-4227-A1 Private Citizen D. Scoville EPA-HQ-OW-2009-0819-4228-A1 Private Citizen M. Lackey EPA-HQ-OW-2009-0819-4229-A1 Private Citizen K. Lang EPA-HQ-OW-2009-0819-4230-A1 Private Citizen S. Syrett EPA-HQ-OW-2009-0819-4231-A1 Private Citizen C. Nelson EPA-HQ-OW-2009-0819-4232-A1 Private Citizen M. Ann Pastore EPA-HQ-OW-2009-0819-4233-A1 Private Citizen N. Hopwood EPA-HQ-OW-2009-0819-4234-A1 Private Citizen B. Sabo EPA-HQ-OW-2009-0819-4235-A1 Private Citizen K. Katrinak EPA-HQ-OW-2009-0819-4236-A1 Private Citizen M. Ross EPA-HQ-OW-2009-0819-4237-A1 Private Citizen B. Cameron EPA-HQ-OW-2009-0819-4238-A1 Private Citizen D. Emmons EPA-HQ-OW-2009-0819-4239-A1 Private Citizen J. Singer EPA-HQ-OW-2009-0819-4240-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen M. Malecki EPA-HQ-OW-2009-0819-4241-A1 Private Citizen G. Hayes EPA-HQ-OW-2009-0819-4242-A1 Private Citizen N. Gillespie EPA-HQ-OW-2009-0819-4243-A1 Private Citizen R. Jacklyn EPA-HQ-OW-2009-0819-4244-A1 Private Citizen A. Grodzinsky EPA-HQ-OW-2009-0819-4246-A1 Private Citizen P. Kuczynski EPA-HQ-OW-2009-0819-4247-A1 Private Citizen V. Gotaskie EPA-HQ-OW-2009-0819-4249-A1 Private Citizen J. Wysocki EPA-HQ-OW-2009-0819-4250-A1 Private Citizen A. Ross EPA-HQ-OW-2009-0819-4251-A1 Private Citizen M. Desanti EPA-HQ-OW-2009-0819-4253-A1 Private Citizen N. and L. Adams EPA-HQ-OW-2009-0819-4254-A1 Private Citizen J. Campbell EPA-HQ-OW-2009-0819-4255-A1 Private Citizen D. Gray EPA-HQ-OW-2009-0819-4256-A1 Private Citizen B. Wellman EPA-HQ-OW-2009-0819-4257-A1 Private Citizen M. Schmerling EPA-HQ-OW-2009-0819-4258-A1 Private Citizen T. Adam EPA-HQ-OW-2009-0819-4259-A1 Private Citizen K. Mullin EPA-HQ-OW-2009-0819-4260-A1 Private Citizen G. Quist EPA-HQ-OW-2009-0819-4262-A1 Private Citizen B. Crowe EPA-HQ-OW-2009-0819-4263-A1 Private Citizen L. Matuco EPA-HQ-OW-2009-0819-4264-A1 Private Citizen Deborah B. (surname not provided) EPA-HQ-OW-2009-0819-4265-A1

Private Citizen G. Pohly EPA-HQ-OW-2009-0819-4266-A1 Private Citizen D. B. Mullins EPA-HQ-OW-2009-0819-4267-A1 Private Citizen J. and B. Ostroth EPA-HQ-OW-2009-0819-4268-A1 Private Citizen K. Milton EPA-HQ-OW-2009-0819-4269-A1 Private Citizen N. Pettingill EPA-HQ-OW-2009-0819-4271-A1 Private Citizen M. Bernhard EPA-HQ-OW-2009-0819-4272-A1 Private Citizen P. Roberts EPA-HQ-OW-2009-0819-4274-A1 Private Citizen T. Peck EPA-HQ-OW-2009-0819-4275-A1 Private Citizen A. Renton EPA-HQ-OW-2009-0819-4276-A1 Private Citizen E. Kin EPA-HQ-OW-2009-0819-4277-A1 Private Citizen S. Pietrowski EPA-HQ-OW-2009-0819-4278-A1 Private Citizen L. Kade EPA-HQ-OW-2009-0819-4279-A1 Private Citizen J. Kramer EPA-HQ-OW-2009-0819-4280-A1 Private Citizen P. Madrigal EPA-HQ-OW-2009-0819-4281-A1 Private Citizen C. D. Beck EPA-HQ-OW-2009-0819-4284-A1 Private Citizen S. Brown EPA-HQ-OW-2009-0819-4286-A1 Private Citizen D. Rienstra EPA-HQ-OW-2009-0819-4287-A1 Private Citizen L. Goodwin EPA-HQ-OW-2009-0819-4288-A1 Private Citizen A. Evans EPA-HQ-OW-2009-0819-4289-A1 Private Citizen L. Goodwin EPA-HQ-OW-2009-0819-4291-A1 Private Citizen D. Thomas EPA-HQ-OW-2009-0819-4292-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen P. Turner EPA-HQ-OW-2009-0819-4293-A1 Private Citizen H. Doerksen EPA-HQ-OW-2009-0819-4294-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-4295-A1 Private Citizen M. McCarthy EPA-HQ-OW-2009-0819-4296-A1 Private Citizen D. Walthers EPA-HQ-OW-2009-0819-4297-A1 Private Citizen R. Reid EPA-HQ-OW-2009-0819-4299-A1 Private Citizen S. Huybensz EPA-HQ-OW-2009-0819-4300-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-4302 Private Citizen B. Frazier EPA-HQ-OW-2009-0819-4306-A1 Private Citizen Joanne J. (surname not provided) EPA-HQ-OW-2009-0819-4307-A1

Private Citizen K. Gaston EPA-HQ-OW-2009-0819-4308 Private Citizen B. Morales EPA-HQ-OW-2009-0819-4311 Private Citizen G. and F. Joines EPA-HQ-OW-2009-0819-4312 Private Citizen M. Wilson EPA-HQ-OW-2009-0819-4313 Private Citizen H. Boyle EPA-HQ-OW-2009-0819-4314 Private Citizen A. Brown EPA-HQ-OW-2009-0819-4315 Private Citizen B. and M. Wrenn EPA-HQ-OW-2009-0819-4316 Private Citizen J. Vilis EPA-HQ-OW-2009-0819-4318 Private Citizen D. Hoffman EPA-HQ-OW-2009-0819-4319 Private Citizen J. Rhyne EPA-HQ-OW-2009-0819-4320 Private Citizen N. Witter EPA-HQ-OW-2009-0819-4321-A1 Private Citizen L. Sorensen EPA-HQ-OW-2009-0819-4322-A1 Private Citizen G. Anderson EPA-HQ-OW-2009-0819-4323-A1 Private Citizen C. Stancek EPA-HQ-OW-2009-0819-4324-A1 Private Citizen B. Michaelis EPA-HQ-OW-2009-0819-4325-A1 Private Citizen J. Warrilow EPA-HQ-OW-2009-0819-4326-A1 Private Citizen A. Monfalcone EPA-HQ-OW-2009-0819-4327-A1 Private Citizen B. Ouden EPA-HQ-OW-2009-0819-4328-A1 Private Citizen P. Ianniello EPA-HQ-OW-2009-0819-4329-A1 Private Citizen C. Villalovoz EPA-HQ-OW-2009-0819-4331-A1 Private Citizen J. Parkhurst EPA-HQ-OW-2009-0819-4332-A1 Private Citizen T. A. Madsen EPA-HQ-OW-2009-0819-4333-A1 Private Citizen H. D. Shumaker EPA-HQ-OW-2009-0819-4334-A1 Private Citizen R. Stahlke EPA-HQ-OW-2009-0819-4335-A1 Private Citizen C. Jansen EPA-HQ-OW-2009-0819-4336-A1 Private Citizen M. Madison EPA-HQ-OW-2009-0819-4338-A1 Private Citizen D. Zinni EPA-HQ-OW-2009-0819-4341-A1 Private Citizen S. D. Bennett EPA-HQ-OW-2009-0819-4342-A1 Private Citizen R. Gilden EPA-HQ-OW-2009-0819-4343-A1 Private Citizen S. Asmus EPA-HQ-OW-2009-0819-4345-A1 Private Citizen B. and S. Fuqua EPA-HQ-OW-2009-0819-4346 Private Citizen W. Watkins EPA-HQ-OW-2009-0819-4347Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen C. Dantes EPA-HQ-OW-2009-0819-4350-A1 Private Citizen W. Sirch EPA-HQ-OW-2009-0819-4351-A1 Private Citizen B. Kates EPA-HQ-OW-2009-0819-4352-A1 Private Citizen J. Powers EPA-HQ-OW-2009-0819-4353-A1 Private Citizen J. Wargo EPA-HQ-OW-2009-0819-4354-A1 Private Citizen M. Howland EPA-HQ-OW-2009-0819-4355-A1 Private Citizen B. Benbrook EPA-HQ-OW-2009-0819-4356-A1 Private Citizen P. Renner EPA-HQ-OW-2009-0819-4357-A1 Private Citizen L. Hluhan EPA-HQ-OW-2009-0819-4358-A1 Private Citizen C. Justice EPA-HQ-OW-2009-0819-4359-A1 Private Citizen R. Steinman EPA-HQ-OW-2009-0819-4360-A1 Private Citizen F. Trescott EPA-HQ-OW-2009-0819-4361-A1 Private Citizen J. Ledlan EPA-HQ-OW-2009-0819-4362-A1 Private Citizen S. Kokkelenberg EPA-HQ-OW-2009-0819-4363-A1 Private Citizen L. Lambeth EPA-HQ-OW-2009-0819-4364-A1 Private Citizen R. Herrington EPA-HQ-OW-2009-0819-4365-A1 Private Citizen J. Shopp EPA-HQ-OW-2009-0819-4366-A1 Private Citizen M. Byington EPA-HQ-OW-2009-0819-4367-A1 Private Citizen L. Galligan EPA-HQ-OW-2009-0819-4368-A1 Private Citizen F. Shamlian EPA-HQ-OW-2009-0819-4369-A1 Private Citizen M. Bugamelli EPA-HQ-OW-2009-0819-4370-A1 Private Citizen C. Kocher EPA-HQ-OW-2009-0819-4371-A1 Private Citizen A. Weid EPA-HQ-OW-2009-0819-4372-A1 Private Citizen S. Elliot EPA-HQ-OW-2009-0819-4373-A1 Private Citizen L. Streeter EPA-HQ-OW-2009-0819-4374-A1 Private Citizen N. Watts EPA-HQ-OW-2009-0819-4375-A1 Private Citizen A. Ryan EPA-HQ-OW-2009-0819-4376-A1 Private Citizen V. Henry EPA-HQ-OW-2009-0819-4377-A1 Private Citizen J. LeBon EPA-HQ-OW-2009-0819-4378-A1 Private Citizen S. Rosenblum EPA-HQ-OW-2009-0819-4384-A1 Private Citizen R. Leslie EPA-HQ-OW-2009-0819-4387-A1 Private Citizen K. Greene EPA-HQ-OW-2009-0819-4388-A1 Private Citizen M. McEnearney EPA-HQ-OW-2009-0819-4390-A1 Private Citizen N. Rapp EPA-HQ-OW-2009-0819-4391-A1 Private Citizen R. Warber EPA-HQ-OW-2009-0819-4392-A1 Private Citizen K. Engelhardt EPA-HQ-OW-2009-0819-4393-A1 Private Citizen R. Williams EPA-HQ-OW-2009-0819-4394-A1 Private Citizen K. Sherman EPA-HQ-OW-2009-0819-4395-A1 Private Citizen S. Gottesman EPA-HQ-OW-2009-0819-4396-A1 Private Citizen S. Larmore EPA-HQ-OW-2009-0819-4397-A1 Private Citizen C. Haley EPA-HQ-OW-2009-0819-4398-A1 Private Citizen P. McCaully EPA-HQ-OW-2009-0819-4399-A1 Private Citizen B. Henry EPA-HQ-OW-2009-0819-4400-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen C. Hiestand EPA-HQ-OW-2009-0819-4401-A1 Private Citizen D. Franklin EPA-HQ-OW-2009-0819-4402-A1 Private Citizen G. Janzen EPA-HQ-OW-2009-0819-4404-A1 Private Citizen C. Jurczewski EPA-HQ-OW-2009-0819-4405-A1 Private Citizen S. Blain EPA-HQ-OW-2009-0819-4406-A1 Private Citizen M. Davie EPA-HQ-OW-2009-0819-4407-A1 Private Citizen A. Bradford EPA-HQ-OW-2009-0819-4409-A1 Private Citizen A. DeLusant EPA-HQ-OW-2009-0819-4410-A1 Private Citizen B. Dauerty EPA-HQ-OW-2009-0819-4411-A1 Private Citizen T. Glasoe EPA-HQ-OW-2009-0819-4412-A1 Private Citizen D. Kuck EPA-HQ-OW-2009-0819-4413-A1 Private Citizen S. Benson EPA-HQ-OW-2009-0819-4414-A1 Private Citizen J. Rowe EPA-HQ-OW-2009-0819-4415-A1 Private Citizen S. Mehrotra EPA-HQ-OW-2009-0819-4416-A1 Private Citizen S. Marine EPA-HQ-OW-2009-0819-4417-A1 Private Citizen S. Roy EPA-HQ-OW-2009-0819-4418-A1 Private Citizen C. Moyer EPA-HQ-OW-2009-0819-4419-A1 Private Citizen E. Crump EPA-HQ-OW-2009-0819-4420-A1 Private Citizen R. Butler EPA-HQ-OW-2009-0819-4421-A1 Private Citizen Lynn C. (no surname provided) EPA-HQ-OW-2009-0819-4422-A1 Private Citizen B. Setlow EPA-HQ-OW-2009-0819-4423-A1 Private Citizen G. Alderson EPA-HQ-OW-2009-0819-4424-A1 Private Citizen G. Kolodner EPA-HQ-OW-2009-0819-4425-A1 Private Citizen D. Simmer EPA-HQ-OW-2009-0819-4426-A1 Private Citizen K. Russell EPA-HQ-OW-2009-0819-4427-A1 Private Citizen A. McGillivray EPA-HQ-OW-2009-0819-4428-A1 Private Citizen F. Kelly EPA-HQ-OW-2009-0819-4429-A1 Private Citizen J. Jennison EPA-HQ-OW-2009-0819-4431-A1 Private Citizen W. York EPA-HQ-OW-2009-0819-4432-A1 Private Citizen B. Sostek EPA-HQ-OW-2009-0819-4433-A1 Private Citizen L. Usechak EPA-HQ-OW-2009-0819-4434-A1 Private Citizen D. Thorne EPA-HQ-OW-2009-0819-4435-A1 Private Citizen K. Hornberger EPA-HQ-OW-2009-0819-4436-A1 Private Citizen J. Hyma EPA-HQ-OW-2009-0819-4437-A1 Private Citizen R. Tate EPA-HQ-OW-2009-0819-4438-A1 Private Citizen H. Goodman EPA-HQ-OW-2009-0819-4439-A1 Private Citizen D. Bradley EPA-HQ-OW-2009-0819-4440-A1 Private Citizen M. Franceschi EPA-HQ-OW-2009-0819-4441-A1 Private Citizen T. Uhen EPA-HQ-OW-2009-0819-4442-A1 Private Citizen A. Palladino EPA-HQ-OW-2009-0819-4443-A1 Private Citizen B. Doss EPA-HQ-OW-2009-0819-4444-A1 Private Citizen M. DiMuzio EPA-HQ-OW-2009-0819-4445-A1 Private Citizen B. and J. Bailey EPA-HQ-OW-2009-0819-4492Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen S. Hart EPA-HQ-OW-2009-0819-4493 Private Citizen B. Hart EPA-HQ-OW-2009-0819-4496 Private Citizen Arthur G. Randol III EPA-HQ-OW-2009-0819-4497-A1 Private Citizen C. Lish EPA-HQ-OW-2009-0819-4498-A1 Private Citizen L. Hanson EPA-HQ-OW-2009-0819-4522-A1 Private Citizen A. Bolek EPA-HQ-OW-2009-0819-4523-A1 Private Citizen S. Hemmerle EPA-HQ-OW-2009-0819-4524-A1 Private Citizen R. Berg EPA-HQ-OW-2009-0819-4525-A1 Private Citizen D. Rosanelli EPA-HQ-OW-2009-0819-4526-A1 Private Citizen D. Neumann EPA-HQ-OW-2009-0819-4527-A1 Private Citizen H. Maxon EPA-HQ-OW-2009-0819-4528-A1 Private Citizen R. Cone EPA-HQ-OW-2009-0819-4530-A1 Private Citizen A. Driscoll EPA-HQ-OW-2009-0819-4531-A1 Private Citizen C. H. Fisher EPA-HQ-OW-2009-0819-4532-A1 Private Citizen Unknown Mass Email EPA-HQ-OW-2009-0819-4537-A1 Private Citizen A. Bagnasco EPA-HQ-OW-2009-0819-4538-A1 Private Citizen A. Deckler EPA-HQ-OW-2009-0819-4539-A1 Private Citizen A. Euston EPA-HQ-OW-2009-0819-4540-A1 Private Citizen A. Fellows EPA-HQ-OW-2009-0819-4541-A1 Private Citizen A. Frykberg EPA-HQ-OW-2009-0819-4542-A1 Private Citizen A. Kellogg EPA-HQ-OW-2009-0819-4543-A1 Private Citizen A. MacLean EPA-HQ-OW-2009-0819-4544-A1 Private Citizen B. Fine EPA-HQ-OW-2009-0819-4545-A1 Private Citizen B. Parent EPA-HQ-OW-2009-0819-4546-A1 Private Citizen B. Staab EPA-HQ-OW-2009-0819-4547-A1 Private Citizen C. B. Reynolds EPA-HQ-OW-2009-0819-4551-A1 Private Citizen C. Dibbens EPA-HQ-OW-2009-0819-4552-A1 Private Citizen C. Emmons EPA-HQ-OW-2009-0819-4553-A1 Private Citizen C. McFall EPA-HQ-OW-2009-0819-4554-A1 Private Citizen C. Purdue EPA-HQ-OW-2009-0819-4555-A1 Private Citizen C. Swartz EPA-HQ-OW-2009-0819-4556-A1 Private Citizen D. Cooper EPA-HQ-OW-2009-0819-4558-A1 Private Citizen D. Crossan EPA-HQ-OW-2009-0819-4559-A1 Private Citizen D. Roschke EPA-HQ-OW-2009-0819-4560-A1 Private Citizen D. Schafer EPA-HQ-OW-2009-0819-4561-A1 Private Citizen D. Wigmore EPA-HQ-OW-2009-0819-4562-A1 Private Citizen D. Wilder EPA-HQ-OW-2009-0819-4563-A1 Private Citizen E. Gaynor EPA-HQ-OW-2009-0819-4566-A1 Private Citizen E. Johns EPA-HQ-OW-2009-0819-4567-A1 Private Citizen E. Kester EPA-HQ-OW-2009-0819-4568-A1 Private Citizen E. Laroche EPA-HQ-OW-2009-0819-4569-A1 Private Citizen E. Westerlund EPA-HQ-OW-2009-0819-4570-A1 Private Citizen F. Mead EPA-HQ-OW-2009-0819-4574-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen G. Borjesson EPA-HQ-OW-2009-0819-4577-A1 Private Citizen G. Feder EPA-HQ-OW-2009-0819-4578-A1 Private Citizen G. J. Chepko EPA-HQ-OW-2009-0819-4579-A1 Private Citizen G. Spiess EPA-HQ-OW-2009-0819-4581-A1 Private Citizen H. Baxter EPA-HQ-OW-2009-0819-4583-A1 Private Citizen J. Abrahams EPA-HQ-OW-2009-0819-4586-A1 Private Citizen J. Abrahams EPA-HQ-OW-2009-0819-4587-A1 Private Citizen Unknown Mass Email Campaign EPA-HQ-OW-2009-0819-4588-A1 Private Citizen W. Kelly EPA-HQ-OW-2009-0819-4590-A1 Private Citizen Ursula R. EPA-HQ-OW-2009-0819-4591-A1 Private Citizen J. and J. Field EPA-HQ-OW-2009-0819-4595-A1 Private Citizen J. and K. Kiser EPA-HQ-OW-2009-0819-4596-A1 Private Citizen J. Blevins EPA-HQ-OW-2009-0819-4597-A1 Private Citizen J. C. Corliss EPA-HQ-OW-2009-0819-4598-A1 Private Citizen J. Enblom EPA-HQ-OW-2009-0819-4599-A1 Private Citizen J. Harrell EPA-HQ-OW-2009-0819-4600-A1 Private Citizen J. Howe EPA-HQ-OW-2009-0819-4601-A1 Private Citizen J. Maselli EPA-HQ-OW-2009-0819-4602-A1 Private Citizen J. McCarthy EPA-HQ-OW-2009-0819-4603-A1 Private Citizen J. McClory EPA-HQ-OW-2009-0819-4604-A1 Private Citizen J. Oliver EPA-HQ-OW-2009-0819-4605-A1 Private Citizen K. Gag EPA-HQ-OW-2009-0819-4609-A1 Private Citizen K. Maller EPA-HQ-OW-2009-0819-4610-A1 Private Citizen K. Possner EPA-HQ-OW-2009-0819-4611-A1 Private Citizen K. Simester EPA-HQ-OW-2009-0819-4612-A1 Private Citizen K. Yoshida EPA-HQ-OW-2009-0819-4613-A1 Private Citizen L. Ehrenfeld EPA-HQ-OW-2009-0819-4616-A1 Private Citizen L. Hays EPA-HQ-OW-2009-0819-4617-A1 Private Citizen L. Selby EPA-HQ-OW-2009-0819-4618-A1 Private Citizen M. A. Barrett EPA-HQ-OW-2009-0819-4619-A1 Private Citizen M. De Witt EPA-HQ-OW-2009-0819-4621-A1 Private Citizen M. E. Schultz EPA-HQ-OW-2009-0819-4622-A1 Private Citizen M. Fedyszyn EPA-HQ-OW-2009-0819-4623-A1 Private Citizen M. Kerwin EPA-HQ-OW-2009-0819-4625-A1 Private Citizen M. MacLeod EPA-HQ-OW-2009-0819-4626-A1 Private Citizen M. Mallon EPA-HQ-OW-2009-0819-4627-A1 Private Citizen M. Swanson EPA-HQ-OW-2009-0819-4628-A1 Private Citizen P. Maher EPA-HQ-OW-2009-0819-4630-A1 Private Citizen R. Hoey EPA-HQ-OW-2009-0819-4635-A1 Private Citizen R. Strasser EPA-HQ-OW-2009-0819-4638-A1 Private Citizen R. W. Glassley EPA-HQ-OW-2009-0819-4639-A1 Private Citizen Ray Johnson EPA-HQ-OW-2009-0819-4640-A1 Private Citizen S. Brown EPA-HQ-OW-2009-0819-4642-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen S. Viola EPA-HQ-OW-2009-0819-4643-A1 Private Citizen S. Post EPA-HQ-OW-2009-0819-4644-A1 Private Citizen S. Ganbari EPA-HQ-OW-2009-0819-4645-A1 Private Citizen S. Euston EPA-HQ-OW-2009-0819-4646-A1 Private Citizen T. D. Fosburr EPA-HQ-OW-2009-0819-4647-A1 Private Citizen T. Jackson EPA-HQ-OW-2009-0819-4648-A1 Private Citizen T. Wall EPA-HQ-OW-2009-0819-4649-A1 Private Citizen T. Martinat EPA-HQ-OW-2009-0819-4650-A1 Private Citizen John A. Patterson et al. EPA-HQ-OW-2009-0819-4653-A1 Private Citizen Unknown Mass Email Campaign EPA-HQ-OW-2009-0819-4654-A1 Private Citizen M. Kolodne EPA-HQ-OW-2009-0819-4764-A1 Private Citizen CWA Mass Mail Campaign EPA-HQ-OW-2009-0819-4771-A1 Private Citizen CWA Mass Mail Campaign EPA-HQ-OW-2009-0819-4772-A1 Private Citizen Jeffery (No Surname) EPA-HQ-OW-2009-0819-4773-A1 Private Citizen Elizabeth Cusulas EPA-HQ-OW-2009-0819-4776-A1 Private Citizen S. Liu EPA-HQ-OW-2009-0819-4777-A1 Private Citizen J. Mooney EPA-HQ-OW-2009-0819-4778-A1 Private Citizen Y. LeFever EPA-HQ-OW-2009-0819-4779-A1 Private Citizen J. Bezanson EPA-HQ-OW-2009-0819-4780-A1 Private Citizen J. Bezanson EPA-HQ-OW-2009-0819-4782-A1 Private Citizen J. Davis EPA-HQ-OW-2009-0819-4783-A1 Private Citizen S. Brown EPA-HQ-OW-2009-0819-4784-A1 Private Citizen T. Hurst EPA-HQ-OW-2009-0819-4785-A1 Private Citizen K. A. Olson EPA-HQ-OW-2009-0819-4786-A1 Private Citizen R. Hoffman EPA-HQ-OW-2009-0819-4787-A1 Private Citizen J. Speen EPA-HQ-OW-2009-0819-4789-A1 Private Citizen H. Oppenheimer EPA-HQ-OW-2009-0819-4790-A1 Private Citizen B. Meux EPA-HQ-OW-2009-0819-4791-A1 Private Citizen D. Durham EPA-HQ-OW-2009-0819-4792-A1 Private Citizen R. K. Coffey EPA-HQ-OW-2009-0819-4793-A1 Private Citizen T. Lettieri EPA-HQ-OW-2009-0819-4794-A1 Private Citizen B. E. Springlett EPA-HQ-OW-2009-0819-4795-A1 Private Citizen H. Yu EPA-HQ-OW-2009-0819-4796-A1 Private Citizen C. Gerber EPA-HQ-OW-2009-0819-4797-A1 Private Citizen M. Amato EPA-HQ-OW-2009-0819-4798-A1 Private Citizen D. Haecker EPA-HQ-OW-2009-0819-4799-A1 Private Citizen M. R. Sheldon EPA-HQ-OW-2009-0819-4800-A1 Private Citizen B. Miller EPA-HQ-OW-2009-0819-4801-A1 Private Citizen J. Carlie EPA-HQ-OW-2009-0819-4802-A1 Private Citizen P. Maness EPA-HQ-OW-2009-0819-4803-A1 Private Citizen S. Wallace EPA-HQ-OW-2009-0819-4804-A1 Private Citizen B. Hoffman EPA-HQ-OW-2009-0819-4805-A1 Private Citizen D. Haecker EPA-HQ-OW-2009-0819-4806-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen D. Ross EPA-HQ-OW-2009-0819-4807-A1 Private Citizen K. Phelps EPA-HQ-OW-2009-0819-4808-A1 Private Citizen K. Wheat EPA-HQ-OW-2009-0819-4809-A1 Private Citizen S. C. Clark EPA-HQ-OW-2009-0819-4813-A1 Private Citizen F. R. Paterson EPA-HQ-OW-2009-0819-4814-A1 Private Citizen J. C. Bosworth EPA-HQ-OW-2009-0819-4815-A1 Private Citizen J. Cuozzo EPA-HQ-OW-2009-0819-4816-A1 Private Citizen K. McIntyre EPA-HQ-OW-2009-0819-4817-A1 Private Citizen N. S. Lambert EPA-HQ-OW-2009-0819-4818-A1 Private Citizen L. E. Fairbairn EPA-HQ-OW-2009-0819-4819-A1 Private Citizen D. Leoui EPA-HQ-OW-2009-0819-4820-A1 Private Citizen C. Boucher EPA-HQ-OW-2009-0819-4821-A1 Private Citizen M. Sullivan EPA-HQ-OW-2009-0819-4822-A1 Private Citizen A. Stefon EPA-HQ-OW-2009-0819-4823-A1 Private Citizen K. Bailey EPA-HQ-OW-2009-0819-4824-A1 Private Citizen K. Peret EPA-HQ-OW-2009-0819-4825-A1 Private Citizen T. Oates EPA-HQ-OW-2009-0819-4826-A1 Private Citizen R. Hughey EPA-HQ-OW-2009-0819-4827-A1 Private Citizen Parkers EPA-HQ-OW-2009-0819-4828-A1 Private Citizen Melinda L. (surname illegible) EPA-HQ-OW-2009-0819-4829-A1 Private Citizen K. Spanopoulos EPA-HQ-OW-2009-0819-4830-A1 Private Citizen B. Benton EPA-HQ-OW-2009-0819-4831-A1 Private Citizen B. Hasten EPA-HQ-OW-2009-0819-4832-A1 Private Citizen S. Zwelter EPA-HQ-OW-2009-0819-4833-A1 Private Citizen S. Shower EPA-HQ-OW-2009-0819-4834-A1 Private Citizen L.L. Coffman EPA-HQ-OW-2009-0819-4835-A1 Private Citizen R. Beseman EPA-HQ-OW-2009-0819-4836-A1 Private Citizen R. Pendleton EPA-HQ-OW-2009-0819-4837-A1 Private Citizen V. E. Gustin EPA-HQ-OW-2009-0819-4838-A1 Private Citizen L. Rashid EPA-HQ-OW-2009-0819-4839-A1 Private Citizen S. E. Moher EPA-HQ-OW-2009-0819-4840-A1 Private Citizen V. Oddo EPA-HQ-OW-2009-0819-4841-A1 Private Citizen P. Regan EPA-HQ-OW-2009-0819-4842-A1 Private Citizen J. Kahle EPA-HQ-OW-2009-0819-4843-A1 Private Citizen S. Saville EPA-HQ-OW-2009-0819-4844-A1 Private Citizen S. Roche EPA-HQ-OW-2009-0819-4845-A1 Private Citizen R. Gessner EPA-HQ-OW-2009-0819-4846-A1 Private Citizen E. Gordan EPA-HQ-OW-2009-0819-4847-A1 Private Citizen K. Holloway EPA-HQ-OW-2009-0819-4848-A1 Private Citizen P. Wagner EPA-HQ-OW-2009-0819-4849-A1 Private Citizen R. M. Wagner EPA-HQ-OW-2009-0819-4850-A1 Private Citizen K. Maynihan EPA-HQ-OW-2009-0819-4851-A1 Private Citizen J. Duron EPA-HQ-OW-2009-0819-4852-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen L. Geoffrion EPA-HQ-OW-2009-0819-4853-A1 Private Citizen K. Morse EPA-HQ-OW-2009-0819-4854-A1 Private Citizen J. R. Vort EPA-HQ-OW-2009-0819-4855-A1 Private Citizen F. M. Miller EPA-HQ-OW-2009-0819-4856-A1 Private Citizen D. Corsoran EPA-HQ-OW-2009-0819-4857-A1 Private Citizen M. E. Elsesser EPA-HQ-OW-2009-0819-4858-A1 Private Citizen A. J. Bridges EPA-HQ-OW-2009-0819-4859-A1 Private Citizen L. Marschinke EPA-HQ-OW-2009-0819-4860-A1 Private Citizen D. Richards EPA-HQ-OW-2009-0819-4861-A1 Private Citizen C. Nelson EPA-HQ-OW-2009-0819-4862-A1 Private Citizen A. Shell EPA-HQ-OW-2009-0819-4863-A1 Private Citizen S. Souva EPA-HQ-OW-2009-0819-4864-A1 Private Citizen J. V. Wagoner EPA-HQ-OW-2009-0819-4865-A1 Private Citizen E. Resnick-Day EPA-HQ-OW-2009-0819-4866-A1 Private Citizen R. Keller EPA-HQ-OW-2009-0819-4867-A1 Private Citizen J. R. Roberts EPA-HQ-OW-2009-0819-4868-A1 Private Citizen A. Ford EPA-HQ-OW-2009-0819-4869-A1 Private Citizen P. Hokanson EPA-HQ-OW-2009-0819-4870-A1 Private Citizen T. Amiot EPA-HQ-OW-2009-0819-4871-A1 Private Citizen L. Teichert EPA-HQ-OW-2009-0819-4872-A1 Private Citizen G. King EPA-HQ-OW-2009-0819-4873-A1 Private Citizen E. Manturuk EPA-HQ-OW-2009-0819-4874-A1 Private Citizen R. Hahn EPA-HQ-OW-2009-0819-4875-A1 Private Citizen K. Paxton EPA-HQ-OW-2009-0819-4876-A1 Private Citizen B. OSullivan EPA-HQ-OW-2009-0819-4877-A1 Private Citizen E. Rivas EPA-HQ-OW-2009-0819-4878-A1 Private Citizen K. A. Gearns EPA-HQ-OW-2009-0819-4879-A1 Private Citizen Y. J. Roy EPA-HQ-OW-2009-0819-4880-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-4881-A1 Private Citizen J. M. Lansdown EPA-HQ-OW-2009-0819-4882-A1 Private Citizen M. Rothenberger EPA-HQ-OW-2009-0819-4883-A1 Private Citizen S. Kuehner EPA-HQ-OW-2009-0819-4884-A1 Private Citizen T. Severn EPA-HQ-OW-2009-0819-4885-A1 Private Citizen D. Dainsberg EPA-HQ-OW-2009-0819-4886-A1 Private Citizen J. Heath EPA-HQ-OW-2009-0819-4887-A1 Private Citizen T. Heath EPA-HQ-OW-2009-0819-4888-A1 Private Citizen C. Carroll-Shier EPA-HQ-OW-2009-0819-4889-A1 Private Citizen C. A. Bridges EPA-HQ-OW-2009-0819-4890-A1 Private Citizen P. M. Elsesser EPA-HQ-OW-2009-0819-4891-A1 Private Citizen S. Moriarty EPA-HQ-OW-2009-0819-4892-A1 Private Citizen R. A. Martin EPA-HQ-OW-2009-0819-4893-A1 Private Citizen C. Yang EPA-HQ-OW-2009-0819-4894-A1 Private Citizen R. Shea EPA-HQ-OW-2009-0819-4895-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen C. H. Hernandez EPA-HQ-OW-2009-0819-4896-A1 Private Citizen A. Snyder EPA-HQ-OW-2009-0819-4898-A1 Private Citizen E. Williams EPA-HQ-OW-2009-0819-4899-A1 Private Citizen T. and T. Stingley EPA-HQ-OW-2009-0819-4900-A1 Private Citizen S. Rye EPA-HQ-OW-2009-0819-4901-A1 Private Citizen J. Rivas EPA-HQ-OW-2009-0819-4902-A1 Private Citizen S. L. Callan EPA-HQ-OW-2009-0819-4903-A1 Private Citizen M. Wassenaar EPA-HQ-OW-2009-0819-4904-A1 Private Citizen J. Elin EPA-HQ-OW-2009-0819-4905-A1 Private Citizen E. Eide EPA-HQ-OW-2009-0819-4906-A1 Private Citizen J. Souza EPA-HQ-OW-2009-0819-4907-A1 Private Citizen S. Mooney EPA-HQ-OW-2009-0819-4908-A1 Private Citizen K. Kalitis EPA-HQ-OW-2009-0819-4909-A1 Private Citizen R. E. Rude Jr. EPA-HQ-OW-2009-0819-4910-A1 Private Citizen S. Wilkey EPA-HQ-OW-2009-0819-4911-A1 Private Citizen S. Doornbos EPA-HQ-OW-2009-0819-4912-A1 Private Citizen D. Crider EPA-HQ-OW-2009-0819-4913-A1 Private Citizen S. R. Kdohl EPA-HQ-OW-2009-0819-4914-A1 Private Citizen D. M Sdao EPA-HQ-OW-2009-0819-4915-A1 Private Citizen F. Morgan EPA-HQ-OW-2009-0819-4916-A1 Private Citizen J. Dombrowski EPA-HQ-OW-2009-0819-4917-A1 Private Citizen R. Orsborn EPA-HQ-OW-2009-0819-4918-A1 Private Citizen R. Wurfel EPA-HQ-OW-2009-0819-4919-A1 Private Citizen B. O. Weaver EPA-HQ-OW-2009-0819-4920-A1 Private Citizen T. Zylstra EPA-HQ-OW-2009-0819-4921-A1 Private Citizen N. Palley EPA-HQ-OW-2009-0819-4922-A1 Private Citizen M. K. Howard EPA-HQ-OW-2009-0819-4923-A1 Private Citizen M. Hosler EPA-HQ-OW-2009-0819-4924-A1 Private Citizen J. C. Ellis EPA-HQ-OW-2009-0819-4925-A1 Private Citizen G. Thomas EPA-HQ-OW-2009-0819-4927-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-4928-A1 Private Citizen D. L. Straub EPA-HQ-OW-2009-0819-4929-A1 Private Citizen M. Chapman EPA-HQ-OW-2009-0819-4930-A1 Private Citizen K. Lemmen EPA-HQ-OW-2009-0819-4931-A1 Private Citizen O. Thompson EPA-HQ-OW-2009-0819-4932-A1 Private Citizen L. Thompson EPA-HQ-OW-2009-0819-4933-A1 Private Citizen M. Stressman EPA-HQ-OW-2009-0819-4934-A1 Private Citizen M. Vitagliano EPA-HQ-OW-2009-0819-4935-A1 Private Citizen Elizabeth (surname illegible) EPA-HQ-OW-2009-0819-4936-A1 Private Citizen J. Pluta EPA-HQ-OW-2009-0819-4937-A1 Private Citizen M. H. Montgomery EPA-HQ-OW-2009-0819-4938-A1 Private Citizen K. Wadland EPA-HQ-OW-2009-0819-4939-A1 Private Citizen L. Vahlsing EPA-HQ-OW-2009-0819-4940-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen name illegible EPA-HQ-OW-2009-0819-4941-A1 Private Citizen I. Ritchings EPA-HQ-OW-2009-0819-4943-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-4944-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-4945-A1 Private Citizen R. Priskorn EPA-HQ-OW-2009-0819-4946-A1 Private Citizen E. K. Worrell EPA-HQ-OW-2009-0819-4947-A1 Private Citizen Sherry (surname illegible) EPA-HQ-OW-2009-0819-4948-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-4949-A1 Private Citizen M. C. LeFever EPA-HQ-OW-2009-0819-4950-A1 Private Citizen S. Auuan EPA-HQ-OW-2009-0819-4951-A1 Private Citizen J. and C. Wilson EPA-HQ-OW-2009-0819-4952-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-4954-A1 Private Citizen Steve (surname illegible) EPA-HQ-OW-2009-0819-4955-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-4956-A1 Private Citizen Barbara M. (surname illegible) EPA-HQ-OW-2009-0819-4957-A1 Private Citizen Adam (surname illegible) EPA-HQ-OW-2009-0819-4958-A1 Private Citizen J. Morgan EPA-HQ-OW-2009-0819-4959-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-4960-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-4961-A1 Private Citizen J. D. Allamon EPA-HQ-OW-2009-0819-4962-A1 Private Citizen Michael (no surname provided) EPA-HQ-OW-2009-0819-4963-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-4964-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-4965-A1 Private Citizen The Kurz EPA-HQ-OW-2009-0819-4966-A1 Private Citizen L. Barton EPA-HQ-OW-2009-0819-4967-A1 Private Citizen C. M. DuBois EPA-HQ-OW-2009-0819-4968-A1 Private Citizen W. Shoemaker EPA-HQ-OW-2009-0819-4969-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-4970-A1 Private Citizen R. Scott EPA-HQ-OW-2009-0819-4971-A1 Private Citizen T. Olds EPA-HQ-OW-2009-0819-4972-A1 Private Citizen S. Sanberg EPA-HQ-OW-2009-0819-4973-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-4974-A1 Private Citizen D. Maclachlan EPA-HQ-OW-2009-0819-4975-A1 Private Citizen M. Zarbeck EPA-HQ-OW-2009-0819-4976-A1 Private Citizen M. W. Atwater EPA-HQ-OW-2009-0819-4977-A1 Private Citizen M. Calahese Weir EPA-HQ-OW-2009-0819-4978-A1 Private Citizen S. N. Gains EPA-HQ-OW-2009-0819-4979-A1 Private Citizen S. Spade EPA-HQ-OW-2009-0819-4980-A1 Private Citizen C. S. Abel EPA-HQ-OW-2009-0819-4981-A1 Private Citizen T. and M. Pavlichenko EPA-HQ-OW-2009-0819-4982-A1 Private Citizen E. Staunton EPA-HQ-OW-2009-0819-4983-A1 Private Citizen T. Palmer EPA-HQ-OW-2009-0819-4984-A1 Private Citizen T. Clayton EPA-HQ-OW-2009-0819-4987-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen J. N. Toohey EPA-HQ-OW-2009-0819-4988-A1 Private Citizen J. Zwier EPA-HQ-OW-2009-0819-4989-A1 Private Citizen S. Bover EPA-HQ-OW-2009-0819-4990-A1 Private Citizen H. Street EPA-HQ-OW-2009-0819-4991-A1 Private Citizen A. Robinson EPA-HQ-OW-2009-0819-4992-A1 Private Citizen C. S. Richardson EPA-HQ-OW-2009-0819-4993-A1 Private Citizen K. Alexander EPA-HQ-OW-2009-0819-4995-A1 Private Citizen D. Kenely EPA-HQ-OW-2009-0819-4996-A1 Private Citizen R. Sarver EPA-HQ-OW-2009-0819-4997-A1 Private Citizen R. Cash EPA-HQ-OW-2009-0819-4998-A1 Private Citizen M. Isabella EPA-HQ-OW-2009-0819-4999-A1 Private Citizen E. M. Stone EPA-HQ-OW-2009-0819-5000-A1 Private Citizen C. M. Love EPA-HQ-OW-2009-0819-5001-A1 Private Citizen J. L. Heim EPA-HQ-OW-2009-0819-5002-A1 Private Citizen K. Penin EPA-HQ-OW-2009-0819-5003-A1 Private Citizen J. Kent EPA-HQ-OW-2009-0819-5004-A1 Private Citizen L. Tokaski EPA-HQ-OW-2009-0819-5005-A1 Private Citizen B. Aey EPA-HQ-OW-2009-0819-5007-A1 Private Citizen L. Meher EPA-HQ-OW-2009-0819-5008-A1 Private Citizen C. L. Fylonenko EPA-HQ-OW-2009-0819-5009-A1 Private Citizen J. Kavanagh EPA-HQ-OW-2009-0819-5010-A1 Private Citizen S. Grilleb EPA-HQ-OW-2009-0819-5011-A1 Private Citizen Seth (surname illegible) EPA-HQ-OW-2009-0819-5012-A1 Private Citizen G. R. Demason EPA-HQ-OW-2009-0819-5013-A1 Private Citizen K. DeCiantis EPA-HQ-OW-2009-0819-5014-A1 Private Citizen N. Natarajan EPA-HQ-OW-2009-0819-5015-A1 Private Citizen M. Zhang EPA-HQ-OW-2009-0819-5016-A1 Private Citizen R. C. Peyser EPA-HQ-OW-2009-0819-5017-A1 Private Citizen J. R. Gosse EPA-HQ-OW-2009-0819-5018-A1 Private Citizen A. Uroser EPA-HQ-OW-2009-0819-5021-A1 Private Citizen T. Hatten EPA-HQ-OW-2009-0819-5022-A1 Private Citizen Lois (surname illegible) EPA-HQ-OW-2009-0819-5023-A1 Private Citizen B. Honig EPA-HQ-OW-2009-0819-5024-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-5025-A1 Private Citizen M. Bretman EPA-HQ-OW-2009-0819-5026-A1 Private Citizen P. B. Hesley EPA-HQ-OW-2009-0819-5027-A1 Private Citizen Timothy J. (surname illegible) EPA-HQ-OW-2009-0819-5028-A1 Private Citizen A. Gantz EPA-HQ-OW-2009-0819-5029-A1 Private Citizen K. Mauro EPA-HQ-OW-2009-0819-5030-A1 Private Citizen M. Nordell EPA-HQ-OW-2009-0819-5031-A1 Private Citizen M. Walton EPA-HQ-OW-2009-0819-5032-A1 Private Citizen B. Grimm EPA-HQ-OW-2009-0819-5033-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-5034-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen I. G. Phillips EPA-HQ-OW-2009-0819-5035-A1 Private Citizen R. G. Faber EPA-HQ-OW-2009-0819-5036-A1 Private Citizen L. Chen EPA-HQ-OW-2009-0819-5037-A1 Private Citizen R. Thomas EPA-HQ-OW-2009-0819-5038-A1 Private Citizen J. Thomas EPA-HQ-OW-2009-0819-5039-A1 Private Citizen B. Shapo EPA-HQ-OW-2009-0819-5040-A1 Private Citizen L. and P. Perlman EPA-HQ-OW-2009-0819-5041-A1 Private Citizen M. D. Barg EPA-HQ-OW-2009-0819-5042-A1 Private Citizen A. Belanger EPA-HQ-OW-2009-0819-5043-A1 Private Citizen M. A. Moreno EPA-HQ-OW-2009-0819-5044-A1 Private Citizen S. Klont EPA-HQ-OW-2009-0819-5045-A1 Private Citizen J. L. Chute and K. A. Fisher EPA-HQ-OW-2009-0819-5046-A1 Private Citizen M. Smith EPA-HQ-OW-2009-0819-5047-A1 Private Citizen J. and R. Soronen EPA-HQ-OW-2009-0819-5048-A1 Private Citizen J. and A. MacDonald EPA-HQ-OW-2009-0819-5049-A1 Private Citizen D. Eckholm EPA-HQ-OW-2009-0819-5050-A1 Private Citizen L. Theemore-Spears EPA-HQ-OW-2009-0819-5051-A1 Private Citizen M. Eberbach EPA-HQ-OW-2009-0819-5052-A1 Private Citizen S. Eberbach EPA-HQ-OW-2009-0819-5053-A1 Private Citizen S. Musko EPA-HQ-OW-2009-0819-5054-A1 Private Citizen E. Hopkins EPA-HQ-OW-2009-0819-5055-A1 Private Citizen J. Smedberg EPA-HQ-OW-2009-0819-5056-A1 Private Citizen J. and P. Riehl EPA-HQ-OW-2009-0819-5057-A1 Private Citizen R. Milstein EPA-HQ-OW-2009-0819-5058-A1 Private Citizen C. Milstein EPA-HQ-OW-2009-0819-5059-A1 Private Citizen D. E. Fuller EPA-HQ-OW-2009-0819-5060-A1 Private Citizen R. Calderon EPA-HQ-OW-2009-0819-5061-A1 Private Citizen J. M. Tengler EPA-HQ-OW-2009-0819-5062-A1 Private Citizen W. Brodovich EPA-HQ-OW-2009-0819-5063-A1 Private Citizen C. Morado EPA-HQ-OW-2009-0819-5064-A1 Private Citizen K. Markey EPA-HQ-OW-2009-0819-5065-A1 Private Citizen C. Richter EPA-HQ-OW-2009-0819-5066-A1 Private Citizen N. Anderson EPA-HQ-OW-2009-0819-5067-A1 Private Citizen V. Berg EPA-HQ-OW-2009-0819-5068-A1 Private Citizen C. Hesnan EPA-HQ-OW-2009-0819-5069-A1 Private Citizen V. & B. Ahronheim EPA-HQ-OW-2009-0819-5070-A1 Private Citizen D. M. Posther EPA-HQ-OW-2009-0819-5071-A1 Private Citizen G. DeBarr EPA-HQ-OW-2009-0819-5072-A1 Private Citizen S. Williams EPA-HQ-OW-2009-0819-5073-A1 Private Citizen M. Duff-Silvermann EPA-HQ-OW-2009-0819-5074-A1 Private Citizen C. B. Kay EPA-HQ-OW-2009-0819-5075-A1 Private Citizen P. Maness EPA-HQ-OW-2009-0819-5076-A1 Private Citizen J. A. Dragotti EPA-HQ-OW-2009-0819-5077-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen D. M. Peras EPA-HQ-OW-2009-0819-5078-A1 Private Citizen J. Mallin EPA-HQ-OW-2009-0819-5079-A1 Private Citizen D. Weller EPA-HQ-OW-2009-0819-5080-A1 Private Citizen N. McVay EPA-HQ-OW-2009-0819-5081-A1 Private Citizen L. Kuhta EPA-HQ-OW-2009-0819-5082-A1 Private Citizen L. Richmond EPA-HQ-OW-2009-0819-5083-A1 Private Citizen C. and C. Timko EPA-HQ-OW-2009-0819-5084-A1 Private Citizen E. DeCiantis EPA-HQ-OW-2009-0819-5085-A1 Private Citizen C. Simmons EPA-HQ-OW-2009-0819-5086-A1 Private Citizen D. Stetina EPA-HQ-OW-2009-0819-5088-A1 Private Citizen T. C. Gatto EPA-HQ-OW-2009-0819-5089-A1 Private Citizen K. Gembarski EPA-HQ-OW-2009-0819-5090-A1 Private Citizen T. Brazaitis EPA-HQ-OW-2009-0819-5091-A1 Private Citizen K. Parariello EPA-HQ-OW-2009-0819-5092-A1 Private Citizen T. Allen EPA-HQ-OW-2009-0819-5094-A1 Private Citizen R. Pepitone EPA-HQ-OW-2009-0819-5095-A1 Private Citizen E. Anderson EPA-HQ-OW-2009-0819-5098-A1 Private Citizen L. Caffrey EPA-HQ-OW-2009-0819-5099-A1 Private Citizen L. Kaufinan EPA-HQ-OW-2009-0819-5101-A1 Private Citizen K. Kellman EPA-HQ-OW-2009-0819-5102-A1 Private Citizen J. Wagner EPA-HQ-OW-2009-0819-5103-A1 Private Citizen V. Davinich and B. R. Moran EPA-HQ-OW-2009-0819-5104-A1 Private Citizen R. Simica EPA-HQ-OW-2009-0819-5105-A1 Private Citizen M. Weiss EPA-HQ-OW-2009-0819-5107-A1 Private Citizen C. Creath EPA-HQ-OW-2009-0819-5108-A1 Private Citizen P. H . Foster EPA-HQ-OW-2009-0819-5111-A1 Private Citizen F. Lurz EPA-HQ-OW-2009-0819-5112-A1 Private Citizen E. Mueller EPA-HQ-OW-2009-0819-5113-A1 Private Citizen A. Bachelder EPA-HQ-OW-2009-0819-5114-A1 Private Citizen M. Pilotti EPA-HQ-OW-2009-0819-5115-A1 Private Citizen S. M. Varis EPA-HQ-OW-2009-0819-5116-A1 Private Citizen D. Pilotti EPA-HQ-OW-2009-0819-5117-A1 Private Citizen D. Sarkady EPA-HQ-OW-2009-0819-5118-A1 Private Citizen N. Osborn EPA-HQ-OW-2009-0819-5119-A1 Private Citizen K. Kavulia EPA-HQ-OW-2009-0819-5120-A1 Private Citizen J. Kubiski EPA-HQ-OW-2009-0819-5121-A1 Private Citizen B. A. Smith EPA-HQ-OW-2009-0819-5122-A1 Private Citizen R. Recker EPA-HQ-OW-2009-0819-5123-A1 Private Citizen L. Garcia EPA-HQ-OW-2009-0819-5125-A1 Private Citizen T. Dash EPA-HQ-OW-2009-0819-5126-A1 Private Citizen H. Mitchell EPA-HQ-OW-2009-0819-5128-A1 Private Citizen D. Doyle EPA-HQ-OW-2009-0819-5129-A1 Private Citizen D. Doyle EPA-HQ-OW-2009-0819-5130-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen A. Burke EPA-HQ-OW-2009-0819-5131-A1 Private Citizen D. Cunningham EPA-HQ-OW-2009-0819-5132-A1 Private Citizen J. Jacobs EPA-HQ-OW-2009-0819-5133-A1 Private Citizen T. J. Silverman EPA-HQ-OW-2009-0819-5134-A1 Private Citizen K. Bascetta EPA-HQ-OW-2009-0819-5135-A1 Private Citizen L. Wibbler EPA-HQ-OW-2009-0819-5136-A1 Private Citizen M. Drumwright EPA-HQ-OW-2009-0819-5137-A1 Private Citizen V. A. Frazer-Abel EPA-HQ-OW-2009-0819-5138-A1 Private Citizen June Thomas EPA-HQ-OW-2009-0819-5139-A1 Private Citizen S. Szubielski EPA-HQ-OW-2009-0819-5141-A1 Private Citizen D. J. Graczyk EPA-HQ-OW-2009-0819-5142-A1 Private Citizen R. Lange EPA-HQ-OW-2009-0819-5143-A1 Private Citizen D. H. Rehlaender EPA-HQ-OW-2009-0819-5144-A1 Private Citizen F. D. Maldonado EPA-HQ-OW-2009-0819-5146-A1 Private Citizen K. J. Baxter EPA-HQ-OW-2009-0819-5147-A1 Private Citizen P. Olivo EPA-HQ-OW-2009-0819-5148-A1 Private Citizen J. Bosma EPA-HQ-OW-2009-0819-5149-A1 Private Citizen G. Sullivan EPA-HQ-OW-2009-0819-5150-A1 Private Citizen J. Godec EPA-HQ-OW-2009-0819-5151-A1 Private Citizen A. Ray EPA-HQ-OW-2009-0819-5152-A1 Private Citizen C. Depman EPA-HQ-OW-2009-0819-5153-A1 Private Citizen J. Gagne EPA-HQ-OW-2009-0819-5155-A1 Private Citizen M. (surname illegible) EPA-HQ-OW-2009-0819-5156-A1 Private Citizen D. Cox EPA-HQ-OW-2009-0819-5157-A1 Private Citizen Annymous EPA-HQ-OW-2009-0819-5158-A1 Private Citizen T. Williams EPA-HQ-OW-2009-0819-5159-A1 Private Citizen B. Johnson EPA-HQ-OW-2009-0819-5160-A1 Private Citizen J. Cambias EPA-HQ-OW-2009-0819-5161-A1 Private Citizen J. Cambias EPA-HQ-OW-2009-0819-5162-A1 Private Citizen E. Hugman EPA-HQ-OW-2009-0819-5163-A1 Private Citizen B. Laser EPA-HQ-OW-2009-0819-5164-A1 Private Citizen J. Badger EPA-HQ-OW-2009-0819-5165-A1 Private Citizen T. Wilson and R. Solveo EPA-HQ-OW-2009-0819-5166-A1 Private Citizen J. Liotta EPA-HQ-OW-2009-0819-5167-A1 Private Citizen H. Clydesdale EPA-HQ-OW-2009-0819-5168-A1 Private Citizen E. Lypich EPA-HQ-OW-2009-0819-5169-A1 Private Citizen M. Berghoff-Jasloaski EPA-HQ-OW-2009-0819-5170-A1 Private Citizen M. Solano and T. Mencher EPA-HQ-OW-2009-0819-5171-A1 Private Citizen A. Hazra and S. Hazra EPA-HQ-OW-2009-0819-5172-A1 Private Citizen J. Koster EPA-HQ-OW-2009-0819-5174-A1 Private Citizen S. D. Cannitor EPA-HQ-OW-2009-0819-5175-A1 Private Citizen L. Noborio EPA-HQ-OW-2009-0819-5176-A1 Private Citizen R. Masterson EPA-HQ-OW-2009-0819-5177-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen K. M. Ryan EPA-HQ-OW-2009-0819-5178-A1 Private Citizen S. Schrader EPA-HQ-OW-2009-0819-5179-A1 Private Citizen B. Rogers EPA-HQ-OW-2009-0819-5180-A1 Private Citizen A. Dominguez EPA-HQ-OW-2009-0819-5181-A1 Private Citizen S. Manleena EPA-HQ-OW-2009-0819-5182-A1 Private Citizen W. M. Stevens EPA-HQ-OW-2009-0819-5183-A1 Private Citizen B. Slocombe EPA-HQ-OW-2009-0819-5184-A1 Private Citizen A. McFarland-Provins EPA-HQ-OW-2009-0819-5185-A1 Private Citizen E. Kleeman EPA-HQ-OW-2009-0819-5186-A1 Private Citizen L. Mayor EPA-HQ-OW-2009-0819-5187-A1 Private Citizen S. Foley EPA-HQ-OW-2009-0819-5188-A1 Private Citizen C. Glover and D. C. Wlliams EPA-HQ-OW-2009-0819-5189-A1 Private Citizen C. Gannon EPA-HQ-OW-2009-0819-5190-A1 Private Citizen K. W. Kurt EPA-HQ-OW-2009-0819-5191-A1 Private Citizen K. Moran EPA-HQ-OW-2009-0819-5192-A1 Private Citizen A. Lapp EPA-HQ-OW-2009-0819-5193-A1 Private Citizen J. Robinson EPA-HQ-OW-2009-0819-5194-A1 Private Citizen S. Meyer EPA-HQ-OW-2009-0819-5195-A1 Private Citizen B. Hovat EPA-HQ-OW-2009-0819-5196-A1 Private Citizen K. Hendricksen EPA-HQ-OW-2009-0819-5197-A1 Private Citizen I. Muler EPA-HQ-OW-2009-0819-5198-A1 Private Citizen S. Wenske EPA-HQ-OW-2009-0819-5199-A1 Private Citizen J. Mullins EPA-HQ-OW-2009-0819-5200-A1 Private Citizen H. Boland EPA-HQ-OW-2009-0819-5201-A1 Private Citizen J. Carballo EPA-HQ-OW-2009-0819-5202-A1 Private Citizen J. Solon EPA-HQ-OW-2009-0819-5203-A1 Private Citizen G. P. Delicco EPA-HQ-OW-2009-0819-5204-A1 Private Citizen L. Davis EPA-HQ-OW-2009-0819-5205-A1 Private Citizen A. Vogel EPA-HQ-OW-2009-0819-5206-A1 Private Citizen K. Sobiesiak EPA-HQ-OW-2009-0819-5208-A1 Private Citizen D. Chabrul EPA-HQ-OW-2009-0819-5209-A1 Private Citizen P. Shelffo EPA-HQ-OW-2009-0819-5210-A1 Private Citizen W. Cartell EPA-HQ-OW-2009-0819-5211-A1 Private Citizen A. Chini EPA-HQ-OW-2009-0819-5212-A1 Private Citizen N. Feaver EPA-HQ-OW-2009-0819-5213-A1 Private Citizen H. Nonigan EPA-HQ-OW-2009-0819-5214-A1 Private Citizen N. Kostas EPA-HQ-OW-2009-0819-5215-A1 Private Citizen M. Miller EPA-HQ-OW-2009-0819-5216-A1 Private Citizen S. Cartwright EPA-HQ-OW-2009-0819-5217-A1 Private Citizen A. Woodard EPA-HQ-OW-2009-0819-5218-A1 Private Citizen J. Rivers EPA-HQ-OW-2009-0819-5219-A1 Private Citizen A. McMillian EPA-HQ-OW-2009-0819-5220-A1 Private Citizen S. Morales EPA-HQ-OW-2009-0819-5221-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen J. Morales EPA-HQ-OW-2009-0819-5222-A1 Private Citizen M. Millen EPA-HQ-OW-2009-0819-5223-A1 Private Citizen C. Babin EPA-HQ-OW-2009-0819-5224-A1 Private Citizen C. Stokes EPA-HQ-OW-2009-0819-5225-A1 Private Citizen S. Edler EPA-HQ-OW-2009-0819-5226-A1 Private Citizen J. Schaech EPA-HQ-OW-2009-0819-5227-A1 Private Citizen M. Hall EPA-HQ-OW-2009-0819-5228-A1 Private Citizen B. Skinner EPA-HQ-OW-2009-0819-5229-A1 Private Citizen J. Chenoweth EPA-HQ-OW-2009-0819-5230-A1 Private Citizen D. Brown EPA-HQ-OW-2009-0819-5231-A1 Private Citizen S. Caplan EPA-HQ-OW-2009-0819-5232-A1 Private Citizen D. Edgar EPA-HQ-OW-2009-0819-5233-A1 Private Citizen S. Reed EPA-HQ-OW-2009-0819-5234-A1 Private Citizen M. Parras EPA-HQ-OW-2009-0819-5235-A1 Private Citizen M. Brink EPA-HQ-OW-2009-0819-5236-A1 Private Citizen G. Thomson EPA-HQ-OW-2009-0819-5237-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-5238-A1 Private Citizen J. Demarest EPA-HQ-OW-2009-0819-5239-A1 Private Citizen O. Sholeye EPA-HQ-OW-2009-0819-5240-A1 Private Citizen P. D. Marion Jr. EPA-HQ-OW-2009-0819-5242-A1 Private Citizen A. Felnman EPA-HQ-OW-2009-0819-5243-A1 Private Citizen B. Kovalak EPA-HQ-OW-2009-0819-5244-A1 Private Citizen S. Briggs EPA-HQ-OW-2009-0819-5245-A1 Private Citizen J. Kirkland EPA-HQ-OW-2009-0819-5246-A1 Private Citizen W. A. Pollauf EPA-HQ-OW-2009-0819-5247-A1 Private Citizen T. Anspach EPA-HQ-OW-2009-0819-5248-A1 Private Citizen S. Degelia EPA-HQ-OW-2009-0819-5249-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-5250-A1 Private Citizen J. Erhard EPA-HQ-OW-2009-0819-5251-A1 Private Citizen name illegible EPA-HQ-OW-2009-0819-5252-A1 Private Citizen J. C. Sanders EPA-HQ-OW-2009-0819-5253-A1 Private Citizen L. Hollingsworth EPA-HQ-OW-2009-0819-5254-A1 Private Citizen A. Cryer EPA-HQ-OW-2009-0819-5255-A1 Private Citizen J. Cabello EPA-HQ-OW-2009-0819-5256-A1 Private Citizen A. Lewis EPA-HQ-OW-2009-0819-5257-A1 Private Citizen Rener (no surname provided) EPA-HQ-OW-2009-0819-5258-A1 Private Citizen A. Brightwell EPA-HQ-OW-2009-0819-5259-A1 Private Citizen N. Smith EPA-HQ-OW-2009-0819-5260-A1 Private Citizen T. Cecot-Scherer EPA-HQ-OW-2009-0819-5261-A1 Private Citizen Morgan (no surname provided) EPA-HQ-OW-2009-0819-5262-A1 Private Citizen M. Giglio EPA-HQ-OW-2009-0819-5263-A1 Private Citizen M. L. Riveria EPA-HQ-OW-2009-0819-5264-A1 Private Citizen S. Beauchamp EPA-HQ-OW-2009-0819-5265-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen M. B. Sayraf EPA-HQ-OW-2009-0819-5266-A1 Private Citizen H. M. Sherman EPA-HQ-OW-2009-0819-5267-A1 Private Citizen A. Thompson EPA-HQ-OW-2009-0819-5268-A1 Private Citizen A. Sopoicto EPA-HQ-OW-2009-0819-5269-A1 Private Citizen E. Burke EPA-HQ-OW-2009-0819-5270-A1 Private Citizen S. A. Sage EPA-HQ-OW-2009-0819-5271-A1 Private Citizen P. L. Taylor EPA-HQ-OW-2009-0819-5272-A1 Private Citizen J. Brown EPA-HQ-OW-2009-0819-5273-A1 Private Citizen L. A. Kusky EPA-HQ-OW-2009-0819-5274-A1 Private Citizen M. DeVries EPA-HQ-OW-2009-0819-5275-A1 Private Citizen K. Mogleo EPA-HQ-OW-2009-0819-5276-A1 Private Citizen M. Weiss EPA-HQ-OW-2009-0819-5277-A1 Private Citizen A. Eickbauer EPA-HQ-OW-2009-0819-5278-A1 Private Citizen R. A. Green EPA-HQ-OW-2009-0819-5279-A1 Private Citizen B. Merker EPA-HQ-OW-2009-0819-5280-A1 Private Citizen M. B. Hooker EPA-HQ-OW-2009-0819-5281-A1 Private Citizen R. Nelson EPA-HQ-OW-2009-0819-5282-A1 Private Citizen K. Randolph EPA-HQ-OW-2009-0819-5283-A1 Private Citizen I. A. Sanah EPA-HQ-OW-2009-0819-5284-A1 Private Citizen B. Pamachin EPA-HQ-OW-2009-0819-5285-A1 Private Citizen L. Paglin EPA-HQ-OW-2009-0819-5286-A1 Private Citizen K. Concord EPA-HQ-OW-2009-0819-5287-A1 Private Citizen L. Drickamer EPA-HQ-OW-2009-0819-5288-A1 Private Citizen D. N. Wilson EPA-HQ-OW-2009-0819-5289-A1 Private Citizen K. Honeycombe EPA-HQ-OW-2009-0819-5290-A1 Private Citizen D. Guerra EPA-HQ-OW-2009-0819-5291-A1 Private Citizen J. McFrier EPA-HQ-OW-2009-0819-5292-A1 Private Citizen J. Ireland EPA-HQ-OW-2009-0819-5293-A1 Private Citizen E. and G. McCray EPA-HQ-OW-2009-0819-5294-A1 Private Citizen J. Henderson EPA-HQ-OW-2009-0819-5295-A1 Private Citizen R. Tully EPA-HQ-OW-2009-0819-5296-A1 Private Citizen M. Hasler EPA-HQ-OW-2009-0819-5297-A1 Private Citizen C. P. Gerardy EPA-HQ-OW-2009-0819-5298-A1 Private Citizen G. B. Maynard EPA-HQ-OW-2009-0819-5299-A1 Private Citizen L. Stenerson EPA-HQ-OW-2009-0819-5300-A1 Private Citizen D. Burke EPA-HQ-OW-2009-0819-5301-A1 Private Citizen P. Nichols EPA-HQ-OW-2009-0819-5302-A1 Private Citizen J. Webb EPA-HQ-OW-2009-0819-5303-A1 Private Citizen L. Stenerson EPA-HQ-OW-2009-0819-5304-A1 Private Citizen C. Montgomery EPA-HQ-OW-2009-0819-5305-A1 Private Citizen A. M. Cooper EPA-HQ-OW-2009-0819-5306-A1 Private Citizen G. T. Chiles EPA-HQ-OW-2009-0819-5307-A1 Private Citizen P. Meske EPA-HQ-OW-2009-0819-5308-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen M. Clark EPA-HQ-OW-2009-0819-5309-A1 Private Citizen C. Wagner EPA-HQ-OW-2009-0819-5311-A1 Private Citizen J. Connors EPA-HQ-OW-2009-0819-5312-A1 Private Citizen L. Rykwalder EPA-HQ-OW-2009-0819-5313-A1 Private Citizen J. DeTomaso EPA-HQ-OW-2009-0819-5314-A1 Private Citizen L. Goddard EPA-HQ-OW-2009-0819-5315-A1 Private Citizen D. Cohen EPA-HQ-OW-2009-0819-5316-A1 Private Citizen D. Pereira EPA-HQ-OW-2009-0819-5317-A1 Private Citizen W. F. Lane and L. E. Coate EPA-HQ-OW-2009-0819-5318-A1 Private Citizen J. Reed EPA-HQ-OW-2009-0819-5319-A1 Private Citizen J. Davis and L. Kozel EPA-HQ-OW-2009-0819-5320-A1 Private Citizen A. R. Gray EPA-HQ-OW-2009-0819-5321-A1 Private Citizen J. P. Lane EPA-HQ-OW-2009-0819-5322-A1 Private Citizen A. S. Maddox EPA-HQ-OW-2009-0819-5323-A1 Private Citizen P. M. Donahue EPA-HQ-OW-2009-0819-5324-A1 Private Citizen R. Deacon EPA-HQ-OW-2009-0819-5325-A1 Private Citizen L. Wanfried EPA-HQ-OW-2009-0819-5326-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-5327-A1 Private Citizen C. Geer EPA-HQ-OW-2009-0819-5328-A1 Private Citizen N. Abilheira EPA-HQ-OW-2009-0819-5329-A1 Private Citizen A. Yarger EPA-HQ-OW-2009-0819-5330-A1 Private Citizen G. Anastasi EPA-HQ-OW-2009-0819-5331-A1 Private Citizen (name illegible) EPA-HQ-OW-2009-0819-5332-A1 Private Citizen L. Desrouleaux EPA-HQ-OW-2009-0819-5333-A1 Private Citizen D. Kramer EPA-HQ-OW-2009-0819-5335-A1 Private Citizen S. Makell EPA-HQ-OW-2009-0819-5336-A1 Private Citizen M. Greer EPA-HQ-OW-2009-0819-5337-A1 Private Citizen A. Hempell EPA-HQ-OW-2009-0819-5338-A1 Private Citizen (name illegible) EPA-HQ-OW-2009-0819-5339-A1 Private Citizen M. R. Diprofio EPA-HQ-OW-2009-0819-5340-A1 Private Citizen T. McPherson EPA-HQ-OW-2009-0819-5341-A1 Private Citizen K. Whitsel EPA-HQ-OW-2009-0819-5342-A1 Private Citizen G. McIntire EPA-HQ-OW-2009-0819-5343-A1 Private Citizen K. Ruberg EPA-HQ-OW-2009-0819-5344-A1 Private Citizen D. J. Freeman EPA-HQ-OW-2009-0819-5345-A1 Private Citizen S. Peluso EPA-HQ-OW-2009-0819-5346-A1 Private Citizen C. Grant EPA-HQ-OW-2009-0819-5347-A1 Private Citizen S. Haider EPA-HQ-OW-2009-0819-5348-A1 Private Citizen P. Peters EPA-HQ-OW-2009-0819-5349-A1 Private Citizen G. K. Riel EPA-HQ-OW-2009-0819-5350-A1 Private Citizen B. McLean EPA-HQ-OW-2009-0819-5351-A1 Private Citizen G. Parizeau EPA-HQ-OW-2009-0819-5352-A1 Private Citizen A. Stone EPA-HQ-OW-2009-0819-5353-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen Kaley (no surname provided) EPA-HQ-OW-2009-0819-5354-A1 Private Citizen S. Torroella EPA-HQ-OW-2009-0819-5355-A1 Private Citizen W. Fitch EPA-HQ-OW-2009-0819-5356-A1 Private Citizen L. Bingham EPA-HQ-OW-2009-0819-5357-A1 Private Citizen S. Berns EPA-HQ-OW-2009-0819-5358-A1 Private Citizen M. Tran EPA-HQ-OW-2009-0819-5359-A1 Private Citizen J. W. Foster EPA-HQ-OW-2009-0819-5360-A1 Private Citizen J. R. Cubley EPA-HQ-OW-2009-0819-5361-A1 Private Citizen A. R. Allen EPA-HQ-OW-2009-0819-5362-A1 Private Citizen L. Arglebon EPA-HQ-OW-2009-0819-5363-A1 Private Citizen B. Fannily EPA-HQ-OW-2009-0819-5364-A1 Private Citizen T. A. Nickels EPA-HQ-OW-2009-0819-5365-A1 Private Citizen T. Bailey EPA-HQ-OW-2009-0819-5366-A1 Private Citizen Rose (surname illegible) EPA-HQ-OW-2009-0819-5367-A1 Private Citizen V. Soriano EPA-HQ-OW-2009-0819-5368-A1 Private Citizen M. Rodriquez EPA-HQ-OW-2009-0819-5369-A1 Private Citizen W. King EPA-HQ-OW-2009-0819-5370-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-5372-A1 Private Citizen R. Saliss EPA-HQ-OW-2009-0819-5374-A1 Private Citizen M. Mckibbin EPA-HQ-OW-2009-0819-5375-A1 Private Citizen W. Sheckler EPA-HQ-OW-2009-0819-5376-A1 Private Citizen M. Long EPA-HQ-OW-2009-0819-5377-A1 Private Citizen C. Ryder EPA-HQ-OW-2009-0819-5379-A1 Private Citizen (name illegible) EPA-HQ-OW-2009-0819-5380-A1 Private Citizen E. Carson EPA-HQ-OW-2009-0819-5381-A1 Private Citizen P. Wentz EPA-HQ-OW-2009-0819-5382-A1 Private Citizen S. Balser EPA-HQ-OW-2009-0819-5383-A1 Private Citizen F. and G. Hatky EPA-HQ-OW-2009-0819-5384-A1 Private Citizen K. Brooks EPA-HQ-OW-2009-0819-5385-A1 Private Citizen T. Avery EPA-HQ-OW-2009-0819-5387-A1 Private Citizen H. Grijial EPA-HQ-OW-2009-0819-5388-A1 Private Citizen L. Laykasek EPA-HQ-OW-2009-0819-5390-A1 Private Citizen L. Laykasek EPA-HQ-OW-2009-0819-5391-A1 Private Citizen R. Rosencrante EPA-HQ-OW-2009-0819-5392-A1 Private Citizen J. Young EPA-HQ-OW-2009-0819-5393-A1 Private Citizen T. Szanto EPA-HQ-OW-2009-0819-5394-A1 Private Citizen P. Loudin EPA-HQ-OW-2009-0819-5395-A1 Private Citizen D. Davis EPA-HQ-OW-2009-0819-5396-A1 Private Citizen N. Rogers EPA-HQ-OW-2009-0819-5397-A1 Private Citizen M. Barnett EPA-HQ-OW-2009-0819-5398-A1 Private Citizen K. Kinkey EPA-HQ-OW-2009-0819-5399-A1 Private Citizen S. Halley EPA-HQ-OW-2009-0819-5401-A1 Private Citizen J. Yuknas EPA-HQ-OW-2009-0819-5402-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen C. Sison EPA-HQ-OW-2009-0819-5403-A1 Private Citizen S. Lott EPA-HQ-OW-2009-0819-5404-A1 Private Citizen D. Nasky EPA-HQ-OW-2009-0819-5405-A1 Private Citizen D. 0. Norris EPA-HQ-OW-2009-0819-5407-A1 Private Citizen J. Kinchy EPA-HQ-OW-2009-0819-5409-A1 Private Citizen B. Tree EPA-HQ-OW-2009-0819-5410-A1 Private Citizen B. Tree EPA-HQ-OW-2009-0819-5411-A1 Private Citizen K. Colvin EPA-HQ-OW-2009-0819-5412-A1 Private Citizen W. karger EPA-HQ-OW-2009-0819-5414-A1 Private Citizen M. Mannas EPA-HQ-OW-2009-0819-5415-A1 Private Citizen M. Baulidge EPA-HQ-OW-2009-0819-5417-A1 Private Citizen G. Ellen EPA-HQ-OW-2009-0819-5420-A1 Private Citizen A. Nogay EPA-HQ-OW-2009-0819-5421-A1 Private Citizen M. Dave EPA-HQ-OW-2009-0819-5422-A1 Private Citizen P. Yeamen EPA-HQ-OW-2009-0819-5423-A1 Private Citizen D. Ingram EPA-HQ-OW-2009-0819-5424-A1 Private Citizen P. Deleon EPA-HQ-OW-2009-0819-5425-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-5426-A1 Private Citizen J. Holeler EPA-HQ-OW-2009-0819-5428-A1 Private Citizen K. Hawke EPA-HQ-OW-2009-0819-5429-A1 Private Citizen J. W. Mason EPA-HQ-OW-2009-0819-5430-A1 Private Citizen C. Milner EPA-HQ-OW-2009-0819-5431-A1 Private Citizen M. Dix EPA-HQ-OW-2009-0819-5433-A1 Private Citizen V. Mahalingam EPA-HQ-OW-2009-0819-5434-A1 Private Citizen Grant H. (no surname provided) EPA-HQ-OW-2009-0819-5435-A1 Private Citizen M. Eizker EPA-HQ-OW-2009-0819-5436-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-5437-A1 Private Citizen L. Newmann EPA-HQ-OW-2009-0819-5438-A1 Private Citizen F. Deelongh EPA-HQ-OW-2009-0819-5439-A1 Private Citizen C. Gabriel EPA-HQ-OW-2009-0819-5440-A1 Private Citizen J. Yeomars EPA-HQ-OW-2009-0819-5441-A1 Private Citizen H. Millison EPA-HQ-OW-2009-0819-5442-A1 Private Citizen (name illegible) EPA-HQ-OW-2009-0819-5443-A1 Private Citizen R. Iuppa EPA-HQ-OW-2009-0819-5444-A1 Private Citizen L. L. Pecora EPA-HQ-OW-2009-0819-5445-A1 Private Citizen S. Eberbach EPA-HQ-OW-2009-0819-5446-A1 Private Citizen A. M. Dunn EPA-HQ-OW-2009-0819-5448-A1 Private Citizen S. M. Varis EPA-HQ-OW-2009-0819-5449-A1 Private Citizen S. Marcetic EPA-HQ-OW-2009-0819-5451-A1 Private Citizen H. L. Gauntt EPA-HQ-OW-2009-0819-5452-A1 Private Citizen E. D. Piehl and M. MacCleery EPA-HQ-OW-2009-0819-5453-A1 Private Citizen J. Pilla EPA-HQ-OW-2009-0819-5455-A1 Private Citizen L. Roper EPA-HQ-OW-2009-0819-5456-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen M. Cappleman EPA-HQ-OW-2009-0819-5457-A1 Private Citizen S. Nagel EPA-HQ-OW-2009-0819-5458-A1 Private Citizen C. Kavulia EPA-HQ-OW-2009-0819-5459-A1 Private Citizen J. Luttermoser EPA-HQ-OW-2009-0819-5460-A1 Private Citizen C. Wagner EPA-HQ-OW-2009-0819-5461-A1 Private Citizen J. Concord EPA-HQ-OW-2009-0819-5462-A1 Private Citizen T. Black EPA-HQ-OW-2009-0819-5463-A1 Private Citizen W. OConnor EPA-HQ-OW-2009-0819-5464-A1 Private Citizen M. Davis EPA-HQ-OW-2009-0819-5465-A1 Private Citizen M. Harthorn EPA-HQ-OW-2009-0819-5466-A1 Private Citizen C. F. Schlegel EPA-HQ-OW-2009-0819-5467-A1 Private Citizen N. Berkley EPA-HQ-OW-2009-0819-5468-A1 Private Citizen R. Leib EPA-HQ-OW-2009-0819-5469-A1 Private Citizen J. Chateau EPA-HQ-OW-2009-0819-5470-A1 Private Citizen (name illegible) EPA-HQ-OW-2009-0819-5471-A1 Private Citizen P. Haley-Stark EPA-HQ-OW-2009-0819-5473-A1 Private Citizen J. C. Carley EPA-HQ-OW-2009-0819-5474-A1 Private Citizen J. Tinsley EPA-HQ-OW-2009-0819-5475-A1 Private Citizen J. Handley EPA-HQ-OW-2009-0819-5476-A1 Private Citizen R. Longoria EPA-HQ-OW-2009-0819-5477-A1 Private Citizen R. W.Becker EPA-HQ-OW-2009-0819-5478-A1 Private Citizen D. Chesbro EPA-HQ-OW-2009-0819-5479-A1 Private Citizen J. Hopkins EPA-HQ-OW-2009-0819-5480-A1 Private Citizen David (surname illegible) EPA-HQ-OW-2009-0819-5481-A1 Private Citizen R. Nobleman EPA-HQ-OW-2009-0819-5482-A1 Private Citizen J. Hoopengarder EPA-HQ-OW-2009-0819-5483-A1 Private Citizen (name illegible) EPA-HQ-OW-2009-0819-5484-A1 Private Citizen R. Sleater EPA-HQ-OW-2009-0819-5485-A1 Private Citizen Anonymous EPA-HQ-OW-2009-0819-5486-A1 Private Citizen Z. Friedman EPA-HQ-OW-2009-0819-5487-A1 Private Citizen P. Beckert EPA-HQ-OW-2009-0819-5491-A1 Private Citizen (name illegible) EPA-HQ-OW-2009-0819-5492-A1 Private Citizen S. Blake EPA-HQ-OW-2009-0819-5493-A1 Private Citizen S. Levy EPA-HQ-OW-2009-0819-5494-A1 Private Citizen J. W. Williams EPA-HQ-OW-2009-0819-5495-A1 Private Citizen B. H. Garby EPA-HQ-OW-2009-0819-5496-A1 Private Citizen B. Muller EPA-HQ-OW-2009-0819-5497-A1 Private Citizen K. Dorsey EPA-HQ-OW-2009-0819-5498-A1 Private Citizen R. Irons EPA-HQ-OW-2009-0819-5499-A1 Private Citizen J. Walsh EPA-HQ-OW-2009-0819-5500-A1 Private Citizen C. Porter EPA-HQ-OW-2009-0819-5501-A1 Private Citizen K. Echchawk EPA-HQ-OW-2009-0819-5502-A1 Private Citizen W. and J. Zelinsky EPA-HQ-OW-2009-0819-5503-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN Private Citizen G. Dowd EPA-HQ-OW-2009-0819-5504-A1 Private Citizen J. Burton EPA-HQ-OW-2009-0819-5505-A1 Private Citizen C. McAndrews EPA-HQ-OW-2009-0819-5506-A1 Private Citizen E. Mihalek EPA-HQ-OW-2009-0819-5507-A1 Private Citizen S. W. Bodnovich EPA-HQ-OW-2009-0819-5508-A1 Private Citizen K. Staedter EPA-HQ-OW-2009-0819-5511-A1 Private Citizen J. Vreeland EPA-HQ-OW-2009-0819-5512-A1 Private Citizen D. Yanusz EPA-HQ-OW-2009-0819-5514-A1 Private Citizen S. Maldonado EPA-HQ-OW-2009-0819-5515-A1 Private Citizen B. Rose EPA-HQ-OW-2009-0819-5516-A1 Private Citizen Sherry (last name illegible) EPA-HQ-OW-2009-0819-5518-A1 Private Citizen J. Dome EPA-HQ-OW-2009-0819-5519-A1 Private Citizen S. Cappleman EPA-HQ-OW-2009-0819-5520-A1 Public Hearing Transcript Public Hearing Transcript EPA-HQ-OW-2009-0819-3920-A1 Public Service Company of New Hampshire(PSNH) Tom DeLawrence EPA-HQ-OW-2009-0819-4633-A1

Raven Power Holdings, LLC Raven Power Holdings, LLC EPA-HQ-OW-2009-0819-4467-A1 Salt River Project Agricultural Improvement and Power District (SRP) Kara Montaivo EPA-HQ-OW-2009-0819-4179-A1

San Miguel Electric Cooperative, Inc. Joseph G. Eutizi EPA-HQ-OW-2009-0819-4485-A1

Santee Cooper Jay Hudson EPA-HQ-OW-2009-0819-4476-A1 Seminole Electric Cooperative, Inc. (SECI) Mike Roddy EPA-HQ-OW-2009-0819-4518-A2

Sierra Club Marc Imlay EPA-HQ-OW-2009-0819-3920-A25 Sierra Club Mary Anne Hitt EPA-HQ-OW-2009-0819-3920-A27 Sierra Club Casey Roberts EPA-HQ-OW-2009-0819-4810-A1 South Carolina Electric & Gas (SCE&G) Thomas N. Effinger EPA-HQ-OW-2009-0819-4593-A1

Southern Company Chris M. Hobson EPA-HQ-OW-2009-0819-4379-A1 Southern Illinois Power Cooperative (SIPC) Leonard F. Hopkins EPA-HQ-OW-2009-0819-4309-A1

Southern Nuclear Operating Company (SNC) Gregory D. Elmore EPA-HQ-OW-2009-0819-4582-A1
Tampa Electric Company (TEC) Paul Carpmone EPA-HQ-OW-2009-0819-4520-A2 Tennessee Valley Authority (TVA) John W. Myers EPA-HQ-OW-2009-0819-4607-A1 Texas Clean Water Action, et al. David Foster EPA-HQ-OW-2009-0819-4667-A2 Texas Commission on Environmental Quality (TCEQ) Zak Covar EPA-HQ-OW-2009-0819-4985-A2
Texas Municipal Power Agency (TMPA) H. Morriss Barney IV EPA-HQ-OW-2009-0819-4584-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA's Response to Public Comments

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Commenter Affiliation Commenter Name DCN The Large Public Power Council (LPPC) Erin Bartlett EPA-HQ-OW-2009-0819-4573-A1

TransAlta Centralia Generation, LLC (TCG) Brian Brazil EPA-HQ-OW-2009-0819-4665-A2

Tri-State Generation and Transmission Association, Inc. Barbara A. Walz EPA-HQ-OW-2009-0819-4465-A1

U.S. Small Business Administration, Office of Advocacy Winslow Sargeant EPA-HQ-OW-2009-0819-4477-A1

Unknown Mass Email Campaign Unknown Mass Email Campaign EPA-HQ-OW-2009-0819-4679-A1 Utility Solid Waste Activities Group (USWAG) James R. Roewer EPA-HQ-OW-2009-0819-4652-A1
Utility Water Act Group (UWAG) Elizabeth E. Aldridge, Hunton & Williams EPA-HQ-OW-2009-0819-4655

UWAG Elizabeth E. Aldridge, Hunton & Williams EPA-HQ-OW-2009-0819-4655-A1

UWAG Elizabeth E. Aldridge, Hunton & Williams EPA-HQ-OW-2009-0819-4655-A18

UWAG Elizabeth E. Aldridge, Hunton & Williams EPA-HQ-OW-2009-0819-4655-A2

UWAG Elizabeth E. Aldridge, Hunton & Williams EPA-HQ-OW-2009-0819-4655-A26

Vectren Corporation Lisa C. Messinger EPA-HQ-OW-2009-0819-4317-A1 Wabash Valley Power Association, Inc. (WVPA) S. Dear Schramm-Satayathum EPA-HQ-OW-2009-0819-4534-A2

We Energies Bruce W. Ramme EPA-HQ-OW-2009-0819-4475-A1 Westar Energy Jared Morrison EPA-HQ-OW-2009-0819-4469-A1 Wisconsin Public Service Corporation (WPS) Mark W. Metcalf EPA-HQ-OW-2009-0819-4770-A2

Wise Energy for Virginia Coalition Whitney Byrd EPA-HQ-OW-2009-0819-3920-A38 Xcel Energy Lisa Carty EPA-HQ-OW-2009-0819-4458-A1Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category:

EPA’s Response to Public Comments



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## Appendix D: Comment Response Index Listing the Comment Submittals Ordered by DCN and Identifying the Comment ExcerptsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2265 1 1.a.i General Support EPA-HQ-OW-2009-0819-2267-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2268-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2269-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-2270-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2271-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2272-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2273-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2274-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2275-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2275-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-2276-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2277-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2278-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2279-A1 3 1.a.i General Support EPA-HQ-OW-2009-0819-2281-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2282-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2283-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2284-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2285-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2286-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2287-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2288-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2289-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2290-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2291-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2292-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2293-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2294-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2295-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2296-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2297-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2298-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2299-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2300-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2301-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2302-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2303-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2304-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2305-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2306-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2307-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2308-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2309-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2310-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2311-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2312-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2314-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2315-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2316-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2317-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2318-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2319-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2320-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2321-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2322-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2323-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2324-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2325-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2326-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2327-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2328-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2330-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2331-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2332-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2333-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2334-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2335-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2336-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2337-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2338-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2339-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2340-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2341-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2342-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2344-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2347-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-2347-A1 2 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2348-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2349-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2350-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2351-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2352-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2353-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2354-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2355-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2356-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2357-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2358-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2359-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2360-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2361-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2362-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2363-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2364-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2365-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2366-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2367-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2368-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2369-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2370-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2371-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2372-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2373-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2374-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2376-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2378-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2379-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2380-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2381-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2382-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2383-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2384-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2385-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2386-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2387-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2388-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2389-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2390-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2391-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2392-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2393-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2394-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-2395-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2396-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2397-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2398-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2399-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2400-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2401-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2402-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2403-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2404-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2407-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2409-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2410-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2411-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2412-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2413-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2414-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2415-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2416-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2417-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2418-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2419-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2420-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2421-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2422-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2423-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2424-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2425-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2426-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2427-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2428-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2429-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2430-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2432-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2433-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2434-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2435-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2436-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2438-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2439-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2440-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2441-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2443-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2445-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2446-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2447-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2449-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2450-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2451-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2452-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2453-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2454-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2455-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2456-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2457-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2458-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2459-A1 1 1.a.ii Overly Generalized/Out-of-ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2460-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2461-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2462-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2463-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2464-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2465-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2466-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2467-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2469-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2470-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2471-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2472-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2473-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2474-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2476-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2477-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2478-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2479-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2480-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2482-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2483-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2484-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2485-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2486-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2488-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2489-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2490-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2491-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2492-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2494-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2495-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2496-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2497-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2498-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2499-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2500-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2501-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2502-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2504-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2505-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2507-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2509-A1 1 1.a.ii Overly Generalized/Out-of-Scope

EPA-HQ-OW-2009-0819-2512-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-2513-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-2514-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-2516-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2517-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2518-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2519-A1 1 1.a.ii Overly Generalized/Out-of-Scope

EPA-HQ-OW-2009-0819-2520-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-2521-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2523-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2524-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2526-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-2527-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2528-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2529-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2530-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2531-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2533-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2534-A1 1 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-2536-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-2537-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-2541-A1 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-2542-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2543-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2544-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2545-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2545-A1 2 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2546-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2547-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2549-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2550-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2551-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2552-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2553-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2555-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2556-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2557-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2558-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2560-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-2560-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-2561-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2562-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2563-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2564-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2565-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2566-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2567-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2568-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2571-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2572-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2573-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2574-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2575-A1 1 1.a.ii Overly Generalized/Out-of-Scope

EPA-HQ-OW-2009-0819-2576-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-2577-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2578-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2579-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2580-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2581-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2582-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2583-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2584-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2585-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2588-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2589-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2591-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2594-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2595-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2596-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2597-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2598-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2599-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2600-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2601-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2602-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2603-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2604-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2605-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2607-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2609-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2610-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2612-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2613-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2614-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2615-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2616-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2617-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2618-A1 1 1.a.ii Overly Generalized/Out-of-ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2620-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2621-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2622-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2623-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2624-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2625-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2626-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2627-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2628-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2629-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2631-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2632-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2633-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2634-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2635-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2636-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2637-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2638-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2639-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2640-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2641-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2642-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2643-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2644-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2645-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2646-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2647-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2648-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2649-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2650-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2651-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2652-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2657-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2659-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2661-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2662-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2663-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2664-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2665-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2666-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2668-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2669-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2671-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2672-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2673-A1 1 1.a.ii Overly Generalized/Out-of-ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2674-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2675-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2676-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2677-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2678-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2679-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2680-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2681-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2682-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2683-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2683-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-2684-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2685-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2688-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2691-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2692-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2693-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2694-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2695-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2696-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2699-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2700-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2701-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2702-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2702-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-2702-A1 3 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2703-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2704-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-2705-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-2706-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2707-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2708-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2709-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2710-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2711-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2712-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2713-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2715-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2717 1 1.a.i General Support EPA-HQ-OW-2009-0819-2718-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2719-A1 1 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-2720-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2721-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2721-A1 2 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2722-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2723-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2724-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2725-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2726-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2727-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2728-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2729-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2732-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2733-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2734-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2735-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2736-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2737-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2738-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2739-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-2741-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-2742 1 1.a.i General Support EPA-HQ-OW-2009-0819-2744-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2745-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2746-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2747-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2748-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2750-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-2751-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2752-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2753-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2754-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2756-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2757-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2758-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2765-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2766-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2770-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2771-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2772-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2773-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2774-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2775-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2776-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2777-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2778-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2779-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2780-A1 1 1.a.ii Overly Generalized/Out-of-ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2782-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2783-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2784-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2785-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2786-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2787-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2788-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2789-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2790-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2791-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2792-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2793-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2794-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2795-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2796-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2797-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2798-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2799-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2800-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2801-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2802-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2803-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2804-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2805-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2806-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2807-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2808-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2809-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2810-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2811-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2812-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2813-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2814-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2815-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2817-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2818-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2819-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2821-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2823-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2824-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2825-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2826-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2827-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2828-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2829-A1 1 1.a.ii Overly Generalized/Out-of-ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2830-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2831-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2832-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2833-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2837-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2838-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2839-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2840-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2841-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2842-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2843-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2844-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2845-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2846-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2847-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2848-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2849-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2851-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2853-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2858-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-2859-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2860-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2861-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2862-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2863-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2864-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2865-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2867-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2868-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2869-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2870-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2871-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2872-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2873-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2874-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2875-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2877-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2878-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2879-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2881-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2882-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2883-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2885-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2886-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2889-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2890-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2891-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2892-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2893-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2894-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2898-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2899-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2900-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2901-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2903-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2906-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2907-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2908-A1 1 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-2909-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2910-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2911-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2912-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2913-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2914-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2917-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-2919-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-2919-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-2922-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2924-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2925-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2926-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-2927-A1 1 16.e Zero Discharge Bottom Ash – Other Technology Options EPA-HQ-OW-2009-0819-2928-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2933 1 1.a.i General Support

EPA-HQ-OW-2009-0819-2933 2 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-2933 3 1.a.i General Support

EPA-HQ-OW-2009-0819-2933 4 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-2937-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2938-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-2938-A1 2 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-2939-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2941-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2942-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2947-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2948-A1 1 25.b.iii EA Impacts – Sensitive EnvironmentsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-2949-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2949-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-2952-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2953-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-2954-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2955-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2956-A1 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-2957-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2959-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2960-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2961-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2963-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2964-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2966-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2969-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2971-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2977-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2978-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2979-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2980-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2981-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2982-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2983-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2984-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2987-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2988-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2989-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2991-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2993-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2994-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-2995-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2996-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-2997-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-2998 1 1.a.i General Support EPA-HQ-OW-2009-0819-3000-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3001-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3002-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3003-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3004-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3004-A1 2 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3006-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3007-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3010-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3011-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3012-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3020-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3021-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-3037 1 1.a.i General Support EPA-HQ-OW-2009-0819-3037 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-3037 3 6.i.i Support/oppose Zero Discharge

EPA-HQ-OW-2009-0819-3037 4 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3038-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3044-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3046-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3046-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3048-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3050-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3057-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3062-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3064-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3065-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3066-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3067-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3070-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3072-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3073-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3079-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3080-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3082-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3089-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3091-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3101-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3102-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3103-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-3104-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-3105-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3105-A1 2 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3107-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3108-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3109-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3109-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3110-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3111-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3113-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3114-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3115-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3117-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3118-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3119-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3120-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3121-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3123-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3124-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3125-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3126-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3126-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3127-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3128-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3129-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3130-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3131-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3134-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3135-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3140-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-3145-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3147-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3155-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3155-A1 2 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3156-A1 1 25.b.iv EA Impacts – Wildlife

EPA-HQ-OW-2009-0819-3156-A1 2 25.b.vi EA Impacts – Other Impacts/Exposure Pathway EPA-HQ-OW-2009-0819-3157-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3158-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3159-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3161-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3162-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3163-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3173-A1 1 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-3174-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3175-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3176-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3177-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3178-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3179-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3180-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3181-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3184-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3185-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3190-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3191-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3192-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3194-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3196-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3197-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3199-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3200-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3201-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3202-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3203-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3204-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3205-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3206-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3207-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3208-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3209-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3210-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3214-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3215-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3218-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3219-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3220-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3221-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3222-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3224-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3225-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3227-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3228-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3230-A1 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-3231-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3232-A1 1 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-3233-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3234-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3235-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-3236-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3237-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3238-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3239-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3240-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3242-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3244-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3245-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3246-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3247-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3249-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3259-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3263-A1 1 1.a.ii Overly Generalized/Out-of-ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3265 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-3266-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3268-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3271-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3273-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3276-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3278-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3279-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3281-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3282-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3284-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3285-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3286-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3287-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3292-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3292-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3294 1 1.a.i General Support EPA-HQ-OW-2009-0819-3305-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3307-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3308-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3310-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3311-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3312-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3313-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3314-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3315-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3316-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3317-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3319-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3319-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3321-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3322-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3325-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3327-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3328-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3331-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3333-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3336-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3339-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3342 1 1.a.i General Support EPA-HQ-OW-2009-0819-3343-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3344-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3346-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3348-A1 1 1.a.ii Overly Generalized/Out-of-ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3350-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3351-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3355-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3357-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3362-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3365-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3366-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3370-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3371-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3374-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3375-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3376-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3377-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3378-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3381-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3382-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3383-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3384-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3385-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3387-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3388-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3389-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3390-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3392-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3394-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3397-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3406-A1 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-3410 1 1.a.i General Support EPA-HQ-OW-2009-0819-3411-A1 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-3411-A1 2 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-3411-A1 3 6 Regulatory Options EPA-HQ-OW-2009-0819-3411-A1 4 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-3411-A1 5 5.b Scope and Applicability – Subcategorization EPA-HQ-OW-2009-0819-3411-A1 6 28.j Econ – EOs 12866 and 13563

EPA-HQ-OW-2009-0819-3411-A1 8 28.b Econ – Total costs and economic impact analyses assumptions

EPA-HQ-OW-2009-0819-3411-A1 9 28.f Econ – Electricity rate and household impacts

EPA-HQ-OW-2009-0819-3411-A1 10 28.b Econ – Total costs and economic impact analyses assumptions

EPA-HQ-OW-2009-0819-3411-A1 11 28.b Econ – Total costs and economic impact analyses assumptions EPA-HQ-OW-2009-0819-3411-A1 12 6.f Regulatory Options - General MethodologyEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-3411-A1 13 28.f Econ – Electricity rate and household impacts

EPA-HQ-OW-2009-0819-3411-A1 14 28.b Econ – Total costs and economic impact analyses assumptions EPA-HQ-OW-2009-0819-3411-A1 15 29.c Benefits – Human health benefits

EPA-HQ-OW-2009-0819-3411-A1 17 28.b Econ – Total costs and economic impact analyses assumptions

EPA-HQ-OW-2009-0819-3411-A1 18 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-3411-A1 19 28.l Econ – Other comments EPA-HQ-OW-2009-0819-3411-A1 22 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-3412-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3413-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3414-A1 1 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-3415-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3416-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3417-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3418-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3419-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3420-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3421-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3422-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3423-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3424-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3425-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3426-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3427-A1 1 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-3428-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3429-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3430-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3431-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3432-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3433-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3434-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3435-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3436-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3437-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3438-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3439-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3440-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3441-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3443-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3445-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3446-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-3451-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3452-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3453-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3455-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3456-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3457-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3458-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3459-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3460-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3460-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3462-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3463-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3464-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3465-A1 1 1.a.ii Overly Generalized/Out-of-Scope

EPA-HQ-OW-2009-0819-3466-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3467-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3468-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3469-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3471-A1 1 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-3472-A1 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-3473-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3474-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3475-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3476-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3477-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3479-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3480-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3481-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3482-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3483-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3484-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3485-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3486-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3487-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3490-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3491-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3492-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3493-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3494-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3495-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-3496-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3497-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3498-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3499-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3500-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3501-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3502-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3502-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3503-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3504-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3505-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3506-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3507-A1 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-3509-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3509-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3511-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3514-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3514-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3515-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3516-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3518-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3519-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3521-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3523-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3524-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3525-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3526-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3527-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3528-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3529-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3530-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3531-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3532-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3533-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3534-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3535-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3536-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3538-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3539-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3540-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3541-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3542-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3543-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3544-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3545-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3546-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3546-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3547-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3548-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3549-A1 1 28.j Econ – EOs 12866 and 13563 EPA-HQ-OW-2009-0819-3550-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3551-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3553-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3554-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3555-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3556-A1 1 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-3557-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3558-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3559-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3560-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3561-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3562-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3563-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3564-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3565-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3566-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3567-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3568-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3569-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3571-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3573-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3574-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3575-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3576-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3577-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3578-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3579-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3580-A1 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-3582-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3583-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3584-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3585-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3586-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3587-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3588-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3588-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3590-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3591-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3592-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3593-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3594-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3595-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3596-A1 1 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-3597-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3598-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3599-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3600-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3602-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3603-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3604-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3605-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3606-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3607-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3608-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3609-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3610-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3611-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3612-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3613-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3614-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3615-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3616-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3617-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3618-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3619-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3620-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3621-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3622-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3623-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3624-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3626-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3627-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3628-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3629-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3630-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3631-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3632-A1 1 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3633-A1 1 1.a.ii Overly Generalized/Out-of-ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3634-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3635-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3636-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3637-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3640-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3643-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3644-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3646-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3647-A1 1 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-3648-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3649-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3650-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3651-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3651-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3653-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3654-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3655-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3657-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3658-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-3659-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3660-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3661-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3662-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3664-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3665-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3666-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3667-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3668-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3669-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3670-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3672-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3673-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3674-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3675-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3676-A1 1 6.i.i Support/oppose Zero Discharge

EPA-HQ-OW-2009-0819-3676-A1 2 25.b.vi EA Impacts – Other Impacts/Exposure Pathway EPA-HQ-OW-2009-0819-3676-A1 3 27 Coordination with Other EPA Rules

EPA-HQ-OW-2009-0819-3676-A1 4 27.a Coordination – OAR/Cross-State Air Pollution Rule (CSAPR) EPA-HQ-OW-2009-0819-3677-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3679-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3680-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3681-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3682-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3683-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3685-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3686-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3687-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3688-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3689-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3690-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3690-A1 3 25.b.vi EA Impacts – Other Impacts/Exposure Pathway EPA-HQ-OW-2009-0819-3691-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3691-A1 2 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-3692-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3693-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3694-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3695-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3696-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3696-A1 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-3696-A1 3 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-3697-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3698-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3698-A1 2 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-3699-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3701-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3702-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3704-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3705-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3706-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3707-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3708-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3710-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3711-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3712-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3713-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3714-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3715-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3716-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3719-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3720-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-3721-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3722-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3723-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3725-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3726-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3727-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3728-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3730-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3731-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3732-A1 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-3733-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3734-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3735-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3736-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3737-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3738-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3739-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3740-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3741-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3742-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3743-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3746-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3748-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3749-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3750-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3751-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3752-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3753-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3755-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3756-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3757-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3759-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3760-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3762-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3762-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3764-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3765-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3766-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3767-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3769-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3770-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3771-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3772-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3773-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3774-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3775-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3776-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3777-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3778-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3779-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3780-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3781-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3782-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3783-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3784-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3786-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3788-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3788-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3789-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3790-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3791-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3792-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3793-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3794-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3795-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3796-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3797-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3798-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3799-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3800-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3801-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3802-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3803-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3804-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3805-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3806-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3807-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3808-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3809-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3810-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3811-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3812-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3813-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3814-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3815-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3816-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3817-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3818-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3819-A1 1 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-3820-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3821-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3822-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3824-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3825-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3826-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3827-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3828-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3829-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3829-A1 2 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3830-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3831-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3832-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3833-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3834-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3835-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3836-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3836-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3837-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3838-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3839-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3840-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3841-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3842-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3843-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3844-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3845-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3846-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3847-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3848-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3849-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3850-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3852-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3853 1 1.a.i General Support EPA-HQ-OW-2009-0819-3854 1 1.a.i General Support EPA-HQ-OW-2009-0819-3855 1 1.a.i General Support EPA-HQ-OW-2009-0819-3856-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3857-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3858-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3860-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3861-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3862-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3863-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3864-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-3865-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3866-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3867-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3868-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3869-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3870-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3871-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3872-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3873-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3874-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3875-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3876-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3878-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3879-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3880-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3881-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3882-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3883-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3884-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3885-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3886-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3887-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3889-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3890-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3891-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3892-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3893-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3894-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3895-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3896-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3897-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3899-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3900-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3902-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3903-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3904-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3905-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3906-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3907-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3907-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-3908-A1 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-3909-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3910-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3911-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3913-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3914-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3915-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3916-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3917-A1 1 1.a.ii Overly Generalized/Out-of-ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

10-212

DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3918-A1 1 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-3919 1 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 2 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-3920-A1 3 25.c EA – Loadings Analyses EPA-HQ-OW-2009-0819-3920-A1 4 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 5 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 6 29.j Benefits – Total benefits

EPA-HQ-OW-2009-0819-3920-A1 7 28.b Econ – Total costs and economic impact analyses assumptions EPA-HQ-OW-2009-0819-3920-A1 8 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-3920-A1 9 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 10 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-3920-A1 11 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-3920-A1 12 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-3920-A1 13 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 14 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 15 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-3920-A1 16 25.b.vii EA Impacts – Chesapeake Bay EPA-HQ-OW-2009-0819-3920-A1 17 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-3920-A1 18 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-3920-A1 19 29.j Benefits – Total benefits EPA-HQ-OW-2009-0819-3920-A1 20 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 21 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 22 25.b.iii EA Impacts – Sensitive Environments

EPA-HQ-OW-2009-0819-3920-A1 23 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-3920-A1 25 25.c EA – Loadings Analyses EPA-HQ-OW-2009-0819-3920-A1 26 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-3920-A1 27 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-3920-A1 28 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 29 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3920-A1 30 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A1 31 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-3920-A1 32 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-3920-A1 33 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-3920-A1 34 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3920-A1 35 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-3920-A1 36 25.b.i EA Impacts – Surface WaterEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3920-A1 37 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-3920-A1 38 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3920-A1 39 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 40 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-3920-A1 41 25.b.ii EA Impacts – Ground Water

EPA-HQ-OW-2009-0819-3920-A1 42 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3920-A1 43 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 44 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 45 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-3920-A1 46 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-3920-A1 47 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 48 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-3920-A1 49 1.a.ii Overly Generalized/Out-of-Scope

EPA-HQ-OW-2009-0819-3920-A1 50 25.b.vi EA Impacts – Other Impacts/Exposure Pathway EPA-HQ-OW-2009-0819-3920-A1 51 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 52 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-3920-A1 53 1.a.ii Overly Generalized/Out-of-Scope

EPA-HQ-OW-2009-0819-3920-A1 54 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-3920-A1 55 6.e Regulatory Options – Ponds/Impoundments Used for Treatment EPA-HQ-OW-2009-0819-3920-A1 56 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 57 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3920-A1 58 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-3920-A1 59 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-3920-A1 60 25.b.i EA Impacts – Surface Water

EPA-HQ-OW-2009-0819-3920-A1 61 25.b.vi EA Impacts – Other Impacts/Exposure Pathway EPA-HQ-OW-2009-0819-3920-A1 62 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 63 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3920-A1 64 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-3920-A1 65 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3920-A1 66 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 67 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3920-A1 68 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 69 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-3920-A1 70 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-3920-A1 71 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 72 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3920-A1 73 25.b.iii EA Impacts – Sensitive Environments

EPA-HQ-OW-2009-0819-3920-A1 74 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3920-A1 75 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 76 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3920-A1 77 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 78 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3920-A1 79 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 80 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A1 81 25.b.vii EA Impacts – Chesapeake Bay EPA-HQ-OW-2009-0819-3920-A1 82 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3920-A1 83 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 84 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A1 85 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-3920-A1 86 2 Legal Authority EPA-HQ-OW-2009-0819-3920-A1 87 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 88 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-3920-A1 89 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 90 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3920-A1 91 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-3920-A1 92 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-3920-A1 93 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 94 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3920-A1 95 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 96 29.e Benefits – E&T species benefits EPA-HQ-OW-2009-0819-3920-A1 97 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-3920-A1 98 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3920-A1 99 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 100 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA

EPA-HQ-OW-2009-0819-3920-A1 101 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-3920-A1 102 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-3920-A1 103 28.l Econ – Other comments EPA-HQ-OW-2009-0819-3920-A1 104 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-3920-A1 106 6.h Cost Effectiveness

EPA-HQ-OW-2009-0819-3920-A1 107 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-3920-A1 108 5 Scope and Applicability EPA-HQ-OW-2009-0819-3920-A1 109 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3920-A1 110 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-3920-A1 111 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 112 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3920-A1 113 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 114 27.d Coordination – OW/316b EPA-HQ-OW-2009-0819-3920-A1 115 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3920-A1 116 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A1 117 2 Legal Authority EPA-HQ-OW-2009-0819-3920-A1 118 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-3920-A1 119 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 120 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-3920-A1 121 1.a.ii Overly Generalized/Out-of-Scope

EPA-HQ-OW-2009-0819-3920-A1 122 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-3920-A1 123 25.b.v EA Impacts – Human Health

EPA-HQ-OW-2009-0819-3920-A1 124 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-3920-A1 125 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-3920-A1 126 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 127 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-3920-A1 128 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 129 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 130 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-3920-A1 131 1.a.i General Support

EPA-HQ-OW-2009-0819-3920-A1 132 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3920-A1 133 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 134 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-3920-A1 135 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 136 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-3920-A1 137 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 138 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-3920-A1 139 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 140 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3920-A1 141 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A1 142 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-3920-A1 143 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 144 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-3920-A1 146 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-3920-A1 147 6.i.vii Support/oppose Options 3/4a EPA-HQ-OW-2009-0819-3920-A1 148 1 GeneralEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-3920-A1 149 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA

EPA-HQ-OW-2009-0819-3920-A1 151 5.b Scope and Applicability – Subcategorization EPA-HQ-OW-2009-0819-3920-A1 152 6 Regulatory Options EPA-HQ-OW-2009-0819-3920-A1 153 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-3920-A1 154 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A1 155 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-3920-A1 157 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-3920-A1 158 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-3920-A1 159 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-3920-A1 160 28.l Econ – Other comments EPA-HQ-OW-2009-0819-3920-A1 161 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-3920-A1 162 6.b Regulatory Options – EPA Pass-Through Analysis EPA-HQ-OW-2009-0819-3920-A1 163 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 164 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3920-A1 165 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 166 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 167 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A1 168 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A1 169 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 170 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 171 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 172 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 173 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 174 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 175 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 176 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 177 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 178 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A1 179 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 180 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 181 1.a.ii Overly Generalized/Out-of-Scope

EPA-HQ-OW-2009-0819-3920-A1 182 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3920-A1 183 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 184 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 185 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 186 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 187 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 188 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 189 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3920-A1 190 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 191 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 192 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 193 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 194 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 195 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 196 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A1 198 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-3920-A1 200 28.l Econ – Other comments EPA-HQ-OW-2009-0819-3920-A1 201 29.h Benefits – Air-related benefits EPA-HQ-OW-2009-0819-3920-A10 1 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A10 2 28.h Econ – Environmental justice

EPA-HQ-OW-2009-0819-3920-A10 3 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3920-A12 1 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A16 1 27.d Coordination – OW/316b EPA-HQ-OW-2009-0819-3920-A16 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3920-A16 3 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A16 4 3 Data EPA-HQ-OW-2009-0819-3920-A16 5 29.e Benefits – E&T species benefits EPA-HQ-OW-2009-0819-3920-A16 6 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-3920-A16 7 29.e Benefits – E&T species benefits

EPA-HQ-OW-2009-0819-3920-A21 1 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-3920-A22 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A25 1 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-3920-A25 2 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-3920-A27 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A27 2 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-3920-A30 1 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-3920-A30 2 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A38 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-3920-A7 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3920-A7 2 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A7 3 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-3920-A7 4 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A7 5 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-3920-A7 6 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-3920-A7 7 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-3920-A7 8 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A8 1 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A9 1 1.a.i General Support EPA-HQ-OW-2009-0819-3920-A9 2 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-3920-A9 3 26.f Regulatory Implementation – OtherEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3920-A9 4 1.a.i General Support EPA-HQ-OW-2009-0819-3921-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3922-A1 1 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-3922-A1 2 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-3922-A1 3 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-3922-A1 4 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-3922-A1 5 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-3922-A1 6 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-3922-A1 7 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-3922-A1 8 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-3922-A1 9 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-3922-A1 10 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-3922-A1 11 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-3924-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3924-A1 2 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3925-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3926-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3927-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3928-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3929-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3930-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3931-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3932-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3933-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3934-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3935-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3936-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3937-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3938-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3939-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3940-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3941-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3942-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3943-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3944-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3945-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3946-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3947-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3948-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3949-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3950-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3951-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3954-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3955-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-3956-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3957-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3958-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3959-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3960-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3960-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-3961-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3962-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3963-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3964-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3965-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3966-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3967-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3968-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3969-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3970-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3971-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3972-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3973-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3974-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3975-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3976-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3977-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3978-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3979-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3980-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3981-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3982-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3983-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3984-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3985-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3986-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3988-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3989-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3990-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3991-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3992-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3993-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3994-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3995-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3996-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-3997-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-3998-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-3999-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4000-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4001-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4002-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4003-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4004-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4005-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4007-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4008-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4009-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4010-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4011-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4012-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4013-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4014-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4015-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4016 1 1.a.i General Support EPA-HQ-OW-2009-0819-4017-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4019-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4020-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4021-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4023-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4024-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4025-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4026-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4027-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4030-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4031-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4032-A1 1 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4033-A2 1 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs

EPA-HQ-OW-2009-0819-4033-A2 2 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs

EPA-HQ-OW-2009-0819-4033-A2 3 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4034-A2 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4034-A2 2 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4034-A2 3 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4034-A2 4 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4034-A2 5 13 Fly Ash Transport WaterEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4034-A2 6 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4034-A2 7 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4034-A2 8 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4034-A2 9 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4034-A2 10 28.l Econ – Other comments

EPA-HQ-OW-2009-0819-4034-A2 11 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4034-A2 12 1.a.i General Support EPA-HQ-OW-2009-0819-4034-A2 13 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4034-A2 14 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4035-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4036-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4037-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4038-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4040-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4041-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4042 1 1.a.i General Support EPA-HQ-OW-2009-0819-4043-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4044-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4045-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4046-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4047-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4048-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4049-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4050-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4051-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4052-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4053-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4054-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4055-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4056-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4057-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4058-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4059-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4060-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4061-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4062-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4063-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4064-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4065-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4066-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4067-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4068-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4069-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4070-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4071-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4072-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4073-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4074-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4075-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4076-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4077-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4078-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4079-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4080-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4081-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4082-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4083-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4084-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4085-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4086-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4087-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4088-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4089-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4091-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4092-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4093-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4094-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4095-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4096-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4097-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4097-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4098-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4099-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4100-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4101-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4102-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4103-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4104-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4105-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4106-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4107-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4108-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4109-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4110-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4111-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4112-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4113-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4114-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4115-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4117-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4118-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4119-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4120-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4121-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4122-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4124-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4125-A1 1 6 Regulatory Options EPA-HQ-OW-2009-0819-4126-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4127-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4128-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4129-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4131-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4132-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4133-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4134-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4135-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4137-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4138-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4139-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4141-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4142-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4143-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4146-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4147-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4149-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4150-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4151-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4152-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4153-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4154-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4155-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4156-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4157-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4158-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4159-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4160-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4162-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4163-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4165-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4166-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4167-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4168-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4169-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4171-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4172-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4173-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4174-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4175-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4177-A5 1 16.e Zero Discharge Bottom Ash – Other Technology Options EPA-HQ-OW-2009-0819-4178-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4178-A1 2 2 Legal Authority EPA-HQ-OW-2009-0819-4178-A1 3 2 Legal Authority EPA-HQ-OW-2009-0819-4178-A1 4 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4178-A1 5 2 Legal Authority EPA-HQ-OW-2009-0819-4178-A1 6 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4178-A1 7 2 Legal Authority EPA-HQ-OW-2009-0819-4178-A1 8 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4178-A1 9 2 Legal Authority EPA-HQ-OW-2009-0819-4178-A1 10 2 Legal Authority EPA-HQ-OW-2009-0819-4178-A1 11 2 Legal Authority EPA-HQ-OW-2009-0819-4179-A1 1 6.i.i Support/oppose Zero Discharge EPA-HQ-OW-2009-0819-4180-A2 1 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4180-A2 2 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4180-A2 3 3 Data EPA-HQ-OW-2009-0819-4181-A2 1 1.a.i General Support EPA-HQ-OW-2009-0819-4181-A2 2 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4181-A2 3 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4181-A2 4 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4181-A2 5 1.a.i General Support

EPA-HQ-OW-2009-0819-4181-A2 6 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4181-A2 7 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4181-A2 8 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4181-A2 9 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4181-A2 10 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4181-A2 11 2 Legal Authority EPA-HQ-OW-2009-0819-4181-A2 12 4 Data Collection EPA-HQ-OW-2009-0819-4182-A2 1 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4182-A2 2 8 FGD Wastewater EPA-HQ-OW-2009-0819-4182-A2 3 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4182-A2 4 14.b Dry Fly Ash Handling – Costs EPA-HQ-OW-2009-0819-4182-A2 5 16 Zero Discharge Bottom AshEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

10-225

DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4182-A2 6 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4182-A2 7 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4182-A2 8 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4182-A2 9 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4183-A2 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-4183-A2 3 8 FGD Wastewater EPA-HQ-OW-2009-0819-4183-A2 4 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4183-A2 5 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4183-A2 7 14.b Dry Fly Ash Handling – Costs

EPA-HQ-OW-2009-0819-4183-A2 8 14.a Dry Fly Ash Handling – Demonstration/Performance EPA-HQ-OW-2009-0819-4183-A2 9 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4183-A2 10 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4183-A2 11 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4183-A2 12 16.a Zero Discharge Bottom Ash – Demonstration/Performance

EPA-HQ-OW-2009-0819-4183-A2 13 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-4183-A2 14 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4183-A2 15 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4183-A2 16 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4183-A2 17 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4183-A2 18 2 Legal Authority EPA-HQ-OW-2009-0819-4183-A2 19 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4183-A2 20 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4183-A2 21 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4183-A2 22 28.j Econ – EOs 12866 and 13563

EPA-HQ-OW-2009-0819-4183-A2 23 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4184-A1 1 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4184-A1 2 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4184-A1 3 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4187-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4188-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4189-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4190-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4190-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4191-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4192-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4193-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4194 1 1.a.i General Support EPA-HQ-OW-2009-0819-4197-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4198-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4199-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4200-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4201-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4202-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4203-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4204-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4205-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4206-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4207-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4208-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4209-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4210-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4213-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4214-A1 1 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4214-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4215-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4216-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4217-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4218-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4219-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4220-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4221-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4222-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4223-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4224-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4225-A1 1 1.a.ii Overly Generalized/Out-of-Scope

EPA-HQ-OW-2009-0819-4226-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4227-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4228-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4229-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4230-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4231-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4232-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4233-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4234-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4235-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4236-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4237-A1 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-4238-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4239-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4240-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

10-227

DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4241-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4242-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4243-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4244-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4245-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4246-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4247-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4249-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4250-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4251-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4253-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4254-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4255-A1 1 25.b.vii EA Impacts – Chesapeake Bay EPA-HQ-OW-2009-0819-4256-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4257-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4258-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4259-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4260-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4261-A2 1 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4261-A2 2 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4262-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4263-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4264-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4265-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4266-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4267-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4268-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4269-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4271-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4272-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4274-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4275-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4276-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4277-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4278-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4279-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4280-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4281-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4282-A2 1 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4282-A2 2 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4283-A1 2 26.e Regulatory Implementation – Net Credits EPA-HQ-OW-2009-0819-4283-A1 4 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4283-A1 5 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4283-A1 6 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4283-A1 7 6.g.iv Transport waterEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4283-A1 8 8 FGD Wastewater EPA-HQ-OW-2009-0819-4283-A1 9 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4283-A1 10 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4283-A1 11 8 FGD Wastewater EPA-HQ-OW-2009-0819-4283-A1 12 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4283-A1 13 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4283-A1 14 6.i.i Support/oppose Zero Discharge EPA-HQ-OW-2009-0819-4283-A1 15 26.e Regulatory Implementation – Net Credits

EPA-HQ-OW-2009-0819-4283-A1 16 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4283-A1 17 31 Numeric Limits EPA-HQ-OW-2009-0819-4283-A1 18 32 Analytical Methods EPA-HQ-OW-2009-0819-4284-A1 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4284-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4286-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4287-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4288-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4289-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4291-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4292-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4293-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4294-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4295-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4296-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4297-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4299-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4300-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4302 1 25.b.ii EA Impacts – Ground Water

EPA-HQ-OW-2009-0819-4303-A2 1 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4303-A2 2 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4303-A2 3 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4303-A2 4 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4303-A2 5 16.e Zero Discharge Bottom Ash – Other Technology Options EPA-HQ-OW-2009-0819-4303-A2 6 6.i.v Support/oppose Option 3a/3b EPA-HQ-OW-2009-0819-4303-A2 7 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4303-A2 8 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4303-A2 9 6.g.v Dry bottom ash handling system EPA-HQ-OW-2009-0819-4303-A2 10 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4303-A2 11 22.b NMCW – ProfileEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4303-A2 12 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4303-A2 13 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4303-A2 14 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4305-A2 1 8 FGD Wastewater EPA-HQ-OW-2009-0819-4305-A2 2 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4305-A2 3 13.a FA Transport Water – General/Scope EPA-HQ-OW-2009-0819-4305-A2 4 21.a FGMC – General/Scope EPA-HQ-OW-2009-0819-4305-A2 5 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4305-A2 6 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4305-A2 7 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4305-A2 8 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4305-A3 1 6.i.iv Support/oppose Options 4/5

EPA-HQ-OW-2009-0819-4305-A3 2 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4305-A3 3 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4305-A3 4 8 FGD Wastewater EPA-HQ-OW-2009-0819-4305-A3 5 10 FGD Biological Treatment

EPA-HQ-OW-2009-0819-4305-A3 6 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4305-A3 7 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4305-A3 8 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4305-A3 9 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4305-A3 10 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-4305-A3 11 21.a FGMC – General/Scope EPA-HQ-OW-2009-0819-4305-A3 12 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4305-A3 13 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4305-A3 14 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4305-A3 15 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4305-A3 16 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4305-A3 17 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4305-A3 18 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4305-A3 19 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4305-A3 20 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4305-A3 21 28.l Econ – Other comments

EPA-HQ-OW-2009-0819-4305-A3 22 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4305-A3 23 17 Combined Ash Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4305-A3 24 8 FGD Wastewater EPA-HQ-OW-2009-0819-4305-A3 25 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4305-A3 26 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4305-A3 27 21.a FGMC – General/ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4305-A3 28 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4305-A3 29 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4305-A3 30 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4305-A3 31 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4305-A3 32 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4305-A3 33 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 34 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 35 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4305-A3 36 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 37 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4305-A3 38 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 39 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 40 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 41 8 FGD Wastewater EPA-HQ-OW-2009-0819-4305-A3 42 8 FGD Wastewater EPA-HQ-OW-2009-0819-4305-A3 43 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 44 8 FGD Wastewater EPA-HQ-OW-2009-0819-4305-A3 45 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 46 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4305-A3 47 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4305-A3 48 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4305-A3 49 9.c FGD CP – Pollutant Loadings EPA-HQ-OW-2009-0819-4305-A3 50 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4305-A3 51 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4305-A3 52 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4305-A3 53 9.c FGD CP – Pollutant Loadings EPA-HQ-OW-2009-0819-4305-A3 54 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4305-A3 55 8 FGD Wastewater EPA-HQ-OW-2009-0819-4305-A3 56 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 57 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 58 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 59 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 60 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4305-A3 61 6.c Regulatory Options – Technology Versus Water Quality Based Limitations EPA-HQ-OW-2009-0819-4305-A3 62 8 FGD Wastewater EPA-HQ-OW-2009-0819-4305-A3 63 7 Industry Operations EPA-HQ-OW-2009-0819-4305-A3 64 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4305-A3 65 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4305-A3 66 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4305-A3 67 32 Analytical Methods EPA-HQ-OW-2009-0819-4305-A3 68 15 Bottom Ash Transport WaterEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

10-231

DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4305-A3 69 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4305-A3 70 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 71 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4305-A3 72 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4305-A3 73 17 Combined Ash Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4305-A3 74 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4305-A3 75 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4305-A3 76 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4305-A3 77 7 Industry Operations

EPA-HQ-OW-2009-0819-4305-A3 78 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4305-A3 79 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4305-A3 80 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4305-A3 81 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4305-A3 82 14.c Dry Fly Ash Handling – Pollutant Loads EPA-HQ-OW-2009-0819-4305-A3 83 14.b Dry Fly Ash Handling – Costs

EPA-HQ-OW-2009-0819-4305-A3 84 13.d FA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4305-A3 85 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4305-A3 86 14.b Dry Fly Ash Handling – Costs EPA-HQ-OW-2009-0819-4305-A3 87 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4305-A3 88 21.a FGMC – General/Scope EPA-HQ-OW-2009-0819-4305-A3 89 21.a FGMC – General/Scope EPA-HQ-OW-2009-0819-4305-A3 90 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4305-A3 91 23.c Gasification – Wastewater Characterization EPA-HQ-OW-2009-0819-4305-A3 92 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4305-A3 93 23.b Gasification – Profile

EPA-HQ-OW-2009-0819-4305-A3 94 31.d Stats NL – Selection of Data Within Facilities for Gasification Wastewater

EPA-HQ-OW-2009-0819-4305-A3 95 31.d Stats NL – Selection of Data Within Facilities for Gasification Wastewater EPA-HQ-OW-2009-0819-4305-A3 96 23.a Gasification – General/Scope

EPA-HQ-OW-2009-0819-4305-A3 97 31.h Stats NL – Statistical Method used to Calculate the Limits EPA-HQ-OW-2009-0819-4305-A3 98 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4305-A3 99 6.g.vi Gasification wastewater EPA-HQ-OW-2009-0819-4305-A3 100 23.c Gasification – Wastewater Characterization EPA-HQ-OW-2009-0819-4305-A3 101 18.a Leachate – General/ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4305-A3 102 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4305-A3 103 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4305-A3 104 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4305-A3 105 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4305-A3 106 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4305-A3 107 19.a Leachate CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4305-A3 108 6.g.vii New source EPA-HQ-OW-2009-0819-4305-A3 109 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4305-A3 110 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4305-A3 111 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4305-A3 112 22.b NMCW – Profile

EPA-HQ-OW-2009-0819-4305-A3 113 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4305-A3 114 22.c NMCW – Wastewater Characterization EPA-HQ-OW-2009-0819-4305-A3 115 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4305-A3 116 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4305-A3 117 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4305-A3 118 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4305-A3 119 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4305-A3 120 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4305-A3 121 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4305-A3 122 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4305-A3 123 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4305-A3 124 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4305-A3 125 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4305-A3 126 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4305-A3 127 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4305-A3 128 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4305-A3 129 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-4305-A3 130 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4305-A3 131 8 FGD Wastewater EPA-HQ-OW-2009-0819-4305-A3 132 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4305-A3 133 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4305-A3 134 21.a FGMC – General/Scope EPA-HQ-OW-2009-0819-4305-A3 135 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4305-A3 136 18.a Leachate – General/ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4305-A3 137 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4305-A3 138 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4305-A3 139 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4305-A3 140 3 Data EPA-HQ-OW-2009-0819-4305-A3 141 3 Data EPA-HQ-OW-2009-0819-4305-A3 142 3 Data EPA-HQ-OW-2009-0819-4305-A3 145 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4305-A3 146 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4305-A3 147 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4306-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4307-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4308 1 1.a.i General Support EPA-HQ-OW-2009-0819-4309-A1 1 28.j Econ – EOs 12866 and 13563 EPA-HQ-OW-2009-0819-4309-A1 2 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4309-A1 3 4.d Data Collection – Other Data Sources

EPA-HQ-OW-2009-0819-4309-A1 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4309-A1 5 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4309-A1 6 18.a Leachate – General/Scope

EPA-HQ-OW-2009-0819-4309-A1 7 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4309-A1 8 6 Regulatory Options EPA-HQ-OW-2009-0819-4309-A1 9 8 FGD Wastewater EPA-HQ-OW-2009-0819-4309-A1 10 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4309-A1 11 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4309-A1 12 2 Legal Authority EPA-HQ-OW-2009-0819-4309-A1 13 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4309-A1 14 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4309-A1 15 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4309-A1 16 28.f Econ – Electricity rate and household impacts EPA-HQ-OW-2009-0819-4310-A1 1 6.i.ii Support Option 1 EPA-HQ-OW-2009-0819-4310-A1 2 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4310-A1 3 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4310-A1 4 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4310-A1 5 2 Legal Authority

EPA-HQ-OW-2009-0819-4310-A1 6 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4310-A1 7 8 FGD Wastewater EPA-HQ-OW-2009-0819-4310-A1 8 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4310-A1 9 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4310-A1 10 15 Bottom Ash Transport WaterEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4310-A1 11 6.g.ii Nonchemical metal cleaning wastes (NCMCW)

EPA-HQ-OW-2009-0819-4310-A1 12 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4310-A1 13 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4310-A1 14 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4310-A1 15 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4310-A1 16 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4310-A1 17 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4311 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4312 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4313 1 25.b.ii EA Impacts – Ground Water

EPA-HQ-OW-2009-0819-4314 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4315 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4316 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4316 2 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4316 3 1.a.i General Support

EPA-HQ-OW-2009-0819-4317-A1 1 28.f Econ – Electricity rate and household impacts

EPA-HQ-OW-2009-0819-4317-A1 3 28.f Econ – Electricity rate and household impacts

EPA-HQ-OW-2009-0819-4317-A1 4 5.b Scope and Applicability – Subcategorization EPA-HQ-OW-2009-0819-4317-A1 5 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4317-A1 6 6 Regulatory Options EPA-HQ-OW-2009-0819-4317-A1 7 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4317-A1 9 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4317-A1 10 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4317-A1 11 7 Industry Operations

EPA-HQ-OW-2009-0819-4317-A1 12 14.a Dry Fly Ash Handling – Demonstration/Performance

EPA-HQ-OW-2009-0819-4317-A1 13 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4317-A1 14 7 Industry Operations EPA-HQ-OW-2009-0819-4317-A1 15 7 Industry Operations EPA-HQ-OW-2009-0819-4317-A1 16 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4317-A1 17 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4317-A1 18 6.g.vii New source EPA-HQ-OW-2009-0819-4317-A1 19 21.a FGMC – General/Scope EPA-HQ-OW-2009-0819-4317-A1 20 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4317-A1 21 6 Regulatory OptionsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4317-A1 22 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4317-A1 23 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4317-A1 24 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4317-A1 25 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4317-A1 26 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4317-A1 27 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4317-A1 28 5.c Scope and Applicability – Threshold

EPA-HQ-OW-2009-0819-4317-A1 29 14.a Dry Fly Ash Handling – Demonstration/Performance

EPA-HQ-OW-2009-0819-4317-A1 30 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA EPA-HQ-OW-2009-0819-4318 1 1.a.i General Support EPA-HQ-OW-2009-0819-4319 1 1.a.i General Support EPA-HQ-OW-2009-0819-4319 2 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4320 1 1.a.i General Support EPA-HQ-OW-2009-0819-4320 2 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4321-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4322-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4323-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4324-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4325-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4326-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4327-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4328-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4329-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4331-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4332-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4333-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4334-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4335-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4336-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4338-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4341-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4341-A1 2 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4342-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4343-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4345-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4346 1 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4346 2 1.a.i General Support EPA-HQ-OW-2009-0819-4347 1 25.b.iv EA Impacts – WildlifeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4347 2 1.a.i General Support EPA-HQ-OW-2009-0819-4348-A2 1 28.j Econ – EOs 12866 and 13563

EPA-HQ-OW-2009-0819-4348-A2 2 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4348-A2 3 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4348-A2 4 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4348-A2 5 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs

EPA-HQ-OW-2009-0819-4348-A2 6 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4348-A2 7 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4348-A2 8 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4348-A2 9 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4348-A2 10 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4348-A2 11 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4348-A2 12 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4348-A2 13 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4348-A2 14 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4348-A2 15 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4348-A2 16 6.i.vi Support Option 3

EPA-HQ-OW-2009-0819-4348-A2 17 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4348-A2 18 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4348-A2 19 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-4349-A2 1 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4349-A2 2 8 FGD Wastewater EPA-HQ-OW-2009-0819-4349-A2 3 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4349-A2 4 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4349-A2 5 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4349-A2 6 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4349-A2 7 6.i.v Support/oppose Option 3a/3b

EPA-HQ-OW-2009-0819-4349-A2 8 22 Nonchemical Metal Cleaning Wastes (NMCW)

EPA-HQ-OW-2009-0819-4349-A2 9 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4349-A2 10 2 Legal Authority

EPA-HQ-OW-2009-0819-4349-A2 11 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4349-A2 13 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4349-A2 14 6 Regulatory OptionsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4349-A2 15 1.a.i General Support

EPA-HQ-OW-2009-0819-4349-A2 16 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4350-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4351-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4352-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4353-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4354-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4355-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4356-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4357-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4358-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4359-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4360-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4361-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4362-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4363-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4364-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4365-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4366-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4367-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4368-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4369-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4370-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4371-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4372-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4373-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4374-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4375-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4376-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4377-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4378-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4379-A1 1 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4379-A1 2 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4379-A1 3 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4379-A1 4 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4379-A1 5 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4379-A1 7 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4379-A1 8 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4379-A1 9 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4379-A1 10 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4379-A1 11 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4379-A1 12 14 Dry Fly Ash HandlingEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4379-A1 13 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4379-A1 14 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4379-A1 15 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4379-A1 16 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4379-A1 17 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-4379-A1 18 8 FGD Wastewater EPA-HQ-OW-2009-0819-4379-A1 19 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4379-A1 20 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4379-A1 21 8 FGD Wastewater EPA-HQ-OW-2009-0819-4379-A1 22 6.h Cost Effectiveness

EPA-HQ-OW-2009-0819-4379-A1 23 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4379-A1 24 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4379-A1 25 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4379-A1 26 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4379-A1 27 17 Combined Ash Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4379-A1 28 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4379-A1 29 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4379-A1 30 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4379-A1 31 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4379-A1 32 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4379-A1 33 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4379-A1 34 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4379-A1 35 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4379-A1 36 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4379-A1 37 16.c Zero Discharge Bottom Ash – Pollutant Loads EPA-HQ-OW-2009-0819-4379-A1 38 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4379-A1 39 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4379-A1 40 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4379-A1 41 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4379-A1 42 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4379-A1 43 14 Dry Fly Ash Handling

EPA-HQ-OW-2009-0819-4379-A1 44 13.d FA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4379-A1 45 14.b Dry Fly Ash Handling – CostsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4379-A1 46 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-4379-A1 47 14.b Dry Fly Ash Handling – Costs

EPA-HQ-OW-2009-0819-4379-A1 48 13.d FA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4379-A1 49 14 Dry Fly Ash Handling

EPA-HQ-OW-2009-0819-4379-A1 50 14.a Dry Fly Ash Handling – Demonstration/Performance EPA-HQ-OW-2009-0819-4379-A1 51 14 Dry Fly Ash Handling

EPA-HQ-OW-2009-0819-4379-A1 52 14.e Dry Fly Ash Handling – Other Technology Options EPA-HQ-OW-2009-0819-4379-A1 53 8 FGD Wastewater EPA-HQ-OW-2009-0819-4379-A1 54 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4379-A1 55 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4379-A1 56 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4379-A1 57 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4379-A1 58 2 Legal Authority EPA-HQ-OW-2009-0819-4379-A1 59 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4379-A1 60 9.c FGD CP – Pollutant Loadings EPA-HQ-OW-2009-0819-4379-A1 61 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4379-A1 62 11.c FGD VCE – Pollutant Loadings EPA-HQ-OW-2009-0819-4379-A1 63 8 FGD Wastewater EPA-HQ-OW-2009-0819-4379-A1 64 8 FGD Wastewater EPA-HQ-OW-2009-0819-4379-A1 65 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4379-A1 66 32 Analytical Methods EPA-HQ-OW-2009-0819-4379-A1 67 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4379-A1 68 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4379-A1 69 32 Analytical Methods EPA-HQ-OW-2009-0819-4379-A1 70 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4379-A1 71 8 FGD Wastewater EPA-HQ-OW-2009-0819-4379-A1 72 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4379-A1 73 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4379-A1 74 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4379-A1 75 11.d FGD VCE – NWQI EPA-HQ-OW-2009-0819-4379-A1 76 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4379-A1 77 11.d FGD VCE – NWQI EPA-HQ-OW-2009-0819-4379-A1 78 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4379-A1 79 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4379-A1 80 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4379-A1 81 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4379-A1 82 11.a FGD VCE – Demonstration/Performance

EPA-HQ-OW-2009-0819-4379-A1 83 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4379-A1 84 31.k Stats NL – Engineering Review of Limitations for FGD WastewaterEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4379-A1 85 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4379-A1 86 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4379-A1 87 10 FGD Biological Treatment

EPA-HQ-OW-2009-0819-4379-A1 88 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4379-A1 89 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4379-A1 90 8 FGD Wastewater EPA-HQ-OW-2009-0819-4379-A1 91 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4379-A1 92 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4379-A1 93 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4379-A1 94 8 FGD Wastewater EPA-HQ-OW-2009-0819-4379-A1 95 32 Analytical Methods EPA-HQ-OW-2009-0819-4379-A1 96 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4379-A1 97 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4379-A1 98 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4379-A1 99 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4379-A1 100 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4379-A1 101 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4379-A1 102 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4379-A1 103 2 Legal Authority

EPA-HQ-OW-2009-0819-4379-A1 104 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4379-A1 105 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4379-A1 106 22.c NMCW – Wastewater Characterization EPA-HQ-OW-2009-0819-4379-A1 107 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4379-A1 108 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4379-A1 109 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4379-A1 110 22.d NMCW – Treatment Technologies

EPA-HQ-OW-2009-0819-4379-A1 111 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4379-A1 112 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4379-A1 113 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4379-A1 114 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4379-A1 115 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4379-A1 116 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4379-A1 117 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4379-A1 118 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4379-A1 119 27.e Coordination – ORCR/CCREffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

10-241

DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4379-A1 120 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4379-A1 121 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4379-A1 122 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4379-A1 123 2 Legal Authority EPA-HQ-OW-2009-0819-4379-A1 124 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4379-A1 125 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4379-A1 126 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4379-A1 127 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4379-A1 128 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4379-A1 129 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4379-A1 130 14.b Dry Fly Ash Handling – Costs EPA-HQ-OW-2009-0819-4379-A1 131 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4379-A1 132 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4379-A1 133 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4379-A1 134 17 Combined Ash Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4379-A1 135 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4379-A1 136 2 Legal Authority

EPA-HQ-OW-2009-0819-4379-A1 137 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4379-A1 138 6.b Regulatory Options – EPA Pass-Through Analysis

EPA-HQ-OW-2009-0819-4379-A1 139 6.b Regulatory Options – EPA Pass-Through Analysis

EPA-HQ-OW-2009-0819-4379-A1 140 6.b Regulatory Options – EPA Pass-Through Analysis EPA-HQ-OW-2009-0819-4379-A1 141 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4379-A1 142 6.g.vii New source

EPA-HQ-OW-2009-0819-4379-A1 143 6.b Regulatory Options – EPA Pass-Through Analysis

EPA-HQ-OW-2009-0819-4379-A1 144 6.b Regulatory Options – EPA Pass-Through Analysis EPA-HQ-OW-2009-0819-4379-A1 145 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4379-A1 146 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4379-A1 147 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4379-A1 148 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4379-A1 149 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4379-A1 150 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4379-A1 151 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4379-A1 152 6.i.i Support/oppose Zero Discharge EPA-HQ-OW-2009-0819-4379-A1 153 22.a NMCW – General/ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4379-A1 154 1 General

EPA-HQ-OW-2009-0819-4379-A1 155 16.e Zero Discharge Bottom Ash – Other Technology Options EPA-HQ-OW-2009-0819-4379-A1 156 3 Data

EPA-HQ-OW-2009-0819-4379-A1 157 14.e Dry Fly Ash Handling – Other Technology Options EPA-HQ-OW-2009-0819-4379-A1 158 3 Data EPA-HQ-OW-2009-0819-4379-A1 159 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4379-A1 160 9.b FGD CP – Costs EPA-HQ-OW-2009-0819-4379-A1 162 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4379-A1 163 14.b Dry Fly Ash Handling – Costs EPA-HQ-OW-2009-0819-4379-A1 164 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4379-A1 165 19.b Leachate CP – Costs EPA-HQ-OW-2009-0819-4379-A1 166 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4379-A1 168 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4379-A1 169 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4379-A1 170 31 Numeric Limits

EPA-HQ-OW-2009-0819-4379-A1 171 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4379-A1 172 31 Numeric Limits EPA-HQ-OW-2009-0819-4380-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4380-A1 2 6.i.i Support/oppose Zero Discharge EPA-HQ-OW-2009-0819-4380-A1 3 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4380-A1 4 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4380-A1 5 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-4380-A1 6 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4380-A1 7 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4381-A1 1 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4382-A1 1 6.i.i Support/oppose Zero Discharge EPA-HQ-OW-2009-0819-4382-A1 2 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4382-A1 3 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4382-A1 4 6.i.i Support/oppose Zero Discharge EPA-HQ-OW-2009-0819-4382-A1 5 14 Dry Fly Ash Handling

EPA-HQ-OW-2009-0819-4382-A1 6 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4383-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4383-A1 2 6.i.vii Support/oppose Options 3/4a EPA-HQ-OW-2009-0819-4383-A1 3 13 Fly Ash Transport Water

EPA-HQ-OW-2009-0819-4383-A1 4 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4383-A1 5 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-4383-A1 6 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4383-A1 7 10.a FGD Bio – Demonstration/PerformanceEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4383-A1 8 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4383-A1 9 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4383-A1 10 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4383-A1 11 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4383-A1 12 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4383-A1 13 27.d Coordination – OW/316b EPA-HQ-OW-2009-0819-4383-A1 14 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4383-A1 15 27 Coordination with Other EPA Rules

EPA-HQ-OW-2009-0819-4383-A1 16 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4383-A1 17 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4383-A1 18 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4383-A1 19 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4383-A1 20 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4383-A1 21 6.g.viii Pretreatment 10-yr/24 hr storm

EPA-HQ-OW-2009-0819-4383-A1 22 5.b Scope and Applicability – Subcategorization EPA-HQ-OW-2009-0819-4384-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4387-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4388-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4390-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4391-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4392-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4392-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4393-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4394-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4395-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4396-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4397-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4398-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4399-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4400-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4401-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4402-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4404-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4405-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4406-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4407-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4409-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4410-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4411-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4412-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4413-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4414-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4415-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4416-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4417-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4418-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4419-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4420-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4421-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4422-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4423-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4424-A1 1 25.b.vii EA Impacts – Chesapeake Bay

EPA-HQ-OW-2009-0819-4424-A1 2 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4425-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4426-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4427-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4428-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4429-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4431-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4432-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4433-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4434-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4435-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4436-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4437-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4438-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4439-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4440-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4441-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4442-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4443-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4444-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4445-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4446-A1 1 28.f Econ – Electricity rate and household impacts EPA-HQ-OW-2009-0819-4446-A1 2 6 Regulatory Options EPA-HQ-OW-2009-0819-4446-A1 3 2 Legal Authority EPA-HQ-OW-2009-0819-4446-A1 4 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4446-A1 5 6.g.ix Bottom ash and boiler slag EPA-HQ-OW-2009-0819-4446-A1 6 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4446-A1 7 6.g.vii New source EPA-HQ-OW-2009-0819-4447-A1 1 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-4447-A1 2 6.h Cost EffectivenessEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4447-A1 3 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4447-A1 4 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4447-A1 5 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4447-A1 6 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4447-A1 7 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4447-A1 8 2 Legal Authority

EPA-HQ-OW-2009-0819-4447-A1 9 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4447-A1 10 25.c EA – Loadings Analyses EPA-HQ-OW-2009-0819-4447-A1 11 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4447-A1 12 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4447-A1 13 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4447-A1 14 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4447-A1 15 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4447-A1 16 17 Combined Ash Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4447-A1 17 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4447-A1 18 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4447-A1 19 8 FGD Wastewater EPA-HQ-OW-2009-0819-4447-A1 20 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4447-A1 21 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4447-A1 22 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4447-A1 23 8 FGD Wastewater EPA-HQ-OW-2009-0819-4447-A1 24 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4447-A1 25 8 FGD Wastewater EPA-HQ-OW-2009-0819-4447-A1 26 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4447-A1 27 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4447-A1 28 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4447-A1 29 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4447-A1 30 22.d NMCW – Treatment Technologies

EPA-HQ-OW-2009-0819-4447-A1 31 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4447-A1 32 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4447-A1 33 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4447-A1 34 2 Legal Authority EPA-HQ-OW-2009-0819-4447-A1 35 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4447-A1 36 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4447-A1 37 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4447-A1 38 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4447-A1 39 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4447-A1 40 26.b Regulatory Implementation – TimingEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4447-A1 41 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4447-A1 42 2 Legal Authority EPA-HQ-OW-2009-0819-4447-A1 43 2 Legal Authority EPA-HQ-OW-2009-0819-4448-A1 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-4448-A1 2 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4448-A1 3 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4448-A1 4 2 Legal Authority EPA-HQ-OW-2009-0819-4448-A1 5 2 Legal Authority

EPA-HQ-OW-2009-0819-4448-A1 6 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4448-A1 7 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4448-A1 8 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4448-A1 9 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4448-A1 10 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4448-A1 11 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4448-A1 12 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4448-A1 13 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4448-A1 14 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4448-A1 15 8 FGD Wastewater EPA-HQ-OW-2009-0819-4448-A1 16 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4448-A1 17 8 FGD Wastewater EPA-HQ-OW-2009-0819-4448-A1 18 8 FGD Wastewater EPA-HQ-OW-2009-0819-4448-A1 19 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4448-A1 20 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4448-A1 21 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4448-A1 22 8 FGD Wastewater EPA-HQ-OW-2009-0819-4448-A1 23 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4448-A1 24 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4448-A1 25 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4448-A1 26 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4448-A1 27 14 Dry Fly Ash Handling

EPA-HQ-OW-2009-0819-4448-A1 29 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4448-A1 30 14.b Dry Fly Ash Handling – Costs EPA-HQ-OW-2009-0819-4448-A1 31 14 Dry Fly Ash Handling

EPA-HQ-OW-2009-0819-4448-A1 32 14.e Dry Fly Ash Handling – Other Technology Options EPA-HQ-OW-2009-0819-4448-A1 33 14.b Dry Fly Ash Handling – Costs EPA-HQ-OW-2009-0819-4448-A1 34 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4448-A1 35 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4448-A1 36 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4448-A1 37 16 Zero Discharge Bottom AshEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4448-A1 38 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4448-A1 39 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4448-A1 40 5.c Scope and Applicability – Threshold

EPA-HQ-OW-2009-0819-4448-A1 41 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4448-A1 42 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4448-A1 43 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4448-A1 44 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4448-A1 45 19 Leachate Chemical Precipitation EPA-HQ-OW-2009-0819-4448-A1 46 19.b Leachate CP – Costs

EPA-HQ-OW-2009-0819-4448-A1 47 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4448-A1 49 18.b Leachate – Profile EPA-HQ-OW-2009-0819-4448-A1 50 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4448-A1 51 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4448-A1 52 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4448-A1 53 22.b NMCW – Profile

EPA-HQ-OW-2009-0819-4448-A1 54 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4448-A1 55 22.b NMCW – Profile

EPA-HQ-OW-2009-0819-4448-A1 56 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4448-A1 57 2 Legal Authority EPA-HQ-OW-2009-0819-4448-A1 58 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4448-A1 59 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4448-A1 60 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4448-A1 61 26.c Regulatory Implementation – Legacy Waste

EPA-HQ-OW-2009-0819-4448-A1 62 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4448-A1 63 2 Legal Authority EPA-HQ-OW-2009-0819-4448-A1 64 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4448-A1 65 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4448-A1 66 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4448-A1 67 28.b Econ – Total costs and economic impact analyses assumptions EPA-HQ-OW-2009-0819-4448-A1 68 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4448-A1 69 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4448-A1 70 28.b Econ – Total costs and economic impact analyses assumptionsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4448-A1 71 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4448-A1 72 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4448-A1 73 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-4448-A1 74 25.b.iv EA Impacts – Wildlife

EPA-HQ-OW-2009-0819-4448-A1 75 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-4448-A1 76 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4448-A1 77 25.b.iv EA Impacts – Wildlife

EPA-HQ-OW-2009-0819-4448-A1 78 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-4448-A1 79 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-4448-A1 80 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-4448-A1 81 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4448-A1 83 28.j Econ – EOs 12866 and 13563

EPA-HQ-OW-2009-0819-4448-A1 84 28.f Econ – Electricity rate and household impacts EPA-HQ-OW-2009-0819-4448-A1 85 28.l Econ – Other comments EPA-HQ-OW-2009-0819-4449-A1 1 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4449-A1 2 8 FGD Wastewater EPA-HQ-OW-2009-0819-4449-A1 3 8.c FGD – Wastewater Characterization

EPA-HQ-OW-2009-0819-4449-A1 4 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4449-A1 5 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4450-A1 1 6 Regulatory Options EPA-HQ-OW-2009-0819-4450-A1 2 27 Coordination with Other EPA Rules

EPA-HQ-OW-2009-0819-4450-A1 3 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4450-A1 4 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4450-A1 5 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4450-A1 6 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4450-A1 7 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4450-A1 8 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4450-A1 9 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4450-A1 10 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4450-A1 11 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4450-A1 12 8 FGD Wastewater EPA-HQ-OW-2009-0819-4450-A1 13 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4450-A1 14 6 Regulatory OptionsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4450-A1 15 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4450-A1 16 26 Regulatory Implementation EPA-HQ-OW-2009-0819-4451-A1 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4451-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4451-A1 3 25.b.iii EA Impacts – Sensitive Environments

EPA-HQ-OW-2009-0819-4451-A1 4 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4451-A1 5 1.a.i General Support EPA-HQ-OW-2009-0819-4452-A2 2 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4452-A2 3 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-4452-A2 4 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-4452-A2 5 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-4452-A2 6 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-4452-A2 7 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4452-A2 8 25.b.i EA Impacts – Surface Water

EPA-HQ-OW-2009-0819-4452-A2 9 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4452-A2 10 6.e Regulatory Options – Ponds/Impoundments Used for Treatment

EPA-HQ-OW-2009-0819-4452-A2 11 6.e Regulatory Options – Ponds/Impoundments Used for Treatment EPA-HQ-OW-2009-0819-4452-A2 12 19.b Leachate CP – Costs EPA-HQ-OW-2009-0819-4452-A2 13 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4452-A2 14 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4452-A2 16 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4452-A2 17 6.g.xiv Low volume waste EPA-HQ-OW-2009-0819-4452-A2 18 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4452-A2 19 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4452-A2 20 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4452-A2 21 2 Legal Authority

EPA-HQ-OW-2009-0819-4452-A2 22 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4452-A2 23 6 Regulatory Options

EPA-HQ-OW-2009-0819-4452-A2 24 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4452-A2 25 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4452-A2 26 25.b EA – Environmental Impacts and Exposure PathwaysEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4452-A2 27 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4452-A3 1 3 Data EPA-HQ-OW-2009-0819-4453-A1 1 5 Scope and Applicability EPA-HQ-OW-2009-0819-4453-A1 2 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4453-A1 3 6.c Regulatory Options – Technology Versus Water Quality Based Limitations

EPA-HQ-OW-2009-0819-4453-A1 4 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4453-A1 5 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4453-A1 9 5 Scope and Applicability EPA-HQ-OW-2009-0819-4453-A1 10 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4453-A1 11 5 Scope and Applicability EPA-HQ-OW-2009-0819-4453-A1 12 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4453-A1 13 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4453-A1 14 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4453-A1 15 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4453-A1 16 5 Scope and Applicability EPA-HQ-OW-2009-0819-4453-A1 18 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4453-A1 19 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4453-A1 20 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4453-A1 21 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4453-A1 22 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4454-A2 1 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4454-A2 2 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4454-A2 3 6.g.iv Transport water EPA-HQ-OW-2009-0819-4454-A2 4 6.g.ix Bottom ash and boiler slag EPA-HQ-OW-2009-0819-4454-A2 5 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4454-A2 6 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4454-A2 7 2 Legal Authority EPA-HQ-OW-2009-0819-4454-A2 8 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4454-A2 9 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4454-A2 10 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4454-A2 11 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4454-A2 12 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4454-A2 13 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4454-A2 14 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4454-A2 15 26.c Regulatory Implementation – Legacy WasteEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4454-A2 16 2 Legal Authority

EPA-HQ-OW-2009-0819-4454-A2 17 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4454-A2 18 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4455-A1 1 6.i.vii Support/oppose Options 3/4a EPA-HQ-OW-2009-0819-4455-A1 2 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4455-A1 3 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4455-A1 4 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4455-A1 6 15.a BA Transport Water – General/Scope EPA-HQ-OW-2009-0819-4455-A1 7 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4455-A1 8 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4455-A1 9 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4455-A1 10 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4455-A1 11 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4455-A1 12 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4455-A1 13 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4455-A1 14 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4455-A1 15 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4455-A1 16 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4455-A1 17 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4455-A1 18 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4455-A1 19 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4455-A1 21 25.f.ii EA WQM – Benchmarks

EPA-HQ-OW-2009-0819-4456-A1 1 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4456-A1 2 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4456-A1 3 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4456-A1 4 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4456-A1 5 6.g.xi FGD gypsum EPA-HQ-OW-2009-0819-4456-A1 6 6 Regulatory Options EPA-HQ-OW-2009-0819-4456-A1 7 2 Legal Authority

EPA-HQ-OW-2009-0819-4456-A1 8 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4457-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4457-A1 2 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4457-A1 3 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4457-A1 4 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4457-A1 5 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4457-A1 6 6.g.xii Primary particulate collection system EPA-HQ-OW-2009-0819-4457-A1 7 6.g.xiii Flue gas mercury control water (FGMC)Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4457-A1 8 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4457-A1 9 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4457-A1 10 5 Scope and Applicability EPA-HQ-OW-2009-0819-4457-A1 11 6.g.xii Primary particulate collection system EPA-HQ-OW-2009-0819-4457-A1 12 6.g.xiii Flue gas mercury control water (FGMC) EPA-HQ-OW-2009-0819-4457-A1 13 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4458-A1 2 1.a.i General Support

EPA-HQ-OW-2009-0819-4458-A1 3 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4458-A1 4 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4458-A1 5 2 Legal Authority EPA-HQ-OW-2009-0819-4458-A1 6 6.g.xviii Changing definitions

EPA-HQ-OW-2009-0819-4458-A1 7 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4458-A1 8 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4458-A1 9 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4458-A1 10 6.g.xiv Low volume waste EPA-HQ-OW-2009-0819-4458-A1 11 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4458-A1 12 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4458-A1 13 23.a Gasification – General/Scope

EPA-HQ-OW-2009-0819-4458-A1 14 21 Flue Gas Mercury Control (FGMC) Wastewater

EPA-HQ-OW-2009-0819-4458-A1 15 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4458-A1 16 2 Legal Authority

EPA-HQ-OW-2009-0819-4458-A1 17 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4458-A1 18 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4458-A1 19 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4458-A1 20 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4458-A1 21 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4458-A1 22 2 Legal Authority EPA-HQ-OW-2009-0819-4458-A1 23 2 Legal Authority EPA-HQ-OW-2009-0819-4458-A1 24 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4458-A1 25 2 Legal Authority EPA-HQ-OW-2009-0819-4458-A1 26 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4458-A1 27 2 Legal Authority

EPA-HQ-OW-2009-0819-4458-A1 28 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4458-A1 29 22.a NMCW – General/ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4458-A1 30 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4458-A1 31 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4458-A1 32 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4458-A1 33 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4458-A1 34 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4458-A1 35 26.e Regulatory Implementation – Net Credits EPA-HQ-OW-2009-0819-4458-A1 36 32 Analytical Methods EPA-HQ-OW-2009-0819-4458-A1 37 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4458-A1 38 27 Coordination with Other EPA Rules

EPA-HQ-OW-2009-0819-4459-A1 1 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4459-A1 2 5.c Scope and Applicability – Threshold

EPA-HQ-OW-2009-0819-4459-A1 3 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4459-A1 4 15.b BA Transport Water – Profile

EPA-HQ-OW-2009-0819-4459-A1 5 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4459-A1 6 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4459-A1 7 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4459-A1 8 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4459-A1 9 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4459-A1 10 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4459-A1 11 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4459-A1 12 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4459-A1 13 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4459-A1 14 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4459-A1 15 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4459-A1 16 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4459-A1 17 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4459-A1 18 15.a BA Transport Water – General/Scope EPA-HQ-OW-2009-0819-4459-A1 19 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4459-A1 20 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4459-A1 21 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4459-A1 22 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4459-A1 23 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4459-A1 39 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4459-A1 40 15.a BA Transport Water – General/Scope

EPA-HQ-OW-2009-0819-4459-A1 41 15.c BA Transport Water – Wastewater CharacterizationEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4460-A1 1 28.f Econ – Electricity rate and household impacts

EPA-HQ-OW-2009-0819-4460-A1 2 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4460-A1 3 8 FGD Wastewater EPA-HQ-OW-2009-0819-4460-A1 4 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4460-A1 5 13 Fly Ash Transport Water

EPA-HQ-OW-2009-0819-4460-A1 6 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4460-A1 7 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4460-A1 8 2 Legal Authority EPA-HQ-OW-2009-0819-4460-A1 10 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4460-A1 11 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4460-A1 12 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4460-A1 13 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4460-A1 14 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4460-A1 15 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4460-A1 16 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4460-A1 18 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4460-A1 19 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4460-A1 20 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4460-A1 21 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4460-A1 22 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4460-A1 23 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4460-A1 24 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4460-A1 25 22.c NMCW – Wastewater Characterization EPA-HQ-OW-2009-0819-4460-A1 26 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4460-A1 27 8 FGD Wastewater EPA-HQ-OW-2009-0819-4460-A1 28 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4460-A1 29 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4460-A1 30 6.g.x FGD wastewater

EPA-HQ-OW-2009-0819-4460-A1 31 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4460-A1 32 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4460-A1 33 8 FGD Wastewater EPA-HQ-OW-2009-0819-4460-A1 34 9.b FGD CP – Costs EPA-HQ-OW-2009-0819-4460-A1 35 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4460-A1 36 8 FGD Wastewater EPA-HQ-OW-2009-0819-4460-A1 37 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4460-A1 38 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4460-A1 39 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4460-A1 40 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4460-A1 41 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4460-A1 42 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4460-A1 43 11.a FGD VCE – Demonstration/PerformanceEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4460-A1 44 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4460-A1 45 8 FGD Wastewater EPA-HQ-OW-2009-0819-4460-A1 46 11.a FGD VCE – Demonstration/Performance

EPA-HQ-OW-2009-0819-4460-A1 47 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4460-A1 48 8 FGD Wastewater EPA-HQ-OW-2009-0819-4460-A1 49 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4460-A1 50 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4460-A1 51 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4460-A1 52 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4460-A1 53 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4460-A1 54 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4460-A1 55 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4460-A1 56 7 Industry Operations EPA-HQ-OW-2009-0819-4460-A1 57 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4460-A1 58 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4460-A1 59 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4460-A1 60 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4460-A1 62 13.b FA Transport Water – Profile EPA-HQ-OW-2009-0819-4460-A1 63 14.b Dry Fly Ash Handling – Costs

EPA-HQ-OW-2009-0819-4460-A1 64 13.d FA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4460-A1 65 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-4460-A1 66 13 Fly Ash Transport Water

EPA-HQ-OW-2009-0819-4460-A1 67 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4460-A1 68 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4460-A1 69 19 Leachate Chemical Precipitation

EPA-HQ-OW-2009-0819-4460-A1 70 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4460-A1 71 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4460-A1 72 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4460-A1 73 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4460-A1 74 2 Legal Authority

EPA-HQ-OW-2009-0819-4460-A1 75 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4460-A1 76 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4460-A1 77 26.d Regulatory Implementation – Compliance MonitoringEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4460-A1 78 2 Legal Authority

EPA-HQ-OW-2009-0819-4460-A1 79 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4460-A1 80 2 Legal Authority

EPA-HQ-OW-2009-0819-4460-A1 81 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4460-A1 82 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs

EPA-HQ-OW-2009-0819-4460-A1 83 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4460-A1 85 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4460-A1 86 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4460-A1 87 3 Data

EPA-HQ-OW-2009-0819-4460-A1 88 28.b Econ – Total costs and economic impact analyses assumptions

EPA-HQ-OW-2009-0819-4460-A1 89 28.f Econ – Electricity rate and household impacts

EPA-HQ-OW-2009-0819-4461-A1 1 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4461-A1 2 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4461-A1 3 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4461-A1 4 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4461-A1 5 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4461-A1 6 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs

EPA-HQ-OW-2009-0819-4461-A1 7 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4462-A1 1 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4462-A1 2 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4462-A1 3 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4463-A1 1 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4463-A1 2 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4464-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4464-A1 2 28.j Econ – EOs 12866 and 13563

EPA-HQ-OW-2009-0819-4464-A1 3 6.e Regulatory Options – Ponds/Impoundments Used for Treatment EPA-HQ-OW-2009-0819-4464-A1 4 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4464-A1 5 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4464-A1 6 27.e Coordination – ORCR/CCREffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4464-A1 8 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4464-A1 9 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4464-A1 10 15.b BA Transport Water – Profile EPA-HQ-OW-2009-0819-4464-A1 11 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4464-A1 13 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4464-A1 14 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4464-A1 15 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4464-A1 16 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4464-A1 17 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4464-A1 18 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4464-A1 19 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4464-A1 20 5.c Scope and Applicability – Threshold

EPA-HQ-OW-2009-0819-4464-A1 21 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4464-A1 22 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4464-A1 23 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4464-A1 24 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4464-A1 25 26 Regulatory Implementation

EPA-HQ-OW-2009-0819-4464-A1 26 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4464-A1 27 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4464-A1 28 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4464-A1 29 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4464-A1 30 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4464-A1 31 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4464-A1 32 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4464-A1 33 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4465-A1 1 8 FGD Wastewater EPA-HQ-OW-2009-0819-4465-A1 2 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4465-A1 3 21.c FGMC – Wastewater Characterization EPA-HQ-OW-2009-0819-4465-A1 4 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4465-A1 5 22 Nonchemical Metal Cleaning Wastes (NMCW)

EPA-HQ-OW-2009-0819-4465-A1 6 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4465-A1 7 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4465-A1 8 26.d Regulatory Implementation – Compliance MonitoringEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4465-A1 9 5.e Scope and Applicability – Wastestreams Covered Under Low Volume Wastes (No Wastestream Specific Limitations) EPA-HQ-OW-2009-0819-4466-A1 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-4466-A1 2 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-4466-A1 3 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4466-A1 4 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-4466-A1 5 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4466-A1 6 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4466-A1 7 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-4466-A1 8 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4466-A1 9 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4466-A1 10 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4466-A1 11 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4466-A1 12 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4466-A1 13 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4466-A1 14 14 Dry Fly Ash Handling

EPA-HQ-OW-2009-0819-4466-A1 15 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4466-A1 16 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4466-A1 17 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-4466-A1 18 3 Data EPA-HQ-OW-2009-0819-4467-A1 1 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4467-A1 2 26.c Regulatory Implementation – Legacy Waste

EPA-HQ-OW-2009-0819-4467-A1 3 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4467-A1 4 8 FGD Wastewater EPA-HQ-OW-2009-0819-4467-A1 5 6.j.i Oppose BPJ

EPA-HQ-OW-2009-0819-4467-A1 6 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4467-A1 7 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4467-A1 8 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4467-A1 9 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4467-A1 10 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4467-A1 11 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4467-A1 12 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4467-A1 13 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4467-A1 14 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4467-A1 15 6.g.xiv Low volume waste EPA-HQ-OW-2009-0819-4467-A1 16 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4467-A1 17 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4467-A1 18 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4467-A1 19 6 Regulatory OptionsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4467-A1 20 8 FGD Wastewater EPA-HQ-OW-2009-0819-4467-A1 21 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4467-A1 22 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4467-A1 23 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4467-A1 24 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4467-A1 25 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4467-A1 26 8.d FGD – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4467-A1 27 6.c Regulatory Options – Technology Versus Water Quality Based Limitations EPA-HQ-OW-2009-0819-4467-A1 28 32 Analytical Methods EPA-HQ-OW-2009-0819-4467-A1 29 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4467-A1 30 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4467-A1 31 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4467-A1 32 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4467-A1 33 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4467-A1 34 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4467-A1 35 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4467-A1 36 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4467-A1 37 6.c Regulatory Options – Technology Versus Water Quality Based Limitations EPA-HQ-OW-2009-0819-4467-A1 38 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4467-A1 39 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4467-A1 40 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4467-A1 41 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4468-A1 1 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4469-A1 1 12 FGD Other Treatment Technologies

EPA-HQ-OW-2009-0819-4469-A1 2 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4469-A1 3 6.c Regulatory Options – Technology Versus Water Quality Based Limitations

EPA-HQ-OW-2009-0819-4469-A1 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4469-A1 5 6 Regulatory Options EPA-HQ-OW-2009-0819-4469-A1 6 12 FGD Other Treatment Technologies EPA-HQ-OW-2009-0819-4469-A1 7 31 Numeric Limits EPA-HQ-OW-2009-0819-4469-A1 8 6 Regulatory Options EPA-HQ-OW-2009-0819-4470-A1 1 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-4470-A1 2 6.g.x FGD wastewater EPA-HQ-OW-2009-0819-4470-A1 3 8.c FGD – Wastewater CharacterizationEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4470-A1 4 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4470-A1 5 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4470-A1 6 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4470-A1 7 14 Dry Fly Ash Handling

EPA-HQ-OW-2009-0819-4470-A1 8 13.d FA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4470-A1 9 14 Dry Fly Ash Handling

EPA-HQ-OW-2009-0819-4470-A1 10 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4470-A1 11 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4470-A1 12 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4470-A1 13 6.g.ix Bottom ash and boiler slag

EPA-HQ-OW-2009-0819-4470-A1 14 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4470-A1 15 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4470-A1 16 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4470-A1 17 19 Leachate Chemical Precipitation EPA-HQ-OW-2009-0819-4470-A1 18 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4470-A1 19 2 Legal Authority EPA-HQ-OW-2009-0819-4470-A1 20 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4470-A1 21 6.g.vii New source

EPA-HQ-OW-2009-0819-4470-A1 22 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4470-A1 23 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4470-A1 24 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4470-A1 25 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4470-A1 26 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4470-A1 27 6.g.iii Metal cleaning wastes (MCW); chemical metal cleaning wastes EPA-HQ-OW-2009-0819-4470-A1 28 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4470-A1 29 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4470-A1 30 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4471-A1 1 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4471-A1 2 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4471-A1 3 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4471-A1 4 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4471-A1 5 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4471-A1 6 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4471-A1 7 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4471-A1 8 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4471-A1 9 13 Fly Ash Transport WaterEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4471-A1 10 14.b Dry Fly Ash Handling – Costs EPA-HQ-OW-2009-0819-4471-A1 11 8 FGD Wastewater EPA-HQ-OW-2009-0819-4471-A1 12 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4471-A1 13 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4471-A1 14 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4471-A1 15 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4471-A1 16 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4471-A1 17 6.g.ii Nonchemical metal cleaning wastes (NCMCW)

EPA-HQ-OW-2009-0819-4471-A1 18 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4471-A1 19 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4471-A1 20 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4471-A1 21 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4471-A1 22 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4471-A1 23 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-4471-A1 24 3 Data EPA-HQ-OW-2009-0819-4472-A1 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4473-A1 1 29.h Benefits – Air-related benefits EPA-HQ-OW-2009-0819-4473-A1 2 28.j Econ – EOs 12866 and 13563 EPA-HQ-OW-2009-0819-4473-A1 3 29.h Benefits – Air-related benefits EPA-HQ-OW-2009-0819-4473-A1 4 29.h Benefits – Air-related benefits EPA-HQ-OW-2009-0819-4473-A1 5 29.b Benefits – Benefit analyses assumptions EPA-HQ-OW-2009-0819-4473-A1 6 29.h Benefits – Air-related benefits EPA-HQ-OW-2009-0819-4473-A1 7 29.h Benefits – Air-related benefits EPA-HQ-OW-2009-0819-4474-A1 1 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4474-A1 2 22.b NMCW – Profile

EPA-HQ-OW-2009-0819-4474-A1 3 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4474-A2 1 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4474-A2 2 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4474-A2 3 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4475-A1 2 6.g.xv Impoundment (CCR impoundment, surface impoundment) EPA-HQ-OW-2009-0819-4475-A1 3 6.i.v Support/oppose Option 3a/3b

EPA-HQ-OW-2009-0819-4475-A1 4 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4475-A1 5 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4475-A1 6 19 Leachate Chemical Precipitation EPA-HQ-OW-2009-0819-4475-A1 7 6.i.iv Support/oppose Options 4/5

EPA-HQ-OW-2009-0819-4475-A1 8 31.a Engr NL – Selection of Facilities for FGD WastewaterEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4475-A1 9 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4475-A1 10 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4475-A1 11 9 FGD Chemical Precipitation

EPA-HQ-OW-2009-0819-4475-A1 12 31.a Engr NL – Selection of Facilities for FGD Wastewater EPA-HQ-OW-2009-0819-4475-A1 13 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4475-A1 14 19 Leachate Chemical Precipitation

EPA-HQ-OW-2009-0819-4475-A1 15 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4475-A1 16 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4475-A1 17 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4475-A1 18 7 Industry Operations

EPA-HQ-OW-2009-0819-4475-A1 19 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4475-A1 20 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4475-A1 21 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4475-A1 22 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4475-A1 23 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4475-A1 24 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423

EPA-HQ-OW-2009-0819-4475-A1 25 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4475-A1 26 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4475-A1 27 11.c FGD VCE – Pollutant Loadings

EPA-HQ-OW-2009-0819-4475-A1 28 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4475-A1 29 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4475-A1 30 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4475-A1 31 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4475-A1 32 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4475-A1 33 8 FGD Wastewater EPA-HQ-OW-2009-0819-4475-A1 34 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4475-A1 35 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4475-A1 36 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4475-A1 37 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4475-A1 38 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4475-A1 39 31.a Engr NL – Selection of Facilities for FGD Wastewater

EPA-HQ-OW-2009-0819-4475-A1 40 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4475-A1 41 7 Industry Operations EPA-HQ-OW-2009-0819-4475-A1 42 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4475-A1 43 7 Industry OperationsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4475-A1 44 8 FGD Wastewater EPA-HQ-OW-2009-0819-4475-A1 45 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4475-A1 46 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4475-A1 47 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4475-A1 48 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4475-A1 49 15.b BA Transport Water – Profile

EPA-HQ-OW-2009-0819-4475-A1 50 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4475-A1 51 15.b BA Transport Water – Profile

EPA-HQ-OW-2009-0819-4475-A1 52 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4475-A1 53 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4475-A1 54 16.c Zero Discharge Bottom Ash – Pollutant Loads EPA-HQ-OW-2009-0819-4475-A1 55 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4475-A1 56 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4475-A1 57 7 Industry Operations

EPA-HQ-OW-2009-0819-4475-A1 58 16.c Zero Discharge Bottom Ash – Pollutant Loads EPA-HQ-OW-2009-0819-4475-A1 59 7 Industry Operations

EPA-HQ-OW-2009-0819-4475-A1 60 6.b Regulatory Options – EPA Pass-Through Analysis

EPA-HQ-OW-2009-0819-4475-A1 61 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4475-A1 62 19 Leachate Chemical Precipitation EPA-HQ-OW-2009-0819-4475-A1 63 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4475-A1 64 6.g.vii New source

EPA-HQ-OW-2009-0819-4475-A1 65 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4475-A1 66 18.c Leachate – Wastewater Characterization EPA-HQ-OW-2009-0819-4475-A1 67 7 Industry Operations EPA-HQ-OW-2009-0819-4475-A1 68 7 Industry Operations

EPA-HQ-OW-2009-0819-4475-A1 69 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4475-A1 70 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4475-A1 71 22.b NMCW – Profile

EPA-HQ-OW-2009-0819-4475-A1 72 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4475-A1 73 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4475-A1 74 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4475-A1 75 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4475-A1 76 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4475-A1 77 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4475-A1 78 9 FGD Chemical Precipitation

EPA-HQ-OW-2009-0819-4475-A1 79 31.a Engr NL – Selection of Facilities for FGD Wastewater EPA-HQ-OW-2009-0819-4475-A1 80 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4475-A1 81 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4475-A1 82 15.b BA Transport Water – Profile EPA-HQ-OW-2009-0819-4475-A1 83 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4475-A1 84 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4475-A1 85 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4475-A1 86 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4475-A1 87 7 Industry Operations

EPA-HQ-OW-2009-0819-4475-A1 88 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4475-A1 89 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4475-A1 90 22.b NMCW – Profile

EPA-HQ-OW-2009-0819-4475-A1 91 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4475-A1 92 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4475-A1 93 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4475-A1 94 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4475-A1 95 3 Data EPA-HQ-OW-2009-0819-4475-A1 96 3 Data EPA-HQ-OW-2009-0819-4475-A1 97 3 Data

EPA-HQ-OW-2009-0819-4476-A1 1 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4476-A1 2 6.i.ii Support Option 1 EPA-HQ-OW-2009-0819-4476-A1 3 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4476-A1 4 28.f Econ – Electricity rate and household impacts EPA-HQ-OW-2009-0819-4476-A1 5 8 FGD Wastewater EPA-HQ-OW-2009-0819-4476-A1 6 8 FGD Wastewater EPA-HQ-OW-2009-0819-4476-A1 7 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4476-A1 8 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4476-A1 9 15.c BA Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4476-A1 10 4.b Data Collection – Collection of Characterization DataEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4476-A1 11 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4476-A1 12 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4476-A1 13 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4476-A1 14 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4476-A1 15 6.i.i Support/oppose Zero Discharge

EPA-HQ-OW-2009-0819-4476-A1 16 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4476-A1 18 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4476-A1 19 6.g.iii Metal cleaning wastes (MCW); chemical metal cleaning wastes EPA-HQ-OW-2009-0819-4476-A1 20 22.c NMCW – Wastewater Characterization EPA-HQ-OW-2009-0819-4476-A1 21 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4476-A1 22 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4476-A1 23 22.b NMCW – Profile

EPA-HQ-OW-2009-0819-4476-A1 24 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4476-A1 25 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4476-A1 26 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4476-A1 27 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4476-A1 28 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4476-A1 29 32 Analytical Methods

EPA-HQ-OW-2009-0819-4477-A1 1 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA

EPA-HQ-OW-2009-0819-4477-A1 2 5.b Scope and Applicability – Subcategorization

EPA-HQ-OW-2009-0819-4477-A1 3 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4477-A1 4 6.e Regulatory Options – Ponds/Impoundments Used for Treatment EPA-HQ-OW-2009-0819-4477-A1 5 28.a Econ – Plants/owners profile EPA-HQ-OW-2009-0819-4477-A1 6 28.l Econ – Other comments

EPA-HQ-OW-2009-0819-4477-A1 7 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4477-A1 8 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4477-A1 9 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4477-A1 10 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4477-A1 11 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4477-A1 12 6.h Cost EffectivenessEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4477-A1 13 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4477-A1 14 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4477-A1 15 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4477-A1 16 10 FGD Biological Treatment

EPA-HQ-OW-2009-0819-4477-A1 17 5.e Scope and Applicability – Wastestreams Covered Under Low Volume Wastes (No Wastestream Specific Limitations)

EPA-HQ-OW-2009-0819-4477-A1 18 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA

EPA-HQ-OW-2009-0819-4477-A1 19 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4477-A1 20 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4477-A1 21 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4477-A1 22 28.j Econ – EOs 12866 and 13563

EPA-HQ-OW-2009-0819-4477-A1 23 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA

EPA-HQ-OW-2009-0819-4477-A1 25 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA EPA-HQ-OW-2009-0819-4478-A1 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4478-A1 2 6 Regulatory Options EPA-HQ-OW-2009-0819-4478-A1 3 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4478-A1 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4478-A1 5 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4479 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4479 2 25.b.ii EA Impacts – Ground Water

EPA-HQ-OW-2009-0819-4479 3 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4479 4 1.a.i General Support EPA-HQ-OW-2009-0819-4480-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4480-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4480-A1 3 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4481 1 1.a.i General Support EPA-HQ-OW-2009-0819-4482 1 1.a.i General Support EPA-HQ-OW-2009-0819-4482 2 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4483-A1 1 6.g.x FGD wastewater EPA-HQ-OW-2009-0819-4483-A1 2 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4483-A1 3 2 Legal Authority EPA-HQ-OW-2009-0819-4483-A1 4 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4483-A1 5 22.a NMCW – General/ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4483-A1 6 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4483-A1 7 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4483-A1 8 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4483-A1 9 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4483-A1 10 22.b NMCW – Profile

EPA-HQ-OW-2009-0819-4483-A1 11 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4483-A1 12 28.j Econ – EOs 12866 and 13563

EPA-HQ-OW-2009-0819-4483-A1 13 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4483-A1 14 29.a Benefits – Analysis scope and benefit categories

EPA-HQ-OW-2009-0819-4483-A1 16 28.f Econ – Electricity rate and household impacts

EPA-HQ-OW-2009-0819-4484-A1 1 28.f Econ – Electricity rate and household impacts EPA-HQ-OW-2009-0819-4484-A1 2 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4484-A1 3 8 FGD Wastewater EPA-HQ-OW-2009-0819-4484-A1 4 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4484-A1 5 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4484-A1 6 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4484-A1 7 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4484-A1 8 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4484-A1 9 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4484-A1 10 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4484-A1 11 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4484-A1 12 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4484-A1 13 6.g.xiv Low volume waste EPA-HQ-OW-2009-0819-4484-A1 14 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4484-A1 15 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4484-A1 16 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4484-A1 17 6.g.iv Transport water

EPA-HQ-OW-2009-0819-4484-A1 18 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4484-A1 19 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4484-A1 20 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4484-A1 21 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4484-A1 22 26.c Regulatory Implementation – Legacy WasteEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4484-A1 23 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4484-A1 24 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4485-A1 1 7 Industry Operations

EPA-HQ-OW-2009-0819-4485-A1 2 28.f Econ – Electricity rate and household impacts EPA-HQ-OW-2009-0819-4485-A1 3 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4485-A1 4 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4485-A1 5 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4485-A1 6 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4486-A2 1 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4486-A2 2 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423

EPA-HQ-OW-2009-0819-4486-A2 3 5.e Scope and Applicability – Wastestreams Covered Under Low Volume Wastes (No Wastestream Specific Limitations)

EPA-HQ-OW-2009-0819-4486-A2 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4486-A2 5 6 Regulatory Options EPA-HQ-OW-2009-0819-4486-A2 6 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4486-A2 7 6 Regulatory Options EPA-HQ-OW-2009-0819-4486-A2 9 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4486-A2 10 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4486-A2 11 10 FGD Biological Treatment

EPA-HQ-OW-2009-0819-4486-A2 12 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4486-A2 13 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4486-A2 14 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4486-A2 15 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4486-A2 16 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4486-A2 17 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4486-A2 18 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4486-A2 19 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4486-A2 20 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423

EPA-HQ-OW-2009-0819-4486-A2 21 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4486-A2 22 6 Regulatory Options EPA-HQ-OW-2009-0819-4486-A2 23 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4486-A2 24 10.a FGD Bio – Demonstration/PerformanceEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4487-A1 1 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4487-A1 2 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4487-A1 3 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4487-A1 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4487-A1 5 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4487-A1 6 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4487-A1 7 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4487-A1 8 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4487-A1 9 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4487-A1 10 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4487-A1 11 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4487-A1 12 28.j Econ – EOs 12866 and 13563

EPA-HQ-OW-2009-0819-4487-A1 13 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4487-A1 14 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4487-A1 16 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4487-A1 17 8 FGD Wastewater EPA-HQ-OW-2009-0819-4487-A1 18 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4487-A1 19 2 Legal Authority EPA-HQ-OW-2009-0819-4487-A1 20 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4487-A1 21 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4487-A1 22 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4487-A1 23 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4487-A1 24 8 FGD Wastewater EPA-HQ-OW-2009-0819-4487-A1 25 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4487-A1 26 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4487-A1 27 21.a FGMC – General/Scope EPA-HQ-OW-2009-0819-4487-A1 28 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4487-A1 29 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4487-A1 30 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4487-A1 31 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4487-A1 32 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4487-A1 33 2 Legal Authority EPA-HQ-OW-2009-0819-4487-A1 34 2 Legal Authority EPA-HQ-OW-2009-0819-4487-A1 35 8 FGD Wastewater EPA-HQ-OW-2009-0819-4487-A1 36 8.c FGD – Wastewater CharacterizationEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4487-A1 37 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4487-A1 38 8 FGD Wastewater EPA-HQ-OW-2009-0819-4487-A1 39 31 Numeric Limits EPA-HQ-OW-2009-0819-4487-A1 40 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4487-A1 41 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4487-A1 42 8 FGD Wastewater EPA-HQ-OW-2009-0819-4487-A1 43 8 FGD Wastewater EPA-HQ-OW-2009-0819-4487-A1 44 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4487-A1 45 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4487-A1 47 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4487-A1 48 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4487-A1 49 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4487-A1 50 6.g.iv Transport water EPA-HQ-OW-2009-0819-4487-A1 51 13 Fly Ash Transport Water

EPA-HQ-OW-2009-0819-4487-A1 52 13.c FA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4487-A1 53 14.b Dry Fly Ash Handling – Costs

EPA-HQ-OW-2009-0819-4487-A1 54 14.a Dry Fly Ash Handling – Demonstration/Performance EPA-HQ-OW-2009-0819-4487-A1 55 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4487-A1 56 19 Leachate Chemical Precipitation EPA-HQ-OW-2009-0819-4487-A1 57 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4487-A1 58 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4487-A1 59 5.e Scope and Applicability – Wastestreams Covered Under Low Volume Wastes (No Wastestream Specific Limitations) EPA-HQ-OW-2009-0819-4487-A1 60 19 Leachate Chemical Precipitation EPA-HQ-OW-2009-0819-4487-A1 61 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4487-A1 62 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4487-A1 63 19 Leachate Chemical Precipitation EPA-HQ-OW-2009-0819-4487-A1 64 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4487-A1 65 6.g.vii New source EPA-HQ-OW-2009-0819-4487-A1 66 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4487-A1 67 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4487-A1 68 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4487-A1 69 23 Gasification Wastewater EPA-HQ-OW-2009-0819-4487-A1 70 23.b Gasification – Profile

EPA-HQ-OW-2009-0819-4487-A1 71 31.d Stats NL – Selection of Data Within Facilities for Gasification WastewaterEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4487-A1 72 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4487-A1 73 23.c Gasification – Wastewater Characterization EPA-HQ-OW-2009-0819-4487-A1 74 23 Gasification Wastewater EPA-HQ-OW-2009-0819-4487-A1 75 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4487-A1 76 6.g.vi Gasification wastewater EPA-HQ-OW-2009-0819-4487-A1 77 21.a FGMC – General/Scope

EPA-HQ-OW-2009-0819-4487-A1 78 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4487-A1 79 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4487-A1 80 6.b Regulatory Options – EPA Pass-Through Analysis

EPA-HQ-OW-2009-0819-4487-A1 81 6.b Regulatory Options – EPA Pass-Through Analysis EPA-HQ-OW-2009-0819-4487-A1 82 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4487-A1 83 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4487-A1 84 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4487-A1 85 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4487-A1 86 6 Regulatory Options EPA-HQ-OW-2009-0819-4487-A1 87 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4487-A1 88 2 Legal Authority EPA-HQ-OW-2009-0819-4487-A1 89 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4487-A1 90 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4487-A1 91 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4487-A1 92 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4487-A1 93 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4487-A1 94 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4487-A1 95 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4487-A1 96 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4487-A1 97 29.b Benefits – Benefit analyses assumptions

EPA-HQ-OW-2009-0819-4487-A1 98 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4487-A1 99 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4487-A1 100 25.f.i EA WQM – Methodology

EPA-HQ-OW-2009-0819-4487-A1 101 29.d Benefits – Water quality improvement nonuse benefits

EPA-HQ-OW-2009-0819-4487-A1 102 29.d Benefits – Water quality improvement nonuse benefits EPA-HQ-OW-2009-0819-4487-A1 103 25.f.i EA WQM – Methodology EPA-HQ-OW-2009-0819-4487-A1 105 25.g.i EA WLM – Methodology EPA-HQ-OW-2009-0819-4487-A1 106 25.h EA – Human Health ModelEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4487-A1 107 29.b Benefits – Benefit analyses assumptions EPA-HQ-OW-2009-0819-4487-A1 108 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4487-A1 109 14.b Dry Fly Ash Handling – Costs EPA-HQ-OW-2009-0819-4487-A1 110 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4487-A1 111 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4487-A1 112 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4487-A1 113 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4487-A1 114 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4487-A1 115 1.d General – Alternative Fuels

EPA-HQ-OW-2009-0819-4487-A1 116 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4487-A1 117 28.j Econ – EOs 12866 and 13563 EPA-HQ-OW-2009-0819-4487-A1 118 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4487-A1 119 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4487-A1 120 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4487-A1 121 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4487-A1 122 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4487-A1 123 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4487-A1 124 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4487-A1 125 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4487-A1 126 28.f Econ – Electricity rate and household impacts EPA-HQ-OW-2009-0819-4487-A1 127 28.l Econ – Other comments EPA-HQ-OW-2009-0819-4487-A1 129 29.h Benefits – Air-related benefits

EPA-HQ-OW-2009-0819-4487-A1 130 29.g Benefits – Benefits from avoided impoundment failures

EPA-HQ-OW-2009-0819-4488-A1 1 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4488-A1 3 2 Legal Authority

EPA-HQ-OW-2009-0819-4488-A1 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4488-A1 5 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4488-A1 6 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4488-A1 7 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4489-A1 1 2 Legal Authority EPA-HQ-OW-2009-0819-4489-A1 2 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4489-A1 3 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4489-A1 4 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4489-A1 5 16 Zero Discharge Bottom AshEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4489-A1 6 16.c Zero Discharge Bottom Ash – Pollutant Loads EPA-HQ-OW-2009-0819-4489-A1 7 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4489-A1 8 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4489-A1 9 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4489-A1 10 8 FGD Wastewater EPA-HQ-OW-2009-0819-4489-A1 11 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4489-A1 12 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4489-A1 13 8 FGD Wastewater EPA-HQ-OW-2009-0819-4489-A1 14 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4489-A1 15 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4489-A1 16 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4489-A1 17 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4489-A1 18 11.a FGD VCE – Demonstration/Performance

EPA-HQ-OW-2009-0819-4489-A1 19 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4489-A1 20 8 FGD Wastewater EPA-HQ-OW-2009-0819-4489-A1 21 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4489-A1 22 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4489-A1 23 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4489-A1 24 2 Legal Authority

EPA-HQ-OW-2009-0819-4489-A1 25 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4489-A1 26 19 Leachate Chemical Precipitation

EPA-HQ-OW-2009-0819-4489-A1 27 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4489-A1 28 5.e Scope and Applicability – Wastestreams Covered Under Low Volume Wastes (No Wastestream Specific Limitations) EPA-HQ-OW-2009-0819-4489-A1 29 6.g.vii New source EPA-HQ-OW-2009-0819-4489-A1 30 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4489-A1 31 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4489-A1 32 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4489-A1 33 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4489-A1 34 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4489-A1 35 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4489-A1 36 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4489-A1 37 22.b NMCW – Profile

EPA-HQ-OW-2009-0819-4489-A1 38 4.b Data Collection – Collection of Characterization DataEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4489-A1 39 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4489-A1 40 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4489-A1 41 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4489-A1 42 2 Legal Authority EPA-HQ-OW-2009-0819-4489-A1 43 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4489-A1 44 22.d NMCW – Treatment Technologies

EPA-HQ-OW-2009-0819-4489-A1 45 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4489-A1 46 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4489-A1 47 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4489-A1 48 2 Legal Authority

EPA-HQ-OW-2009-0819-4489-A1 49 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4489-A1 50 2 Legal Authority

EPA-HQ-OW-2009-0819-4489-A1 51 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4489-A1 52 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4489-A1 53 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4489-A1 54 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs

EPA-HQ-OW-2009-0819-4489-A1 55 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4489-A1 56 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4489-A1 57 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4489-A1 58 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4489-A1 59 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4489-A1 60 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4489-A1 61 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4489-A1 62 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4489-A1 63 3 Data EPA-HQ-OW-2009-0819-4490-A1 1 6 Regulatory Options

EPA-HQ-OW-2009-0819-4490-A1 4 14.a Dry Fly Ash Handling – Demonstration/Performance EPA-HQ-OW-2009-0819-4490-A1 5 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4490-A1 7 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4490-A1 9 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4490-A1 10 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4490-A1 11 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4490-A1 12 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4490-A1 13 14.b Dry Fly Ash Handling – Costs EPA-HQ-OW-2009-0819-4490-A1 15 8 FGD Wastewater EPA-HQ-OW-2009-0819-4490-A1 16 8 FGD WastewaterEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4490-A1 17 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4490-A1 18 29.i Benefits – Benefits from reduced water withdrawals

EPA-HQ-OW-2009-0819-4490-A1 19 29.i Benefits – Benefits from reduced water withdrawals EPA-HQ-OW-2009-0819-4490-A1 20 6.i.iii Support Option 5

EPA-HQ-OW-2009-0819-4490-A1 21 29.i Benefits – Benefits from reduced water withdrawals

EPA-HQ-OW-2009-0819-4490-A1 22 29.i Benefits – Benefits from reduced water withdrawals

EPA-HQ-OW-2009-0819-4490-A1 23 25.b.vi EA Impacts – Other Impacts/Exposure Pathway

EPA-HQ-OW-2009-0819-4490-A1 24 29.i Benefits – Benefits from reduced water withdrawals

EPA-HQ-OW-2009-0819-4490-A1 25 25.b.vi EA Impacts – Other Impacts/Exposure Pathway

EPA-HQ-OW-2009-0819-4490-A1 26 29.i Benefits – Benefits from reduced water withdrawals

EPA-HQ-OW-2009-0819-4490-A1 27 29.i Benefits – Benefits from reduced water withdrawals

EPA-HQ-OW-2009-0819-4490-A1 28 29.i Benefits – Benefits from reduced water withdrawals

EPA-HQ-OW-2009-0819-4490-A1 29 29.a Benefits – Analysis scope and benefit categories

EPA-HQ-OW-2009-0819-4490-A1 30 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4491-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4491-A1 2 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4491-A1 3 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4491-A1 4 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4491-A1 5 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4491-A1 6 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4491-A1 7 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4491-A1 8 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4491-A1 9 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4491-A1 10 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4491-A1 11 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4491-A1 12 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-4491-A1 13 8 FGD Wastewater EPA-HQ-OW-2009-0819-4491-A1 14 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4491-A1 15 8 FGD Wastewater EPA-HQ-OW-2009-0819-4491-A1 16 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4491-A1 17 8.c FGD – Wastewater CharacterizationEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4491-A1 18 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4491-A1 19 8 FGD Wastewater EPA-HQ-OW-2009-0819-4491-A1 20 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4491-A1 21 22.c NMCW – Wastewater Characterization EPA-HQ-OW-2009-0819-4491-A1 22 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4491-A1 23 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4491-A1 24 6.g.xiv Low volume waste EPA-HQ-OW-2009-0819-4491-A1 25 21.a FGMC – General/Scope

EPA-HQ-OW-2009-0819-4491-A1 26 21 Flue Gas Mercury Control (FGMC) Wastewater EPA-HQ-OW-2009-0819-4491-A1 27 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4491-A1 28 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4491-A1 29 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4491-A1 30 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4491-A1 31 22.d NMCW – Treatment Technologies

EPA-HQ-OW-2009-0819-4491-A1 32 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4491-A1 33 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4491-A1 34 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4491-A1 35 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4491-A1 36 6.h Cost Effectiveness

EPA-HQ-OW-2009-0819-4491-A1 37 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4492 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4492 2 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-4492 3 8 FGD Wastewater EPA-HQ-OW-2009-0819-4492 4 1.a.i General Support EPA-HQ-OW-2009-0819-4493 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4493 2 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4494 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4494 2 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-4494 3 6.i.iii Support Option 5

EPA-HQ-OW-2009-0819-4495-A1 1 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4495-A1 2 5 Scope and Applicability EPA-HQ-OW-2009-0819-4495-A1 3 5 Scope and Applicability

EPA-HQ-OW-2009-0819-4495-A1 5 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4495-A1 6 29.b Benefits – Benefit analyses assumptions EPA-HQ-OW-2009-0819-4495-A1 7 2 Legal Authority

EPA-HQ-OW-2009-0819-4495-A1 8 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4495-A1 9 6.g.vii New sourceEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4495-A1 10 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4495-A1 11 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4495-A1 12 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4495-A1 13 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-4495-A1 14 14.b Dry Fly Ash Handling – Costs

EPA-HQ-OW-2009-0819-4495-A1 15 14.a Dry Fly Ash Handling – Demonstration/Performance EPA-HQ-OW-2009-0819-4495-A1 16 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4495-A1 17 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4495-A1 18 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4495-A1 19 15.c BA Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4495-A1 20 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4495-A1 21 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4495-A1 22 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4495-A1 23 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4495-A1 24 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4495-A1 25 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4495-A1 26 18.c Leachate – Wastewater Characterization

EPA-HQ-OW-2009-0819-4495-A1 27 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4495-A1 28 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4495-A1 29 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4495-A1 30 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4495-A1 31 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4495-A1 32 2 Legal Authority

EPA-HQ-OW-2009-0819-4495-A1 33 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4495-A1 34 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4495-A1 35 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4495-A1 36 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4495-A1 38 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4495-A1 39 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4495-A1 41 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4495-A1 42 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4495-A1 43 1.b General – Against Rulemaking EPA-HQ-OW-2009-0819-4495-A1 44 29.c Benefits – Human health benefitsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4495-A1 45 29.i Benefits – Benefits from reduced water withdrawals

EPA-HQ-OW-2009-0819-4495-A1 46 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-4496 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4496 2 1.a.i General Support EPA-HQ-OW-2009-0819-4496 3 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4497-A1 1 2 Legal Authority EPA-HQ-OW-2009-0819-4497-A1 2 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4498-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4498-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4499-A1 1 8 FGD Wastewater EPA-HQ-OW-2009-0819-4499-A1 2 8 FGD Wastewater EPA-HQ-OW-2009-0819-4499-A1 3 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4499-A1 4 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4499-A1 5 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4499-A1 6 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4499-A1 7 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater EPA-HQ-OW-2009-0819-4499-A1 8 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4499-A1 9 31.c.ii Stats NL Select Data for FGD – Chemical Precipitation followed by Biological Treatment

EPA-HQ-OW-2009-0819-4499-A1 10 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4499-A1 11 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4499-A1 13 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4499-A1 14 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4499-A1 15 31 Numeric Limits EPA-HQ-OW-2009-0819-4499-A1 16 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4499-A1 17 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4499-A1 18 32 Analytical Methods

EPA-HQ-OW-2009-0819-4499-A1 19 22 Nonchemical Metal Cleaning Wastes (NMCW)

EPA-HQ-OW-2009-0819-4499-A1 20 29.g Benefits – Benefits from avoided impoundment failures

EPA-HQ-OW-2009-0819-4499-A1 21 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4499-A1 22 8 FGD Wastewater EPA-HQ-OW-2009-0819-4499-A1 23 9.b FGD CP – Costs EPA-HQ-OW-2009-0819-4499-A1 24 9.b FGD CP – Costs EPA-HQ-OW-2009-0819-4499-A1 25 9.b FGD CP – Costs EPA-HQ-OW-2009-0819-4499-A1 26 9.b FGD CP – Costs EPA-HQ-OW-2009-0819-4499-A1 27 9.b FGD CP – CostsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4499-A1 28 8 FGD Wastewater EPA-HQ-OW-2009-0819-4499-A1 29 9.b FGD CP – Costs EPA-HQ-OW-2009-0819-4499-A1 30 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4499-A1 31 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4499-A1 32 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4499-A1 33 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4499-A1 34 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4499-A1 35 8 FGD Wastewater EPA-HQ-OW-2009-0819-4499-A1 36 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4499-A1 41 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4499-A1 42 8 FGD Wastewater EPA-HQ-OW-2009-0819-4499-A1 43 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4499-A1 44 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4499-A1 45 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4499-A1 46 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4499-A1 47 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4499-A1 48 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4499-A1 49 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4499-A1 50 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4499-A1 51 8.c FGD – Wastewater Characterization

EPA-HQ-OW-2009-0819-4499-A1 52 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater EPA-HQ-OW-2009-0819-4499-A1 53 9.a FGD CP – Demonstration/Performance

EPA-HQ-OW-2009-0819-4499-A1 54 31.c.ii Stats NL Select Data for FGD – Chemical Precipitation followed by Biological Treatment EPA-HQ-OW-2009-0819-4499-A1 55 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4499-A1 56 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4499-A1 57 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4499-A1 58 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4499-A1 59 31.a.i Engr NL Select Facs for FGD – Chemical Precipitation Treatment

EPA-HQ-OW-2009-0819-4499-A1 60 31.h Stats NL – Statistical Method used to Calculate the Limits

EPA-HQ-OW-2009-0819-4499-A1 61 11 FGD Vapor-Compression Evaporation System

EPA-HQ-OW-2009-0819-4499-A1 62 31.c.iii Stats NL Select Data for FGD – Chemical Precipitation followed by Vapor-Compression Evaporation Treatment

EPA-HQ-OW-2009-0819-4499-A1 63 11 FGD Vapor-Compression Evaporation System

EPA-HQ-OW-2009-0819-4499-A1 64 31.h.i Stats NL Stat Method Used – Comments on Appendix B

EPA-HQ-OW-2009-0819-4499-A1 65 31.h.i Stats NL Stat Method Used – Comments on Appendix BEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4499-A1 66 31.h.i Stats NL Stat Method Used – Comments on Appendix B EPA-HQ-OW-2009-0819-4499-A1 67 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4499-A1 68 31.f Stats NL – Data Aggregation

EPA-HQ-OW-2009-0819-4499-A1 69 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4499-A1 70 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4499-A1 71 16.c Zero Discharge Bottom Ash – Pollutant Loads

EPA-HQ-OW-2009-0819-4499-A1 72 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4499-A1 73 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4499-A1 74 17 Combined Ash Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4499-A1 75 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4499-A1 76 32 Analytical Methods

EPA-HQ-OW-2009-0819-4499-A1 77 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4499-A1 78 17 Combined Ash Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4499-A1 79 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4499-A1 80 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4499-A1 81 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4499-A1 82 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4499-A1 83 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4499-A1 84 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4499-A1 85 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4499-A1 86 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4499-A1 87 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4499-A1 88 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4499-A1 89 32 Analytical Methods EPA-HQ-OW-2009-0819-4499-A1 90 32 Analytical Methods EPA-HQ-OW-2009-0819-4499-A1 91 32 Analytical Methods

EPA-HQ-OW-2009-0819-4499-A1 92 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4499-A1 93 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4499-A1 94 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4499-A1 95 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4499-A1 96 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4499-A1 97 19 Leachate Chemical PrecipitationEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4499-A1 98 19.b Leachate CP – Costs

EPA-HQ-OW-2009-0819-4499-A1 99 26.c Regulatory Implementation – Legacy Waste

EPA-HQ-OW-2009-0819-4499-A1 100 29.g Benefits – Benefits from avoided impoundment failures

EPA-HQ-OW-2009-0819-4499-A1 101 29.g Benefits – Benefits from avoided impoundment failures

EPA-HQ-OW-2009-0819-4499-A1 102 29.g Benefits – Benefits from avoided impoundment failures

EPA-HQ-OW-2009-0819-4499-A1 103 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4499-A1 104 9.b FGD CP – Costs EPA-HQ-OW-2009-0819-4499-A1 105 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4499-A1 106 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4499-A1 107 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4499-A1 108 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4499-A1 109 9.c FGD CP – Pollutant Loadings EPA-HQ-OW-2009-0819-4499-A1 110 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4499-A1 111 11.c FGD VCE – Pollutant Loadings EPA-HQ-OW-2009-0819-4499-A1 112 8.d FGD – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4499-A1 113 31.h.i Stats NL Stat Method Used – Comments on Appendix B

EPA-HQ-OW-2009-0819-4499-A1 115 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4499-A1 116 3 Data EPA-HQ-OW-2009-0819-4499-A1 117 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4499-A1 118 19 Leachate Chemical Precipitation EPA-HQ-OW-2009-0819-4499-A1 119 19.b Leachate CP – Costs EPA-HQ-OW-2009-0819-4499-A1 120 19.c Leachate CP – Pollutant Loadings

EPA-HQ-OW-2009-0819-4499-A1 121 31.h Stats NL – Statistical Method used to Calculate the Limits

EPA-HQ-OW-2009-0819-4499-A1 122 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4499-A1 123 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4499-A1 124 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4499-A1 125 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4499-A1 126 31.h.i Stats NL Stat Method Used – Comments on Appendix B

EPA-HQ-OW-2009-0819-4499-A1 127 31.h.i Stats NL Stat Method Used – Comments on Appendix B EPA-HQ-OW-2009-0819-4499-A1 128 31.f Stats NL – Data Aggregation EPA-HQ-OW-2009-0819-4499-A1 129 31.f Stats NL – Data AggregationEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4499-A1 130 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4499-A1 131 9.a FGD CP – Demonstration/Performance

EPA-HQ-OW-2009-0819-4499-A1 132 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4499-A1 133 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4499-A1 134 31.h.ii Calculation of the Serial Correlation (Autocorrelation) EPA-HQ-OW-2009-0819-4499-A1 135 31.f Stats NL – Data Aggregation

EPA-HQ-OW-2009-0819-4501-A1 1 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4501-A1 2 6.i.iv Support/oppose Options 4/5

EPA-HQ-OW-2009-0819-4501-A1 3 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4501-A1 4 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4501-A1 6 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4501-A1 7 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4501-A1 8 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4507-A2 1 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4507-A2 2 6.b Regulatory Options – EPA Pass-Through Analysis EPA-HQ-OW-2009-0819-4508-A2 1 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4508-A2 2 5.c Scope and Applicability – Threshold

EPA-HQ-OW-2009-0819-4508-A2 3 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4508-A2 4 15.a BA Transport Water – General/Scope EPA-HQ-OW-2009-0819-4508-A2 5 15.b BA Transport Water – Profile EPA-HQ-OW-2009-0819-4508-A2 6 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4508-A2 7 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4508-A2 8 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4508-A2 9 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4508-A2 10 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4508-A2 11 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4508-A2 12 8 FGD Wastewater EPA-HQ-OW-2009-0819-4508-A2 13 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4508-A2 14 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4508-A2 15 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4509-A2 1 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4509-A2 2 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4509-A2 3 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4510-A2 1 1.b General – Against RulemakingEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4510-A2 2 6.i.v Support/oppose Option 3a/3b EPA-HQ-OW-2009-0819-4510-A2 3 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4510-A2 4 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4510-A2 5 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4510-A2 6 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4510-A2 7 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4510-A2 8 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4510-A2 9 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4510-A2 10 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4510-A2 11 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4510-A2 12 6.d Regulatory Options – NPDES Program Provisions EPA-HQ-OW-2009-0819-4510-A2 13 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4510-A2 14 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4510-A2 15 8 FGD Wastewater EPA-HQ-OW-2009-0819-4510-A2 16 8 FGD Wastewater EPA-HQ-OW-2009-0819-4510-A2 17 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4510-A2 18 15.c BA Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4510-A2 19 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4510-A2 20 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4510-A2 21 6.g.iv Transport water EPA-HQ-OW-2009-0819-4510-A2 22 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4510-A2 23 6.e Regulatory Options – Ponds/Impoundments Used for Treatment EPA-HQ-OW-2009-0819-4510-A2 24 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4510-A2 25 5.c Scope and Applicability – Threshold

EPA-HQ-OW-2009-0819-4510-A2 26 6.d Regulatory Options – NPDES Program Provisions

EPA-HQ-OW-2009-0819-4510-A2 27 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4510-A2 28 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4510-A2 29 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4510-A2 30 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4510-A2 31 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4510-A2 32 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4510-A2 33 2 Legal Authority EPA-HQ-OW-2009-0819-4510-A2 34 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4510-A2 35 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4510-A2 36 6.g.vii New source EPA-HQ-OW-2009-0819-4510-A2 37 6.g.vii New source EPA-HQ-OW-2009-0819-4510-A2 38 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4510-A2 39 26.a Regulatory Implementation – Voluntary ProgramEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4510-A2 40 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4510-A2 41 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4510-A2 42 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4510-A2 43 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4510-A2 44 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4510-A2 45 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4511-A2 2 2 Legal Authority

EPA-HQ-OW-2009-0819-4511-A2 3 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4511-A2 5 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4511-A2 6 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4511-A2 7 29.a Benefits – Analysis scope and benefit categories

EPA-HQ-OW-2009-0819-4511-A2 9 29.a Benefits – Analysis scope and benefit categories

EPA-HQ-OW-2009-0819-4511-A2 11 28.b Econ – Total costs and economic impact analyses assumptions EPA-HQ-OW-2009-0819-4511-A2 13 28.j Econ – EOs 12866 and 13563

EPA-HQ-OW-2009-0819-4511-A2 16 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4512-A2 1 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4512-A2 2 5.c Scope and Applicability – Threshold

EPA-HQ-OW-2009-0819-4512-A2 3 6.c Regulatory Options – Technology Versus Water Quality Based Limitations

EPA-HQ-OW-2009-0819-4512-A2 4 6.c Regulatory Options – Technology Versus Water Quality Based Limitations EPA-HQ-OW-2009-0819-4512-A2 5 25.f EA – Water Quality Model

EPA-HQ-OW-2009-0819-4513-A2 1 25.c.ii EA Loadings – Loadings to Chesapeake Bay and Great Lakes Watersheds EPA-HQ-OW-2009-0819-4513-A2 2 1.a.i General Support EPA-HQ-OW-2009-0819-4513-A2 3 8 FGD Wastewater EPA-HQ-OW-2009-0819-4513-A2 4 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-4514-A2 1 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4514-A2 2 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4515-A2 1 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4515-A2 2 2 Legal Authority EPA-HQ-OW-2009-0819-4515-A2 3 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4515-A2 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4515-A2 5 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4516-A2 2 27 Coordination with Other EPA RulesEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4516-A2 3 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4516-A2 4 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4516-A2 5 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4516-A2 6 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4516-A2 7 31.e Stats NL – Baseline Substitutions EPA-HQ-OW-2009-0819-4516-A2 8 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4516-A2 9 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4516-A2 10 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4516-A2 11 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4516-A2 12 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4516-A2 13 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4516-A2 14 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4516-A2 15 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4516-A2 16 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4516-A2 17 31.e Stats NL – Baseline Substitutions EPA-HQ-OW-2009-0819-4516-A2 18 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4516-A2 19 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4516-A2 20 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4516-A2 21 28.f Econ – Electricity rate and household impacts

EPA-HQ-OW-2009-0819-4517-A2 1 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4517-A2 2 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4517-A2 3 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4517-A2 4 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4517-A2 5 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4517-A2 6 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4517-A2 7 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4517-A2 8 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4517-A2 9 8 FGD Wastewater EPA-HQ-OW-2009-0819-4517-A2 10 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4517-A2 11 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4517-A2 12 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4518-A2 1 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4518-A2 2 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4518-A2 3 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4518-A2 4 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4518-A2 5 10.a FGD Bio – Demonstration/PerformanceEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4518-A2 6 8 FGD Wastewater EPA-HQ-OW-2009-0819-4518-A2 7 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4519-A2 1 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4519-A2 2 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4519-A2 3 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4519-A2 4 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4519-A2 5 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4519-A2 6 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4520-A2 1 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4520-A2 2 2 Legal Authority

EPA-HQ-OW-2009-0819-4520-A2 3 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4520-A2 4 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4520-A2 5 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4520-A2 6 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4520-A2 7 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4520-A2 8 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4520-A2 9 6.g.vi Gasification wastewater

EPA-HQ-OW-2009-0819-4520-A2 10 31.b Engr NL – Selection of Facilities for Gasification Wastewater EPA-HQ-OW-2009-0819-4520-A2 11 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4520-A2 14 28.g Econ – Employment impacts EPA-HQ-OW-2009-0819-4522-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4523-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4524-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4525-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4526-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4527-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4528-A1 1 1.d General – Alternative Fuels

EPA-HQ-OW-2009-0819-4529-A1 1 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4529-A1 2 2 Legal Authority

EPA-HQ-OW-2009-0819-4529-A1 3 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4529-A1 4 6.j.ii Support BPJ

EPA-HQ-OW-2009-0819-4529-A1 5 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4529-A1 6 26.c Regulatory Implementation – Legacy Waste

EPA-HQ-OW-2009-0819-4529-A1 7 18 Combustion Residual Landfill Leachate (Leachate)Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4529-A1 8 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4529-A1 9 6.g.ii Nonchemical metal cleaning wastes (NCMCW)

EPA-HQ-OW-2009-0819-4529-A1 10 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4529-A1 11 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4529-A1 12 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4529-A1 13 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4529-A1 14 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4530-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4531-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4532-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4533-A2 1 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4534-A2 1 23.a Gasification – General/Scope

EPA-HQ-OW-2009-0819-4534-A2 2 31.d Stats NL – Selection of Data Within Facilities for Gasification Wastewater EPA-HQ-OW-2009-0819-4534-A2 3 23.c Gasification – Wastewater Characterization

EPA-HQ-OW-2009-0819-4534-A2 4 31.b Engr NL – Selection of Facilities for Gasification Wastewater

EPA-HQ-OW-2009-0819-4534-A2 5 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4534-A2 6 23.d Gasification – Treatment Technologies EPA-HQ-OW-2009-0819-4534-A2 7 31 Numeric Limits EPA-HQ-OW-2009-0819-4534-A2 8 23 Gasification Wastewater EPA-HQ-OW-2009-0819-4534-A2 9 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4535-A2 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4535-A2 2 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4535-A2 3 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4535-A2 4 8 FGD Wastewater EPA-HQ-OW-2009-0819-4535-A2 5 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4535-A2 6 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-4535-A2 7 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4535-A2 8 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4535-A2 9 6.g.xv Impoundment (CCR impoundment, surface impoundment) EPA-HQ-OW-2009-0819-4535-A2 10 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4535-A2 11 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4535-A2 12 21.a FGMC – General/Scope EPA-HQ-OW-2009-0819-4535-A2 13 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4535-A2 14 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4535-A2 15 6.g.xvi Zero discharge and no dischargeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4535-A2 16 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4535-A2 17 22 Nonchemical Metal Cleaning Wastes (NMCW)

EPA-HQ-OW-2009-0819-4535-A2 18 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4535-A2 19 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4535-A2 20 2 Legal Authority EPA-HQ-OW-2009-0819-4535-A2 21 6 Regulatory Options EPA-HQ-OW-2009-0819-4535-A2 22 2 Legal Authority EPA-HQ-OW-2009-0819-4535-A2 23 6.g.viii Pretreatment 10-yr/24 hr storm

EPA-HQ-OW-2009-0819-4535-A2 24 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs

EPA-HQ-OW-2009-0819-4535-A2 25 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs

EPA-HQ-OW-2009-0819-4535-A2 26 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4537-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4538-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4538-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4539-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4540-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4541-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4542-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4543-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4544-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4545-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4546-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4547-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4548-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4548-A1 2 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4548-A1 3 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4548-A1 4 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4548-A1 5 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4548-A1 6 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4548-A1 7 8 FGD Wastewater EPA-HQ-OW-2009-0819-4548-A1 8 6.i.iii Support Option 5

EPA-HQ-OW-2009-0819-4548-A1 9 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4548-A1 10 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4549-A1 1 13.c FA Transport Water – Wastewater CharacterizationEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4549-A1 2 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4549-A1 3 12 FGD Other Treatment Technologies EPA-HQ-OW-2009-0819-4549-A1 4 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4549-A1 5 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4549-A1 6 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4551-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4552-A1 1 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4553-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4554-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4555-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4556-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4557-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4557-A1 2 6 Regulatory Options EPA-HQ-OW-2009-0819-4557-A1 3 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4557-A1 4 8 FGD Wastewater EPA-HQ-OW-2009-0819-4557-A1 6 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4557-A1 7 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4557-A1 8 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4557-A1 9 1.a.i General Support EPA-HQ-OW-2009-0819-4557-A1 10 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4557-A1 11 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4558-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4559-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4560-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4561-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4562-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4563-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4564-A1 1 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4564-A1 2 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4564-A1 3 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4565 1 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4565 2 6.h Cost Effectiveness

EPA-HQ-OW-2009-0819-4565 3 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4565 4 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4565 5 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4565 6 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4565 7 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4565 8 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4565 9 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4565 10 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4565 11 26.b Regulatory Implementation – TimingEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4565 12 5.c Scope and Applicability – Threshold

EPA-HQ-OW-2009-0819-4565-A1 1 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA EPA-HQ-OW-2009-0819-4565-A1 2 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4565-A1 3 6 Regulatory Options EPA-HQ-OW-2009-0819-4565-A1 4 28.h Econ – Environmental justice

EPA-HQ-OW-2009-0819-4565-A1 5 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4565-A1 6 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4565-A1 7 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4565-A1 8 8 FGD Wastewater EPA-HQ-OW-2009-0819-4565-A1 9 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4565-A1 13 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4565-A1 14 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4565-A1 15 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4565-A1 16 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4565-A1 17 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4565-A1 19 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA EPA-HQ-OW-2009-0819-4566-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4567-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4568-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4569-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4570-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4572-A1 1 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4572-A1 2 31.h Stats NL – Statistical Method used to Calculate the Limits

EPA-HQ-OW-2009-0819-4572-A1 3 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4572-A1 4 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4572-A1 5 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4572-A1 6 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4572-A1 7 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4572-A1 8 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4572-A1 9 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4572-A1 11 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4573-A1 1 6 Regulatory Options

EPA-HQ-OW-2009-0819-4573-A1 2 6.g.iii Metal cleaning wastes (MCW); chemical metal cleaning wastesEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4573-A1 3 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4573-A1 4 16.a Zero Discharge Bottom Ash – Demonstration/Performance

EPA-HQ-OW-2009-0819-4573-A1 5 15.c BA Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4573-A1 6 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4573-A1 7 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4573-A1 8 8 FGD Wastewater EPA-HQ-OW-2009-0819-4573-A1 9 6.j.ii Support BPJ

EPA-HQ-OW-2009-0819-4573-A1 10 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4573-A1 11 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423

EPA-HQ-OW-2009-0819-4573-A1 12 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4573-A1 13 2 Legal Authority

EPA-HQ-OW-2009-0819-4573-A1 14 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4573-A1 15 6 Regulatory Options

EPA-HQ-OW-2009-0819-4573-A1 16 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4573-A1 17 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4573-A1 18 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4573-A1 19 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4573-A1 20 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4573-A1 21 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4573-A1 22 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4573-A1 23 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4573-A1 24 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4573-A1 25 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4573-A1 26 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4574-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4576-A1 1 28.j Econ – EOs 12866 and 13563

EPA-HQ-OW-2009-0819-4576-A1 2 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA EPA-HQ-OW-2009-0819-4576-A1 3 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4576-A1 4 8 FGD Wastewater EPA-HQ-OW-2009-0819-4576-A1 5 5.c Scope and Applicability – ThresholdEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4576-A1 6 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4576-A1 7 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4576-A1 8 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4576-A1 9 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4576-A1 10 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4576-A1 11 28.f Econ – Electricity rate and household impacts EPA-HQ-OW-2009-0819-4577-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4578-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4579-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4581-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4582-A1 1 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4582-A1 2 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4582-A1 3 22.c NMCW – Wastewater Characterization EPA-HQ-OW-2009-0819-4582-A1 4 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4582-A1 5 2 Legal Authority EPA-HQ-OW-2009-0819-4582-A1 6 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4582-A1 7 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4582-A1 8 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4583-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4584-A1 1 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4584-A1 2 6.i.ii Support Option 1 EPA-HQ-OW-2009-0819-4584-A1 3 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4584-A1 4 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4584-A1 5 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4584-A1 6 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4584-A1 7 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4584-A1 8 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4584-A1 9 11.d FGD VCE – NWQI EPA-HQ-OW-2009-0819-4584-A1 10 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4584-A1 11 6.g.vii New source EPA-HQ-OW-2009-0819-4584-A1 12 6.g.vii New source EPA-HQ-OW-2009-0819-4584-A1 13 6.g Regulatory Options - Definitions EPA-HQ-OW-2009-0819-4584-A1 14 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4586-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4587-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4588-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4590-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4591-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4592-A2 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4592-A2 2 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4593-A1 1 10.a FGD Bio – Demonstration/PerformanceEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4593-A1 2 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4593-A1 3 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4593-A1 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4593-A1 5 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4593-A1 6 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-4593-A1 7 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4593-A1 8 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4593-A1 9 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4593-A1 10 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4593-A1 11 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4593-A1 12 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4593-A1 13 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4595-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4596-A1 1 25.b.vi EA Impacts – Other Impacts/Exposure Pathway EPA-HQ-OW-2009-0819-4597-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4598-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4599-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4600-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4601-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4602-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4603-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4604-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4605-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4606-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4606-A1 2 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4606-A1 3 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4607-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4607-A1 2 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4607-A1 3 1.b General – Against Rulemaking

EPA-HQ-OW-2009-0819-4607-A1 4 5.b Scope and Applicability – Subcategorization EPA-HQ-OW-2009-0819-4607-A1 5 8 FGD Wastewater EPA-HQ-OW-2009-0819-4607-A1 6 8.c FGD – Wastewater Characterization

EPA-HQ-OW-2009-0819-4607-A1 8 31.a Engr NL – Selection of Facilities for FGD Wastewater EPA-HQ-OW-2009-0819-4607-A1 9 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4607-A1 10 31.a.ii Engr NL Select Facs for FGD – Chemical Precipitation followed by Biological Treatment EPA-HQ-OW-2009-0819-4607-A1 11 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4607-A1 12 31.h Stats NL – Statistical Method used to Calculate the LimitsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4607-A1 13 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4607-A1 14 8 FGD Wastewater EPA-HQ-OW-2009-0819-4607-A1 15 8 FGD Wastewater EPA-HQ-OW-2009-0819-4607-A1 16 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4607-A1 17 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4607-A1 18 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4607-A1 19 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4607-A1 20 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4607-A1 21 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4607-A1 22 15.b BA Transport Water – Profile

EPA-HQ-OW-2009-0819-4607-A1 23 15.c BA Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4607-A1 24 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4607-A1 25 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4607-A1 26 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4607-A1 27 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4607-A1 28 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4607-A1 29 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4607-A1 30 22.b NMCW – Profile

EPA-HQ-OW-2009-0819-4607-A1 31 6.g.ii Nonchemical metal cleaning wastes (NCMCW)

EPA-HQ-OW-2009-0819-4607-A1 32 26.c Regulatory Implementation – Legacy Waste

EPA-HQ-OW-2009-0819-4607-A1 33 5.b Scope and Applicability – Subcategorization EPA-HQ-OW-2009-0819-4607-A1 34 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4607-A1 35 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4607-A1 36 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4607-A1 37 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4607-A1 38 21.a FGMC – General/Scope EPA-HQ-OW-2009-0819-4607-A1 39 6.g.xiii Flue gas mercury control water (FGMC) EPA-HQ-OW-2009-0819-4607-A1 40 6 Regulatory Options

EPA-HQ-OW-2009-0819-4607-A1 41 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4607-A1 42 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4607-A1 43 3 Data EPA-HQ-OW-2009-0819-4607-A1 44 3 DataEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4607-A1 45 3 Data EPA-HQ-OW-2009-0819-4609-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4610-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4611-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4612-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4613-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4614-A1 1 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4614-A1 2 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4614-A1 3 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4614-A1 4 15.c BA Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4614-A1 5 5.b Scope and Applicability – Subcategorization EPA-HQ-OW-2009-0819-4614-A1 6 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4614-A1 7 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4614-A1 8 7 Industry Operations

EPA-HQ-OW-2009-0819-4614-A1 9 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4614-A1 10 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4614-A1 11 15.c BA Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4614-A1 12 17 Combined Ash Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4614-A1 13 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4614-A1 14 15.c BA Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4614-A1 15 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4614-A1 16 31.e Stats NL – Baseline Substitutions EPA-HQ-OW-2009-0819-4614-A1 17 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4614-A1 18 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4614-A1 19 25.d EA – Proximity Analysis

EPA-HQ-OW-2009-0819-4614-A1 20 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4614-A1 21 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater EPA-HQ-OW-2009-0819-4616-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4617-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4618-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4619-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4621-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4622-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4623-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4625-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4626-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4627-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4628-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4630-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4631-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4631-A1 2 6.i.i Support/oppose Zero Discharge EPA-HQ-OW-2009-0819-4631-A1 3 6.g.xviii Changing definitions

EPA-HQ-OW-2009-0819-4631-A1 4 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4631-A1 5 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4631-A1 6 6.g.xvii Blowdown EPA-HQ-OW-2009-0819-4631-A1 7 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4631-A1 8 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4631-A1 9 6.g.x FGD wastewater EPA-HQ-OW-2009-0819-4631-A1 10 8.c FGD – Wastewater Characterization

EPA-HQ-OW-2009-0819-4631-A1 11 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4631-A1 12 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4631-A1 13 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4631-A1 14 11.a FGD VCE – Demonstration/Performance

EPA-HQ-OW-2009-0819-4631-A1 15 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4631-A1 16 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4631-A1 17 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4631-A1 18 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4631-A1 19 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4631-A1 20 6.g.ix Bottom ash and boiler slag EPA-HQ-OW-2009-0819-4631-A1 21 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4631-A1 22 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4631-A1 23 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4631-A1 24 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4631-A1 25 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4631-A1 26 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4631-A1 27 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4631-A1 28 6.g.x FGD wastewater

EPA-HQ-OW-2009-0819-4631-A1 29 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4631-A1 30 9.c FGD CP – Pollutant Loadings EPA-HQ-OW-2009-0819-4631-A1 31 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4631-A1 32 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4631-A1 33 11.c FGD VCE – Pollutant Loadings

EPA-HQ-OW-2009-0819-4631-A1 34 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4631-A1 36 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4631-A1 37 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4631-A1 38 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4631-A1 39 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4631-A1 40 10 FGD Biological Treatment

EPA-HQ-OW-2009-0819-4631-A1 41 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4631-A1 42 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4631-A1 43 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4631-A1 44 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4631-A1 45 6.g.ix Bottom ash and boiler slag

EPA-HQ-OW-2009-0819-4631-A1 46 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4631-A1 47 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4631-A1 48 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4631-A1 49 18.b Leachate – Profile

EPA-HQ-OW-2009-0819-4631-A1 50 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4631-A1 51 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4631-A1 52 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4631-A1 54 6.g.ii Nonchemical metal cleaning wastes (NCMCW)

EPA-HQ-OW-2009-0819-4631-A1 55 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4631-A1 56 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4631-A1 57 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4631-A1 58 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4631-A1 59 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4632-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4632-A1 2 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4632-A1 3 27.e Coordination – ORCR/CCREffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4632-A1 4 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4632-A1 5 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4632-A1 6 6 Regulatory Options EPA-HQ-OW-2009-0819-4632-A1 7 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4632-A1 8 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4632-A1 9 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4632-A1 10 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4632-A1 11 1.a.i General Support

EPA-HQ-OW-2009-0819-4632-A1 12 25.c.ii EA Loadings – Loadings to Chesapeake Bay and Great Lakes Watersheds

EPA-HQ-OW-2009-0819-4632-A1 13 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4632-A1 14 25.h EA – Human Health Model EPA-HQ-OW-2009-0819-4632-A1 15 25.f EA – Water Quality Model EPA-HQ-OW-2009-0819-4632-A1 16 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-4632-A1 17 6.i.i Support/oppose Zero Discharge

EPA-HQ-OW-2009-0819-4632-A1 18 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4632-A1 19 6.i.vii Support/oppose Options 3/4a EPA-HQ-OW-2009-0819-4633-A1 4 6 Regulatory Options EPA-HQ-OW-2009-0819-4633-A1 5 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4633-A1 6 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4633-A1 7 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4633-A1 8 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4633-A1 9 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4633-A1 10 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4633-A1 11 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4633-A1 12 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4633-A1 13 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4633-A1 14 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4633-A1 15 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4633-A1 16 2 Legal Authority

EPA-HQ-OW-2009-0819-4633-A1 17 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4633-A1 18 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4633-A1 19 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4633-A1 20 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4633-A1 21 8 FGD Wastewater EPA-HQ-OW-2009-0819-4633-A1 22 6.g.x FGD wastewater EPA-HQ-OW-2009-0819-4633-A1 23 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4633-A1 24 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4633-A1 25 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4633-A1 26 10.a FGD Bio – Demonstration/PerformanceEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4633-A1 27 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4633-A1 28 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4633-A1 29 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4633-A1 30 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4633-A1 31 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4633-A1 32 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4633-A1 33 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4633-A1 34 9.a FGD CP – Demonstration/Performance EPA-HQ-OW-2009-0819-4633-A1 35 9.b FGD CP – Costs EPA-HQ-OW-2009-0819-4633-A1 36 9 FGD Chemical Precipitation

EPA-HQ-OW-2009-0819-4633-A1 37 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4633-A1 38 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4633-A1 39 2 Legal Authority

EPA-HQ-OW-2009-0819-4633-A1 40 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4633-A1 41 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4633-A1 42 8 FGD Wastewater EPA-HQ-OW-2009-0819-4633-A1 43 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4633-A1 44 6 Regulatory Options EPA-HQ-OW-2009-0819-4633-A1 45 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4633-A1 46 6.g.ix Bottom ash and boiler slag

EPA-HQ-OW-2009-0819-4633-A1 47 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4633-A1 48 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4633-A1 49 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4633-A1 50 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4633-A1 51 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4633-A1 52 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4633-A1 53 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4633-A1 54 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4633-A1 55 19 Leachate Chemical Precipitation EPA-HQ-OW-2009-0819-4633-A1 56 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4633-A1 57 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4633-A1 58 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4633-A1 59 2 Legal Authority EPA-HQ-OW-2009-0819-4633-A1 60 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4633-A1 61 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4633-A1 62 6.b Regulatory Options – EPA Pass-Through Analysis

EPA-HQ-OW-2009-0819-4633-A1 63 26.d Regulatory Implementation – Compliance MonitoringEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4633-A1 64 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4633-A1 65 32 Analytical Methods

EPA-HQ-OW-2009-0819-4633-A1 66 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-4633-A1 77 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4635-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4638-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4639-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4640-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4640-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4641-A1 1 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4641-A1 2 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4641-A1 3 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4641-A1 4 29.d Benefits – Water quality improvement nonuse benefits

EPA-HQ-OW-2009-0819-4641-A1 5 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4642-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4642-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4643-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4644-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4645-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4646-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4647-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4647-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4648-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4649-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4650-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4651-A2 3 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4651-A2 4 8 FGD Wastewater EPA-HQ-OW-2009-0819-4651-A2 5 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4652-A1 1 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4652-A1 2 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4652-A1 3 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4652-A1 4 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4652-A1 5 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4652-A1 6 6.g.vii New sourceEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4652-A1 7 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-4652-A1 8 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4652-A1 9 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4652-A1 10 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4652-A1 11 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4652-A1 12 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4652-A1 13 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4652-A1 14 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4652-A1 15 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4652-A1 16 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4652-A1 17 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4652-A1 18 6.g.vii New source

EPA-HQ-OW-2009-0819-4652-A1 19 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-4652-A1 20 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4652-A1 21 29.g Benefits – Benefits from avoided impoundment failures

EPA-HQ-OW-2009-0819-4652-A1 22 29.g Benefits – Benefits from avoided impoundment failures

EPA-HQ-OW-2009-0819-4652-A1 23 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-4652-A1 24 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4652-A1 25 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4652-A1 26 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4652-A1 27 6.g.vii New source

EPA-HQ-OW-2009-0819-4652-A1 28 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-4653-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4654-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4655 1 8 FGD Wastewater EPA-HQ-OW-2009-0819-4655 2 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4655 3 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4655 4 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4655 6 23 Gasification Wastewater

EPA-HQ-OW-2009-0819-4655 7 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4655 8 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4655 9 14 Dry Fly Ash HandlingEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4655 10 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4655 11 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 12 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4655 13 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-4655 14 8 FGD Wastewater EPA-HQ-OW-2009-0819-4655 15 6.i.i Support/oppose Zero Discharge EPA-HQ-OW-2009-0819-4655 16 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4655 17 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4655 18 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4655 19 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4655 20 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4655 21 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4655 22 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4655 23 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4655 24 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4655 25 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4655 26 15.a BA Transport Water – General/Scope EPA-HQ-OW-2009-0819-4655 27 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4655 28 6.g.ix Bottom ash and boiler slag

EPA-HQ-OW-2009-0819-4655 29 15.c BA Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4655 30 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4655 31 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4655 32 17 Combined Ash Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4655 33 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4655 34 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4655 38 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4655 39 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4655 40 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4655 41 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 42 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4655 43 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4655 44 32 Analytical MethodsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4655 45 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4655 46 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4655 47 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 48 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4655 49 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4655 50 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4655 51 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4655 52 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 53 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4655 54 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4655 55 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4655 56 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4655 57 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4655 58 16.c Zero Discharge Bottom Ash – Pollutant Loads EPA-HQ-OW-2009-0819-4655 59 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4655 60 15.d BA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 61 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4655 62 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4655 63 17 Combined Ash Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4655 64 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4655 65 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4655 66 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4655 67 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4655 68 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-4655 69 6.g.iv Transport water EPA-HQ-OW-2009-0819-4655 70 14 Dry Fly Ash Handling

EPA-HQ-OW-2009-0819-4655 71 13.d FA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 72 14.b Dry Fly Ash Handling – Costs EPA-HQ-OW-2009-0819-4655 73 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-4655 74 14.b Dry Fly Ash Handling – Costs

EPA-HQ-OW-2009-0819-4655 75 13.d FA Transport Water – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 76 14 Dry Fly Ash HandlingEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4655 77 14.e Dry Fly Ash Handling – Other Technology Options EPA-HQ-OW-2009-0819-4655 78 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4655 79 8 FGD Wastewater EPA-HQ-OW-2009-0819-4655 80 6.g.x FGD wastewater EPA-HQ-OW-2009-0819-4655 81 8.c FGD – Wastewater Characterization

EPA-HQ-OW-2009-0819-4655 82 31.a.i Engr NL Select Facs for FGD – Chemical Precipitation Treatment EPA-HQ-OW-2009-0819-4655 83 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4655 84 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4655 85 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4655 86 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4655 87 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 88 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 89 9.c FGD CP – Pollutant Loadings EPA-HQ-OW-2009-0819-4655 90 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4655 91 11.c FGD VCE – Pollutant Loadings EPA-HQ-OW-2009-0819-4655 92 8 FGD Wastewater EPA-HQ-OW-2009-0819-4655 93 8 FGD Wastewater EPA-HQ-OW-2009-0819-4655 94 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 95 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4655 96 32 Analytical Methods EPA-HQ-OW-2009-0819-4655 97 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 98 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4655 99 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4655 100 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 101 2 Legal Authority EPA-HQ-OW-2009-0819-4655 102 8 FGD Wastewater EPA-HQ-OW-2009-0819-4655 103 11.c FGD VCE – Pollutant Loadings EPA-HQ-OW-2009-0819-4655 104 8 FGD Wastewater EPA-HQ-OW-2009-0819-4655 105 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4655 106 5.b Scope and Applicability – Subcategorization EPA-HQ-OW-2009-0819-4655 107 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4655 108 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4655 109 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4655 110 11.d FGD VCE – NWQI EPA-HQ-OW-2009-0819-4655 111 11.d FGD VCE – NWQI EPA-HQ-OW-2009-0819-4655 112 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4655 113 11.d FGD VCE – NWQI EPA-HQ-OW-2009-0819-4655 114 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4655 115 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4655 116 11.b FGD VCE – CostsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4655 117 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4655 118 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4655 119 11.a FGD VCE – Demonstration/Performance

EPA-HQ-OW-2009-0819-4655 120 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4655 121 31 Numeric Limits

EPA-HQ-OW-2009-0819-4655 122 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4655 123 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4655 124 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4655 125 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 126 10 FGD Biological Treatment

EPA-HQ-OW-2009-0819-4655 127 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4655 128 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-4655 129 8 FGD Wastewater EPA-HQ-OW-2009-0819-4655 130 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4655 131 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4655 132 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4655 133 8 FGD Wastewater EPA-HQ-OW-2009-0819-4655 134 32 Analytical Methods

EPA-HQ-OW-2009-0819-4655 135 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4655 136 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4655 137 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4655 138 14.a Dry Fly Ash Handling – Demonstration/Performance EPA-HQ-OW-2009-0819-4655 140 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4655 141 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4655 142 18.a Leachate – General/Scope

EPA-HQ-OW-2009-0819-4655 143 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4655 144 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4655 145 19.b Leachate CP – Costs EPA-HQ-OW-2009-0819-4655 146 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4655 147 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4655 148 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4655 149 6.g.vii New source

EPA-HQ-OW-2009-0819-4655 150 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4655 151 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4655 152 26.b Regulatory Implementation – TimingEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4655 153 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4655 154 22 Nonchemical Metal Cleaning Wastes (NMCW) EPA-HQ-OW-2009-0819-4655 165 6.g.iv Transport water EPA-HQ-OW-2009-0819-4655 166 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4655 167 23 Gasification Wastewater EPA-HQ-OW-2009-0819-4655 168 6.g.vi Gasification wastewater EPA-HQ-OW-2009-0819-4655 169 23.b Gasification – Profile

EPA-HQ-OW-2009-0819-4655 170 31.d Stats NL – Selection of Data Within Facilities for Gasification Wastewater EPA-HQ-OW-2009-0819-4655 171 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-4655 172 23.c Gasification – Wastewater Characterization EPA-HQ-OW-2009-0819-4655 173 23 Gasification Wastewater EPA-HQ-OW-2009-0819-4655 174 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4655 175 21.a FGMC – General/Scope

EPA-HQ-OW-2009-0819-4655 176 6.b Regulatory Options – EPA Pass-Through Analysis

EPA-HQ-OW-2009-0819-4655 177 6.b Regulatory Options – EPA Pass-Through Analysis EPA-HQ-OW-2009-0819-4655 178 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4655 179 6.g.vii New source

EPA-HQ-OW-2009-0819-4655 180 6.b Regulatory Options – EPA Pass-Through Analysis

EPA-HQ-OW-2009-0819-4655 181 6.b Regulatory Options – EPA Pass-Through Analysis EPA-HQ-OW-2009-0819-4655 182 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4655 183 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4655 184 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4655 185 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4655 186 6 Regulatory Options

EPA-HQ-OW-2009-0819-4655 188 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4655 189 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4655 190 29.g Benefits – Benefits from avoided impoundment failures

EPA-HQ-OW-2009-0819-4655 191 13.c FA Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-4655 192 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4655 193 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4655 194 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655 195 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4655 196 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4655 197 29.b Benefits – Benefit analyses assumptionsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4655 198 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4655 199 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4655 200 25.f.i EA WQM – Methodology

EPA-HQ-OW-2009-0819-4655 201 29.d Benefits – Water quality improvement nonuse benefits EPA-HQ-OW-2009-0819-4655 202 25.g.i EA WLM – Methodology EPA-HQ-OW-2009-0819-4655 203 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-4655 204 29.h Benefits – Air-related benefits EPA-HQ-OW-2009-0819-4655 205 29.b Benefits – Benefit analyses assumptions EPA-HQ-OW-2009-0819-4655 206 29.b Benefits – Benefit analyses assumptions EPA-HQ-OW-2009-0819-4655 207 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-4655 208 25.h EA – Human Health Model EPA-HQ-OW-2009-0819-4655 209 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-4655 210 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4655 211 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4655 212 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4655 213 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4655 214 26.f Regulatory Implementation – Other

EPA-HQ-OW-2009-0819-4655 215 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4655 216 2 Legal Authority

EPA-HQ-OW-2009-0819-4655 217 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4655 218 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4655 219 2 Legal Authority EPA-HQ-OW-2009-0819-4655 220 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4655 221 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4655 222 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4655 223 27 Coordination with Other EPA Rules

EPA-HQ-OW-2009-0819-4655 224 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-4655 225 6 Regulatory Options EPA-HQ-OW-2009-0819-4655 226 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4655 229 6.b Regulatory Options – EPA Pass-Through Analysis

EPA-HQ-OW-2009-0819-4655 230 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-4655 231 29.c Benefits – Human health benefitsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4655 233 29.d Benefits – Water quality improvement nonuse benefits EPA-HQ-OW-2009-0819-4655 234 31 Numeric Limits

EPA-HQ-OW-2009-0819-4655 235 31.c.ii Stats NL Select Data for FGD – Chemical Precipitation followed by Biological Treatment EPA-HQ-OW-2009-0819-4655-A1 1 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4655-A1 2 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4655-A1 4 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4655-A18 1 31 Numeric Limits

EPA-HQ-OW-2009-0819-4655-A18 2 31.c.i Stats NL Select Data for FGD – Chemical Precipitation Treatment

EPA-HQ-OW-2009-0819-4655-A18 3 31.a.i Engr NL Select Facs for FGD – Chemical Precipitation Treatment

EPA-HQ-OW-2009-0819-4655-A18 4 31.c.ii Stats NL Select Data for FGD – Chemical Precipitation followed by Biological Treatment

EPA-HQ-OW-2009-0819-4655-A18 5 31.c.i Stats NL Select Data for FGD – Chemical Precipitation Treatment EPA-HQ-OW-2009-0819-4655-A18 6 31.e Stats NL – Baseline Substitutions

EPA-HQ-OW-2009-0819-4655-A18 8 31.h.ii Calculation of the Serial Correlation (Autocorrelation)

EPA-HQ-OW-2009-0819-4655-A18 10 31.h Stats NL – Statistical Method used to Calculate the Limits

EPA-HQ-OW-2009-0819-4655-A18 11 31.h Stats NL – Statistical Method used to Calculate the Limits

EPA-HQ-OW-2009-0819-4655-A18 12 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4655-A18 13 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater EPA-HQ-OW-2009-0819-4655-A18 14 31 Numeric Limits

EPA-HQ-OW-2009-0819-4655-A18 15 31.h.i Stats NL Stat Method Used – Comments on Appendix B

EPA-HQ-OW-2009-0819-4655-A18 16 31.h.ii Calculation of the Serial Correlation (Autocorrelation)

EPA-HQ-OW-2009-0819-4655-A18 17 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4655-A18 18 31.a.i Engr NL Select Facs for FGD – Chemical Precipitation Treatment

EPA-HQ-OW-2009-0819-4655-A18 19 31.c.ii Stats NL Select Data for FGD – Chemical Precipitation followed by Biological Treatment

EPA-HQ-OW-2009-0819-4655-A18 20 31.h.ii Calculation of the Serial Correlation (Autocorrelation)Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4655-A18 21 31.h.ii Calculation of the Serial Correlation (Autocorrelation)

EPA-HQ-OW-2009-0819-4655-A18 23 31.h.ii Calculation of the Serial Correlation (Autocorrelation)

EPA-HQ-OW-2009-0819-4655-A18 24 31.h.ii Calculation of the Serial Correlation (Autocorrelation)

EPA-HQ-OW-2009-0819-4655-A18 25 31.h Stats NL – Statistical Method used to Calculate the Limits

EPA-HQ-OW-2009-0819-4655-A18 26 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4655-A18 27 31.a.i Engr NL Select Facs for FGD – Chemical Precipitation Treatment

EPA-HQ-OW-2009-0819-4655-A18 28 31.c Stats NL – Selection of Data Within Facilities for FGD Wastewater

EPA-HQ-OW-2009-0819-4655-A18 29 31.c Stats NL – Selection of Data Within Facilities for FGD Wastewater

EPA-HQ-OW-2009-0819-4655-A18 30 31.h Stats NL – Statistical Method used to Calculate the Limits

EPA-HQ-OW-2009-0819-4655-A18 31 31.h.ii Calculation of the Serial Correlation (Autocorrelation) EPA-HQ-OW-2009-0819-4655-A2 1 29.j Benefits – Total benefits

EPA-HQ-OW-2009-0819-4655-A2 2 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4655-A2 3 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4655-A2 4 25.f EA – Water Quality Model EPA-HQ-OW-2009-0819-4655-A2 5 25.g EA – Wildlife Model EPA-HQ-OW-2009-0819-4655-A2 6 25.h EA – Human Health Model EPA-HQ-OW-2009-0819-4655-A2 7 29.h Benefits – Air-related benefits EPA-HQ-OW-2009-0819-4655-A2 8 25.e EA – Overall Modeling Approach EPA-HQ-OW-2009-0819-4655-A2 9 29.b Benefits – Benefit analyses assumptions EPA-HQ-OW-2009-0819-4655-A2 10 25.e EA – Overall Modeling Approach EPA-HQ-OW-2009-0819-4655-A2 11 25.e EA – Overall Modeling Approach EPA-HQ-OW-2009-0819-4655-A2 12 29.j Benefits – Total benefits EPA-HQ-OW-2009-0819-4655-A2 13 29.b Benefits – Benefit analyses assumptions EPA-HQ-OW-2009-0819-4655-A2 14 25.e EA – Overall Modeling Approach

EPA-HQ-OW-2009-0819-4655-A2 15 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4655-A2 16 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4655-A2 17 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4655-A2 18 9.c FGD CP – Pollutant Loadings EPA-HQ-OW-2009-0819-4655-A2 19 10.c FGD Bio – Pollutant Loadings EPA-HQ-OW-2009-0819-4655-A2 20 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4655-A2 21 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4655-A2 22 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4655-A2 23 25.f.i EA WQM – MethodologyEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4655-A2 24 29.d Benefits – Water quality improvement nonuse benefits EPA-HQ-OW-2009-0819-4655-A2 25 25.g EA – Wildlife Model

EPA-HQ-OW-2009-0819-4655-A2 26 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4655-A2 27 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4655-A2 28 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-4655-A2 29 25.g.i EA WLM – Methodology EPA-HQ-OW-2009-0819-4655-A2 30 25.g.ii EA WLM – Validation/Calibration EPA-HQ-OW-2009-0819-4655-A2 31 25.h EA – Human Health Model EPA-HQ-OW-2009-0819-4655-A2 32 25.g.i EA WLM – Methodology EPA-HQ-OW-2009-0819-4655-A2 33 25.c EA – Loadings Analyses EPA-HQ-OW-2009-0819-4655-A2 34 25.h EA – Human Health Model EPA-HQ-OW-2009-0819-4655-A2 35 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-4655-A2 36 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-4655-A2 37 29.h Benefits – Air-related benefits

EPA-HQ-OW-2009-0819-4655-A2 38 29.g Benefits – Benefits from avoided impoundment failures

EPA-HQ-OW-2009-0819-4655-A2 40 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-4655-A2 41 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-4655-A2 42 28.c Econ – IPM

EPA-HQ-OW-2009-0819-4655-A26 1 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs

EPA-HQ-OW-2009-0819-4656-A2 1 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423

EPA-HQ-OW-2009-0819-4656-A2 2 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4656-A2 3 25.f.i EA WQM – Methodology

EPA-HQ-OW-2009-0819-4656-A2 4 29.g Benefits – Benefits from avoided impoundment failures

EPA-HQ-OW-2009-0819-4656-A2 5 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4656-A2 6 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4656-A2 7 29.d Benefits – Water quality improvement nonuse benefits EPA-HQ-OW-2009-0819-4657-A2 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4657-A6 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4657-A6 2 25.b.ii EA Impacts – Ground Water

EPA-HQ-OW-2009-0819-4657-A6 3 4.a Data Collection – 2009 Questionnaire for the Steam Electric Power Generating Effluent GuidelinesEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4657-A6 4 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4657-A6 5 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4657-A6 6 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4657-A6 7 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4657-A6 8 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4657-A6 9 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4657-A6 10 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4657-A7 1 25.b.ii EA Impacts – Ground Water EPA-HQ-OW-2009-0819-4657-A7 2 6.i.iii Support Option 5

EPA-HQ-OW-2009-0819-4658-A2 1 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4658-A2 2 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4658-A2 3 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4658-A2 4 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4658-A2 5 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4658-A2 6 6 Regulatory Options EPA-HQ-OW-2009-0819-4659-A2 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4659-A2 2 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4660-A2 1 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4660-A2 2 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4660-A2 3 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4660-A2 4 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4660-A2 5 6.g.xi FGD gypsum EPA-HQ-OW-2009-0819-4660-A2 6 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4660-A2 7 6.g.xi FGD gypsum

EPA-HQ-OW-2009-0819-4660-A2 8 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4662-A2 1 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4662-A2 2 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4662-A2 3 2 Legal Authority

EPA-HQ-OW-2009-0819-4662-A2 4 29.d Benefits – Water quality improvement nonuse benefits EPA-HQ-OW-2009-0819-4662-A2 5 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4662-A2 6 22.a NMCW – General/ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4662-A2 7 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4662-A2 8 2 Legal Authority

EPA-HQ-OW-2009-0819-4662-A2 9 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-4662-A2 10 29.d Benefits – Water quality improvement nonuse benefits EPA-HQ-OW-2009-0819-4663-A2 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4664-A2 1 27 Coordination with Other EPA Rules

EPA-HQ-OW-2009-0819-4664-A2 2 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4664-A2 3 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4664-A2 4 6.c Regulatory Options – Technology Versus Water Quality Based Limitations EPA-HQ-OW-2009-0819-4664-A2 5 6 Regulatory Options EPA-HQ-OW-2009-0819-4665-A2 1 6.i.v Support/oppose Option 3a/3b EPA-HQ-OW-2009-0819-4665-A2 3 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4665-A2 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4665-A2 5 8 FGD Wastewater EPA-HQ-OW-2009-0819-4665-A2 6 15.b BA Transport Water – Profile EPA-HQ-OW-2009-0819-4666-A2 1 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4666-A2 2 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4667-A2 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4667-A2 2 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4668-A2 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4668-A2 2 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4668-A2 3 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-4668-A2 4 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4668-A2 5 1.a.i General Support

EPA-HQ-OW-2009-0819-4669-A2 1 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4670-A2 1 5.c Scope and Applicability – Threshold

EPA-HQ-OW-2009-0819-4670-A2 2 5.b Scope and Applicability – Subcategorization

EPA-HQ-OW-2009-0819-4670-A2 3 5.b Scope and Applicability – Subcategorization

EPA-HQ-OW-2009-0819-4670-A2 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4670-A2 5 6.i.v Support/oppose Option 3a/3b EPA-HQ-OW-2009-0819-4670-A2 6 10.a FGD Bio – Demonstration/PerformanceEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4670-A2 7 16.a Zero Discharge Bottom Ash – Demonstration/Performance

EPA-HQ-OW-2009-0819-4670-A2 8 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4670-A2 9 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4670-A2 10 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4670-A2 11 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4670-A2 12 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4671-A2 1 1.a.i General Support EPA-HQ-OW-2009-0819-4671-A2 2 6.i.iii Support Option 5

EPA-HQ-OW-2009-0819-4671-A2 3 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4671-A2 4 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4671-A2 5 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4675-A27 1 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4677-A2 1 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4677-A2 2 6.g.ix Bottom ash and boiler slag EPA-HQ-OW-2009-0819-4677-A2 3 8.c FGD – Wastewater Characterization

EPA-HQ-OW-2009-0819-4677-A2 4 4.b Data Collection – Collection of Characterization Data

EPA-HQ-OW-2009-0819-4677-A2 5 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4677-A2 6 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4677-A2 7 6.g.ii Nonchemical metal cleaning wastes (NCMCW)

EPA-HQ-OW-2009-0819-4677-A2 8 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4677-A2 9 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4677-A2 10 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4677-A2 11 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-4677-A2 12 3 Data EPA-HQ-OW-2009-0819-4678-A2 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4679-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4680-A2 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4681-A2 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4681-A2 2 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4681-A2 3 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4681-A2 4 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4682-A2 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4683-A2 1 28.j Econ – EOs 12866 and 13563 EPA-HQ-OW-2009-0819-4683-A2 2 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4683-A2 3 6.i.ii Support Option 1 EPA-HQ-OW-2009-0819-4683-A2 4 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4683-A2 5 9 FGD Chemical PrecipitationEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4683-A2 6 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4683-A2 7 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4683-A2 8 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4683-A2 9 10 FGD Biological Treatment

EPA-HQ-OW-2009-0819-4683-A2 10 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-4683-A2 11 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4683-A2 12 13 Fly Ash Transport Water

EPA-HQ-OW-2009-0819-4683-A2 13 28.f Econ – Electricity rate and household impacts EPA-HQ-OW-2009-0819-4684-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4684-A1 2 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4684-A1 3 6 Regulatory Options EPA-HQ-OW-2009-0819-4684-A1 4 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-4684-A1 5 8 FGD Wastewater EPA-HQ-OW-2009-0819-4684-A1 6 8 FGD Wastewater EPA-HQ-OW-2009-0819-4684-A1 7 8 FGD Wastewater EPA-HQ-OW-2009-0819-4684-A1 8 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4684-A1 9 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4684-A1 10 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4684-A1 11 5.c Scope and Applicability – Threshold

EPA-HQ-OW-2009-0819-4684-A1 12 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4684-A1 13 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4684-A1 14 18.d Leachate – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4684-A1 15 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4684-A1 16 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-4684-A1 17 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 18 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4684-A1 19 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4684-A1 20 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4684-A1 21 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4684-A1 22 28.h Econ – Environmental justice

EPA-HQ-OW-2009-0819-4684-A1 23 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4684-A1 24 2 Legal Authority

EPA-HQ-OW-2009-0819-4684-A1 25 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-4684-A1 26 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4684-A1 27 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4684-A1 28 25.a.iii EA Scope – Evaluated PollutantsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4684-A1 29 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4684-A1 30 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4684-A1 31 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4684-A1 32 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4684-A1 33 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4684-A1 34 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4684-A1 35 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4684-A1 36 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-4684-A1 37 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4684-A1 38 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-4684-A1 39 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4684-A1 40 25.d EA – Proximity Analysis EPA-HQ-OW-2009-0819-4684-A1 41 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-4684-A1 42 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4684-A1 43 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 44 25.f EA – Water Quality Model EPA-HQ-OW-2009-0819-4684-A1 45 6 Regulatory Options EPA-HQ-OW-2009-0819-4684-A1 46 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-4684-A1 47 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 48 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 49 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 50 2 Legal Authority

EPA-HQ-OW-2009-0819-4684-A1 51 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4684-A1 52 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4684-A1 53 8 FGD Wastewater EPA-HQ-OW-2009-0819-4684-A1 54 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4684-A1 55 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4684-A1 56 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-4684-A1 57 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-4684-A1 58 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4684-A1 60 8 FGD Wastewater EPA-HQ-OW-2009-0819-4684-A1 61 11.d FGD VCE – NWQI EPA-HQ-OW-2009-0819-4684-A1 62 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4684-A1 64 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4684-A1 65 25.a.iii EA Scope – Evaluated Pollutants

EPA-HQ-OW-2009-0819-4684-A1 66 29.a Benefits – Analysis scope and benefit categories

EPA-HQ-OW-2009-0819-4684-A1 67 31.c.iii Stats NL Select Data for FGD – Chemical Precipitation followed by Vapor-Compression Evaporation Treatment

EPA-HQ-OW-2009-0819-4684-A1 68 31.a.iii Engr NL Select Facs for FGD – Chemical Precipitation followed by Vapor-Compression Evaporation TreatmentEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4684-A1 69 8 FGD Wastewater EPA-HQ-OW-2009-0819-4684-A1 70 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4684-A1 71 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4684-A1 72 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4684-A1 73 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4684-A1 74 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4684-A1 75 28.l Econ – Other comments EPA-HQ-OW-2009-0819-4684-A1 76 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 77 8 FGD Wastewater EPA-HQ-OW-2009-0819-4684-A1 78 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4684-A1 79 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4684-A1 80 8 FGD Wastewater EPA-HQ-OW-2009-0819-4684-A1 81 10.d FGD Bio – NWQI

EPA-HQ-OW-2009-0819-4684-A1 83 31.a.ii Engr NL Select Facs for FGD – Chemical Precipitation followed by Biological Treatment

EPA-HQ-OW-2009-0819-4684-A1 84 31.k Stats NL – Engineering Review of Limitations for FGD Wastewater

EPA-HQ-OW-2009-0819-4684-A1 85 31.a.ii Engr NL Select Facs for FGD – Chemical Precipitation followed by Biological Treatment EPA-HQ-OW-2009-0819-4684-A1 86 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4684-A1 87 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4684-A1 88 8 FGD Wastewater

EPA-HQ-OW-2009-0819-4684-A1 89 31.a.i Engr NL Select Facs for FGD – Chemical Precipitation Treatment EPA-HQ-OW-2009-0819-4684-A1 90 8 FGD Wastewater EPA-HQ-OW-2009-0819-4684-A1 91 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4684-A1 92 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4684-A1 93 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-4684-A1 94 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4684-A1 95 9.b FGD CP – Costs EPA-HQ-OW-2009-0819-4684-A1 96 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 97 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4684-A1 98 13 Fly Ash Transport Water

EPA-HQ-OW-2009-0819-4684-A1 99 14.a Dry Fly Ash Handling – Demonstration/Performance

EPA-HQ-OW-2009-0819-4684-A1 100 28.b Econ – Total costs and economic impact analyses assumptions EPA-HQ-OW-2009-0819-4684-A1 101 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4684-A1 102 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4684-A1 103 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4684-A1 104 16.b Zero Discharge Bottom Ash – CostsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4684-A1 105 28.b Econ – Total costs and economic impact analyses assumptions EPA-HQ-OW-2009-0819-4684-A1 106 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4684-A1 107 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4684-A1 108 28.b Econ – Total costs and economic impact analyses assumptions

EPA-HQ-OW-2009-0819-4684-A1 109 28.b Econ – Total costs and economic impact analyses assumptions EPA-HQ-OW-2009-0819-4684-A1 110 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4684-A1 111 16.e Zero Discharge Bottom Ash – Other Technology Options EPA-HQ-OW-2009-0819-4684-A1 112 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4684-A1 113 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4684-A1 114 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 115 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4684-A1 116 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4684-A1 117 5.c Scope and Applicability – Threshold

EPA-HQ-OW-2009-0819-4684-A1 118 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4684-A1 119 18.d Leachate – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4684-A1 120 18.d Leachate – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4684-A1 121 18.b Leachate – Profile EPA-HQ-OW-2009-0819-4684-A1 122 18.d Leachate – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4684-A1 123 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-4684-A1 124 18.c Leachate – Wastewater Characterization EPA-HQ-OW-2009-0819-4684-A1 125 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4684-A1 126 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4684-A1 127 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4684-A1 128 20.a Leachate Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4684-A1 129 20.b Leachate Bio – Costs EPA-HQ-OW-2009-0819-4684-A1 130 20 Leachate Biological Treatment

EPA-HQ-OW-2009-0819-4684-A1 131 18 Combustion Residual Landfill Leachate (Leachate)

EPA-HQ-OW-2009-0819-4684-A1 132 6.e Regulatory Options – Ponds/Impoundments Used for Treatment EPA-HQ-OW-2009-0819-4684-A1 133 18.a Leachate – General/Scope

EPA-HQ-OW-2009-0819-4684-A1 134 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-4684-A1 135 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 136 18.a Leachate – General/Scope

EPA-HQ-OW-2009-0819-4684-A1 137 21 Flue Gas Mercury Control (FGMC) WastewaterEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4684-A1 138 21.b FGMC – Profile EPA-HQ-OW-2009-0819-4684-A1 139 21.e FGMC – Treatment Technologies EPA-HQ-OW-2009-0819-4684-A1 141 23 Gasification Wastewater EPA-HQ-OW-2009-0819-4684-A1 142 21.d FGMC – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4684-A1 143 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4684-A1 144 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4684-A1 145 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4684-A1 146 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4684-A1 147 22.c NMCW – Wastewater Characterization EPA-HQ-OW-2009-0819-4684-A1 148 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4684-A1 149 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4684-A1 150 28.d Econ – Impacts on new plants EPA-HQ-OW-2009-0819-4684-A1 151 6 Regulatory Options EPA-HQ-OW-2009-0819-4684-A1 152 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 153 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 154 28.l Econ – Other comments EPA-HQ-OW-2009-0819-4684-A1 155 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 156 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4684-A1 157 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4684-A1 158 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4684-A1 159 2 Legal Authority EPA-HQ-OW-2009-0819-4684-A1 160 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 161 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 162 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 163 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 164 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4684-A1 165 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 166 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 167 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 168 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 169 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 170 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 171 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4684-A1 172 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4684-A1 173 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4684-A1 174 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4684-A1 175 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4684-A1 176 26.a Regulatory Implementation – Voluntary ProgramEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4684-A1 177 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4684-A1 178 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4684-A1 179 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4684-A1 180 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4684-A1 181 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4684-A1 182 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4684-A1 183 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4684-A1 184 26.c Regulatory Implementation – Legacy Waste

EPA-HQ-OW-2009-0819-4684-A1 185 26.c Regulatory Implementation – Legacy Waste

EPA-HQ-OW-2009-0819-4684-A1 186 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4684-A1 187 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 188 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4684-A1 189 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4684-A1 190 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4684-A1 191 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4684-A1 192 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4684-A1 193 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4684-A1 194 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4684-A1 195 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4684-A1 196 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4684-A1 197 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4684-A1 198 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-4684-A1 199 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4684-A1 200 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 201 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 202 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 203 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4684-A1 204 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-4684-A1 205 28.h Econ – Environmental justiceEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4684-A1 206 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-4684-A1 207 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-4684-A1 208 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-4684-A1 209 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-4684-A1 210 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-4684-A1 211 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-4684-A1 212 1.a.i General Support

EPA-HQ-OW-2009-0819-4684-A1 216 28.b Econ – Total costs and economic impact analyses assumptions

EPA-HQ-OW-2009-0819-4684-A1 217 28.b Econ – Total costs and economic impact analyses assumptions

EPA-HQ-OW-2009-0819-4684-A1 218 28.b Econ – Total costs and economic impact analyses assumptions EPA-HQ-OW-2009-0819-4684-A1 219 28.l Econ – Other comments EPA-HQ-OW-2009-0819-4684-A1 220 28.l Econ – Other comments EPA-HQ-OW-2009-0819-4684-A1 221 28.l Econ – Other comments EPA-HQ-OW-2009-0819-4684-A1 222 28.c Econ – IPM EPA-HQ-OW-2009-0819-4684-A1 223 28.l Econ – Other comments EPA-HQ-OW-2009-0819-4684-A1 224 29.b Benefits – Benefit analyses assumptions

EPA-HQ-OW-2009-0819-4684-A1 225 29.i Benefits – Benefits from reduced water withdrawals EPA-HQ-OW-2009-0819-4684-A1 226 23 Gasification Wastewater EPA-HQ-OW-2009-0819-4686-A1 1 2 Legal Authority

EPA-HQ-OW-2009-0819-4686-A1 2 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4686-A1 3 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-4686-A1 4 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4686-A1 5 1.a.i General Support EPA-HQ-OW-2009-0819-4686-A1 6 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4686-A1 7 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4686-A1 8 2 Legal Authority EPA-HQ-OW-2009-0819-4686-A1 9 28.l Econ – Other comments EPA-HQ-OW-2009-0819-4686-A1 10 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4686-A1 11 28.l Econ – Other comments EPA-HQ-OW-2009-0819-4686-A1 12 29.j Benefits – Total benefits

EPA-HQ-OW-2009-0819-4686-A1 13 29.a Benefits – Analysis scope and benefit categories

EPA-HQ-OW-2009-0819-4686-A1 14 29.a Benefits – Analysis scope and benefit categories

EPA-HQ-OW-2009-0819-4686-A1 15 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4686-A1 16 29.j Benefits – Total benefits

EPA-HQ-OW-2009-0819-4686-A1 17 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4686-A1 18 6.i.iv Support/oppose Options 4/5Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4686-A1 19 2 Legal Authority EPA-HQ-OW-2009-0819-4686-A1 20 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4686-A1 21 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-4686-A1 22 6 Regulatory Options EPA-HQ-OW-2009-0819-4686-A1 23 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4686-A1 24 6 Regulatory Options

EPA-HQ-OW-2009-0819-4686-A1 25 28.b Econ – Total costs and economic impact analyses assumptions EPA-HQ-OW-2009-0819-4686-A1 26 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-4686-A1 27 1.a.i General Support EPA-HQ-OW-2009-0819-4686-A1 28 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-4686-A1 29 6.i.iv Support/oppose Options 4/5 EPA-HQ-OW-2009-0819-4686-A1 30 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4686-A1 31 28.j Econ – EOs 12866 and 13563 EPA-HQ-OW-2009-0819-4686-A1 32 29.b Benefits – Benefit analyses assumptions EPA-HQ-OW-2009-0819-4686-A1 33 28.l Econ – Other comments EPA-HQ-OW-2009-0819-4686-A1 35 29.j Benefits – Total benefits

EPA-HQ-OW-2009-0819-4686-A1 36 29.g Benefits – Benefits from avoided impoundment failures

EPA-HQ-OW-2009-0819-4686-A1 37 29.g Benefits – Benefits from avoided impoundment failures EPA-HQ-OW-2009-0819-4686-A1 38 29.h Benefits – Air-related benefits

EPA-HQ-OW-2009-0819-4686-A1 39 29.d Benefits – Water quality improvement nonuse benefits EPA-HQ-OW-2009-0819-4686-A1 40 29.e Benefits – E&T species benefits EPA-HQ-OW-2009-0819-4686-A1 41 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-4686-A1 42 29.j Benefits – Total benefits

EPA-HQ-OW-2009-0819-4686-A1 43 29.d Benefits – Water quality improvement nonuse benefits EPA-HQ-OW-2009-0819-4686-A1 44 29.c Benefits – Human health benefits EPA-HQ-OW-2009-0819-4687-A10 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4687-A10 2 25.a.iii EA Scope – Evaluated Pollutants EPA-HQ-OW-2009-0819-4687-A10 3 25.b.iii EA Impacts – Sensitive Environments

EPA-HQ-OW-2009-0819-4687-A10 4 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4687-A10 5 21.b FGMC – Profile

EPA-HQ-OW-2009-0819-4687-A10 6 5.d Scope and Applicability – Wastestreams Regulated without Proposed Revisions to ELGs EPA-HQ-OW-2009-0819-4687-A10 7 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4702-A7 1 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4702-A7 2 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4702-A7 3 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4702-A7 4 12 FGD Other Treatment Technologies EPA-HQ-OW-2009-0819-4702-A7 5 10.a FGD Bio – Demonstration/PerformanceEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4702-A7 6 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4702-A7 7 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-4702-A7 8 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4702-A7 9 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4702-A7 10 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4703-A7 1 20.a Leachate Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4704-A1 3 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4704-A1 4 15.b BA Transport Water – Profile

EPA-HQ-OW-2009-0819-4704-A1 5 15.c BA Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-4704-A1 6 15.b BA Transport Water – Profile EPA-HQ-OW-2009-0819-4704-A1 7 6 Regulatory Options EPA-HQ-OW-2009-0819-4704-A1 9 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4704-A1 10 15.b BA Transport Water – Profile EPA-HQ-OW-2009-0819-4704-A1 11 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4704-A1 12 16.a Zero Discharge Bottom Ash – Demonstration/Performance

EPA-HQ-OW-2009-0819-4704-A1 13 16.e Zero Discharge Bottom Ash – Other Technology Options

EPA-HQ-OW-2009-0819-4704-A1 14 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4704-A1 15 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4704-A1 16 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4704-A1 17 16.e Zero Discharge Bottom Ash – Other Technology Options EPA-HQ-OW-2009-0819-4704-A1 18 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4704-A1 19 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-4704-A1 20 16 Zero Discharge Bottom Ash

EPA-HQ-OW-2009-0819-4704-A1 21 16.a Zero Discharge Bottom Ash – Demonstration/Performance EPA-HQ-OW-2009-0819-4704-A1 22 16.b Zero Discharge Bottom Ash – Costs

EPA-HQ-OW-2009-0819-4704-A1 23 16.e Zero Discharge Bottom Ash – Other Technology Options EPA-HQ-OW-2009-0819-4704-A1 24 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4704-A1 25 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4704-A1 26 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4704-A1 27 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4704-A1 28 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-4704-A1 29 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4704-A1 30 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4704-A1 31 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4704-A1 32 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-4723-A1 1 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4723-A2 1 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-4723-A2 2 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4724-A2 1 27 Coordination with Other EPA Rules

EPA-HQ-OW-2009-0819-4724-A2 2 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4724-A2 3 29.c Benefits – Human health benefits

EPA-HQ-OW-2009-0819-4724-A2 4 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4724-A2 5 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4724-A2 6 25.b.v EA Impacts – Human Health

EPA-HQ-OW-2009-0819-4724-A2 7 29.a Benefits – Analysis scope and benefit categories

EPA-HQ-OW-2009-0819-4724-A2 8 29.a Benefits – Analysis scope and benefit categories

EPA-HQ-OW-2009-0819-4724-A2 9 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-4761-A2 1 2 Legal Authority EPA-HQ-OW-2009-0819-4761-A2 2 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4764-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4765-A1 1 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423

EPA-HQ-OW-2009-0819-4765-A1 2 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4765-A1 3 14.b Dry Fly Ash Handling – Costs EPA-HQ-OW-2009-0819-4765-A1 4 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-4765-A1 5 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-4765-A1 6 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-4765-A1 7 22.c NMCW – Wastewater Characterization

EPA-HQ-OW-2009-0819-4765-A1 8 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4765-A1 9 26.e Regulatory Implementation – Net Credits

EPA-HQ-OW-2009-0819-4765-A1 10 6.e Regulatory Options – Ponds/Impoundments Used for Treatment

EPA-HQ-OW-2009-0819-4765-A1 11 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4765-A1 12 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-4765-A1 13 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4765-A1 14 6.g.i Combustion residual leachate (leachate)

EPA-HQ-OW-2009-0819-4765-A1 15 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4765-A1 16 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4767-A2 1 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4767-A2 2 15.a BA Transport Water – General/ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-4767-A2 5 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA EPA-HQ-OW-2009-0819-4767-A2 7 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4767-A2 8 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4767-A2 9 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4768-A2 1 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4768-A2 2 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-4768-A2 3 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-4768-A2 4 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4768-A2 5 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-4768-A2 6 26.c Regulatory Implementation – Legacy Waste EPA-HQ-OW-2009-0819-4768-A2 7 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4768-A2 8 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4768-A2 9 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4768-A2 10 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4768-A2 11 6.g.xiv Low volume waste EPA-HQ-OW-2009-0819-4768-A2 12 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-4768-A2 13 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-4768-A2 14 6.g.iv Transport water

EPA-HQ-OW-2009-0819-4768-A2 15 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-4768-A2 16 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4768-A2 17 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4768-A2 18 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4768-A2 19 8.c FGD – Wastewater Characterization

EPA-HQ-OW-2009-0819-4768-A2 20 26.c Regulatory Implementation – Legacy Waste

EPA-HQ-OW-2009-0819-4768-A2 21 15.d BA Transport Water – Calculation of Baseline Loads

EPA-HQ-OW-2009-0819-4768-A2 22 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4768-A2 23 3 Data EPA-HQ-OW-2009-0819-4770-A2 1 6.i.iv Support/oppose Options 4/5

EPA-HQ-OW-2009-0819-4770-A2 2 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-4770-A2 3 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4770-A2 4 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-4770-A2 5 19 Leachate Chemical Precipitation EPA-HQ-OW-2009-0819-4770-A2 6 22.b NMCW – Profile EPA-HQ-OW-2009-0819-4770-A2 7 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4770-A2 8 22.b NMCW – ProfileEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4770-A2 9 22.d NMCW – Treatment Technologies EPA-HQ-OW-2009-0819-4770-A2 10 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-4770-A2 11 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4770-A2 12 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4771-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4772-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-4773-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4773-A1 3 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4775-A1 1 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4775-A1 2 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4776-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4777-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4778-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4778-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4778-A1 3 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4779-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4780-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4782-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4783-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4784-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4785-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4786-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4787-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4789-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4790-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4791-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4792-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4793-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4794-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4795-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4795-A1 2 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4795-A1 3 1.a.i General Support EPA-HQ-OW-2009-0819-4796-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4797-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4798-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4799-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4800-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4801-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4802-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4803-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4804-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4805-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4806-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4806-A1 2 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4807-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4808-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4809-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4810-A1 1 20.a Leachate Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-4810-A1 2 3 Data EPA-HQ-OW-2009-0819-4811-A1 1 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4811-A1 2 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-4811-A1 3 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-4811-A1 4 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-4811-A1 5 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-4811-A1 6 28.j Econ – EOs 12866 and 13563 EPA-HQ-OW-2009-0819-4813-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4814-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4815-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4816-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4817-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4817-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4818-A1 1 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-4819-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4820-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4821-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4822-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4823-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4824-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4825-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4826-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4827-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4828-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4829-A1 1 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4830-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4831-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4832-A1 1 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-4833-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4834-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4835-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4836-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4837-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4838-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4839-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4840-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4840-A1 2 1.d General – Alternative FuelsEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4841-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4842-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4843-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4844-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4845-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4846-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4846-A1 2 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-4847-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4848-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4849-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4850-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4851-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4852-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4853-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4854-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4855-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4856-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4857-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4858-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4859-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4860-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4861-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4862-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4863-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4864-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4865-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4866-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4867-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4868-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4869-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4870-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4871-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4872-A1 1 1.a.ii Overly Generalized/Out-of-Scope

EPA-HQ-OW-2009-0819-4872-A1 2 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4872-A1 3 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4872-A1 4 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-4873-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4874-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4875-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4876-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4877-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4877-A1 2 25.b.vi EA Impacts – Other Impacts/Exposure PathwayEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4878-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4879-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4880-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4881-A1 1 25.c EA – Loadings Analyses

EPA-HQ-OW-2009-0819-4882-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-4882-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4883-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4884-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4885-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4886-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4886-A1 2 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-4887-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4888-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4889-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4890-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4891-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4892-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4893-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4894-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4895-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4896-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4898-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4899-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4900-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4901-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4902-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4903-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4904-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4905-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4906-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4907-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4908-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4909-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4910-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4911-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4912-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4913-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4914-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4915-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4916-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4917-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4918-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4919-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4920-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4921-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4922-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4923-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4924-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4924-A1 2 25.b.vi EA Impacts – Other Impacts/Exposure Pathway EPA-HQ-OW-2009-0819-4925-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4927-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4928-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4928-A1 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4929-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4930-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4931-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4932-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4933-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4934-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4935-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4936-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4937-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4938-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4938-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-4939-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4940-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4941-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4943-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4944-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4945-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4946-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4947-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4948-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4949-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4950-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4951-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4952-A1 1 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-4954-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4955-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4956-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4957-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4958-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4959-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4960-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4961-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4962-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4963-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4964-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4965-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4966-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4967-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4968-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4969-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4970-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4971-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4972-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4972-A1 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4973-A1 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-4974-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4975-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4976-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4977-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4978-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4979-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4980-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4981-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4982-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-4983-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4984-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-4985-A2 1 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4985-A2 2 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-4985-A2 3 2 Legal Authority

EPA-HQ-OW-2009-0819-4985-A2 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4985-A2 5 2 Legal Authority

EPA-HQ-OW-2009-0819-4985-A2 6 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4985-A2 7 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-4985-A2 8 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-4985-A2 9 6.g.xvi Zero discharge and no discharge EPA-HQ-OW-2009-0819-4985-A2 10 2 Legal Authority

EPA-HQ-OW-2009-0819-4985-A2 11 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-4987-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4988-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4989-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4990-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4991-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4992-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4993-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4993-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-4995-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-4996-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4997-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-4998-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-4999-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5000-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5001-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5002-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5003-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5004-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5005-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5007-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5008-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5009-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5010-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5011-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5011-A1 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5012-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5013-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5014-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5014-A1 2 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-5015-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5016-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5017-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5018-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5021-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5022-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5023-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5024-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5025-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5026-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5027-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5028-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5029-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5030-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5030-A1 2 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-5030-A1 3 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5031-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5032-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5033-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5034-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5035-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5036-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5037-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5038-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5039-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5040-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5041-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5042-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5043-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5044-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5045-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5046-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5047-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5048-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5048-A1 2 25.c EA – Loadings Analyses EPA-HQ-OW-2009-0819-5048-A1 3 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5049-A1 1 6.i.viii Support Options 4/4a EPA-HQ-OW-2009-0819-5049-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5050-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5051-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5052-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5053-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5054-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5055-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5056-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5057-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5058-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5058-A1 2 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-5058-A1 3 1.a.i General Support EPA-HQ-OW-2009-0819-5059-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5059-A1 2 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-5059-A1 3 1.a.i General Support EPA-HQ-OW-2009-0819-5060-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5061-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5062-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5063-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5064-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5065-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5066-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5067-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5068-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5069-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5070-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5071-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5072-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5073-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5073-A1 2 25.b.v EA Impacts – Human HealthEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5074-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5075-A1 1 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-5076-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5077-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5078-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5080-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5081-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5081-A1 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5082-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5083-A1 1 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-5083-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5084-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5084-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5084-A1 3 28.h Econ – Environmental justice EPA-HQ-OW-2009-0819-5085-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5086-A1 1 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-5088-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5089-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5090-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5091-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5092-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5093-A2 1 6 Regulatory Options EPA-HQ-OW-2009-0819-5093-A2 2 6 Regulatory Options EPA-HQ-OW-2009-0819-5093-A2 3 6 Regulatory Options EPA-HQ-OW-2009-0819-5093-A2 4 6 Regulatory Options EPA-HQ-OW-2009-0819-5093-A2 5 6.g.v Dry bottom ash handling system EPA-HQ-OW-2009-0819-5093-A2 6 6 Regulatory Options EPA-HQ-OW-2009-0819-5093-A2 7 6.g.v Dry bottom ash handling system EPA-HQ-OW-2009-0819-5093-A2 8 6 Regulatory Options

EPA-HQ-OW-2009-0819-5093-A2 9 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-5093-A2 10 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-5093-A2 11 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-5093-A2 12 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-5093-A2 13 6.g.v Dry bottom ash handling system EPA-HQ-OW-2009-0819-5093-A2 14 3 Data EPA-HQ-OW-2009-0819-5093-A2 15 6 Regulatory Options EPA-HQ-OW-2009-0819-5094-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5095-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5098-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5098-A1 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5098-A1 3 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5098-A1 4 27 Coordination with Other EPA RulesEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5099-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5101-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5102-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5103-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5104-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5105-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5105-A1 2 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-5107-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5108-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5111-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5112-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5113-A1 1 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-5114-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5115-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5116-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5117-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5118-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5119-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5120-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5121-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5122-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5123-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5123-A1 2 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5125-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5126-A1 1 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-5128-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5128-A1 2 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-5129-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5129-A1 2 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5130-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5131-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5132-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5133-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5133-A1 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5134-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5135-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5136-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5137-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5138-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5139-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5140-A2 1 28.j Econ – EOs 12866 and 13563Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-5140-A2 2 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA EPA-HQ-OW-2009-0819-5140-A2 3 6.i.ii Support Option 1 EPA-HQ-OW-2009-0819-5140-A2 4 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-5140-A2 5 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-5140-A2 6 8 FGD Wastewater EPA-HQ-OW-2009-0819-5140-A2 7 8 FGD Wastewater EPA-HQ-OW-2009-0819-5140-A2 8 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-5140-A2 9 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-5140-A2 10 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-5140-A2 11 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-5140-A2 12 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-5140-A2 13 8 FGD Wastewater EPA-HQ-OW-2009-0819-5140-A2 14 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-5140-A2 15 11.a FGD VCE – Demonstration/Performance

EPA-HQ-OW-2009-0819-5140-A2 16 28.f Econ – Electricity rate and household impacts

EPA-HQ-OW-2009-0819-5140-A2 17 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-5140-A2 18 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-5140-A2 19 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-5140-A2 20 6.i.ii Support Option 1

EPA-HQ-OW-2009-0819-5140-A2 21 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-5140-A2 22 8 FGD Wastewater EPA-HQ-OW-2009-0819-5140-A2 23 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-5140-A2 24 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-5140-A2 25 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-5140-A2 27 23 Gasification Wastewater

EPA-HQ-OW-2009-0819-5140-A2 28 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-5140-A2 29 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-5140-A2 30 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-5140-A2 31 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-5140-A2 32 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-5140-A2 33 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-5140-A2 34 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-5140-A2 35 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-5140-A2 36 8 FGD Wastewater EPA-HQ-OW-2009-0819-5140-A2 37 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-5140-A2 38 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-5140-A2 39 27.e Coordination – ORCR/CCREffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5140-A2 40 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-5140-A2 41 28.e Econ – Impacts on specific types of entities (small entities, government) / RFA and UMRA EPA-HQ-OW-2009-0819-5140-A2 42 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-5140-A2 43 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-5140-A2 44 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-5140-A2 45 15 Bottom Ash Transport Water EPA-HQ-OW-2009-0819-5140-A2 46 15.a BA Transport Water – General/Scope

EPA-HQ-OW-2009-0819-5140-A2 47 6.d Regulatory Options – NPDES Program Provisions EPA-HQ-OW-2009-0819-5140-A2 48 6.g.ix Bottom ash and boiler slag

EPA-HQ-OW-2009-0819-5140-A2 49 15.c BA Transport Water – Wastewater Characterization

EPA-HQ-OW-2009-0819-5140-A2 50 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-5140-A2 51 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-5140-A2 52 6.f Regulatory Options - General Methodology

EPA-HQ-OW-2009-0819-5140-A2 53 28.f Econ – Electricity rate and household impacts EPA-HQ-OW-2009-0819-5140-A2 54 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-5140-A2 55 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-5140-A2 56 16.b Zero Discharge Bottom Ash – Costs EPA-HQ-OW-2009-0819-5140-A2 57 8 FGD Wastewater EPA-HQ-OW-2009-0819-5140-A2 58 8.d FGD – Calculation of Baseline Loads EPA-HQ-OW-2009-0819-5140-A2 59 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-5140-A2 60 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-5140-A2 61 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-5140-A2 62 11.d FGD VCE – NWQI EPA-HQ-OW-2009-0819-5140-A2 63 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-5140-A2 64 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-5140-A2 65 8 FGD Wastewater EPA-HQ-OW-2009-0819-5140-A2 66 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-5140-A2 67 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-5140-A2 68 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-5140-A2 69 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-5140-A2 70 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-5140-A2 71 11.a FGD VCE – Demonstration/Performance EPA-HQ-OW-2009-0819-5140-A2 72 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-5140-A2 73 6.j.i Oppose BPJ EPA-HQ-OW-2009-0819-5140-A2 74 8 FGD Wastewater EPA-HQ-OW-2009-0819-5140-A2 75 13 Fly Ash Transport Water EPA-HQ-OW-2009-0819-5140-A2 76 14.b Dry Fly Ash Handling – Costs

EPA-HQ-OW-2009-0819-5140-A2 77 18 Combustion Residual Landfill Leachate (Leachate)Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5140-A2 78 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-5140-A2 79 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-5140-A2 80 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-5140-A2 81 6.g.i Combustion residual leachate (leachate) EPA-HQ-OW-2009-0819-5140-A2 82 6.g.vii New source EPA-HQ-OW-2009-0819-5140-A2 83 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-5140-A2 84 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-5140-A2 85 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-5140-A2 86 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-5140-A2 87 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-5140-A2 88 6.g.ii Nonchemical metal cleaning wastes (NCMCW) EPA-HQ-OW-2009-0819-5140-A2 89 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-5140-A2 90 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-5140-A2 91 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-5140-A2 92 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-5140-A2 93 26.a Regulatory Implementation – Voluntary Program

EPA-HQ-OW-2009-0819-5140-A2 94 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-5140-A2 95 6.i.ii Support Option 1 EPA-HQ-OW-2009-0819-5140-A2 96 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-5140-A2 97 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-5140-A2 98 8 FGD Wastewater EPA-HQ-OW-2009-0819-5140-A2 99 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-5140-A2 100 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-5140-A2 101 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-5140-A2 102 6.f Regulatory Options - General Methodology EPA-HQ-OW-2009-0819-5140-A2 103 8 FGD Wastewater EPA-HQ-OW-2009-0819-5140-A2 104 11.b FGD VCE – Costs EPA-HQ-OW-2009-0819-5140-A2 105 11.a FGD VCE – Demonstration/Performance

EPA-HQ-OW-2009-0819-5140-A2 106 28.f Econ – Electricity rate and household impacts

EPA-HQ-OW-2009-0819-5140-A2 107 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-5140-A2 108 28.a Econ – Plants/owners profile EPA-HQ-OW-2009-0819-5141-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5142-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5143-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5144-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5146-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5147-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5148-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5149-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5149-A1 2 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-5150-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5151-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5152-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5153-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5153-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5153-A1 3 1.a.i General Support EPA-HQ-OW-2009-0819-5155-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5156-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5157-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5158-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5159-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-5160-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5161-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5162-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5163-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5164-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5165-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5166-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5167-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5168-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5169-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5170-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5171-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5172-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5174-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5175-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5176-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5177-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5178-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5179-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5180-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5181-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5182-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5183-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5184-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5185-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5186-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5187-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5187-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5188-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5189-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5190-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5191-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5192-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5193-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5194-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5195-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5196-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5197-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5198-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5198-A1 2 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5199-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5200-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5201-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5202-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5203-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5204-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5205-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5205-A1 2 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5206-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5208-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5209-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5210-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5211-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5212-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5213-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5214-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5215-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5216-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5217-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5218-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5219-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-5220-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5221-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5222-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5223-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5223-A1 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5224-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5225-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5225-A1 2 26.f Regulatory Implementation – Other EPA-HQ-OW-2009-0819-5226-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5227-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5228-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5229-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5230-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5231-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5232-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5233-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5234-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5235-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5236-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5237-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5237-A1 2 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5237-A1 3 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5238-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5239-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5240-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5242-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5243-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5244-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5244-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5245-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5246-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5247-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5248-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5249-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5249-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5250-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5251-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5252-A1 1 6 Regulatory Options

EPA-HQ-OW-2009-0819-5253-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5254-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5254-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5255-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5256-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5257-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5258-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5259-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5259-A1 2 6.a Regulatory Options – Identification and Selection of Pollutants EPA-HQ-OW-2009-0819-5260-A1 1 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-5260-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5261-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5262-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5263-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5264-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5265-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5266-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5267-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5267-A1 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5268-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5269-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5270-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5271-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5272-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5273-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5274-A1 1 25.b EA – Environmental Impacts and Exposure Pathways

EPA-HQ-OW-2009-0819-5275-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5276-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5276-A1 2 5 Scope and Applicability EPA-HQ-OW-2009-0819-5277-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5278-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5278-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5279-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5281-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5282-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5283-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5284-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5285-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5286-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5287-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5288-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5289-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5289-A1 2 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-5290-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5291-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5292-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5293-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5294-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5295-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5296-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5297-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5298-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5299-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5300-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5301-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5302-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5302-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5303-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5304-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5304-A1 2 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-5305-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5306-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5307-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5308-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5308-A1 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5309-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5311-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5312-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5313-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5313-A1 2 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5314-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5315-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5316-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5317-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5318-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5319-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5320-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5321-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5322-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5323-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5324-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5325-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5326-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5327-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5328-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5329-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5330-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5331-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5332-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5333-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5335-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5336-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5337-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5338-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5339-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5340-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5341-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5342-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5343-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5344-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5345-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5346-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5347-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5348-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5349-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5350-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5351-A1 1 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-5352-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5352-A1 2 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-5353-A1 1 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-5354-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5355-A1 1 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-5356-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5357-A1 1 2 Legal Authority EPA-HQ-OW-2009-0819-5358-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5359-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5360-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5361-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5362-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5363-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5364-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5365-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5366-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5367-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5367-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5368-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5369-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5370-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5372-A1 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-5372-A1 2 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5374-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5375-A1 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-5375-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5376-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5377-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5379-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5380-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5381-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5381-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5382-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5383-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5384-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5385-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-5387-A1 1 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5388-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5390-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5391-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5392-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5393-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5394-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5395-A1 1 25.b.iii EA Impacts – Sensitive Environments EPA-HQ-OW-2009-0819-5395-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5396-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5397-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5398-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5399-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5401-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5402-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5403-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5404-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5405-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5406-A2 1 1.a.i General Support EPA-HQ-OW-2009-0819-5406-A2 2 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-5406-A2 3 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-5406-A2 4 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-5406-A2 5 1.c General – Steam Electric Record and Data Availability EPA-HQ-OW-2009-0819-5406-A2 6 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-5406-A2 7 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-5406-A2 8 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-5406-A2 9 8 FGD Wastewater

EPA-HQ-OW-2009-0819-5406-A2 10 11 FGD Vapor-Compression Evaporation System EPA-HQ-OW-2009-0819-5406-A2 11 22.a NMCW – General/Scope

EPA-HQ-OW-2009-0819-5406-A2 12 6.g.ii Nonchemical metal cleaning wastes (NCMCW)

EPA-HQ-OW-2009-0819-5406-A2 13 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-5406-A2 14 2 Legal Authority

EPA-HQ-OW-2009-0819-5406-A2 15 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-5406-A2 16 6.g.vii New source EPA-HQ-OW-2009-0819-5406-A2 17 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-5406-A2 18 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-5406-A2 19 1.c General – Steam Electric Record and Data Availability

EPA-HQ-OW-2009-0819-5407-A1 1 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5409-A1 1 25.b.i EA Impacts – Surface Water EPA-HQ-OW-2009-0819-5409-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5410-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5411-A1 1 1.a.ii Overly Generalized/Out-of-ScopeEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5412-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5414-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5415-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5417-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5420-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5421-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5422-A1 1 6.i.iii Support Option 5 EPA-HQ-OW-2009-0819-5423-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5424-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5425-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5426-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5426-A1 2 1.d General – Alternative Fuels EPA-HQ-OW-2009-0819-5428-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5429-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5430-A1 1 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-5431-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5433-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5434-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5435-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5436-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5437-A1 1 1.d General – Alternative Fuels

EPA-HQ-OW-2009-0819-5437-A1 2 25.b EA – Environmental Impacts and Exposure Pathways EPA-HQ-OW-2009-0819-5438-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5439-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5440-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5441-A1 1 25.b.iv EA Impacts – Wildlife EPA-HQ-OW-2009-0819-5442-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5443-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5444-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5445-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5446-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5448-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5449-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5451-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5452-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5453-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5453-A1 2 1.a.i General Support EPA-HQ-OW-2009-0819-5455-A1 1 25.b.v EA Impacts – Human Health EPA-HQ-OW-2009-0819-5456-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5457-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5458-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5459-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5460-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5461-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5462-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5463-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5464-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5465-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5466-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5467-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5468-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5469-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5470-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5471-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5472-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5473-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5474-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5475-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5476-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5477-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5478-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5479-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5480-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5481-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5482-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5483-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5484-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5485-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5486-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5487-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5488-A2 1 29.a Benefits – Analysis scope and benefit categories EPA-HQ-OW-2009-0819-5489-A2 1 23 Gasification Wastewater EPA-HQ-OW-2009-0819-5489-A2 7 23.a Gasification – General/Scope EPA-HQ-OW-2009-0819-5490-A2 1 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-5490-A2 2 22.b NMCW – Profile

EPA-HQ-OW-2009-0819-5490-A2 3 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-5491-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5492-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5493-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5494-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5495-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5496-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5497-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5498-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5499-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5500-A1 1 1.a.i General SupportEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description

EPA-HQ-OW-2009-0819-5501-A1 1 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code) EPA-HQ-OW-2009-0819-5502-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5503-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5504-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5505-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5506-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5507-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5508-A1 1 1.a.i General Support

EPA-HQ-OW-2009-0819-5509-A2 1 4.b Data Collection – Collection of Characterization Data EPA-HQ-OW-2009-0819-5509-A2 2 6.i.v Support/oppose Option 3a/3b EPA-HQ-OW-2009-0819-5509-A2 3 14 Dry Fly Ash Handling EPA-HQ-OW-2009-0819-5509-A2 4 16 Zero Discharge Bottom Ash EPA-HQ-OW-2009-0819-5509-A2 5 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-5509-A2 6 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-5509-A2 7 9 FGD Chemical Precipitation EPA-HQ-OW-2009-0819-5509-A2 8 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-5509-A2 9 19 Leachate Chemical Precipitation EPA-HQ-OW-2009-0819-5509-A2 10 22.a NMCW – General/Scope EPA-HQ-OW-2009-0819-5509-A2 11 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-5509-A2 12 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-5509-A2 13 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-5509-A2 14 6.g.vii New source EPA-HQ-OW-2009-0819-5509-A2 15 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-5509-A2 16 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-5510-A2 1 1.a.i General Support EPA-HQ-OW-2009-0819-5510-A2 2 1.a.i General Support EPA-HQ-OW-2009-0819-5510-A2 3 6 Regulatory Options EPA-HQ-OW-2009-0819-5510-A2 4 10 FGD Biological Treatment EPA-HQ-OW-2009-0819-5510-A2 5 10.a FGD Bio – Demonstration/Performance

EPA-HQ-OW-2009-0819-5510-A2 6 17 Combined Ash Transport Water – Wastewater Characterization EPA-HQ-OW-2009-0819-5510-A2 7 1.a.i General Support EPA-HQ-OW-2009-0819-5511-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5512-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5514-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5515-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5516-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5517-A2 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5517-A2 2 2 Legal Authority EPA-HQ-OW-2009-0819-5517-A2 3 27 Coordination with Other EPA Rules EPA-HQ-OW-2009-0819-5517-A2 5 6.i.ii Support Option 1 EPA-HQ-OW-2009-0819-5517-A2 6 9 FGD Chemical PrecipitationEffluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5517-A2 7 5.c Scope and Applicability – Threshold EPA-HQ-OW-2009-0819-5517-A2 8 8 FGD Wastewater EPA-HQ-OW-2009-0819-5517-A2 9 6.i.ii Support Option 1 EPA-HQ-OW-2009-0819-5517-A2 10 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-5517-A2 11 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-5517-A2 12 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-5517-A2 13 27.c Coordination – OAR/Mercury and Air Toxics Standards (MATS) EPA-HQ-OW-2009-0819-5518-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5519-A1 1 1.a.ii Overly Generalized/Out-of-Scope EPA-HQ-OW-2009-0819-5520-A1 1 1.a.i General Support EPA-HQ-OW-2009-0819-5550-A1 1 6.h Cost Effectiveness

EPA-HQ-OW-2009-0819-5550-A1 2 16.a Zero Discharge Bottom Ash – Demonstration/Performance

EPA-HQ-OW-2009-0819-5550-A1 3 22 Nonchemical Metal Cleaning Wastes (NMCW)

EPA-HQ-OW-2009-0819-5550-A1 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-5550-A1 5 27.e Coordination – ORCR/CCR EPA-HQ-OW-2009-0819-5550-A1 6 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-5550-A1 7 104 Comments on ORCR/CCR Rulemaking (Parking Lot Code)

EPA-HQ-OW-2009-0819-5550-A1 8 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-5550-A1 9 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-5552-A2 1 1.a.i General Support EPA-HQ-OW-2009-0819-5552-A2 2 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-5552-A2 3 6.h Cost Effectiveness EPA-HQ-OW-2009-0819-5552-A2 4 8.c FGD – Wastewater Characterization EPA-HQ-OW-2009-0819-5552-A2 5 8 FGD Wastewater EPA-HQ-OW-2009-0819-5552-A2 6 10.b FGD Bio – Costs EPA-HQ-OW-2009-0819-5552-A2 7 10.a FGD Bio – Demonstration/Performance EPA-HQ-OW-2009-0819-5552-A2 8 10.b FGD Bio – Costs

EPA-HQ-OW-2009-0819-5552-A2 9 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-5552-A2 10 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-5552-A2 11 26.d Regulatory Implementation – Compliance Monitoring

EPA-HQ-OW-2009-0819-5552-A2 12 18 Combustion Residual Landfill Leachate (Leachate) EPA-HQ-OW-2009-0819-5552-A2 13 18.a Leachate – General/Scope EPA-HQ-OW-2009-0819-5552-A2 14 6.g.vii New source

EPA-HQ-OW-2009-0819-5552-A2 15 22 Nonchemical Metal Cleaning Wastes (NMCW)Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category: EPA’s Response to Public Comments

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DCN Excerpt Number Comment Code Comment Code Description EPA-HQ-OW-2009-0819-5552-A2 16 27.e Coordination – ORCR/CCR

EPA-HQ-OW-2009-0819-5552-A2 17 26.a Regulatory Implementation – Voluntary Program EPA-HQ-OW-2009-0819-5552-A2 18 26.b Regulatory Implementation – Timing EPA-HQ-OW-2009-0819-5553-A2 1 1.a.i General Support EPA-HQ-OW-2009-0819-5553-A2 2 6.j.i Oppose BPJ

EPA-HQ-OW-2009-0819-5553-A2 3 6.a Regulatory Options – Identification and Selection of Pollutants

EPA-HQ-OW-2009-0819-5553-A2 4 26.d Regulatory Implementation – Compliance Monitoring EPA-HQ-OW-2009-0819-5553-A2 5 15 Bottom Ash Transport Water

EPA-HQ-OW-2009-0819-5553-A2 6 22 Nonchemical Metal Cleaning Wastes (NMCW)

EPA-HQ-OW-2009-0819-5553-A2 7 5.a Scope and Applicability – Facilities Subject to 40 CFR Part 423 EPA-HQ-OW-2009-0819-5553-A2 8 26.b Regulatory Implementation – Timing

EPA-HQ-OW-2009-0819-5553-A2 9 28.f Econ – Electricity rate and household impacts