# Sampling Episode Report

RRI Energy’s

Keystone Generating Station

Shelocta, PA

Sampling Episode 6563

Prepared for:



# U.S. Environmental Protection Agency

Engineering and Analysis Division

Office of Water

1200 Pennsylvania Avenue, NW

Washington, D.C. 20460

Prepared by:



# Eastern Research Group, Inc.

14555 Avion Parkway

Suite 200

Chantilly, VA 20151

13 December 2011

EPA Contract No. 68-C-02-095

Work Assignment 9-29

# i CONTENTS

Page

1. I NTRODUCTION 

# ................................................................................................................. 1-1

1.1 Background of Detailed Study ............................................................................. 1-1

1.2 Power Plant Site Selection ................................................................................... 1-1

1.3 Sampling Episode Overview................................................................................ 1-2

2. F ACILITY 

# O VERVIEW 

# ........................................................................................................ 2-1

2.1 FGD Scrubber System ......................................................................................... 2-1

2.2 FGD Wastewater Trea tment System ................................................................... 2-2

2.2.1 Physical/Chemical Separation ................................................................. 2-3

2.2.2 Sampling Points ....................................................................................... 2-4

3. S AMPLE 

# C OLLECTION 

# ....................................................................................................... 3-1

3.1 Sampling Points, Sample Collection Me thods, and Field Measurements ........... 3-1

3.1.1 Influent to FGD Wastewater Treatment System ...................................... 3-2

3.1.2 Effluent from FGD Wastewat er Treatment System ................................. 3-3

3.2 List of Analytes and Sample Preservation ........................................................... 3-6

3.3 Plant Operational Data ......................................................................................... 3-7

3.4 Deviations from the Sampling and Analysis Plan ............................................... 3-8

4. L ABORATORY 

# A NALYTICAL 

# R ESULTS AND 

# D ISCUSSION 

# ................................................... 4-1

4.1 Measured and Calculated Results for In fluent to FGD Wastewater Treatment

System Samples ................................................................................................... 4-1

4.2 FGD Wastewater Trea tment System ................................................................... 4-2

5. D ATA 

# Q UALITY 

# ................................................................................................................. 5-1

5.1 Analytical Quality Control ................................................................................... 5-1

5.2 Field Quality Control ........................................................................................... 5-1

5.2.1 Bottle Blanks ............................................................................................ 5-1

5.2.2 Equipment Blanks .................................................................................... 5-2

5.2.3 Field Blanks ............................................................................................. 5-2

5.2.4 Field Duplicates ....................................................................................... 5-3

6. R EFERENCES 

# ..................................................................................................................... 6-1

Appendix A: A NALYTICAL 

# R ESULTS



# Appendix B: D ATA 

# R EVIEW 

# N ARRATIVES



# Appendix C: P ICTURES 

# F ROM THE 

# S AMPLING 

# E PISODE

# ii LIST OF TABLES

Page

Table 3-1. Sample Collection Information, Keystone ................................................................. 3-9

Table 3-2. Sample Collection at Keystone ................................................................................ 3-11

Table 3-3. Field Measurements, Keystone ................................................................................ 3-12

Table 3-4. Crosswalk of Sample Number to Sampling Point and Day, Keystone .................... 3-13

Table 3-5. Analytical Me thods, Keystone ................................................................................. 3-14

Table 3-6. Summary of Sample Container and Planned Preservation, Keystone ...................... 3-15

Table 3-7. Sample Preservati on Summary, Keystone ............................................................... 3-16

Table 3-8. Generating Unit Operating Characteris tics during Sample Coll ection, Keystone ... 3-18

Table 3-9. FGD Scrubber System Operat ing Characteristics, Keystone ................................... 3-19

Table 3-10. Coal Usage during Samp le Collection, Keystone .................................................. 3-20

Table 3-11. Scrubber Slurry Information duri ng Sample Collection, Keystone Creek ............. 3-20

Table 3-12. FGD Wastewater Tr eatment System Operation Information, Keystone ................ 3-21

Table 4-1. Influent to FGD Wastewat er Treatment System, Keystone ...................................... 4-4

Table 4-2. Effluent from FGD Wastewater Treatmen t System, Keystone ................................. 4-7

Table 4-3. Classical Polluta nts 4-Day Average Data Summary for FGD Wastewater

Treatment System, Keystone ......................................................................................... 4-10

Table 4-4. Metals Pollutants 4-Day Aver age Data Summary fo r FGD Wastewater

Treatment System, Keystone ......................................................................................... 4-11

Table 5-1. Field Duplicate Re sults – Effluent fr om FGD Wastewater Treatment System,

Keystone ...................................................................................................................... .... 5-5

Table A-1. Biphasic Sample Results for Cla ssicals and Total metals, Influent to FGD

Wastewater Treatment System, Day 1 Analytical Results, Keystone ............................ A-1

Table A-2. Biphasic Sample Results for Classi cals and Total Metals, Influent to FGD

Wastewater Treatment System, Day 2 Analytical Results, Keystone ............................ A-3

Table A-3. Biphasic Sample Results for Cla ssicals and Total Meta ls, Influent to FGD

Wastewater Treatment System, Day 3 Analytical Results, Keystone ............................ A-5

# LIST OF TABLES (Continued)

Page

iii Table A-4. Biphasic Sample Results for Cla ssicals and Total Meta ls, Influent to FGD

Wastewater Treatment System, Day 4 Analytical Results, Keystone ............................ A-7

Table A-5. Influent to FGD Wastewater Treatment System, Day 1 Analytical Results,

Keystone ...................................................................................................................... ... A-9

Table A-6. Influent to FGD Wastewater Treatment System, Day 2 Analytical Results,

Keystone ...................................................................................................................... . A-15

Table A-7. Influent to FGD Wastewater Treatment System, Day 3 Analytical Results,

Keystone ...................................................................................................................... . A-21

Table A-8. Influent to FGD Wastewater Treatment System, Day 4 Analytical Results,

Keystone ...................................................................................................................... . A-27

Table A-9. Effluent from FG D Wastewater Treatment System, Day 1 Analytical Results,

Keystone ...................................................................................................................... . A-33

Table A-10. Effluent from FG D Wastewater Treatment System , Day 2 Analytical Results,

Keystone ...................................................................................................................... . A-36

Table A-11. Effluent from FG D Wastewater Treatment System , Day 3 Analytical Results,

Keystone ...................................................................................................................... . A-39

Table A-12. Effluent from FG D Wastewater Treatment System , Day 4 Analytical Results,

Keystone ...................................................................................................................... . A-42

Table A-13. Duplicate of Effluent from Wast ewater Treatment System, Day 2 Analytical

Results, Keystone .......................................................................................................... A- 45

Table A-14. Bottle Blank and Equipment Bl ank Analytical Data, Keystone ........................... A-48

Table A-15. Influent to FGD Wastewater Treatment System Field Blank, Day 1 Analytical

Results, Keystone .......................................................................................................... A- 53

Table A-16. Effluent from FGD Wastewater Treatment System Field Blank, Day 1

Analytical Results, Keystone ........................................................................................ A-55

Table A-17. Effluent from FG D Wastewater Treatment System , Day 2 Analytical Results,

Keystone ...................................................................................................................... . A-58

Table A-18. Effluent from FG D Wastewater Treatment System , Day 3 Analytical Results,

Keystone ...................................................................................................................... . A-59

Table A-19. Effluent from FG D Wastewater Treatment System , Day 4 Analytical Results,

Keystone ...................................................................................................................... . A-60

# iv LIST OF FIGURES

Page

Figure 2-1. Simplified Diagram of the FGD Wast ewater Treatment System, Keystone ............ 2-6

Figure 2-2. Detailed Diagram of the FGD Wast ewater Treatment System, Keystone ................ 2-7

Figure C-1. Sampler Working Inside a “Cleanbox” ....................................................................C-1

Figure C-2. Sample Tap and Tubing at the In fluent to the FGD Wastewater Treatment

System ........................................................................................................................ ......C-2

Figure C-3. Sample Collection Set- Up at the Pump-Off Station .................................................C-3

Figure C-4. Sample Collection Set-Up at the E ffluent from the FGD Wastewater Treatment

System ........................................................................................................................ ......C-4

# 1-1 1. I NTRODUCTION



# The Engineering and Analysis Division (EAD) of the U.S. Environmental Protection

Agency (EPA) is conducting a sampling program at steam electric power plants. The sampling

program will characterize raw wastewaters generate d by coal-fired steam electric power plants

and evaluate treatment technologi es and best management practic es used to reduce pollutant

discharges. This Sampling Episode Report (SER ) describes the sampling activities that took

place September 12-17, 2010, at RRI Energy’s Keyst one Generating Station (Keystone), located

in Shelocta, Pennsylvania (Sampling Episode 6563). The focus of Episode 6563 was to

characterize the purge stream entering the flue gas desulfurization (FGD) wastewater treatment

system and the effluent from the chemical precipitation system.

1.1 Background of Detailed Study

During EPA’s recently completed detailed study of the steam electric industry, EPA

identified metals and certain other constituents pr esent in the wastewater discharges from steam

electric power plants that substantially cont ribute to the toxic load ings for the industry.

Additionally, EPA determined that one of the wa ste streams contributing most of these toxic

loadings are associated with wet flue gas desu lfurization (FGD) systems present at coal-fired

power plants. Based on these findings, EPA ha s focused the sampling program on characterizing

the untreated FGD wastewaters a nd effluent quality from tec hnologies designed to treat the

wastewater.

1.2 Power Plant Site Selection

EPA selected steam electric plants for F GD wastewater sampling based on the process

configurations and characte ristics of the plants.

Keystone was selected by EPA for sampling ba sed on the following site characteristics:

 The plant is a coal-fired pow er plant that burns eastern bituminous coal in each of

its two generating units;

 The plant operates limestone forced oxidation wet FGD systems on both units;

 The plant operates a segregated FGD wastewater treatment system, which

includes the following steps:

— 

# Equalization,

— 

# Lime addition (pH adjustment/m etal hydroxide precipitation)

— 

# Organosulfide addition,

— 

# Ferric chloride addition,

— 

# Polymer addition,

— 

# Clarification,

— 

# Hydrochloric acid addition (pH adjustment),

— 

# Antiscalant addition,

— 

# Heat extraction (cooling), and

— 

# Filtration (sand filters and polishing filters); and

# 1-2  The plant operates selective catalytic reduction (SCR) systems on both generating

units.

1.3 Sampling Episode Overview

EPA and its technical contractor, Eastern Research Group, Inc. (ERG) conducted a oneday pre-sampling site visit at Keystone on Fe bruary 1, 2010 as part of the rulemaking. The

information collected during the pre- sampling site was used to create Sampling Plan, RRI

Energy’s Keystone Generating Station (Sampling Plan) [1], which describes the sample

collection procedures used during the sampling episode.

On Sunday, September 12, 2010, EPA arrived at Ke ystone to meet with plant personnel,

receive on-site safety training, review the sa mpling points, and determine the set-up for the

sample collection. EPA and ERG collected the samples specified in the Sampling Plan on

Monday through Friday (September 13–17, 2010). Th e following personnel participated in

EPA’s sample collection activities:

 

# Ron Jordan, EPA/EAD;

 

# Elizabeth Sabol, ERG;

 

# Becky Schwantes, ERG;

 

# Steve Strackbein, ERG;

 

# Kim Wagoner, ERG; and

 

# Jessica Wolford, ERG.

In addition, during the sample collection, EPA collected split sample s with the Utility

Water Act Group (UWAG). UWAG is a trade asso ciation for the electric power generating

industry. During the sampling episod e, UWAG acted as Keystone’s representative and collected

samples on behalf of the plant.

# 2-1 2. F ACILITY 

# O VERVIEW



# Keystone operates two steam el ectric units and each has a coal -fired boiler. Units 1 and 2,

which came on line in 1967 and 1968, respectively, each have a net capacity of 850 megawatts

(MW) (900 MW gross capacity). Both genera ting units burn eastern bituminous coal. The

Keystone plant and supporting facilities are located on approximately 1,000 acres in Shelocta,

Pennsylvania.

Keystone recently retrofitted both units with a wet FGD scr ubber system to control the

sulfur dioxide (SO 2 

# ) releases from the plant. The Unit 1 FGD system was installed in September

2009, and the Unit 2 FGD system was installed in November 2009. With the recent addition of

the FGD scrubber systems, Keystone also instal led an FGD wastewater treatment system to

control the discharges of the wastewater gene rated during the operation of the FGD scrubbers.

The FGD scrubber systems are discussed furthe r in Section 2.1 and the FGD wastewater

treatment system is discu ssed further in Section 2.2.

In 2003, Keystone retrofitted Units 1 and 2 with selective cata lytic reduction (SCR)

systems to control nitrogen oxide (NO

x 

# ) releases from the plant. In January 2009, Keystone

began operating the SCR systems year -round. Keystone also uses low NO

x 

# burners on Units 1

and 2, which were installed in 1994 and 1995 respectively, to control NO

x 

# releases from the

plant.

The electrostatic precipitators (ESPs) at Keys tone are particulate control devices that

remove the fly ash and other particulates from the flue gas. Keystone utilizes cold-side ESPs to

remove the fly ash from both units. The ESPs are designed to remove 99.5 percent of the fly ash

from the flue gas. The fly ash and other pa rticulates are collected in hoppers and are

pneumatically transferre d to fly ash silos.

Units 1 and 2 have the following configuration:

 Boiler;

 SCR system;

 Air heater;

 ESP; and

 FGD scrubber system.

2.1 FGD Scrubber System

Keystone operates two forced oxidation we t FGD scrubber systems (one per unit) to

control the emission of sulfur dioxide from the unit. The plant uses limestone slurry as the

sorbent for sulfur dioxide absorption. Limestone and service water are fed to on-site ball mills,

which pulverize the limestone to create the slurry. From the ball mills, the slurry is transferred to

hydrocyclones to collect limestone particles that are too large for use in the FGD system. The

underflow from the hydrocyclones is sent back to the ball mills for processing. The overflow

from the hydrocyclones, which ranges from 25 to 35 percent solids (by weight ), is transferred to

the limestone slurry storage tank and then used as fresh limestone slurry in the absorber.

The fresh limestone slurry is fed to the reac tion tank of the FGD systems where the slurry

is pumped to the various levels of the FGD scr ubbers with the recycle pumps. Both absorbers

# 2-2 have five spray levels, but the plant does not alwa ys operate all of them at the same time. The

slurry is pressurized and sprayed downward into the scrubber vessel through spray nozzles. As

the slurry falls downward and the flue gas flows counter-current to the sl urry, the spray droplets

of the limestone slurry contact the flue gas and absorb the SO 2 

# , which reacts with the limestone

particles and produces calcium sulfite. The spray droplets flow downward until they settle on the

tray, forming a layer of slurry that the flue gas must pass through to exit the FGD system. The

tray has small holes in it that allow the flue gas to bubble throu gh the limestone slurry layered on

the tray, which provides additiona l contact between the limestone slurry and the flue gas. The

spray droplets continue to flow downward in the scrubber until it re aches the reaction tank.

Keystone bubbles air through the reaction tank to oxidize the calcium sulfite to calcium sulfate

(i.e., gypsum).

Keystone intermittently blows down the gypsum slurry from the reaction tank to control

the solids and chlorides concentration in each of the scrubbers. Blowdown from a scrubber

occurs when the chlorides concentration is between 18,000 and 20,000 ppm and/or when the

solids level is between 18 and 22 percent. Keys tone transfers the blow down from the scrubber

absorber to the gypsum dewatering operations.

The scrubber blowdown is pumped to the pr imary hydrocyclones where the solid gypsum

is separated from the water by centrifugal force. Th e solid gypsum is forced outward to the walls

of the hydrocyclones and falls downward, while the water exits the top of the hydrocyclones.

The underflow from the primary hydrocyclones is transferred to the vacuum filter belts. The

overflow from the primary hydrocyclones is mon itored. If the chloride concentration in the

primary hydrocyclone overflow is less than 16,000 pp m, then the waste stream is recycled back

to the absorber. Otherwise, the overflow is tran sferred to a holding tank, and then pumped to the

secondary hydrocyclones. The underflow from th e secondary hydrocyclones is returned to the

absorber. The overflow from the secondary hydroc yclones is sent to the purge tank and then

pumped to the FGD wastewater treatment sy stem. The secondary hydrocyclone overflow is

never recycled back to the absorber.

Keystone washes the gypsum sent to the vac uum filter belts with service water, as the

gypsum is poured onto the belts. The vacuum filter belts dry the gypsum to a moisture content of

less than 10 percent. The chlori de concentration in the dry gypsum is less than 120 ppm.

Keystone transfers the gypsum to an on-site ash landfill for disposal. Fly ash, bottom ash, and

dewatered sludge from the FGD wastewater treatment plant are also sent to this landfill. The

landfill is lined and has a leachate collection syst em. The leachate collection system produces a

continuous waste stream. Although Keystone is atte mpting to market gypsum, the plant currently

has no prospective clients. Ke ystone produces approximately 2,000 tons of gypsum every day.

2.2 FGD Wastewater Treatment System

The FGD wastewater treatment system is de signed to receive intermittent transfers of

FGD wastewater from the purge tank, which contains secondary hydrocyclone overflow. The

daily (24 hour) average flow rate is 260 gallons per minute (gpm). The plant attempts to keep the

flow rate constant by staggering the operation of the scrubbers. Ho wever, the flow rate can range

from no flow (if neither scrubbe r is purging wastewater) up to 400-450 gpm if both scrubbers are

operating and sending wastewater to treatment. Th e design maximum flow rate for the treatment

system is 450 gpm.

# 2-3 Keystone operates the FGD wastewater tr eatment system 24 hours per day, 7 days per

week. The wastewater treatment system was installed to treat the FGD scrubber purge

wastewater to meet the plant’s permit limits, which includes limits for total suspended solids

(TSS), total selenium, oil and grease, BOD 5 

# , beryllium, copper, lead, mercury, silver,

temperature, and pH. Keystone’s FGD wastewat er treatment system contains the following

treatment operations:

 

# Equalization;

 

# Lime addition (pH adjustment/m etal hydroxide precipitation);

 

# Organosulfide addition;

 

# Ferric chloride addition;

 

# Polymer addition;

 

# Clarification;

 

# Hydrochloric acid addition (pH adjustment);

 

# Antiscalant addition;

 

# Heat extraction (cooling); and

 

# Filtration (sand filters and polishing filters).

Figures 2-1 and 2-2 located at the end of this section, presen t process flow diagrams of

the FGD wastewater treatment system, as well as the sampling locations for EPA’s sampling

episode. Figure 2-1 presents a simplified diag ram of the FGD wastewater treatment system.

Figure 2-2 presents a more complex diagram provi ding more detail on the chemical precipitation

treatment operations.

The secondary hydrocyclone overflow from the scrubbers is transfe rred to the purge tank

and then sent to the equalization tank at the start of the wastew ater treatment system. During the

sampling episode, the FGD influent wastewater was found to contain 2.0 to 5.5 percent solids,

had a pH between 6 and 7 S.U., and a temperat ure between 40 and 50 °C. The equalization tank

also receives wastewater from the wastewater treatment sump and e ffluent from the FGD

wastewater treatment system, which the plant recirculates to maintain a steady flow of

wastewater through the system.

2.2.1 Physical/Chemical Separation

From the equalization tank, the wastewater enters three reacti on tanks in series. First, the

wastewater flows into the desaturation tank, in which a lime slurry consisting of 10% lime is

added to encourage metal hydroxide precipitation a nd to increase the pH to between 8.0 and 8.5

S.U. The pH is optimal at this range because a higher pH would cause magnesium hydroxide to

precipitate. From the desaturati on tank, the wastewater flows to the heavy metals reaction tank

where organosulfide (TMT-15) is added. The wast ewater then flows to the flow splitter tank

where ferric chloride is added.

After the flow splitter tank, polym er is injected into the wa stewater as it flows to the

clarifiers. Keystone operates two solid contact clarifiers in para llel, which contain a sludge bed

that facilitates removal of the solids in the wa stewater. During the sampling episode, one of the

two clarifiers (clarifier B) had been draine d and was down for maintenance. On average,

approximately 65 percent of the sl udge from the clarifier is recy cled back to the desaturation

tank, while the remainder is transferred to a sl udge tank and then pumped to a filter press for

dewatering; however, the percent distribution varies throughout the day depending of the sludge

# 2-4 level in the clarifier. The dewatered sludge is sent to the on- site ash landfill. The filter press

filtrate is sent to the filtrate sump. All wastewater in the filtrate sump is recycled back to the

equalization tank.

The clarifier overflow is transferred to the heat exchanger feed tank. Hydrochloric acid

and an antiscalant are added to the wastewater as it is transferred to the heat exchangers. The

heat exchangers lower the te mperature of the wastewater from 120°F to 85-90°F. [QUESTION

FOR KEYSTONE: What are the materials of construction for the heat exchanger?]

From the heat exchangers, the wastewater is transferred to three continuous backwash

sand filters operating in parallel. The sand filters reduce the level of total suspended solids in the

wastewater. During the sampling episode, one of the three sand filters (sand filter C) was not in

operation. Backwash from the sand filters is transf erred to the wastewater treatment sump. After

the sand filters, the wastewater flow s by gravity to the effluent tank.

From the effluent tank, the wastewater is se nt to the polishing filters, which contain a

Teflon® media. The polishing filters are continuous backwash filters. Backwash from the filters

is sent to the filtrate sump. Wast ewater in the filtrate sump fl ows back to the equalization tank.

The FGD wastewater treatment system was origin ally designed such th at the plant could bypass

the polishing filters if the TSS level after the sa nd filters met the plant’s permit limit. However,

Keystone has found that using the polishing filte rs full time is necessary to keep the TSS

concentration below their permit limit, which is 10 mg/L (monthly average) and 20 mg/L (daily

maximum). Therefore, Keystone plans to use the polishing filters fu ll time even though the

design of their system allows them to skip th is final step. The hydraulic residence time of the

FGD wastewater treatment system ranges from 16 to 18 hours.

During the sampling episode, the polishing fi lters were replaced beginning on Monday,

September 13, 2010 at 1200. The work on the polishi ng filters (cartridge filters) was being done

to address plugging of the filters due to biological growth that was occurring in the gravity sand

filters (sand filters A and B). The problem was first identified on Monday, September 13, 2010,

because of an increase in the differential pressure across the filters leading to increased backflush

frequency. In order to eliminate the microbial growth in the sand filters, Keystone planned to

replace the polishing cartridge filters for the second time, bring sand filter C back into service,

and isolate and mechanically clean sand filters A and B, one at a time. During the sampling

episode, plant personnel did not know if or how th e effluent from the FG D wastewater treatment

samples would be affected by the work. [QUESTION FOR KEYSTONE: How did this

microbial growth affect the samples collected during the sampling episode? Has the plant

compared the split sample results to other efflue nt sampling results before and after the sampling

episode? If so, how do the sample results compare?]

2.2.2 Sampling Points

Figure 2-2 shows the sampling points for th e Keystone sampling episode; they are

summarized below:

 

# A sample of the purge stream entering the FGD wastewater treatment system

downstream of the purge tank and upstr eam of the equalization tank (i.e., the

sample was collected prior to any chem ical addition or mixing with recycle

streams); and

# 2-5  

# A sample of the effluent from the FGD wastewater treatment system after the

polishing filters, prior to discharge.

# 2-6Figure 2-1. Simplified Diagramof the FGD Wastewater Treatment System, Keystone

# 2-7Figure 2-2. Detailed Diagram of the FGDWastewater Treatment System, Keystone

# 3-1 3. S AMPLE 

# C OLLECTION



# During the Keystone sampling episode, th e sampling team followed the collection

protocols specified in the Sa mpling Plan. Section 3.1 describes the sampling points, sample

collection methods, and field measurements. Secti on 3.2 describes the list of analytes and the

sample preservation procedures. Section 3.3 discu sses the plant operational data collected during

the sampling episode. Finally, Section 3.4 discusse s any deviations from the planned sampling

activities.

3.1 Sampling Points, Sample Collectio n Methods, and Field Measurements

This section describes the sampling point s, sample collection methods, and field

measurements. Additional details are available in Section 3 of the Sampling Plan. Figures 2-1

and 2-2 of this report present flow diagrams of the plant’s wastewater treatment system,

including sampling point locations.

Table 3-1 lists the sampling points, sampli ng point descriptions, type of sample

collection, and sample collection dates and times. Table 3-2 list s the sampling point numbers and

descriptions, the number of samples collected, and the pollutant parameters for which the

samples were analyzed. Table 3-3 presents th e field measurement data collected from each

sampling point. Table 3-4 presents a crosswalk be tween the sample numbers used for laboratory

sample identification and the sample points for each day.

The sampling points for this episode were:

 

# SP-1 Influent to FGD Wastewater Treatment System;

 

# SP-2 Effluent from FGD Wast ewater Treatment System:

 

# SP-3 Duplicate of Effluent from FGD Wastewater Treatment System (SP-2);

 

# SP-4 Influent to FGD Wastewater Treatme nt System (SP-1) Field Blank; and

 

# SP-5 Effluent from FGD Wa stewater Treatment System (SP-2) Field Blank.

For all the sampling points, EPA collected spl it samples with Keystone’s representative

by inserting a “Y” splitte r into the sample tubing configurat ion at each sampling point to allow

for split sample collection. EPA collected all samples (other than mercury and cyanide) at all

sampling points as “true” splits (i.e., samp les for the same analyte were collected

simultaneously). The mercury and cyanide samples were collected directly from a sample tap;

therefore, for these samples, EPA and Keystone ’s representative collected duplicate samples,

with one filling the bottle im mediately after the other.

At each of the sampling points, EPA collected metals sample fractions following EPA

Method 1669 collection protocols. To collect these samples, EPA samplers donned Tyvek®

coveralls and dust masks (dust masks were worn until all mercury samples had been collected).

In addition, EPA set up a “cleanbox,” which consists of a portable plastic rectangular box with a

shallow lip and a flip-top lid th at secures itself ope n with clips. The “cleanbox” is double-bagged

with a clear inner bag, enclosed in a translu cent outer bag. The “cleanbo x” is handled using

“clean hands / dirty hands” techniques, where by the inner bag is ha ndled only by the “clean

hands” sampler. When the “cleanbox” is opened, the sampler is able to position his/her hands in

the box and pull the bag over the open ing of the box, but is still able to see the sample bottles and

# 3-2 tubing. The “cleanbox” minimizes potential at mospheric contamination during sample

collection. Figure C-1, in Appendix C, is a pictur e of a sampler working inside a “cleanbox.”

The metals sample bottles were also double-bagged. To collect the metals samples, EPA

placed the sample bottles (while still in its seal ed inner bag) into the “cleanbox” following the

protocols specified in Method 1669, also referred to as “clean hands / dirty hands” protocols.

Sampling staff filled the sample container, then cl osed the sample bottle lid and sealed the inner

bag as quickly as possible with in the “cleanbox.” The bagged sample bottles were then removed

from the “cleanbox” and placed into the outer bag following the “clean hands / dirty hands”

protocols.

3.1.1 Influent to FGD Wastewater Treatment System

The influent to FGD wastewater treatment syst em (SP-1) was collected from a sample tap

located on the wastewater piping downstream of the purge tank and upstream of the equalization

tank. Figure 2-2 identifies the sampling location for SP-1. This sample was collected as a grab

sample because, according to plant representatives, the wastewater characteristics of the purge to

the wastewater treatment system are fairly cons istent during the purge. In addition, due to the

relatively high concentration of suspended solids , the FGD purge was not amenable to collecting

representative split samples using composite sa mpling techniques. The sample tap was located

inside the FGD wastewater treatment building (see Figure 2-2 for the sampling location for SP1). Because the sampling point was located inside , there were no wind or rain concerns during

the sample collection.

On Day 1 only, prior to collecting the sample s at the influent to the FGD wastewater

treatment system (SP-1), the sampling team collected field blanks (SP-4) for total mercury, total

and dissolved metals, and dissolved hexavalent chromium. See Section 5 .2.3 for a description of

the field blank sample collection procedures at the influent to the FGD wastewater treatment

system.

To collect the wastewater samples at the influent to the FGD wastewater treatment

system, the samplers attached a 10-foot length of silicone tubing to the sample tap on the

wastewater piping. The end of th e silicone tubing was fitted w ith a “Y” splitter, with two

additional lengths of silicone tubi ng attached to the “Y” splitter. Figure C-2, in Appendix C, is a

picture of the sample tap at the influent to th e FGD wastewater treatment system. The samplers

attached the silicone tubing to the sample tap, opened the valve, and al lowed sample to flow

through the tubing for two minutes before beginning to fill sample containers. The samplers did

not close the valve until all samples were collect ed (except the dissolved metals samples).

The samplers collected the following samples using a “cleanbox,” as described in Section

3.1:

 

# Total and dissolved mercury;

 

# Total metals by 200.8; and

 

# Total metals by 200.7.

Samplers then filled a 10-liter container with sample to be pumped off later for collection

of dissolved metals sample fractions. After all samples were collected at the sampling point for

# 3-3 the day, the filled 10-liter container was transported to the staging area, put on ice, and then left

untouched to allow the solids in the wastewater to settle.

The sampling team collected an aliquot of sample for field testing. Sample pH and

temperature were measured immediately at the sa mpling point using four-color pH paper, a pH

meter, and a thermometer. Table 3-3 presents the field measurement data for the influent to the

FGD wastewater treatment system.

The samplers then filled containe rs for biochemical oxygen demand (BOD 5 

# ), Group I,

Group II, and total cyanide samples directly fr om the tubing without using a “cleanbox.” See

Table 3-6 for a list of Group I and Group II analytes. BOD 5 

# , Group I, Group II, and total cyanide

samples were immediately placed on ice after sa mple collection.

The total cyanide sample was immediately preserved. Lead acetate test strips and

potassium-iodide starch test stri ps were used to measure for su lfides and oxidants, respectively.

No sulfides or oxidants were detected during th e sampling episode. The samplers then preserved

the total cyanide sample with sodium hydroxide to a pH >10 S.U. and placed it on ice.

Samples for the dissolved metals analyses we re pumped from the previously filled 10-

liter container. The pump-off station consisted of a length of Teflon® tubing attached to a length

of silicone tubing, which was threaded through an ISCO peristaltic pump. The sampling team

attached a capsule filter to th e silicone tubing, which was a s hort distance downstream of the

pump. They then attached another short length of silicone tubing to the capsule filter effluent,

which was attached to a “Y” spli tter and two lengths of silicone tubing. This set-up allowed EPA

to collect “true” split samples w ith Keystone’s representatives. Figure C-3, in Appendix C, is a

picture of the set-up at the pump-off station.

The sampling team placed the end of the Teflon® tubing into the 10-lit er container filled

with wastewater from the influent to the FGD wastewater treatment system. By this time, the

solids in the wastewater had b een settling for approximately 80 to 100 minutes. Approximately

1.0 - 1.5 liters 1 

# of sample were pumped through the tubi ng/filter to purge the line before

collecting samples.

Samplers collected the following dissolved sa mples using a “cleanbox,” as described in

Section 3.1:

 

# Dissolved metals by 200.8;

 

# Dissolved metals by 200.7; and

 

# Dissolved hexavalent chromium.

Hexavalent chromium samples were immedi ately placed on ice after sample collection.

3.1.2 Effluent from FGD Wastewater Treatment System

The effluent from the FGD wastewater treatment system (SP-2) was collected

downstream of the polishing filters prior to discha rge. Keystone installed a three-way splitter on

the sample tap that had three separate taps to collect samples from the sampling point. The

1 

# On all sampling days, the filter/tubing was purged with 1.0 to 1.5 liters and there was no need to change the filter.

# 3-4 sample tap was located inside the FGD wastewat er treatment building (see Figure 2-2 for the

sampling location for SP-2). Because the sampling point was located inside, there were no wind

or rain concerns during the sample collection.

ERG collected the effluent from the FGD wastewater treatment system composite

samples using two automatic compositors which were programmed to collect individual sample

volumes into two 20-liter containers. The comp ositors were programmed to collect 830 mL

every hour during the 24-hour composite period. Following the composite period, ERG pumped

off the specific sample volumes into the individual sample containers.

ERG used one automatic compositor to collect sample volume for the metals analyses

(excluding mercury) and another automatic compos itor to collect sample volume for all classical

analytes (i.e., BOD 5 

# , Group I, and Group II, excluding cy anide). In addition to collecting

automatic composite samples for the analytes listed above, ERG collected total and dissolved

mercury grab samples every six hours during ea ch compositing period. ERG also collected one

grab sample for cyanide during each compositing period.

On day 1 only, ERG collected field blank samp les (SP-5) for hexavalent chromium, total

and dissolved metals by 200.7, and total and di ssolved metals by 200.8. See Section 5.2.3 for a

description of the field blank sample collection procedures at the effluent from the FGD

wastewater treatment system.

Samplers set up the compositors by attaching tw o T-splitter tubing sets to two of the taps

on the three-way splitter. The T-splitter tubing set consisted of three silicone tubes attached to a

T-splitter. The tubing configura tion was set up such that one e nd was connected to the sample

tap, one end was threaded through the automatic compositor, and connected to the large

composite container, and one end was placed next to a sump/drain near the sampling point. The

samplers attached the silicone tubing to the samp le tap, opened the valve, and allowed sample to

flow through both sets of tubing before calibrati ng either of the automatic compositors. This

ensured that the flow through the tubing during calibration would be the expected flow through

the tubing during sample collection. The automatic compositors were calibrated such that they

collected 830 mL every hour, so that the project ed complete volume would be 20 liters. After

calibration, the tubing was attached to a vented cap on a 20-liter composite container. The

sample tap was left open during the entire sample collection time period a nd flowed directly to

the sump/drain. The automatic compositor pulled sa mple from the flowing stream as dictated by

the sampling program and was capable of purging th e line back to the flowing stream between

each individual sample aliquot.

Both 20-liter composite containers were placed into plastic trash cans, and maintained on

ice for the entire 24-hour compositing period. A plas tic bag was placed on t op of the trash cans

to minimize contamination. Figure C-4, in Appendix C, is a picture of the composite sampling

set-up at the effluent from the F GD wastewater treatment system.

Immediately after setting up the compositors, ERG collected the first set of the total and

dissolved mercury grab samples. At the first gr ab sample every day, ERG collected field blanks

for total mercury samples. See Section 5.2.3 for a de scription of the field blank sample collection

procedures at the effluent from the FGD wastewater treatment system.

# 3-5 For mercury collection, samplers shrouded one of the three taps on the three-way splitter

(the other two taps were being used by the two compositors) with a clean plastic bag by

puncturing a hole in the bottom of the bag with the end of the tap and then securing it to the tap

with a ziptie. After purging the ta p for two minutes, the samples were collected directly from the

tap into the sample bottles. Becau se total mercury and dissolved mercury samples were collected

directly from the tap, ERG was not able to collec t split samples with Keystone’s representatives;

therefore, duplicate samples were collected. ER G collected another set of total and dissolved

mercury samples every six hours thereafter over the 24-hour period. The plastic shroud was

replaced for each set of mercury grab samples. After collecting each set of mercury grabs, ERG

filled a field test bottle and tested for pH and temperature using four-colored pH paper, a pH

meter, and a thermometer. Table 3-3 presents th e field measurement data for the effluent from

the FGD wastewater treatment system.

After the collection of the thir d set of mercury grabs, ERG collected a total cyanide grab

sample from the same tap on the three-way splitt er that was used for mercury sample collection.

Because total cyanide samples were collected directly from the ta p, ERG was not able to collect

split samples with Keystone’s representatives; therefore, duplicate samples were collected. The

total cyanide sample was immediately preserved with sodium hydroxide to a pH >10 S.U. and

placed on ice. Lead acetate test strips and potas sium-iodide starch test strips were used to

measure for sulfides and oxidants, respectively. No sulfides or oxidants were detected during this

sampling episode at the effluent from the FGD wastewater treatment system.

After the twenty-fourth aliquots were coll ected in the two composite containers, ERG

followed “clean hands / dirty hands” sampling tec hniques to disassemble the compositors from

the sampling set up. Closed caps were placed on th e two composite containers and the composite

containers were moved to the pump-off area wher e they remained on ice until individual sample

bottles were filled. The samplers then began setting up the compositors for the next day of

samples using new tubing sets and composite containers. The automatic compositor was

programmed to collect the same volum e on each day of sample collection.

After completing the set up for the next day of composite samples, the sampling team

transferred the wastewater coll ected in the 20-liter containe rs into the individual sample

containers at the pump-off area. For this samp ling point, ERG used a sample pump-off approach

to transfer the composite samples to the individual sample bottles. For this sample pump-off

procedure, the dissolved metals samples were collected before the total metals and classical

samples to prevent cross-contamination with in the tubing, which could lead to greater

concentrations in the dissolved metals fractions.

Samples for the dissolved and total metals analyses were pumped from one of the

previously filled 20-liter cont ainers. The pump-off station cons isted of a length of Teflon®

tubing attached to a length of silicone tubing, which was threaded throu gh an ISCO peristaltic

pump. The sampling team attached a capsule fi lter to the silicone t ubing, which was a short

distance downstream of the pump. They then attached another short length of silicone tubing to

the capsule filter effluent, which was attached to a “Y” splitter and two lengths of silicone

tubing. This set-up allowed EPA to collect “true” split samples with Keystone’s representatives.

Figure C-3, in Appendix C, is a picture of the set-up at the pump-off station.

On Day 1 only, prior to collec ting any samples of the efflue nt from the FGD wastewater

treatment system, the samplers collected a fiel d blank sample (SP-5) for dissolved and total

# 3-6 metals. See Section 5.2.3 for a description of the dissolved metals field blank sample collection

at the effluent from the FGD wastewater treatment system.

After collecting the field blank samples, the sampling team placed the end of the Teflon®

tubing into one of the 20-liter composite containers filled with wastewater from the effluent from

the FGD wastewater treatment system. After the tubing and filter were purged with 1-2 liters of

sample, samplers collected the following sample s using a “cleanbox,” as described in Section

3.1:

 

# Dissolved metals by 200.8;

 

# Dissolved metals by 200.7; and

 

# Dissolved hexavalent chromium.

Hexavalent chromium samples were immedi ately placed on ice after sample collection.

After the dissolved metals had been collected, the filter was removed. Once the tubing was

purged with 1-2 liters of sample, samplers coll ected the following samples using a “cleanbox,” as

described in Section 3.1:

 

# Total metals by 200.8; and

 

# Total metals by 200.7.

After the metal samples had been collected, the sampling team placed the end of the

Teflon® tubing into the other prev iously filled 20-liter contai ner. After the tubing was purged

with 1-2 liters of sample, samplers fille d containers for biochemical oxygen demand (BOD 5 

# ),

Group I, and Group II samples directly from the tubing without using a “cleanbox.” See Table 3-

6 for a list of Group I and Group II analytes. BOD 5 

# , Group I, and Group II samples were

immediately placed on ice af ter sample collection.

For all analytes, ERG collected QC samples at the effluent from the FGD wastewater

treatment system (SP-2) on Day 3 of the sampli ng episode; however, the cyanide QC sample was

collected on Day 4 because the QC sample collected on Day 3 was not preserved in the specified

time limit. In addition, for all analytes, ERG collect ed a duplicate sample of the effluent from

FGD wastewater treatment system (SP- 3) on Day 2 of the sampling episode.

3.2 List of Analytes and Sample Preservation

Samples collected at Keystone were an alyzed for the following pollutants:

 

# Classicals:

— Biochemical oxygen demand, 5-day (BOD 5 

# ),

— Chemical oxygen demand (COD),

— Total suspended solids (TSS),

— Total dissolved solids (TDS),

— Sulfate,

— Chloride,

— Total Kjeldahl nitrogen (TKN),

— Ammonia as nitrogen,

— Nitrate/nitrite as nitrogen,

— Total phosphorus,

# 3-7 — Total cyanide;

 

# Total Metals:

— 

# Aluminum, antimony, arsenic, barium, beryllium, boron, cadmium,

calcium, chromium, cobalt, copper , iron, lead, magnesium, manganese,

mercury, molybdenum, nickel, selenium, silver, sodium, thallium, tin,

titanium, vanadium, and zinc.

 

# Dissolved Metals:

— 

# Same parameters as listed for total metals, plus hexavalent chromium.

The analytes selected reflect the current understanding of coal-fired power plant air

pollution control wastewaters, in cluding contributions from coal , scrubber sorb ents, treatment

chemicals, and other sources. Table 3-5 lists the analytical methods used to determine pollutant

concentrations.

Table 3-6 lists the containers used for sample collection as well as the preservation

requirements for each sample. Table 3-7 summarizes the chemical preservation for each of the

samples that were preserved on site. The sampli ng team preserved samples in accordance with

procedures described in Section 3.4 of the Sampling Plan. Immediately following sample

collection, the samplers placed the BOD 5 

# , Group I, Group II, dissolved hexavalent chromium,

and total cyanide samples on ice to cool the samp les to <6°C. The sampling team also placed the

total and dissolved metals on ice to ensure all samples shipped together would stay cold. The

total and dissolved mercury samples were put on ice because they were shipped with the

hexavalent chromium samples. All dissolved me tals samples, except for mercury, were filtered

in the field. The hexavalent chromium samples we re preserved in the field, but all other metals

samples were acid-preserved prior to extracti on at the laboratory. The hexavalent chromium

samples were preserved with ammonium sulfat e buffer solution and ammonium hydroxide to a

pH between 9.3 and 9.5 S.U. The Group II samples were preserved with sulfuric acid to a pH of

<2 S.U. in the staging area, and the pH was c onfirmed with four-color pH strips. Each total

cyanide sample was tested for sulfides and oxidants immediately af ter sample collection.

Because sulfides and oxidants were not dete cted at any of the sampling points during the

sampling episode, the samplers did not need to dilu te the samples or add sodium arsenite to the

samples. After testing for sulfides and oxidants, the total cyanide samples were preserved with

sodium hydroxide to a pH >10 S.U. and placed on ice. During the preservation of the cyanide

QC sample at the effluent from the FGD wastewater treatment sy stem (SP-2) collected on day 3,

the samplers ran out of sodium hydroxide at th e sample point. Because the sampling staff was

unable to preserve the sample in time, the cyanide QC sample was re-collected on day 4.

3.3 Plant Operational Data

During the EPA sampling episode, Keystone pl ant personnel provided the sampling team

with operational data for each of the generating units and the F GD scrubber system, as well as

operational and flow data for the FGD wastewater treatment system. Tabl e 3-8 presents the unit

operating characteristics, Table 3-9 presents th e FGD scrubber system operating characteristics,

Table 3-10 presents information on the coal burned during the sampling episode, Table 3-11

presents information on the FGD scrubber slu rry generation during th e sampling episode, and

Table 3-12 presents the FGD wastewater tr eatment system operating characteristics.

# 3-8 3.4 Deviations from the Sampling and Analysis Plan

The sampling episode proceeded as specified in the Sampling Plan with the exceptions

described below:

 

# Preservation of hexavalent chromium: ERG planned to preserve the hexavalent

chromium samples to a pH between 9.3 and 9.7 S.U. using an ammonium sulfate

buffer solution; however, since the amm onium sulfate buffer solution was not

achieving the desired pH, the samplers added only 100 drops of ammonium

sulfate buffer solution, followed by as mu ch ammonium hydroxide as necessary

to reach the desired pH.

 

# Preservation of cyanide QC sample at SP-2 (Day 3): On day 3 of sample

collection at the effluent from the FG D wastewater treatment system (SP-2), ERG

planned to preserve the cyanide QC samp le to a pH greater than 10 S.U. using

sodium hydroxide; however, the sampling team ran out of sodium hydroxide at

the sample point and the sample was not preserved until one hour after collection.

EPA re-collected the cyanide QC sample on day 4.

 

# Cooling of total and dissolved meta ls sample at all sampling points: ERG had

not planned to cool the total and dissol ved metals samples on ice prior to the

shipping the samples to the laboratory; however, because some of the metals

samples were being shipped in the same coolers with the classicals samples,

which are required to be ke pt at <6°C, ERG iced the metals sample to prevent

them from raising the temperatur e in the cooler during shipment.

# 3-9 Table 3-1. Sample Collection Information, Keystone

Sampling

Point

Number Sampling Point Description Type of

Sample Sample Collection

Date Sample Collection Time

SP-1 Influent to FGD Wastewater

Treatment System – Day 1 Grab 9/13/10 0935 a 

# and 1124 b



# Influent to FGD Wastewater

Treatment System – Day 2 Grab 9/14/10 0950 a 

# and 1123 b



# Influent to FGD Wastewater

Treatment System – Day 3 Grab 9/15/10 0910 a 

# and 1053 b



# Influent to FGD Wastewater

Treatment System – Day 4 Grab 9/16/10 0904 a 

# and 1053 b



# SP-2 Effluent from FGD Wastewater

Treatment System – Day 1 Composite 9/13/10

9/14/10 0700 c



# 0753 d



# Grab 9/13/10

9/14/10 0716 e 

# , 1316 f 

# , and 1915 g



# 0115 h



# Effluent from FGD Wastewater

Treatment System – Day 2 Composite 9/14/10

9/15/10 0700 c



# 0748 d



# Grab 9/14/10

9/15/10 0715 e 

# , 1316 f 

# , and 1916 g



# 0114 h



# Effluent from FGD Wastewater

Treatment System – Day 3 Composite 9/15/10

9/16/10 0700 c



# 0743 d



# Grab 9/15/10

9/16/10 0718 e 

# , 1315 f 

# , and 1914 g



# 0115 h



# Effluent from FGD Wastewater

Treatment System – Day 4 Composite 9/16/10

9/17/10 0707 c



# 0641 d



# Grab 9/16/10

9/17/10 0720 e 

# , 1316 f 

# , and 1915 g



# 0115 h



# SP-3 Duplicate of Effluent from FGD

Wastewater Treatment System –

Day 2 Composite 9/14/10

9/15/10 0700 c



# 0748 d



# Grab 9/14/10

9/15/10 0716 e 

# , 1318 f 

# , and 1920 g



# 0116 h



# SP-4 Influent to FGD Wastewater

Treatment System Field Blank Grab 9/13/10 0916 i 

# and 1116 j



# SP-5 Effluent from FGD Wastewater

Treatment System Field Blank –

Day 1 Composite 9/13/10

9/14/10 0627 k



# 0740 l



# Grab 9/13/10 0710 m



# Effluent from FGD Wastewater

Treatment System Field Blank –

Day 2 Grab 9/14/10 0708 m



# Effluent from FGD Wastewater

Treatment System Field Blank –

Day 3 Grab 9/15/10 0712 m



# Effluent from FGD Wastewater

Treatment System Field Blank –

Day 4 Grab 9/16/10 0715 m

# 3-10 a 

# Start time for the collection of the total metals samples (total metals by 200.7, total metals by 200.8, total mercury,

and dissolved mercury) and classicals (BOD 5 

# , Group I, Group II, and total cyanide).

b 

# Start time for the collection of the dissolved metals samples (dissolved metals by 200.7, dissolved metals by 200.8,

and dissolved hexavalent chromium). Does not include dissolved mercury.

c 

# Started compositor.

d 

# Start time for the collection of dissolved metals samples (dissolved metals by 200.7, dissolved metals by 200.8,

and dissolved hexavalent chromium), total metals samples (total metals by 200.7 and total metals by 200.8), and

classicals (BOD 5 

# , Group I, and Group II).

e 

# Start time for the collection of the total and dissolved mercury Grab 1 samples.

f 

# Start time for the collection of the total and dissolved mercury Grab 2 samples.

g 

# Start time for the collection of the total and dissolved mercury Grab 3 and total cyanide samples.

h 

# Start time for the collection of the total and dissolved mercury Grab 4 samples.

i 

# Start time for the collection of total and dissolved mercury and total metals by 200.7 and total metals by 200.8 field

blank samples.

j 

# Start time for the collection of dissolved metals by 200.7 and dissolved metals by 200.8, and hexavalent chromium

field blank samples.

k 

# Filled 20L field blank carboy

l 

# Start time for the collection of total metals by 200.7 and total metals by 200.8 field blank samples and collection of

dissolved hexavalent chromium, dissolved metals by 200.7, and dissolved metals by 200.8 field blank samples.

m



# Start time for the collection of total mercury field blank samples.

# 3-11Table 3-2. Sample Collection at KeystoneSamplingPointNumberSampling Point Name Total Metals (EPA Method 200.8 with collision cell) Total Metals (EPA Method 200.7) Dissolved Metals (EPA Method 200.8 with collision cell) Dissolved Metals (EPA Method 200.7) Total Mercury Dissolved Mercury Hexavalent Chromium BOD 5 Group I

a Group II

b Total CyanideSP-1 Influent to the FGD WastewaterTreatment System4 4 4 4 4 4 4 4 4 4 4SP-2 Effluent from the FGD WastewaterTreatment System4+1QC 4+1QC 4+1QC 4+1QC 4+1QC4+1QC 4+1QC 4+1QC 4+1QC 4+1QC4+1QCSP-3 Field Duplicate of the Effluent fromFGD Wastewater Treatment System1 1 1 1 1 1 1 1 1 11SP-4 Influent to the FGD WastewaterTreatment System Field Blank1 1 1 1 1 1SP-5 Effluent from the FGD WastewaterTreatment System Field Blank1 1 1 1 4 1Total Number of Samples 11+1QC 11+1QC 11+1QC 11+1QC 14+1QC 9+1QC 11+1QC 9+1QC 9+1QC 9+1QC 9+1QCa – Group I includes total suspended solids (TSS), total dissolved solids (TDS), sulfate, and chloride.b – Group II includes ammonia as nitrogen, nitrate/nitrite as nitrogen, total Kjeldahl nitrogen (TKN), chemical oxygen demand (COD), and total phosphorus.

# 3-12Table 3-3. Field Measurements, KeystoneSamplingPointNumberSampling Point DescriptionDateTimeTemperature (°C)pH(S.U.)WasteStreamFlow Rate(gpm)NotesThermometerProbeMeteraStripsSP-1 Influent to FGD WastewaterTreatment System – Day 19/13/2010 095446426.2 7 490Samplers noted that thesamples appeared to behigh in solids. Nodetected sulfides oroxidants in total cyanidegrab.Influent to FGD WastewaterTreatment System – Day 29/14/2010 10154640.86.06 7 493Influent to FGD WastewaterTreatment System – Day 39/15/2010 092439.5416.19 6.5 490Influent to FGD WastewaterTreatment System – Day 49/16/2010 091846426.2 6.5 497SP-2 Effluent from FGD WastewaterTreatment System – Day 19/13/10 07192826.36.75 7247Samplers noted that plantpersonnel were unawareof the effects themaintenance work onpolishing filters andbiological growth in thesand filters would haveon the effluent samples.No detected sulfides oroxidants in total cyanidegrab.9/13/10 13192926.56.54 72279/13/10 19232927.76.56 7 2309/14/10 01202625.76.50 7 200Effluent from FGD WastewaterTreatment System – Day 29/14/10 072128256.35 71999/14/10 132028276.40 71739/14/10 19162926.56.40 7 1639/15/10 01152825.86.47 7 170Effluent from FGD WastewaterTreatment System – Day 39/15/10 07202825.66.54 7 2099/15/10 13152826.16.67 6.5 1849/15/10 19142927.86.50 7 2229/16/10 01152826.76.57 7 208Effluent from FGD WastewaterTreatment System – Day 49/16/10 072329266.50 7 1689/16/10 13182926.46.50 7 2059/16/10 19282827.26.51 7 1549/17/10 01252827.76.53 7.5 212aThe pH meter was calibrated prior to the sampling episode and once every day during the sampling episode using prepackaged buffer solutions at pH 4.0, 7.0,and 10.0.

# 3-13 Table 3-4. Crosswalk of Sample Number to Sampling Point and Day, Keystone

Sample Number Sample Point Sample Description

71891 SP-1, Day 1 Influent to FGD Wastewater Treatment System - Day 1

71892 SP-1, Day 2 Influent to FGD Wastewater Treatment System - Day 2

71893 SP-1, Day 3 Influent to FGD Wastewater Treatment System - Day 3

71894 SP-1, Day 4 Influent to FGD Wastewater Treatment System - Day 4

71895 SP-2, Day 1 Effluent to FGD Wastewater Treatment System - Day 1

71896 SP-2, Day 2 Effluent to FGD Wastewater Treatment System - Day 2

71897 SP-2, Day 3 Effluent to FGD Wastewater Treatment System - Day 3

71898 SP-2, Day 4 Effluent to FGD Wastewater Treatment System - Day 4

71899 SP-3, Day 2 Duplicate of Effluent to FGD Wastewater Treatment System - Day 2

71900 SP-4, Day 1 Influent to FGD Wastewat er Treatment System Field Blank - Day 1

71901 SP-5, Day 1 Effluent to FGD Wastewat er Treatment System Field Blank - Day 1

71902 SP-5, Day 2 Effluent to FGD Wastewat er Treatment System Field Blank - Day 2

71903 SP-5, Day 3 Effluent to FGD Wastewat er Treatment System Field Blank - Day 3

71904 SP-5, Day 4 Effluent to FGD Wastewat er Treatment System Field Blank - Day 4

# 3-14 Table 3-5. Analytical Methods, Keystone

Parameter Method Number Maximum Holding

Time a



# Classicals

Biochemical oxygen demand (BOD 5 

# ) SM 5210 B 48 hours

Chemical oxygen demand (COD) EPA 410.4 28 days

Total suspended solids (TSS) SM 2540 D 7 days

Total dissolved solids (TDS) SM 2540 C 7 days

Sulfate EPA 300.0 28 days

Chloride EPA 300.0 28 days

Ammonia as nitrogen EPA 350.1 28 days

Nitrate/nitrate as nitr ogen EPA 353.2 28 days

Total Kjeldahl nitrogen (TKN) EPA 351.2 28 days

Total phosphorus EPA 365.1 28 days

Total cyanide SM 4500 CN E 14 days

Total and Dissolved Metals

Mercury EPA 1631E 90 days b



# Hexavalent chromium (dissolved only) EPA 218.6 28 days

Antimony, arsenic, cadmium, chromium, copper, lead,

nickel, selenium, silver, thallium, and vanadium EPA 200.8 with

collision cell 6 months

Aluminum, barium, beryllium, boron, calcium, cobalt,

iron, magnesium, manganese, molybdenum, sodium,

tin, titanium, and zinc EPA 200.7 6 months

a 

# The holding times are based on the on-site field preservation identified in Table 3-3.

b 

# The dissolved mercury samples must be filtered in the laboratory within 24 hours after sample collection.

Additionally, the samples must be preserved by the labo ratory within 48 hours after sample collection.

# 3-15 Table 3-6. Summary of Sample Contain er and Planned Preservation, Keystone

Parameter Sample

Container and

Volume QC Sample

Container and

Volume On-Site Preservation

Classicals

BOD 5 

# One 1-L plastic

bottle One 1-L plastic

bottle ≤ 6  C

Group I a 

# One 1-L plastic

bottles One 1-L plastic

bottles ≤ 6  C

Group II b 

# Two 1-L plastic

bottles Two 1-L plastic

bottles H 2 

# SO 4 

# to pH <2 S.U., ≤ 6  C

Total cyanide One 1-L plastic

bottle One 1-L plastic

bottles Dilution until sulfide is not detected,

NaAsO 2 

# until total chlorine is not

present, NaOH to pH >10 S.U.,

≤ 6  C

Metals

Total metals (EPA Method 200.8 with

collision cell) One 500-mL

plastic bottle No additional

volume needed None

(acid preserve at laboratory)

Total metals (EPA Method 200.7) One 500-mL

plastic bottle No additional

volume needed None

(acid preserve at laboratory)

Dissolved metals (EPA Method 200.8

with collision cell) One 500-mL

plastic bottle No additional

volume needed 0.45-μm filter (performed in field)

(acid preserve at laboratory)

Dissolved metals (EPA Method 200.7) One 500-mL

plastic bottle No additional

volume needed 0.45-μm filter (performed in field)

(acid preserve at laboratory)

Total mercury: None

(acid preserve at laboratory) Manual composite grab samples Four 125-mL

glass bottle No additional

volume needed

Influent samples and field blank

samples Two 250-mL

glass bottle No additional

volume needed

Dissolved mercury: None

(filter and acid preserve at

laboratory) Manual composite grab samples Four 125-mL

glass bottle No additional

volume needed

Influent samples One 250-mL

glass bottle No additional

volume needed

Hexavalent chromium One 250-mL

plastic bottle No additional

volume needed 0.45-μm filter (performed in field)

Ammonium sulfate buffer to

pH 9.3 – 9.7 S.U., ≤ 6  C

(a) Group I includes TSS, TDS, sulfate, and chloride.

(b) Group II includes ammonia as nitrogen, COD, nitr ate/nitrite as nitrogen, TKN, and total phosphorus.

# 3-16 Table 3-7. Sample Preservation Summary, Keystone

Sampling Point

Number Analysis Date Chemical

Added Initial pH Final pH Amount

Added

(drops)

71891 Group II Volume 1 9/13/10 H 2 

# SO 4 

# 7 2 45

71891 Group II Volume 2 9/13/10 H 2 

# SO 4 

# 7 2 45

71891 Hexavalent Chromium 9/13/10 (NH 4 

# ) 2 

# SO 4



# Buffer 7 8 100

NH 4 

# OH 9.3 23

71900 Hexavalent Chromium Field

Blank 9/13/10 (NH 4 

# ) 2 

# SO 4



# Buffer 5.5 9 100

NH 4 

# OH 9.3 3

71891 Total Cyanide 9/13/10 NaOH 7 11 225

71895 Total Cyanide 9/13/10 NaOH 7 11 55

71892 Group II Volume 1 9/14/10 H 2 

# SO 4 

# 6.5 2 55

71892 Group II Volume 2 9/14/10 H 2 

# SO 4 

# 6.5 2 55

71895 Group II Volume 1 9/14/10 H 2 

# SO 4 

# 7 2 45

71895 Group II Volume 2 9/14/10 H 2 

# SO 4 

# 7 2 45

71892 Hexavalent Chromium 9/14/10 (NH 4 

# ) 2 

# SO 4



# Buffer 6.5 7.7 50

NH 4 

# OH 9.3 25

71895 Hexavalent Chromium 9/14/10 (NH 4 

# ) 2 

# SO 4



# Buffer 7 8.0 100

NH 4 

# OH 9.3 18

71901 Hexavalent Chromium Field

Blank 9/14/10 (NH 4 

# ) 2 

# SO 4



# Buffer 7 8.7 100

NH 4 

# OH 9.3 4

71892 Total Cyanide 9/14/10 NaOH 6.5 11 150

71896 Total Cyanide 9/14/10 NaOH 7 10.5 70

71899 Total Cyanide 9/14/10 NaOH 7 10.5 70

71893 Group II Volume 1 9/15/10 H 2 

# SO 4 

# 7 2 55

71893 Group II Volume 2 9/15/10 H 2 

# SO 4 

# 7 2 55

71896 Group II Volume 1 9/15/10 H 2 

# SO 4 

# 6.5 2 45

71896 Group II Volume 2 9/15/10 H 2 

# SO 4 

# 6.5 2 45

71899 Group II Volume 1 9/15/10 H 2 

# SO 4 

# 6.5 2 45

71899 Group II Volume 2 9/15/10 H 2 

# SO 4 

# 6.5 2 45

71896 Hexavalent Chromium 9/15/10 (NH 4 

# ) 2 

# SO 4



# Buffer 6.5 8.1 100

NH 4 

# OH 9.3 18

71899 Hexavalent Chromium -

Duplicate 9/15/10 (NH 4 

# ) 2 

# SO 4



# Buffer 6.5 8.1 100

NH 4 

# OH 9.3 18

71893 Hexavalent Chromium 9/15/10 (NH 4 

# ) 2 

# SO 4



# Buffer 6.5 8.5 100

NH 4 

# OH 9.3 25

# 3-17 Table 3-7. Sample Preservation Summary, Keystone

Sampling Point

Number Analysis Date Chemical

Added Initial pH Final pH Amount

Added

(drops)

71893 Total Cyanide 9/15/10 NaOH 6.5 11 210

71897 Total Cyanide 9/15/10 NaOH 7 11 70

71897 Total Cyanide – QC b 

# 9/15/10 NaOH 7 8 45

71897 Total Cyanide – QC (2) b 

# 9/15/10 NaOH 8 11 25

71894 Group II Volume 1 9/16/10 H 2 

# SO 4 

# 6.5 2 55

71894 Group II Volume 2 9/16/10 H 2 

# SO 4 

# 6.5 2 55

71897 Group II Volume 1 9/16/10 H 2 

# SO 4 

# 7 2 45

71897 Group II Volume 1 - QC 9/16/10 H 2 

# SO 4 

# 7 2 45

71897 Group II Volume 2 9/16/10 H 2 

# SO 4 

# 7 2 45

71897 Group II Volume 2 - QC 9/16/10 H 2 

# SO 4 

# 7 2 45

71894 Hexavalent Chromium 9/16/10 (NH 4 

# ) 2 

# SO 4



# Buffer 7 7 20

NH 4 

# OH 9.3 26

71897 Hexavalent Chromium 9/16/10 (NH 4 

# ) 2 

# SO 4



# Buffer 7 8 100

NH 4 

# OH 9.3 18

71894 Total Cyanide 9/16/10 NaOH 6.5 11 210

71898 Total Cyanide 9/16/10 NaOH 6.5 11 75

71898 Total Cyanide-QC b 

# 9/16/10 NaOH 6.5 11 75

71898 Group II Volume 1 9/17/10 H 2 

# SO 4 

# 7 2 45

71898 Group II Volume 2 9/17/10 H 2 

# SO 4 

# 7 2 45

71898 Hexavalent Chromium 9/17/10 (NH 4 

# ) 2 

# SO 4



# Buffer 7 7.7 100

NH 4 

# OH 9.3 18

a 

# Preservation of this sample was stopped because the bo ttle became too full and additional preservative could not be

added to the sample bottle.

b 

# The sampling team ran out of sodium hydroxide at SP-2 an d was unable to fully preserve the cyanide QC sample

(71897) until one hour after collection. The sampling team di d note the second preservation to achieve a pH of 10.

However, because the sample was not preserved until one ho ur after collection, EPA re-collected the cyanide QC

sample at day 4; therefore, the Day 3 (71897) QC sample was not analyzed by the laboratory.

# 3-18 Table 3-8. Generating Unit Operating Charact eristics during Sample Collection, Keystone

Unit ID Boiler Type Capacity

(MW) Electricity Production

(MW)

(or Percent Capacity %) SCR

(No, On, Off) Particulate Control System

(HS/CS ESP, or BH)

1 Supercritical 850 ne t 96.6% ON CS ESP

2 Supercritical 850 ne t 96.6% ON CS ESP



# CS ESP – Cold-side elect rostatic precipitator.

# 3-19Table 3-9. FGD Scrubber System Operating Characteristics, KeystoneUnit IDWet FGDSystem (Yes/No)Type ofScrubberForcedOxidation(Yes/No)SorbentAdditives (DBA,formic acid,etc.)FGD Make-upWater SourceSO2RemovalPercentageType of SolidsSeparation1 Yes Wet FGD Yes Limeslurry None Plum Creek 98 Hydrocyclones2 Yes Wet FGD Yes Limeslurry None Plum Creek 98 Hydrocyclones

# 3-20 Table 3-10. Coal Usage during Sample Collection, Keystone

Day of

Sampling Unit

ID Coal Type Amount of Coal

Used During Day

of Sampling

(tpd) Source of

Coal (Coal

Region and/or

State) Percent

Sulfur in

Coal

(%) Chlorine Content

of Coal

(ppm)

1 1 Bituminous 7627 Western PA 2.56 995

2 Bituminous 7465 Western PA 2.56 995

2 1 Bituminous 7589 Western PA 2.63 1279

2 Bituminous 7705 Western PA 2.63 1279

3 1 Bituminous 7538 Western PA 2.37 949

2 Bituminous 7349 Western PA 2.37 949

4 1 Bituminous 7142 Western PA 2.59 939

2 Bituminous 7430 Western PA 2.59 939



# Table 3-11. Scrubber Slurry Information dur ing Sample Collection, Keystone Creek

Day of

Sampling FGD

System ID Associated

Unit IDs Scrubber Slurry

Blowdown Flow Rate 

# Scrubber

Slurry

Percent

Solids Time of

Dewatering

During

Sampling Day a 

# Percent

Filtrate

Recycled

Back to

Scrubber Flow Rate

(gpm) Duration

1 FGD-1 1 242.5 9hr 12min 1.5 - 2.0

223 min 100%

FGD-2 2 242.5 9hr 12min 1.5 - 2.0 100%

2 FGD-1 1 243 12hr 18 min 1.5 - 2.0

516 min 100%

FGD-2 2 243 12hr 18min 1.5 - 2.0 100%

3 FGD-1 1 244 7hr 0min 1.5 - 2.0

410 min 100%

FGD-2 2 244 7hr 0min 1.5 - 2.0 100%

4 FGD-1 1 242.5 6hr 0min 1.5 - 2.0

297 min 100%

FGD-2 2 242.5 6hr 0min 1.5 - 2.0 100%

a 

# – Time of dewatering during sampling day represents the total time the plant was dewatering for the day. The

specific periods of time are not presented in this table.

# 3-21Table 3-12. FGD Wastewater Treatment System Operation Information, KeystoneDay ofSamplingScrubber PurgeChemical UsageFlow Rate(gpm)Duration(hr)Lime(lbs/day)Ferric Chloride(lbs/day)Organosulfide:TMT-15(lbs/day)Polymer:Scaletrol PDC9326(lbs/day)HCl(lbs/day)1 485 9hr 12min6728a(3,500 mg/L)815a(55 ppm)224a(14 ppm)19(3 ppm)5460a(147 ppm)2 486 12 hr 18 min6728a(3,500 mg/L)815a(55 ppm)224a(14 ppm)19(3 ppm)5460a(147 ppm)3 488 7 hr6728a(3,500 mg/L)815a(55 ppm)224a(14 ppm)19(3 ppm)5460a(147 ppm)4 485 1 hr6725a(3,500 mg/L)815a(55 ppm)224a(14 ppm)19(3 ppm)5460a(147 ppm)a– Estimated Values.Note: the values provided in parentheses are thesetpoint for the chemical in the reaction tanks.

# 4-1 4. L ABORATORY 

# A NALYTICAL 

# R ESULTS AND 

# D ISCUSSION



# This section summarizes the laboratory results of analyses of samples for the influent to

the FGD wastewater treatment system and the effluent from the FGD wastewater treatment

system. Section 4.1 discusses the methods used by the laboratories for th e biphasic analysis of

SP-1. Section 4.2 presents the laborat ory analytical data for the infl uent to and effluent from the

FGD wastewater treatment system.

Appendix A provides all analytical results for all samples collected at Keystone,

including all qualified results a nd all results that were measur ed above the method detection

limit, but below the quantita tion limit (i.e., J-values).

4.1 Measured and Calculated Results for In fluent to FGD Wastewater Treatment

System Samples

The samples of the influent to the FGD wast ewater treatment system were expected to

contain significant amounts of r eadily settleable solids, to a large degree consisting of gypsum,

unreacted limestone, and fly ash. Because of th is, EPA was concerned that there could be

analytical interferences for the metals analyses, since the acid digestion procedures used may not

be sufficiently rigorous for samples with high solid s loads. Therefore, ERG directed its contract

laboratories to separate the aque ous and solid phases of the samp le prior to conducting certain

analyses, where allowed by the analytical method and if necessary to obtain acceptable analytical

results. This biphasic approach provides EPA with measured or calculated pollutant

concentrations for the following phases of the sample:

 Aqueous phase;

 Solid phase; and

 Total sample.

The metals and classicals laboratory, Test America Laboratories - Denver (TestAmerica),

and the mercury laboratory, Frontier Global Scien ces (Frontier), used two different approaches

for the biphasic analysis. This section describes the approaches used by each laboratory and

presents the results of the analyses.

Metals and Classicals Analyses

TestAmerica used EPA Methods 200.7 and 200.8 to analyze the wastewater samples for

metals. Both EPA Methods 200.7 and 200.8 state, “Aqueous samples containing total suspended

solids ≥ 1% (w/v) should be extracted as a solid type sample.” [3, 4] Because EPA expected the

solids content to be greater than one percent, TestAmerica developed an approach for the

analysis of the FGD influent samples that consiste d of performing a pressure filtration to separate

the solids from the sample and analyzing the so lid and aqueous phases separately. TestAmerica

also dried the solids prior to analysis, so the so lid concentration is on a dry-weight basis. To

calculate the total sample concentration from th e solid and aqueous phase results, the laboratory

also needed to measure the original sample vol ume, solid phase weight, and filtrate volume. EPA

developed the following equation to calculate the individual metal total concentrations for the

sample.

# 4-2 Sample Solid Solid Filtrate Filtrate



# V ) Wt (C ) V (C ion Concentrat Sample Total   

 (4-1)

where:

C Filtrate 

# = concentration of the analyte in the aqueous phase of the sample;

V Filtrate 

# = volume of the filtrate;

C Solid 

# = concentration of the analyte in the solid phase of the sample;

Wt Solid 

# = weight of the solids in the sample; and

V Sample 

# = volume of the original sample.

TestAmerica used the same approach for the se ven classical pollutants that were analyzed

as biphasic samples: ammonia as nitrogen, chloride, sulfate, nitrate/nitrite, total cyanide, total

Kjeldahl nitrogen (TKN), and total phosphorus.

Mercury Analyses

Frontier used EPA Method 1631E to analyze the wastewater samples for mercury. EPA

Method 1631E does not contain a ny language stating how wastewat er samples with high solid

concentrations should be analyzed ; therefore, Frontier developed an approach for the analysis of

the FGD influent samples that minimized potenti al contamination to the samples. Frontier’s

approach consisted of using a centr ifuge to separate the solids from the sample and analyzing the

solid and aqueous phases se parately. Frontier did not dry the solids prior to analysis, so the solid

concentration is on a wet-weight basis. To cal culate the total sample concentration from the

solid and aqueous phase results, the laboratory also needed to measure the original sample

volume, solid phase weight, and filtrate volum e. EPA used Equation 4-1 to calculate the

individual total mercury con centrations for the sample.

Appendix Tables A-1 through A-4 present th e results of the biphasic analysis for

ammonia as nitrogen, nitrate/nitrit e, chloride, sulfate, nitrate/nitrite, total cyanide, TKN, total

phosphorus, total metals, and total mercury for each of the four days of sampling. Results are

rounded to three significant figures.

4.2 FGD Wastewater Treatment System

Table 4-1 presents the analytical results for all classical and metal analytes for the four

days of sampling at the influent to the FGD wast ewater treatment system (SP-1), as well as the

calculated 4-day average result for each analyte for the sampling point. The total metal results

presented in Table 4-1 represent the calculated total result for all analytes for which biphasic

separation was performed. Table 4-2 presents the analytical results for all classical and metal

analytes for the four days of sampling at the e ffluent from the FGD wast ewater treatment system

(SP-2).

Tables 4-1 and 4-2 include the analytical results for all anal ytes for which EPA conducted

analyses. Results are rounded to three signifi cant digits. If an analyte was not detected in a

sample above the method detection limit, the resu lt is reported as “ND” followed by the samplespecific quantitation limit in parentheses. If an analyte was measured above the method

detection limit, but below the quantitation limit, the result is reported as “NQ” followed by the

sample-specific quantitation limit in parentheses.

# 4-3 For Table 4-2 (effluent from the FGD wastew ater treatment system), a duplicate sample

was collected on Day 2 of the sampling episode. The Day 2 results presented in Table 4-2

represent the averag e of the original and the duplicate samp le results. Table 5-1 presents the

analytical results for the original and duplicat e results and the calculated relative percent

difference (RPD).

When calculating the average concentrations for the duplicate samples or for the 4-day

averages, ERG used the following methodology:

 

# If all results were above the quantitati on limit, then all results were averaged

together;

 

# If at least one result was above the quan titation limit, then 1⁄2 the quantitation limit

was used in the average calculation for all results that were less than the

quantitation limit and the result is repo rted with a less than sign (“<”);

 

# If all results were below the quantitation limit, but at least one result was above

the method detection limit (i.e., J-value), then the sample-specific quantitation

limits for all results were averaged and the result is reported as “NQ” followed by

the average of the sample-specific quantitation limits; and

 

# If all results were below the method de tection limit, then the sample-specific

quantitation limits for all results were aver aged and the result is reported as “ND”

followed by the average of the sample-specific quantitation limits.

Table 4-3 presents the 4-day average results fo r all classical analytes for the influent to

the FGD wastewater treatment system (SP-1) and the efflue nt from the FGD wastewater

treatment system (SP-2). Table 4-4 presents th e 4-day average results for all metal analytes,

including total and dissolved analyses, for the in fluent to the FGD wastewater treatment system

(SP-1) and the effluent from th e FGD wastewater treatment system (SP-2). The results presented

in this report are not paired results, meaning that the sample collection across the treatment

system was not timed to reflect the amount of time it takes the wastewater to pass through the

system.

Appendix Tables A-1 through A-13 present all the analytical results from the influent to

the FGD wastewater treatment system (SP-1), th e effluent from the FGD wastewater treatment

system (SP-2), and the duplicate of the effluentfrom the FGD wastewater treatment system (SP3) sample analyses, including J-values.

# 4-4Note: The total metals results and the results for certain classical analytes (i.e., ammonia as nitrogen, nitrate/nitrite, chloride, sulfate, nitrate/nitrite, total cyanide, TKN, totalphosphorus) represent the total result that was calculated based onthe results of the solid and aqueous phase of the samples.See Section 4.1 for more details.< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).ND – Not detected (number in parentheses is the quantitation limit).NQ – Analyte was measured above the method detection limit, butbelow the quantitation limit (number shown in parentheses is the quantitation limit). The analytical result ispresented in Appendix A with a J flag designation. A “NQ” for the 4-day average result indicates that all results were below the quantitation limit, but at least one result is a Jvalue.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.Min – Minimum value.S – Seed correction blank recovery low.Table 4-1. Influent to FGD Wastewater Treatment System, KeystoneAnalyteUnitsMethodInfluent to FGD Wastewater Treatment System (SP-1)Day 1Day 2Day 3Day 44-DayAverageClassicalsAmmonia mg/L 350.1 13.3 14.1 13.3 11.8 13.1Nitrate Nitrite as N mg/L 353.2 11.4 13.4 13.4 11.0 12.3Nitrogen, Total Kjeldahl mg/L 351.2 57.2 54.7 51.5 49.6 53.3Biochemical OxygenDemand mg/L 5210B 10.0 S,Min 9.50 S,Min 13.0 S,Min 2.90 8.85Chemical OxygenDemand mg/L 410.4 1,400 420 360 450 658Chloride mg/L 300.0, 9056 15,400 15,300 15,300 14,600 15,200Sulfate mg/L 300.0, 9056 1,920 2,020 2,040 1,950 1,980Cyanide, Total mg/L 4500 CN E 0.341 0.194 0.280 0.283 0.275Total Dissolved Solids mg/L 2540C 35,000 D,H,Est 35,000 H,Est 37,000 H,Est 35,000 H,Est 35,500Total Suspended Solids mg/L 2540D 26,000 29,000 20,000 55,000 32,500Phosphorus, Total mg/L 365.1 1.12 11.0 1.06 0.198 3.34Total MetalsAluminum ug/L 200.7, 6010B 1,000,000 871,000 938,000 922,000 933,000Antimony ug/L 200.8, 6020 44.9 29.6 38.7 39.6 38.2Arsenic ug/L 200.8, 6020 3,080 2,470 2,720 2,560 2,710Barium ug/L 200.7, 6010B 19,600 11,900 10,300 10,300 13,000Beryllium ug/L 200.7, 6010B NQ (85.4) NQ (71.6) NQ (73.8) NQ (70.2) NQ (75.3)Boron ug/L 200.7, 6010B 411,000 391,000 403,000 394,000 400,000Cadmium ug/L 200.8, 6020 104 94.5 94.0 108 100Calcium ug/L 200.7, 6010B 6,780,000 6,670,000 7,200,000 6,710,000 6,840,000Chromium ug/L 200.8, 6020 3,010 2,410 2,630 2,590 2,660

# 4-5Note: The total metals results and the results for certain classical analytes (i.e., ammonia as nitrogen, nitrate/nitrite, chloride, sulfate, nitrate/nitrite, total cyanide, TKN, totalphosphorus) represent the total result that was calculated based onthe results of the solid and aqueous phase of the samples.See Section 4.1 for more details.< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).ND – Not detected (number in parentheses is the quantitation limit).NQ – Analyte was measured above the method detection limit, butbelow the quantitation limit (number shown in parentheses is the quantitation limit). The analytical result ispresented in Appendix A with a J flag designation. A “NQ” for the 4-day average result indicates that all results were below the quantitation limit, but at least one result is a Jvalue.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.Min – Minimum value.S – Seed correction blank recovery low.Table 4-1. Influent to FGD Wastewater Treatment System, KeystoneAnalyteUnitsMethodInfluent to FGD Wastewater Treatment System (SP-1)Day 1Day 2Day 3Day 44-DayAverageCobalt ug/L 200.7, 6010B 968 891 913 861 908Copper ug/L 200.8, 6020 2,070 1,720 1,820 3,280 2,220Iron ug/L 200.7, 6010B 2,670,000 2,320,000 2,470,000 2,350,000 2,450,000Lead ug/L 200.8, 6020 1,140 904 1,000 981 1,010Magnesium ug/L 200.7, 6010B 2,880,000 2,780,000 2,790,000 2,750,000 2,800,000Manganese ug/L 200.7, 6010B 486,000 459,000 454,000 442,000 460,000Mercury ng/L1631E, FGS069 533,000 515,000 559,000 622,000 557,000Molybdenum ug/L 200.7, 6010B 568 465 500 506 510Nickel ug/L 200.8, 6020 5,640 4,990 5,020 6,560 5,550Selenium ug/L 200.8, 6020 4,200 3,740 4,380 4,000 4,080Silver ug/L 200.8, 6020 NQ (8.55) NQ (7.12) NQ (7.83) 387 < 99.7Sodium ug/L 200.7, 6010B 341,000 300,000 330,000 323,000 324,000Thallium ug/L 200.8, 6020 52.6 50.0 54.8 56.1 53.4Tin ug/L 200.7, 6010BND(1,860)ND(1,610)ND(1,600)ND(1,520)ND(1,650)Titanium ug/L 200.7, 6010B 7,350 5,520 5,940 6,240 6,260Vanadium ug/L 200.8, 6020 4,010 3,190 3,440 3,270 3,480Zinc ug/L 200.7, 6010B 6,100 5,310 5,390 5,460 5,570Dissolved MetalsAluminum ug/L 200.7 ND (200) ND (200) ND (200) ND (200) ND (200)Antimony ug/L 200.8 ND (2.00) ND (2.00) ND (2.00) ND (2.00) ND (2.00)Arsenic ug/L 200.8 NQ (4.00) NQ (4.00) NQ (4.00) NQ (4.00) NQ (4.00)Barium ug/L 200.7 400 380 370 360 378

# 4-6Note: The total metals results and the results for certain classical analytes (i.e., ammonia as nitrogen, nitrate/nitrite, chloride, sulfate, nitrate/nitrite, total cyanide, TKN, totalphosphorus) represent the total result that was calculated based onthe results of the solid and aqueous phase of the samples.See Section 4.1 for more details.< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).ND – Not detected (number in parentheses is the quantitation limit).NQ – Analyte was measured above the method detection limit, butbelow the quantitation limit (number shown in parentheses is the quantitation limit). The analytical result ispresented in Appendix A with a J flag designation. A “NQ” for the 4-day average result indicates that all results were below the quantitation limit, but at least one result is a Jvalue.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.Min – Minimum value.S – Seed correction blank recovery low.Table 4-1. Influent to FGD Wastewater Treatment System, KeystoneAnalyteUnitsMethodInfluent to FGD Wastewater Treatment System (SP-1)Day 1Day 2Day 3Day 44-DayAverageBeryllium ug/L 200.7 ND (2.00) ND (2.00) ND (2.00) ND (2.00) ND (2.00)Boron ug/L 200.7 410,000 B 380,000 B 400,000 B 390,000 B 395,000Cadmium ug/L 200.8 93.0 84.0 77.0 86.0 85.0Calcium ug/L 200.7 5,200,000 5,000,000 5,100,000 5,000,000 5,080,000Chromium ug/L 200.8 ND (8.00) ND (8.00) ND (8.00) ND (8.00) ND (8.00)Chromium (VI) ug/L 218.6 ND (10.0) ND (10.0) ND (10.0) ND (10.0) ND (10.0)Cobalt ug/L 200.7 500 480 470 450 475Copper ug/L 200.8 NQ (4.00) NQ (4.00) NQ (4.00) NQ (4.00) NQ (4.00)Iron ug/L 200.7 NQ (200) NQ (200) NQ (200) NQ (200) NQ (200)Lead ug/L 200.8 ND (2.00) ND (2.00) ND (2.00) ND (2.00) ND (2.00)Magnesium ug/L 200.7 2,900,000 2,800,000 2,800,000 2,800,000 2,830,000Manganese ug/L 200.7 470,000 440,000 450,000 440,000 450,000Mercury ng/L 1631E 1,410 899 251 1,100 915Molybdenum ug/L 200.7 ND (40.0) ND (40.0) ND (40.0) ND (40.0) ND (40.0)Nickel ug/L 200.8 2,300 2,200 2,100 2,100 2,180Selenium ug/L 200.8 1,100 B 1,200 B 1,200 B 1,400 B 1,230Silver ug/L 200.8 ND (2.00) ND (2.00) ND (2.00) ND (2.00) ND (2.00)Sodium ug/L 200.7 330,000 300,000 310,000 320,000 315,000Thallium ug/L 200.8 29.0 26.0 26.0 29.0 27.5Tin ug/L 200.7 ND (200) ND (200) ND (200) ND (200) ND (200)Titanium ug/L 200.7 NQ (20.0) NQ (20.0) NQ (20.0) NQ (20.0) NQ (20.0)Vanadium ug/L 200.8 NQ (10.0) ND (10.0) NQ (10.0) ND (10.0) NQ (10.0)Zinc ug/L 200.7 82.0 71.0 69.0 61.0 70.8

# 4-7Note: The Day 2 results represent the average of the original sample and the field duplicate (SP-3). See Section 5.2.4 for theanalytical results for the individual samples.< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).ND – Not detected (number in parentheses is the quantitation limit).NQ – Analyte was measured above the method detection limit, butbelow the quantitation limit (number shown in parentheses is the quantitation limit). The analytical result ispresented in Appendix A with a J flag designation. A “NQ” for the 4-day average result indicates that all results were below the quantitation limit, but at least one result is a Jvalue.4 – MS and/or MSD did not meet laboratorycriteria, but sample concentration is fourtimes greater thanthe matrix spike amount, so control limits are not applicable.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.F – MS and/or MSD not within laboratory control limits.M – MS percent recovery outside themethod-specified criteria, but withinthe laboratory-specified criteria.Min – Minimum value.S – Seed correction blank recovery low.Table 4-2. Effluent from FGD Wastewater Treatment System, KeystoneAnalyteUnitsMethodEffluent from FGD Wastewater Treatment System (SP-2)Day 1Day 2Day 3Day 44-DayAverageClassicalsAmmonia mg/L 350.1 13.0 12.0 11.0 12.0 12.0Nitrate Nitrite as N mg/L 353.2 9.70 M,Min 9.35 9.30 9.40 9.44Nitrogen, Total Kjeldahl mg/L 351.2 22.0 B 20.0 20.0 B,4 85.0 36.8Biochemical Oxygen Demand mg/L 5210B 8.50 S,Min 7.00 6.80 S,Min 3.50 S,Min 6.45Chemical Oxygen Demand mg/L 410.4 470 275 380 F,Min 320 361Chloride mg/L 300.0 15,000 15,000 14,000 13,000 14,300Sulfate mg/L 300.0 1,500 1,350 1,400 1,400 1,410Cyanide, Total mg/L 4500 CN E 0.120 B < 0.115 ND (0.100) 0.100 < 0.0963Total Dissolved Solids mg/L 2540C 35,000 B 30,500 29,000 29,000 30,900Total Suspended Solids mg/L 2540D 4.80 32.0 7.20 D,Est 9.60 13.4Phosphorus, Total mg/L 365.1 1.20 1.10 1.20 1.10 1.15Total MetalsAluminum ug/L 200.7 ND (200) NQ (200) ND (200) ND (200) NQ (200)Antimony ug/L 200.8 NQ (2.00) NQ (2.00) NQ (2.00) NQ (2.00) NQ (2.00)Arsenic ug/L 200.8 NQ (4.00) < 3.05 NQ (4.00) NQ (4.00) < 2.26Barium ug/L 200.7 320 300 290 280 298Beryllium ug/L 200.7 ND (2.00) ND (2.00) ND (2.00) ND (2.00) ND (2.00)Boron ug/L 200.7 300,000 B 300,000 280,000 B,4 290,000 B,4 293,000Cadmium ug/L 200.8 NQ (4.00) NQ (4.00) NQ (4.00) NQ (4.00) NQ (4.00)Calcium ug/L 200.7 6,300,000 6,100,000 5,600,000 4 5,600,000 4 5,900,000Chromium ug/L 200.8 ND (8.00) ND (8.00) ND (8.00) ND (8.00) ND (8.00)Cobalt ug/L 200.7 ND (20.0) ND (20.0) ND (20.0) ND (20.0) ND (20.0)

# 4-8Note: The Day 2 results represent the average of the original sample and the field duplicate (SP-3). See Section 5.2.4 for theanalytical results for the individual samples.< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).ND – Not detected (number in parentheses is the quantitation limit).NQ – Analyte was measured above the method detection limit, butbelow the quantitation limit (number shown in parentheses is the quantitation limit). The analytical result ispresented in Appendix A with a J flag designation. A “NQ” for the 4-day average result indicates that all results were below the quantitation limit, but at least one result is a Jvalue.4 – MS and/or MSD did not meet laboratorycriteria, but sample concentration is fourtimes greater thanthe matrix spike amount, so control limits are not applicable.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.F – MS and/or MSD not within laboratory control limits.M – MS percent recovery outside themethod-specified criteria, but withinthe laboratory-specified criteria.Min – Minimum value.S – Seed correction blank recovery low.Table 4-2. Effluent from FGD Wastewater Treatment System, KeystoneAnalyteUnitsMethodEffluent from FGD Wastewater Treatment System (SP-2)Day 1Day 2Day 3Day 44-DayAverageCopper ug/L 200.8 ND (4.00) ND (4.00) ND (4.00) ND (4.00) ND (4.00)Iron ug/L 200.7 NQ (200) B NQ (200) NQ (200) B NQ (200) B NQ (200)Lead ug/L 200.8 ND (2.00) ND (2.00) ND (2.00) ND (2.00) ND (2.00)Magnesium ug/L 200.7 1,900,000 B 2,000,000 1,900,000 B,4 1,900,000 B,4 1,930,000Manganese ug/L 200.7 24,000 B 23,000 19,000 B,4 23,000 B,4 22,300Mercury ng/L 1631E 119 108 78.6 31.2 84.1Molybdenum ug/L 200.7 42.0 43.5 42.0 43.0 42.6Nickel ug/L 200.8 6.80 7.50 8.60 7.00 7.48Selenium ug/L 200.8 300 350 300 320 F,4 318Silver ug/L 200.8 ND (2.00) ND (2.00) ND (2.00) F ND (2.00) F ND (2.00)Sodium ug/L 200.7 300,000 290,000 280,000 270,000 285,000Thallium ug/L 200.8 11.0 10.5 9.70 11.0 10.6Tin ug/L 200.7 ND (200) ND (200) ND (200) ND (200) ND (200)Titanium ug/L 200.7 NQ (20.0) NQ (20.0) NQ (20.0) NQ (20.0) NQ (20.0)Vanadium ug/L 200.8 NQ (10.0) B NQ (10.0) NQ (10.0) B NQ (10.0) B NQ (10.0)Zinc ug/L 200.7 ND (40.0) ND (40.0) NQ (40.0) ND (40.0) NQ (40.0)Dissolved MetalsAluminum ug/L 200.7 ND (200) ND (200) NQ (200) ND (200) NQ (200)Antimony ug/L 200.8 ND (2.00) NQ (2.00) NQ (2.00) NQ (5.00) NQ (2.75)Arsenic ug/L 200.8 NQ (4.00) NQ (4.00) NQ (4.00) NQ (10.0) NQ (5.50)Barium ug/L 200.7 320 295 290 280 296Beryllium ug/L 200.7 ND (2.00) ND (2.00) ND (2.00) ND (2.00) ND (2.00)Boron ug/L 200.7 300,000 B 295,000 280,000 B,4 290,000 B,4 291,000

# 4-9Note: The Day 2 results represent the average of the original sample and the field duplicate (SP-3). See Section 5.2.4 for theanalytical results for the individual samples.< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).ND – Not detected (number in parentheses is the quantitation limit).NQ – Analyte was measured above the method detection limit, butbelow the quantitation limit (number shown in parentheses is the quantitation limit). The analytical result ispresented in Appendix A with a J flag designation. A “NQ” for the 4-day average result indicates that all results were below the quantitation limit, but at least one result is a Jvalue.4 – MS and/or MSD did not meet laboratorycriteria, but sample concentration is fourtimes greater thanthe matrix spike amount, so control limits are not applicable.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.F – MS and/or MSD not within laboratory control limits.M – MS percent recovery outside themethod-specified criteria, but withinthe laboratory-specified criteria.Min – Minimum value.S – Seed correction blank recovery low.Table 4-2. Effluent from FGD Wastewater Treatment System, KeystoneAnalyteUnitsMethodEffluent from FGD Wastewater Treatment System (SP-2)Day 1Day 2Day 3Day 44-DayAverageCadmium ug/L 200.8 NQ (4.00) NQ (4.00) NQ (4.00) NQ (4.00) NQ (4.00)Calcium ug/L 200.7 6,300,000 6,000,000 5,700,000 4 5,800,000 4 5,950,000Chromium ug/L 200.8 ND (8.00) ND (8.00) ND (8.00) ND (8.00) ND (8.00)Chromium (VI) ug/L 218.6 ND (10.0) ND (10.0) ND (10.0) ND (10.0) ND (10.0)Cobalt ug/L 200.7 ND (20.0) ND (20.0) ND (20.0) ND (20.0) ND (20.0)Copper ug/L 200.8 ND (4.00) ND (4.00) ND (4.00) ND (4.00) ND (4.00)Iron ug/L 200.7 ND (200) ND (200) NQ (200) ND (200) NQ (200)Lead ug/L 200.8 ND (2.00) ND (2.00) ND (2.00) ND (2.00) ND (2.00)Magnesium ug/L 200.7 1,900,000 1,950,000 1,900,000 4 1,900,000 1,910,000Manganese ug/L 200.7 24,000 22,500 18,000 4 22,000 21,600Mercury ng/L 1631E 15.3 15.3 10.2 28.5 17.3Molybdenum ug/L 200.7 42.0 43.0 42.0 44.0 42.8Nickel ug/L 200.8 6.10 6.60 5.40 7.00 6.28Selenium ug/L 200.8 320 B 360 320 B,4 300 B,4 325Silver ug/L 200.8 ND (2.00) ND (2.00) ND (2.00) F ND (2.00) F ND (2.00)Sodium ug/L 200.7 300,000 290,000 280,000 280,000 288,000Thallium ug/L 200.8 11.0 10.5 11.0 10.0 10.6Tin ug/L 200.7 ND (200) ND (200) ND (200) ND (200) ND (200)Titanium ug/L 200.7 NQ (20.0) NQ (20.0) NQ (20.0) NQ (20.0) NQ (20.0)Vanadium ug/L 200.8 NQ (10.0) NQ (10.0) NQ (10.0) NQ (10.0) NQ (10.0)Zinc ug/L 200.7 ND (40.0) NQ (40.0) NQ (40.0) ND (40.0) NQ (40.0)

# 4-10< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).Table 4-3. Classical Pollutants 4-Day Average DataSummary for FGD Wastewater Treatment System, KeystoneAnalyteUnitsMethodSP-1SP-2ClassicalsAmmoniamg/L350.113.112.0Nitrate Nitrite as Nmg/L353.212.39.44Nitrogen, Total Kjeldahlmg/L351.253.336.8Biochemical Oxygen Demandmg/L5210B8.856.45Chemical Oxygen Demandmg/L410.4658361Chloridemg/L300.0, 905615,20014,300Sulfatemg/L300.0, 90561,9801,410Cyanide, Totalmg/L4500 CN E0.275< 0.0963Total Dissolved Solidsmg/L2540C35,50030,900Total Suspended Solidsmg/L2540D32,50013.4Phosphorus, Totalmg/L365.13.341.15

# 4-11< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).NA – Not analyzed.ND – Not detected (number in parentheses is the quantitation limit).NQ – Analyte was measured above the method detection limit, butbelow the quantitation limit (number shown in parentheses is the quantitation limit). The analytical result ispresented in Appendix A with a J flag designation. A “NQ” for the 4-day average result indicates that all results were below the quantitation limit, but at least one result is a Jvalue.Table 4-4. Metals Pollutants 4-Day Average Data Summary for FGD Wastewater Treatment System, KeystoneAnalyteUnitsMethodInfluent to FGDWastewater TreatmentSystem (SP-1)4-Day AverageEffluent from FGDWastewater TreatmentSystem (SP-2)4-Day AverageTotalDissolvedTotalDissolvedMetalsAluminumug/L200.7933,000ND (200)NQ (200)NQ (200)Antimonyug/L200.838.2ND (2.00)NQ (2.00)NQ (2.75)Arsenicug/L200.82,710NQ (4.00)< 2.26NQ (5.50)Bariumug/L200.713,000378298296Berylliumug/L200.7NQ (75.3)ND (2.00)ND (2.00)ND (2.00)Boronug/L200.7400,000395,000293,000291,000Cadmiumug/L200.810085.0NQ (4.00)NQ (4.00)Calciumug/L200.76,840,0005,080,0005,900,0005,950,000Chromiumug/L200.82,660ND (8.00)ND (8.00)ND (8.00)Chromium (VI)ug/L218.6NAND (10.0)NAND (10.0)Cobaltug/L200.7908475ND (20.0)ND (20.0)Copperug/L200.82,220NQ (4.00)ND (4.00)ND (4.00)Ironug/L200.72,450,000NQ (200)NQ (200)NQ (200)Leadug/L200.81,010ND (2.00)ND (2.00)ND (2.00)Magnesiumug/L200.72,800,0002,830,0001,930,0001,910,000Manganeseug/L200.7460,000450,00022,30021,600Mercuryng/L1631E557,00091584.117.3Molybdenumug/L200.7510ND (40.0)42.642.8Nickelug/L200.85,5502,1807.486.28Seleniumug/L200.84,0801,230318325Silverug/L200.8< 99.7ND (2.00)ND (2.00)ND (2.00)Sodiumug/L200.7324,000315,000285,000288,000Thalliumug/L200.853.427.510.610.6

# 4-12< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).NA – Not analyzed.ND – Not detected (number in parentheses is the quantitation limit).NQ – Analyte was measured above the method detection limit, butbelow the quantitation limit (number shown in parentheses is the quantitation limit). The analytical result ispresented in Appendix A with a J flag designation. A “NQ” for the 4-day average result indicates that all results were below the quantitation limit, but at least one result is a Jvalue.Table 4-4. Metals Pollutants 4-Day Average Data Summary for FGD Wastewater Treatment System, KeystoneAnalyteUnitsMethodInfluent to FGDWastewater TreatmentSystem (SP-1)4-Day AverageEffluent from FGDWastewater TreatmentSystem (SP-2)4-Day AverageTotalDissolvedTotalDissolvedTinug/L200.7ND (1,650)ND (200)ND (200)ND (200)Titaniumug/L200.76,260NQ (20.0)NQ (20.0)NQ (20.0)Vanadiumug/L200.83,480NQ (10.0)NQ (10.0)NQ (10.0)Zincug/L200.75,57070.8NQ (40.0)NQ (40.0)

# 5-1 5. D ATA 

# Q UALITY



# Quality assurance/quality control (QA/QC) procedures applicable to the Keystone

sampling episode are outlined in the Quality Assurance Project Plan for the Steam Electric

Rulemaking (QAPP) [2]. This section describes the QC pr ocedures used to assess the precision

and accuracy of the analytical data presented in Section 4 and Appendix A. QC practices used

for this sampling episode include the analysis of matrix spikes, blanks, duplicate samples, and

QC standard checks.

5.1 Analytical Quality Control

ERG contracted directly with analytical labor atories for the analysis of samples collected

during this episode. ERG verified that the pe rformance of the laboratories selected was

acceptable by conducting QC checks of the analytical data. Data review chemists at ERG

prepared written data review narr atives describing any qualifications of the analytical data from

this episode. The data review narrat ives are included in Appendix B.

5.2 Field Quality Control

This subsection discusses the bottle blanks, equipment blanks, field blanks, and field

duplicate sample results. Section 3.8 of the Samp ling Plan discusses fiel d QC specifications.

5.2.1 Bottle Blanks

ERG collects bottle blanks to evaluate possibl e contamination from the sample collection

bottles. Bottle blanks were collected and analyzed for metals (EPA Method 200.8, 200.7, and

1631E) by the supplier of the precleane d bottles, Frontier Global Sciences.

Frontier Global Sciences collected the bottl e blanks for the metals sample bottles by

filling the precleaned bottle with reagent water, pres erving the sample with nitric acid to a pH <2

S.U. Frontier Global Sciences then an alyzed the samples using EPA Method 1638.

Frontier Global Sciences collected the bottl e blanks for the mercury sample bottles by

filling the precleaned bottle with reagent wa ter, preserving the sample with bromine

monochloride. Frontier Global Sciences then analyzed the samples using EPA Method 1631E.

Albion Environmental collected the bottle bl anks for the 10- and 20-liter composite

containers by filling the container with approx imately two liters of ASTM Type 1 water and

allowing it to soak for approximately 24 hours. During this period, th e laboratory shook the

container periodically and changed its orientation to expose all surfaces of the container to the

ASTM Type 1 water. Albion Environmental th en shook the 10- and 20-liter containers and

poured a representative sample into a precleaned LDPE sample bottle. The blank samples were

then preserved and analyzed according to the analytical methods (i.e., EPA Method 1638).

No metals were detected in the bottle bl anks, except for aluminum in the 10-liter

composite containers. Aluminum was detected in the 10-L container at a concentration of 4.71

ug/L, which is well below the quantitation limit us ed for the sample analyses (i.e., 200 ug/L);

therefore, this contamination di d not affect the resu lts of the sampling episode. Appendix Table

# 5-2 A-14 presents all of the analytical results from the bottle blank an alyses for the bottles used to

collect the metals and mercury samples.

5.2.2 Equipment Blanks

EPA collects equipment blanks to evaluate possible contamination from the equipment

used for sample collection. The techniques used to collect field blanks (a s described in Section

5.2.3) include the sampling equipment and ther efore would identify whether the sampling

equipment was introducing contamination. In a ddition, Frontier Global Sciences collected and

analyzed equipment blanks for metals (EPA Method 1638 and 1631E) for each type of

precleaned equipment supp lied for the episode.

Frontier Global Sciences collected the equipment blanks for the capsule filters and

fabricated tubing sets by pumping reagent wa ter through the cleaned and fully assembled

equipment sets (with the filter attached) into a cleaned bottle (an HDPE bottle for metals and a

glass bottle for mercury). The blank samples were then preserved and analyzed according to the

analytical methods (EPA Method 1638 and 1631E), as described in Section 5.2.1 for the bottle

blank samples.

No other metals were detected in the e quipment blanks, indicating that there was no

contamination from the sampling equipment. Appe ndix Table A-14 presents all of the analytical

results from the bottle blank and equipment blank analyses for all of the equipment used for the

collection of metals and mercury samples.

5.2.3 Field Blanks

The sampling team collected field blanks (SP-4 and SP-5) to evaluate possible

contamination from sampling equipment, samp ling equipment decontamination procedures,

sample collection procedures, or atmospheric contamination. EPA analyzed the field blank

samples for the total and dissolved metals and total and dissolved mercury samples 2



# .

The total mercury, total metals by 200.8, and total metals by 200.7 field blank samples

for the influent to the FGD wastewater treatm ent system (SP-6) were collected by pouring

ASTM Type 1 water through a precle aned funnel attached to the si licone tubing used for sample

collection. To prevent potential atmospheric deposition, the sampling team shrouded the blank

water and funnel with a plastic bag while pouring the blank water into the funnel and placed the

sample bottles in a “cleanbox.” Prior to filli ng the sample bottles, the tubing was purged with

approximately 1 liter of blank water. The ASTM Type 1 water flowed through the funnel, tubing,

and “Y” splitter, and was poured into the sample bottles. EPA collected the field blank samples

as “true” split samples with Keystone’s representa tive, using the same procedure discussed in the

sample collection description (Section 3.1).

2 

# EPA did not collect a dissolved mercury field blank samp le because the sample filtration was performed at the

laboratory to minimize potential mercury contamination. The laboratory performed a filtration blank prior to

filtering the sample, which is assessed as the field blank fo r the dissolved mercury sample. Mercury was detected at

a concentration of 0.46 ng/L in the filtration blank perf ormed for the fourth day of samples, which includes the

influent to the FGD wastewater treatment system (day 2), the third and fourth grab sample for the effluent from the

FGD wastewater treatment system (day 3), and the first and second grab samples for the effluent from the FGD

wastewater treatment system (day 4). Mercury was not detected above the method detection limit (0.24 ng/L) in the

filtration blanks performed for the first, second, third, or fifth day of samples.

# 5-3 The dissolved metals by 200.8, dissolved metals by 200.7, and dissolved hexavalent

chromium field blank samples for the influent to the FGD wastew ater treatment system (SP-4)

were collected by pouring ASTM Type 1 water th rough the funnel and tubi ng and into a 10-liter

composite container. After approximately 110 minutes, the sampling team began pumping off

the ASTM Type 1 water from the 10-liter composite container. Prior to filling the sample bottles,

the tubing was purged with approximately one liter of blank water. The sample bottles were

placed in a “cleanbox” and the ASTM Type 1 water was pumped through the tubing, capsule

filter, and “Y” splitter, and into the sample bo ttles. EPA collected the field blank samples as

“true” split samples with Keystone’s representa tive, using the same procedure discussed in the

sample collection description (Section 3.1).

The total mercury field blank sample for the effluent from the FGD wastewater treatment

system (SP-5) was collected by shrouding one of th e three taps on the sample tap splitter with a

clear plastic bag. Before purgi ng the sample tap, ASTM Type 1 water was poured directly into

the sample bottles under the clear plastic bag.

The total and dissolved metals by 200.7 and metals by 200.8 field blank samples for the

effluent from the FGD wastewater treatment sy stem (SP-5) were collected by filling a 20-liter

composite container with ASTM Ty pe 1 water. The same T-splitter tubing used to fill the metals

composite container was used with a pump to f ill the 20-liter field blank composite container.

Prior to attaching one end of the tubing to the sample tap, it was placed directly into the

container holding ASTM Type 1 water. The othe r end of the tubing was attached to the vented

cap on top of the 20-liter field blank composite container. After enough volume was pumped into

the 20-liter field blank composite container, the vented cap was replaced with a closed cap and

the container was placed on ice in a covered plastic trash can. Th e vented cap used for the field

blank collection was the same cap that was late r used for the metals composite container.

After 24 hours, the ASTM Type 1 water in th e 20-liter field bla nk composite container

was pumped off into the individual sample bottles. The sample bottles were placed in a

“cleanbox” and the ASTM Type 1 water was pump ed through the tubing and “Y” splitter, and

into the sample bottles. EPA collected the fiel d blank samples as “true” split samples with

Keystone’s representative, us ing the same procedure discu ssed in the sample collection

description (Section 3.1). Prior to filling the sample bot tles, the tubing was purged with

approximately one liter of ASTM Type 1 water. First the samplers collected the total metals by

200.8 and total metals by 200.7 field blank samples. Then the sampling team attached a filter to

the tubing set and purged the tubing with approximately one liter of ASTM Type 1 water. The

samplers then collected the dissolved metals by 200.8, dissolved metals by 200.7, and dissolved

hexavalent chromium field blank samples.

No metals were detected in the field blank samples above the quantitation limit,

indicating that there was no cont amination from the sample collection procedures. Appendix

Tables A-15 through A-19 present al l the analytical results for the field blanks from each of the

sampling points, including all qua lified results and all results th at were measured above the

method detection limit, but below the quantitation limit (i.e., J-values).

5.2.4 Field Duplicates

The sampling team collected field duplicate samples to assess the sampling measurement

precision for the episode. Field dupl icate samples are separate samp les collected from the same

# 5-4 location as the original sample. The duplicate is filled immediately after the original sample and

is stored and analyzed independently. The RPD be tween the two sample results is examined to

determine the precision of the data. EPA used the following equation to calculate the RPD for

the duplicate sample results.



# 100

2 D S D S (%) RPD         

 (5-1)

where:

S = concentration of the analyte from original sample analysis;

D = concentration of the analyte from the duplicate sample analysis; and

RPD = relative percent difference between the original and duplicate sample

result.

During this sampling episode, EPA collected du plicate samples for the effluent from the

FGD wastewater treatment system (SP-3) durin g day 2 of the sampling episode. The duplicate

samples were analyzed for all analytes. Table 5-1 presents analytical results and the RPD for SP3. Results are rounded to three significant digits . Appendix Tables A-10 a nd A-13 present all the

analytical results for the efflue nt from the FGD wastewater treat ment system (SP-2) Day 2 and

the duplicate of the effluent from the FGD wastew ater treatment system ( SP-3) sample analyses,

including all qualified results a nd all results that were measur ed above the method detection

limit, but below the quantita tion limit (i.e., J-values).

# 5-5< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).NC – Not calculated.ND – Not detected (number in parentheses is the quantitation limit).NQ – Analyte was measured above the method detection limit, butbelow the quantitation limit (number shown in parentheses is the quantitation limit). The analytical result ispresented in Appendix A with a J flag designation. A “NQ” for the 4-day average result indicates that all results were below the quantitation limit, but at least one result is a Jvalue.B – Analyte was found in the blank and sample.Min – Minimum value.S – Seed correction blank recovery low.Table 5-1. Field Duplicate Results – Effluent from FGD Wastewater Treatment System, KeystoneAnalyteMethodUnitsOriginal Effluent fromFGD WastewaterTreatment System, Day 2Concentration (SP-2)Duplicate Effluent fromFGD WastewaterTreatment SystemConcentration (SP-4)AverageResultRelativePercentDifferenceClassicalsAmmonia350.1mg/L12.012.012.00.00Nitrate Nitrite as N353.2mg/L9.409.309.351.07Nitrogen, Total Kjeldahl351.2mg/L19.0B21.0B20.010.0Biochemical Oxygen Demand5210Bmg/L7.10S,Min6.90S,Min7.002.86Chemical Oxygen Demand410.4mg/L31024027525.5Chloride300.0mg/L15,00015,00015,0000.00Sulfate300.0mg/L1,4001,3001,3507.41Cyanide, Total4500 CN Emg/LNQ (0.100)0.180< 0.115NCTotal Dissolved Solids2540Cmg/L31,00030,00030,5003.28Total Suspended Solids2540Dmg/L10.054.032.0138Phosphorus, Total365.1mg/L1.101.101.100.00Total MetalsAluminum200.7ug/LNQ (200)BND (200)NQ (200)NCAntimony200.8ug/LND (2.00)NQ (2.00)NQ (2.00)NCArsenic200.8ug/L4.10NQ (4.00)< 3.05NCBarium200.7ug/L3003003000.00Beryllium200.7ug/LND (2.00)ND (2.00)ND (2.00)NCBoron200.7ug/L290,000B310,000B300,0006.67Cadmium200.8ug/LNQ (4.00)NQ (4.00)NQ (4.00)NCCalcium200.7ug/L6,000,0006,200,0006,100,0003.28Chromium200.8ug/LND (8.00)ND (8.00)ND (8.00)NC

# 5-6< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).NC – Not calculated.ND – Not detected (number in parentheses is the quantitation limit).NQ – Analyte was measured above the method detection limit, butbelow the quantitation limit (number shown in parentheses is the quantitation limit). The analytical result ispresented in Appendix A with a J flag designation. A “NQ” for the 4-day average result indicates that all results were below the quantitation limit, but at least one result is a Jvalue.B – Analyte was found in the blank and sample.Min – Minimum value.S – Seed correction blank recovery low.Table 5-1. Field Duplicate Results – Effluent from FGD Wastewater Treatment System, KeystoneAnalyteMethodUnitsOriginal Effluent fromFGD WastewaterTreatment System, Day 2Concentration (SP-2)Duplicate Effluent fromFGD WastewaterTreatment SystemConcentration (SP-4)AverageResultRelativePercentDifferenceCobalt200.7ug/LND (20.0)ND (20.0)ND (20.0)NCCopper200.8ug/LND (4.00)ND (4.00)ND (4.00)NCIron200.7ug/LNQ (200)BNQ (200)BNQ (200)NCLead200.8ug/LND (2.00)ND (2.00)ND (2.00)NCMagnesium200.7ug/L2,000,000B2,000,000B2,000,0000.00Manganese200.7ug/L23,000B23,000B23,0000.00Mercury1631Eng/L1101051084.65Molybdenum200.7ug/L44.043.043.52.30Nickel200.8ug/L7.507.507.500.00Selenium200.8ug/L3503503500.00Silver200.8ug/LND (2.00)ND (2.00)ND (2.00)NCSodium200.7ug/L290,000290,000290,0000.00Thallium200.8ug/L10.011.010.59.52Tin200.7ug/LND (200)ND (200)ND (200)NCTitanium200.7ug/LNQ (20.0)NQ (20.0)NQ (20.0)NCVanadium200.8ug/LNQ (10.0)BNQ (10.0)BNQ (10.0)NCZinc200.7ug/LND (40.0)ND (40.0)ND (40.0)NCDissolved MetalsAluminum200.7ug/LND (200)ND (200)ND (200)NCAntimony200.8ug/LNQ (2.00)ND (2.00)NQ (2.00)NCArsenic200.8ug/LNQ (4.00)NQ (4.00)NQ (4.00)NCBarium200.7ug/L3002902953.39Beryllium200.7ug/LND (2.00)ND (2.00)ND (2.00)NCBoron200.7ug/L300,000B290,000B295,0003.39

# 5-7< - Average result includes at least one value measured belowthe quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quantitation limit).NC – Not calculated.ND – Not detected (number in parentheses is the quantitation limit).NQ – Analyte was measured above the method detection limit, butbelow the quantitation limit (number shown in parentheses is the quantitation limit). The analytical result ispresented in Appendix A with a J flag designation. A “NQ” for the 4-day average result indicates that all results were below the quantitation limit, but at least one result is a Jvalue.B – Analyte was found in the blank and sample.Min – Minimum value.S – Seed correction blank recovery low.Table 5-1. Field Duplicate Results – Effluent from FGD Wastewater Treatment System, KeystoneAnalyteMethodUnitsOriginal Effluent fromFGD WastewaterTreatment System, Day 2Concentration (SP-2)Duplicate Effluent fromFGD WastewaterTreatment SystemConcentration (SP-4)AverageResultRelativePercentDifferenceCadmium200.8ug/LNQ (4.00)NQ (4.00)NQ (4.00)NCCalcium200.7ug/L6,000,0006,000,0006,000,0000.00Chromium200.8ug/LND (8.00)ND (8.00)ND (8.00)NCChromium (VI)218.6ug/LND (10.0)ND (10.0)ND (10.0)NCCobalt200.7ug/LND (20.0)ND (20.0)ND (20.0)NCCopper200.8ug/LND (4.00)ND (4.00)ND (4.00)NCIron200.7ug/LND (200)ND (200)ND (200)NCLead200.8ug/LND (2.00)ND (2.00)ND (2.00)NCMagnesium200.7ug/L2,000,0001,900,0001,950,0005.13Manganese200.7ug/L23,00022,00022,5004.44Mercury1631Eng/L16.214.315.312.5Molybdenum200.7ug/L43.043.043.00.00Nickel200.8ug/L6.806.406.606.06Selenium200.8ug/L370B350B3605.56Silver200.8ug/LND (2.00)ND (2.00)ND (2.00)NCSodium200.7ug/L290,000290,000290,0000.00Thallium200.8ug/L10.011.010.59.52Tin200.7ug/LND (200)ND (200)ND (200)NCTitanium200.7ug/LNQ (20.0)NQ (20.0)NQ (20.0)NCVanadium200.8ug/LNQ (10.0)NQ (10.0)NQ (10.0)NCZinc200.7ug/LND (40.0)NQ (40.0)NQ (40.0)NC

# 6-1 6. R EFERENCES



# 1. Eastern Research Group, Inc., 2010. Sampling Plan, RRI Energy’s Keystone Generating

Station. September 3. DCN SE00504.

2. Eastern Research Group, Inc., 2010. Quality Assurance Project Plan for the Steam

Electric Effluent Guidelines Rulemaking . (October). DCN SE00058.

3. U.S. EPA. 2001. Method 200.7: Determination of Metals and Trace Elements in Water

and Wastes by Inductively C oupled Plasma – Atomic Emission Spectrometry. Revision

4.4.

4. U.S. EPA. 1994. Method 200.7: Determination of Trace Elements in Waters and Wastes

by Inductively Coupled Plasma - Mass Spectrometry. Revision 5.4.

# Appendix A

ANALYTICAL RESULTS

# A-1ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-1. Biphasic Sample Results for Classicals and Total metals, Influent to FGD Wastewater TreatmentSystem, Day 1 Analytical Results, KeystoneAnalyteAqueous Phase Result(mg/L)Solid Phase Result(mg/kg)Calculated TotalSample Result(mg/L)ClassicalsAmmonia13P,Est34P,Est13.3Nitrate Nitrite as N12P,Est6.6J,P11.4Nitrogen, Total Kjeldahl29B,L,P,Est900P,Est57.2Chloride16,00013,00015,400Sulfate1,30021,0001,920Cyanide, Total0.36H,P,Est0.15J,H,P0.341Phosphorus, Total0.016J,P33P,Est1.12Total MetalsAluminumND (200)U,^30,0001,000,000Antimony1.6J1.344.9Arsenic3.5J923,080Barium27058019,600BerylliumND (2)U2.2J73.5Boron410,000B830411,000Cadmium860.7104Calcium5,000,00063,0006,780,000ChromiumND (8)U90B3,010Cobalt50015968Copper32612,070IronND (200)U80,0002,670,000Lead7.5341,140Magnesium2,900,0005,2002,880,000Manganese470,0001,400486,000

# A-2ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-1. Biphasic Sample Results for Classicals and Total metals, Influent to FGD Wastewater TreatmentSystem, Day 1 Analytical Results, KeystoneAnalyteAqueous Phase Result(mg/L)Solid Phase Result(mg/kg)Calculated TotalSample Result(mg/L)Mercury2,55017,500533,000MolybdenumND (40)U17568Nickel2,100110B5,640Selenium1,100954,200SilverND (2)U0.237.68Sodium340,000710J341,000Thallium171.152.6TinND (200)UND (50)UND (1,860)TitaniumND (20)U2207,350VanadiumND (10)U1204,010Zinc931806,100

# A-3ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-2. Biphasic Sample Results for Classicals andTotal Metals, Influent to FGD Wastewater TreatmentSystem, Day 2 Analytical Results, KeystoneAnalyteAqueous Phase Result(mg/L)Solid Phase Result(mg/kg)Calculated TotalSample Result (mg/L)ClassicalsAmmonia14P,Est29P,Est14.1Nitrate Nitrite as N14P,Est5J,P13.4Nitrogen, Total Kjeldahl32B,L,P,Est840P,Est54.7Chloride16,0004,10015,300Sulfate1,30027,0002,020Cyanide, Total0.2H,P,Est0.15J,H,P0.194Phosphorus, TotalND (0.05)U,P380P,Est11Total MetalsAluminumND (200)U30,000871,000Antimony1.2J0.9829.6Arsenic2.2J852,470Barium27040011,900BerylliumND (2)U2.1J61Boron390,000B730391,000Cadmium770.7494.5Calcium4,800,00073,0006,670,000ChromiumND (8)U83B2,410Cobalt48015891Copper7.1591,720Iron47J80,0002,320,000Lead3.531904Magnesium2,800,0004,3002,780,000Manganese450,0001,100459,000Mercury3,83017,800515,000MolybdenumND (40)U16465

# A-4ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-2. Biphasic Sample Results for Classicals andTotal Metals, Influent to FGD Wastewater TreatmentSystem, Day 2 Analytical Results, KeystoneAnalyteAqueous Phase Result(mg/L)Solid Phase Result(mg/kg)Calculated TotalSample Result (mg/L)Nickel2,200100B4,990Selenium1,000963,740SilverND (2)U0.25.81Sodium300,000550J300,000Thallium161.250TinND (200)UND (49)UND (1,610)TitaniumND (20)U1905,520VanadiumND (10)U1103,190Zinc881805,310

# A-5ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-3. Biphasic Sample Results for Classicals and Total Metals, Influent to FGD Wastewater TreatmentSystem, Day 3 Analytical Results, KeystoneAnalyteAqueous Phase Result(mg/L)Solid Phase Result(mg/kg)Calculated TotalSample Result (mg/L)ClassicalsAmmonia13P,Est32P,Est13.3Nitrate Nitrite as N14P,Est4.3J,P13.4Nitrogen, Total Kjeldahl31B,L,P,Est710P,Est51.5Chloride16,0004,50015,300Sulfate1,30026,0002,040Cyanide, Total0.29H,P,Est0.19J,H,P0.28Phosphorus, TotalND (0.05)U,P34P,Est1.06Total MetalsAluminumND (200)U,^30,000938,000Antimony1.3J1.238.7Arsenic1.8J872,720Barium28032010,300BerylliumND (2)U2.2J68.8Boron400,000B780403,000Cadmium730.894Calcium5,000,00079,0007,200,000ChromiumND (8)U84B2,630Cobalt47015913Copper9.8581,820IronND (200)U79,0002,470,000LeadND (2)U321,000Magnesium2,800,0004,6002,790,000Manganese440,0001,200454,000Mercury3,51017,500559,000

# A-6ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-3. Biphasic Sample Results for Classicals and Total Metals, Influent to FGD Wastewater TreatmentSystem, Day 3 Analytical Results, KeystoneAnalyteAqueous Phase Result(mg/L)Solid Phase Result(mg/kg)Calculated TotalSample Result (mg/L)MolybdenumND (40)U16500Nickel2,000100B5,020Selenium1,0001104,380SilverND (2)U0.195.94Sodium330,000570J330,000Thallium151.354.8TinND (200)UND (45)UND (1,600)TitaniumND (20)U1905,940VanadiumND (10)U1103,440Zinc841705,390

# A-7ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-4. Biphasic Sample Results for Classicalsand Total Metals, Influent to FGD WastewaterTreatment System, Day 4 Analytical Results, KeystoneAnalyteAqueous Phase Result(mg/L)Solid Phase Result(mg/kg)Calculated TotalSample Result (mg/L)ClassicalsAmmonia12P,Est32P,Est11.8Nitrate Nitrite as N12P,Est5.1J,P11Nitrogen, Total Kjeldahl26B,L,P,Est880P,Est49.6Chloride16,0004,90014,600Sulfate1,30026,0001,950Cyanide, Total0.31H,P,Est0.12J,H,P0.283Phosphorus, Total0.005J,P6.5P,Est0.198Total MetalsAluminum15J,^31,000922,000Antimony1J1.339.6Arsenic2.3J862,560Barium26034010,300BerylliumND (2)U2.2J65.4Boron410,000B800394,000Cadmium831.1108Calcium5,000,00074,0006,710,000ChromiumND (8)U87B2,590Cobalt46015861Copper6.71103,280IronND (200)U79,0002,350,000LeadND (2)U33981Magnesium2,900,0004,5002,750,000Manganese450,0001,200442,000Mercury3,75020,100622,000

# A-8ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-4. Biphasic Sample Results for Classicalsand Total Metals, Influent to FGD WastewaterTreatment System, Day 4 Analytical Results, KeystoneAnalyteAqueous Phase Result(mg/L)Solid Phase Result(mg/kg)Calculated TotalSample Result (mg/L)MolybdenumND (40)U17506Nickel2,000160B6,560Selenium1,200984,000SilverND (2)U13387Sodium340,000550J323,000Thallium161.456.1TinND (200)UND (45)UND (1,520)TitaniumND (20)U2106,240VanadiumND (10)U1103,270Zinc1201805,460

# A-9NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery lowU – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-5. Influent to FGD Wastewater TreatmentSystem, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationClassical Pollutants - TotalAmmonia350.1mg/lNA 0.3434.0713.3Nitrate Nitrite as N353.2mg/lNA0.05960.85511.4Nitrogen, Total Kjeldahl351.2mg/lNA2.4313.457.2Biochemical Oxygen Demand5210Bmg/L10.32.510S,MinChemical Oxygen Demand410.4mg/L401608001,400Chloride300.0, 9056mg/lNA1251,45015,400Sulfate300.0, 9056mg/lNA14.13171,920Cyanide, Total4500 CN Emg/lNA0.0220.110.341Total Dissolved Solids2540Cmg/L116033035,000D,H,EstTotal Suspended Solids2540Dmg/L19233026,000Phosphorus, Total365.1mg/lNA0.03170.211.12Classicals Pollutants - Solid (dry weight)Ammonia350.1mg/Kg14.11034P,EstNitrate Nitrite as N353.2mg/Kg10.72206.6J,PNitrogen, Total Kjeldahl351.2mg/Kg562260900P,EstChloride9056mg/Kg50971,50013,000Sulfate9056mg/Kg50852,50021,000Cyanide, Total4500 CN Emg/Kg10.10.50.15J,H,PPhosphorus, Total365.1mg/Kg10.814.933P,EstClassicals Pollutants -Filtered AqueousAmmonia350.1mg/L10.22413P,EstNitrate Nitrite as N353.2mg/L20.0380.212P,Est

# A-10NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery lowU – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-5. Influent to FGD Wastewater TreatmentSystem, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationNitrogen, Total Kjeldahl351.2mg/L50.38529B,L,P,EstChloride300.0mg/L5001301,50016,000Sulfate300.0mg/L50122501,300Cyanide, Total4500 CN Emg/L10.020.10.36H,P,EstPhosphorus, Total365.1mg/L10.0050.050.016J,PMetals - Calculated TotalAluminum200.7, 6010Bug/LNA2661,8601,000,000Antimony200.8, 6020ug/LNA1.6115.244.9Arsenic200.8, 6020ug/LNA84.61,0103,080Barium200.7, 6010Bug/LNA1518619,600Beryllium200.7, 6010Bug/LNA6.0185.473.5Boron200.7, 6010Bug/LNA3236,340411,000Cadmium200.8, 6020ug/LNA6.1525.4104Calcium200.7, 6010Bug/LNA3,93017,7006,780,000Chromium200.8, 6020ug/LNA8.0920.83,010Cobalt200.7, 6010Bug/LNA17.7186968Copper200.8, 6020ug/LNA24.387.22,070Iron200.7, 6010Bug/LNA6642,6602,670,000Lead200.8, 6020ug/LNA1.8811.91,140Magnesium200.7, 6010Bug/LNA1,11012,7002,880,000Manganese200.7, 6010Bug/LNA28.8634486,000Mercury1631E, FGS-069ng/LNA21,50059,000533,000Molybdenum200.7, 6010Bug/LNA44.9368568

# A-11NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery lowU – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-5. Influent to FGD Wastewater TreatmentSystem, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationNickel200.8, 6020ug/LNA5.8828.75,640Selenium200.8, 6020ug/LNA11.651.84,200Silver200.8, 6020ug/LNA1.898.557.68Sodium200.7, 6010Bug/LNA9,85092,800341,000Thallium200.8, 6020ug/LNA0.6738.5552.6Tin200.7, 6010Bug/LNA1551,860ND (1,860)Titanium200.7, 6010Bug/LNA24.51867,350Vanadium200.8, 6020ug/LNA4.1342.44,010Zinc200.7, 6010Bug/LNA75.35386,100Metals - DissolvedAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.722ND (2)UArsenic200.8ug/L21.242.8JBarium200.7ug/L22.520400Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000410,000BCadmium200.8ug/L21.2493Calcium200.7ug/L501,70010,0005,200,000Chromium200.8ug/L23.38ND (8)UChromium (VI)218.6ug/L51.9610ND (10)UCobalt200.7ug/L21.120500Copper200.8ug/L20.9643.4JIron200.7ug/L23220044J

# A-12NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery lowU – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-5. Influent to FGD Wastewater TreatmentSystem, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationLead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0002,900,000Manganese200.7ug/L5013500470,000Mercury1631Eng/L10024.150.51,410Molybdenum200.7ug/L21.640ND (40)UNickel200.8ug/L20.8942,300Selenium200.8ug/L51.6101,100BSilver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000330,000Thallium200.8ug/L20.47229Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.6203.4JVanadium200.8ug/L21.7101.7JZinc200.7ug/L29.14082Metals - Filtered AqueousAluminum200.7ug/L29.4200ND (200)U,^Antimony200.8ug/L20.7221.6JArsenic200.8ug/L21.243.5JBarium200.7ug/L22.520270Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000410,000BCadmium200.8ug/L105.92086Calcium200.7ug/L501,70010,0005,000,000

# A-13NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery lowU – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-5. Influent to FGD Wastewater TreatmentSystem, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationChromium200.8ug/L23.38ND (8)UCobalt200.7ug/L21.120500Copper200.8ug/L20.96432Iron200.7ug/L232200ND (200)ULead200.8ug/L20.7327.5Magnesium200.7ug/L5054010,0002,900,000Manganese200.7ug/L5013500470,000Mercury1631Eng/L5001222552,550Molybdenum200.7ug/L21.640ND (40)UNickel200.8ug/L104.5202,100Selenium200.8ug/L103.1201,100Silver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000340,000Thallium200.8ug/L20.47217Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.620ND (20)UVanadium200.8ug/L21.710ND (10)UZinc200.7ug/L29.14093Metals - Solid (dry weight)Aluminum6010Bmg/kg57.75030,000Antimony6020mg/kg20.0280.41.3Arsenic6020mg/kg502.53092Barium6010Bmg/kg50.385580

# A-14NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery lowU – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-5. Influent to FGD Wastewater TreatmentSystem, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationBeryllium6010Bmg/kg50.162.52.2JBoron6010Bmg/kg54.950830Cadmium6020mg/kg20.0190.20.7Calcium6010Bmg/kg57025063,000Chromium6020mg/kg20.150.490BCobalt6010Bmg/kg50.5515Copper6020mg/kg100.72.561Iron6010Bmg/kg5197480,000Lead6020mg/kg20.0360.334Magnesium6010Bmg/kg518995,200Manganese6010Bmg/kg50.551,400MercuryFGS-069ng/g40,0007041,94017,500Molybdenum6010Bmg/kg51.39.917Nickel6020mg/kg20.050.3110BSelenium6020mg/kg20.260.9995Silver6020mg/kg20.040.20.23Sodium6010Bmg/kg52902,500710JThallium6020mg/kg20.0070.21.1Tin6010Bmg/kg54.550ND (50)UTitanium6010Bmg/kg50.695220Vanadium6020mg/kg20.0760.99120Zinc6010Bmg/kg5215180

# A-15NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-6. Influent to FGD Wastewater TreatmentSystem, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationClassical Pollutants - TotalAmmonia350.1mg/lNA0.3284.0814.1Nitrate Nitrite as N353.2mg/lNA0.05670.77113.4Nitrogen, Total Kjeldahl351.2mg/lNA2.11254.7Biochemical Oxygen Demand5210Bmg/L10.32.59.5S,MinChemical Oxygen Demand410.4mg/L1041200420Chloride300.0, 9056mg/lNA1241,44015,300Sulfate300.0, 9056mg/lNA16.33792,020Cyanide, Total4500 CN Emg/lNA0.02190.1090.194Total Dissolved Solids2540Cmg/L116033035,000H,EstTotal Suspended Solids2540Dmg/L114050029,000Phosphorus, Total365.1mg/lNA0.241.4711Classicals Pollutants - Solid (dry weight)Ammonia350.1mg/Kg14.11029P,EstNitrate Nitrite as N353.2mg/Kg10.71205J,PNitrogen, Total Kjeldahl351.2mg/Kg560250840P,EstChloride9056mg/Kg20385804,100Sulfate9056mg/Kg1001704,90027,000Cyanide, Total4500 CN Emg/Kg10.10.50.15J,H,PPhosphorus, Total365.1mg/Kg108.149380P,EstClassicals Pollutants -Filtered AqueousAmmonia350.1mg/L10.22414P,EstNitrate Nitrite as N353.2mg/L20.0380.214P,EstNitrogen, Total Kjeldahl351.2mg/L50.38532B,L,P,Est

# A-16NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-6. Influent to FGD Wastewater TreatmentSystem, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationChloride300.0mg/L5001301,50016,000Sulfate300.0mg/L50122501,300Cyanide, Total4500 CN Emg/L10.020.10.2H,P,EstPhosphorus, Total365.1mg/L10.0050.05ND (0.05)U,PMetals - Calculated TotalAluminum200.7, 6010Bug/LNA2271,610871,000Antimony200.8, 6020ug/LNA1.4112.129.6Arsenic200.8, 6020ug/LNA14.21582,470Barium200.7, 6010Bug/LNA13.116111,900Beryllium200.7, 6010Bug/LNA5.3271.661Boron200.7, 6010Bug/LNA3016,170391,000Cadmium200.8, 6020ug/LNA6.0924.294.5Calcium200.7, 6010Bug/LNA3,59016,5006,670,000Chromium200.8, 6020ug/LNA6.9117.82,410Cobalt200.7, 6010Bug/LNA15.3161891Copper200.8, 6020ug/LNA19.267.71,720Iron200.7, 6010Bug/LNA5532,3102,320,000Lead200.8, 6020ug/LNA1.629.74904Magnesium200.7, 6010Bug/LNA1,03012,3002,780,000Manganese200.7, 6010Bug/LNA26.6617459,000Mercury1631E, FGS-069ng/LNA20,00054,900515,000Molybdenum200.7, 6010Bug/LNA39.3320465Nickel200.8, 6020ug/LNA5.5726.84,990Selenium200.8, 6020ug/LNA9.9144.53,740

# A-17NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-6. Influent to FGD Wastewater TreatmentSystem, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationSilver200.8, 6020ug/LNA1.617.125.81Sodium200.7, 6010Bug/LNA9,290117,000300,000Thallium200.8, 6020ug/LNA0.6267.1250Tin200.7, 6010Bug/LNA1321,610ND (1,610)Titanium200.7, 6010Bug/LNA21.31615,520Vanadium200.8, 6020ug/LNA3.59353,190Zinc200.7, 6010Bug/LNA63.84745,310Metals - DissolvedAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.722ND (2)UArsenic200.8ug/L21.243.1JBarium200.7ug/L22.520380Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000380,000BCadmium200.8ug/L21.2484Calcium200.7ug/L501,70010,0005,000,000Chromium200.8ug/L23.38ND (8)UChromium (VI)218.6ug/L51.9610ND (10)UCobalt200.7ug/L21.120480Copper200.8ug/L20.9642.4JIron200.7ug/L23220069JLead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0002,800,000Manganese200.7ug/L5013500440,000

# A-18NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-6. Influent to FGD Wastewater TreatmentSystem, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationMercury1631Eng/L10024.150.5899Molybdenum200.7ug/L21.640ND (40)UNickel200.8ug/L20.8942,200Selenium200.8ug/L51.6101,200BSilver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000300,000Thallium200.8ug/L20.47226Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.6203.5JVanadium200.8ug/L21.710ND (10)UZinc200.7ug/L29.14071Metals - Filtered AqueousAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.7221.2JArsenic200.8ug/L21.242.2JBarium200.7ug/L22.520270Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000390,000BCadmium200.8ug/L105.92077Calcium200.7ug/L501,70010,0004,800,000Chromium200.8ug/L23.38ND (8)UCobalt200.7ug/L21.120480Copper200.8ug/L20.9647.1Iron200.7ug/L23220047J

# A-19NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-6. Influent to FGD Wastewater TreatmentSystem, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationLead200.8ug/L20.7323.5Magnesium200.7ug/L5054010,0002,800,000Manganese200.7ug/L5013500450,000Mercury1631Eng/L5001222553,830Molybdenum200.7ug/L21.640ND (40)UNickel200.8ug/L104.5202,200Selenium200.8ug/L103.1201,000Silver200.8ug/L20.592ND (2)USodium200.7ug/L1092050,000300,000Thallium200.8ug/L20.47216Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.620ND (20)UVanadium200.8ug/L21.710ND (10)UZinc200.7ug/L29.14088Metals - Solid (dry weight)Aluminum6010Bmg/kg57.54930,000Antimony6020mg/kg20.0250.350.98Arsenic6020mg/kg100.455.385Barium6010Bmg/kg50.374.9400Beryllium6010Bmg/kg50.162.42.1JBoron6010Bmg/kg54.849730Cadmium6020mg/kg20.0170.180.74Calcium6010Bmg/kg56824073,000Chromium6020mg/kg20.130.3583B

# A-20NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-6. Influent to FGD Wastewater TreatmentSystem, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationCobalt6010Bmg/kg50.494.915Copper6020mg/kg100.632.259Iron6010Bmg/kg5187380,000Lead6020mg/kg20.0320.2731Magnesium6010Bmg/kg518974,300Manganese6010Bmg/kg50.494.91,100MercuryFGS-069ng/g40,0006911,90017,800Molybdenum6010Bmg/kg51.39.716Nickel6020mg/kg20.0450.27100BSelenium6020mg/kg20.240.8896Silver6020mg/kg20.0360.180.2Sodium6010Bmg/kg52902,400550JThallium6020mg/kg20.00620.181.2Tin6010Bmg/kg54.449ND (49)UTitanium6010Bmg/kg50.684.9190Vanadium6020mg/kg20.0680.88110Zinc6010Bmg/kg51.915180

# A-21NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-7. Influent to FGD Wastewater TreatmentSystem, Day 3 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationClassical Pollutants - TotalAmmonia 350.1 mg/l NA 0.336 4.1 13.3Nitrate Nitrite as N 353.2 mg/l NA 0.0581 0.814 13.4Nitrogen, Total Kjeldahl 351.2 mg/l NA 2.27 12.9 51.5Biochemical Oxygen Demand 5210B mg/L 1 0.3 2.5 13 S,MinChemical Oxygen Demand 410.4 mg/L 5 20 100 360Chloride 300.0, 9056 mg/l NA 124 1,440 15,300Sulfate 300.0, 9056 mg/l NA 16.7 390 2,040Cyanide, Total 4500 CN E mg/l NA 0.022 0.11 0.28Total Dissolved Solids 2540C mg/L 1 160 330 37,000 H,EstTotal Suspended Solids 2540D mg/L 1 92 330 20,000Phosphorus, Total 365.1 mg/l NA 0.0294 0.197 1.06Classicals Pollutants - Solid (dry weight)Ammonia 350.1 mg/Kg 1 4.1 10 32 P,EstNitrate Nitrite as N 353.2 mg/Kg 1 0.71 20 4.3 J,PNitrogen, Total Kjeldahl 351.2 mg/Kg 5 61 260 710 P,EstChloride 9056 mg/Kg 20 38 580 4,500Sulfate 9056 mg/Kg 100 170 4,900 26,000Cyanide, Total 4500 CN E mg/Kg 1 0.1 0.5 0.19 J,H,PPhosphorus, Total 365.1 mg/Kg 1 0.79 4.8 34 P,EstClassicals Pollutants -Filtered AqueousAmmonia 350.1 mg/L 1 0.22 4 13 P,EstNitrate Nitrite as N 353.2mg/L 2 0.038 0.2 14 P,EstNitrogen, Total Kjeldahl 351.2 mg/L 5 0.38 5 31 B,L,P,EstChloride 300.0 mg/L 500 130 1,500 16,000Sulfate 300.0 mg/L 50 12 250 1,300

# A-22NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-7. Influent to FGD Wastewater TreatmentSystem, Day 3 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationCyanide, Total 4500 CN E mg/L 1 0.02 0.1 0.29 H,P,EstPhosphorus, Total 365.1 mg/L 1 0.005 0.05 ND (0.05) U,PMetals - Calculated TotalAluminum 200.7, 6010B ug/L NA 228 1,600 938,000Antimony 200.8, 6020 ug/L NA 1.49 13.8 38.7Arsenic 200.8, 6020 ug/L NA 16.1 182 2,720Barium 200.7, 6010B ug/L NA 13.3 160 10,300Beryllium 200.7, 6010B ug/L NA 5.36 73.8 68.8Boron 200.7, 6010B ug/L NA 301 6,130 403,000Cadmium 200.8, 6020 ug/L NA 6.14 24.9 94Calcium 200.7, 6010B ug/L NA 3,610 16,600 7,200,000Chromium 200.8, 6020 ug/L NA 7.5 19.4 2,630Cobalt 200.7, 6010B ug/L NA 15.1 160 913Copper 200.8, 6020 ug/L NA 21.9 78.8 1,820Iron 200.7, 6010B ug/L NA 562 2,310 2,470,000Lead 200.8, 6020 ug/L NA 1.75 10.6 1,000Magnesium 200.7, 6010B ug/L NA 1,040 12,300 2,790,000Manganese 200.7, 6010B ug/L NA 26.4 613 454,000Mercury 1631E, FGS-069 ng/L NA 22,600 62,200 559,000Molybdenum 200.7, 6010B ug/L NA 39 322 500Nickel 200.8, 6020 ug/L NA 11.8 62.7 5,020Selenium 200.8, 6020 ug/L NA 10.7 48.3 4,380Silver 200.8, 6020 ug/L NA 1.75 7.83 5.94Sodium 200.7, 6010B ug/L NA 8,610 81,400 330,000Thallium 200.8, 6020 ug/L NA 0.651 7.83 54.8Tin 200.7, 6010B ug/L NA 133 1,600 ND (1,600)

# A-23NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-7. Influent to FGD Wastewater TreatmentSystem, Day 3 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationTitanium 200.7, 6010B ug/L NA 21.5 160 5,940Vanadium 200.8, 6020 ug/L NA 3.89 38.8 3,440Zinc 200.7, 6010B ug/L NA 64.9 475 5,390Metals - DissolvedAluminum 200.7 ug/L 2 9.4 200 ND (200) UAntimony 200.8 ug/L 2 0.72 2 ND (2) UArsenic 200.8 ug/L 2 1.2 4 2.7 JBarium 200.7 ug/L 2 2.5 20 370Beryllium 200.7 ug/L 2 0.71 2 ND (2) UBoron 200.7 ug/L 50 170 5,000 400,000 BCadmium 200.8 ug/L 2 1.2 4 77Calcium 200.7 ug/L 50 1,700 10,000 5,100,000Chromium 200.8 ug/L 2 3.3 8 ND (8) UChromium (VI) 218.6 ug/L 5 1.96 10 ND (10) UCobalt 200.7 ug/L 2 1.1 20 470Copper 200.8 ug/L 2 0.96 4 1.9 JIron 200.7 ug/L 2 32 200 33 JLead 200.8 ug/L 2 0.73 2 ND (2) UMagnesium 200.7 ug/L 50 540 10,000 2,800,000Manganese 200.7 ug/L 50 13 500 450,000Mercury 1631E ng/L 100 24.1 50.5 251Molybdenum 200.7 ug/L 2 1.6 40 ND (40) UNickel 200.8 ug/L 2 0.89 4 2,100Selenium 200.8 ug/L 5 1.6 10 1,200 BSilver 200.8 ug/L 2 0.59 2 ND (2) USodium 200.7 ug/L 2 180 10,000 310,000

# A-24NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-7. Influent to FGD Wastewater TreatmentSystem, Day 3 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationThallium 200.8 ug/L 2 0.47 2 26Tin 200.7 ug/L 2 4.8 200 ND (200) UTitanium 200.7 ug/L 2 1.6 20 4.7 JVanadium 200.8 ug/L 2 1.7 10 1.9 JZinc 200.7 ug/L 2 9.1 40 69Metals - Filtered AqueousAluminum 200.7 ug/L 2 9.4 200 ND (200) U,^Antimony 200.8 ug/L 2 0.72 2 1.3 JArsenic 200.8 ug/L 2 1.2 4 1.8 JBarium 200.7 ug/L 2 2.5 20 280Beryllium 200.7 ug/L 2 0.71 2 ND (2) UBoron 200.7 ug/L 50 170 5,000 400,000 BCadmium 200.8 ug/L 10 5.9 20 73Calcium 200.7 ug/L 50 1,700 10,000 5,000,000Chromium 200.8 ug/L 2 3.3 8 ND (8) UCobalt 200.7 ug/L 2 1.1 20 470Copper 200.8 ug/L 2 0.96 4 9.8Iron 200.7 ug/L 2 32 200 ND (200) ULead 200.8 ug/L 2 0.73 2 ND (2) UMagnesium 200.7 ug/L 50 540 10,000 2,800,000Manganese 200.7 ug/L 50 13 500 440,000Mercury 1631E ng/L 500 122 255 3,510Molybdenum 200.7 ug/L 2 1.6 40 ND (40) UNickel 200.8 ug/L 10 4.5 20 2,000Selenium 200.8 ug/L 10 3.1 20 1,000Silver 200.8 ug/L 2 0.59 2 ND (2) U

# A-25NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-7. Influent to FGD Wastewater TreatmentSystem, Day 3 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationSodium 200.7 ug/L 2 180 10,000 330,000Thallium 200.8 ug/L 2 0.47 2 15Tin 200.7 ug/L 2 4.8 200 ND (200) UTitanium 200.7 ug/L 2 1.6 20 ND (20) UVanadium 200.8 ug/L 2 1.7 10 ND (10) UZinc 200.7 ug/L 2 9.1 40 84Metals - Solid (dry weight)Aluminum 6010B mg/kg 5 7 45 30,000Antimony 6020 mg/kg 2 0.026 0.38 1.2Arsenic 6020 mg/kg 10 0.48 5.7 87Barium 6010B mg/kg 5 0.35 4.5 320Beryllium 6010B mg/kg 5 0.15 2.3 2.2 JBoron 6010B mg/kg 5 4.5 45 780Cadmium 6020 mg/kg 2 0.018 0.19 0.8Calcium 6010B mg/kg 5 64 230 79,000Chromium 6020 mg/kg 2 0.14 0.38 84 BCobalt 6010B mg/kg 5 0.45 4.5 15Copper 6020 mg/kg 10 0.67 2.4 58Iron 6010B mg/kg 5 17 68 79,000Lead 6020 mg/kg 2 0.034 0.28 32Magnesium 6010B mg/kg 5 17 91 4,600Manganese 6010B mg/kg 5 0.45 4.5 1,200Mercury FGS-069 ng/g 40,000 707 1,950 17,500Molybdenum 6010B mg/kg 5 1.2 9.1 16Nickel 6020 mg/kg 10 0.24 1.4 100 BSelenium 6020 mg/kg 2 0.25 0.94 110

# A-26NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.Min – Minimum value.P – Sample was not preserved immediately following collection.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-7. Influent to FGD Wastewater TreatmentSystem, Day 3 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecific MDLSample-Specific QLConcentrationSilver 6020 mg/kg 2 0.038 0.19 0.19Sodium 6010B mg/kg 5 270 2,300 570 JThallium 6020 mg/kg 2 0.0066 0.19 1.3Tin 6010B mg/kg 5 4.1 45 ND (45) UTitanium 6010B mg/kg 5 0.64 4.5 190Vanadium 6020 mg/kg 2 0.073 0.94 110Zinc 6010B mg/kg 5 1.8 14 170

# A-27NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-8. Influent to FGD Wastewater TreatmentSystem, Day 4 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSample-SpecificMDLSample-SpecificQLConcentrationClassical Pollutants - TotalAmmonia350.1mg/lNA 0.323.9111.8Nitrate Nitrite as N353.2mg/lNA0.05540.77511Nitrogen, Total Kjeldahl351.2mg/lNA2.1311.949.6Biochemical Oxygen Demand5210Bmg/L10.32.52.9Chemical Oxygen Demand410.4mg/L520100450Chloride300.0, 9056mg/lNA1181,37014,600Sulfate300.0, 9056mg/lNA15.93711,950Cyanide, Total4500 CN Emg/lNA0.0210.1050.283Total Dissolved Solids2540Cmg/L116033035,000H,EstTotal Suspended Solids2540Dmg/L12801,00055,000Phosphorus, Total365.1mg/lNA0.02860.1910.198Classicals Pollutants - Solid (dry weight)Ammonia350.1mg/Kg14.11032P,EstNitrate Nitrite as N353.2mg/Kg10.71205.1J,PNitrogen, Total Kjeldahl351.2mg/Kg560250880P,EstChloride9056mg/Kg20385804,900Sulfate9056mg/Kg1001704,90026,000Cyanide, Total4500 CN Emg/Kg10.10.50.12J,H,PPhosphorus, Total365.1mg/Kg10.814.96.5P,EstClassicals Pollutants -Filtered AqueousAmmonia350.1mg/L10.22412P,EstNitrate Nitrite as N353.2mg/L20.0380.212P,EstNitrogen, Total Kjeldahl351.2mg/L50.38526B,L,P,Est

# A-28NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-8. Influent to FGD Wastewater TreatmentSystem, Day 4 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSample-SpecificMDLSample-SpecificQLConcentrationChloride300.0mg/L5001301,50016,000Sulfate300.0mg/L50122501,300Cyanide, Total4500 CN Emg/L10.020.10.31H,P,EstPhosphorus, Total365.1mg/L10.0050.050.005J,PMetals - Calculated TotalAluminum200.7, 6010Bug/LNA2171,520922,000Antimony200.8, 6020ug/LNA1.4212.839.6Arsenic200.8, 6020ug/LNA69.58362,560Barium200.7, 6010Bug/LNA12.415210,300Beryllium200.7, 6010Bug/LNA5.170.265.4Boron200.7, 6010Bug/LNA2845,850394,000Cadmium200.8, 6020ug/LNA5.8323.4108Calcium200.7, 6010Bug/LNA3,44015,9006,710,000Chromium200.8, 6020ug/LNA7.1418.22,590Cobalt200.7, 6010Bug/LNA14.4152861Copper200.8, 6020ug/LNA20.2723,280Iron200.7, 6010Bug/LNA5342,2002,350,000Lead200.8, 6020ug/LNA1.6410.1981Magnesium200.7, 6010Bug/LNA99311,7002,750,000Manganese200.7, 6010Bug/LNA25.1585442,000Mercury1631E, FGS-069ng/LNA22,00060,600622,000Molybdenum200.7, 6010Bug/LNA37.1304506Nickel200.8, 6020ug/LNA10.959.76,560Selenium200.8, 6020ug/LNA9.9345.44,000

# A-29NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-8. Influent to FGD Wastewater TreatmentSystem, Day 4 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSample-SpecificMDLSample-SpecificQLConcentrationSilver200.8, 6020ug/LNA6.1829.2387Sodium200.7, 6010Bug/LNA8,19077,400323,000Thallium200.8, 6020ug/LNA0.6147.1656.1Tin200.7, 6010Bug/LNA1261,520ND (1,520)Titanium200.7, 6010Bug/LNA20.21526,240Vanadium200.8, 6020ug/LNA3.6436.43,270Zinc200.7, 6010Bug/LNA61.74525,460Metals - DissolvedAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.722ND (2)UArsenic200.8ug/L21.242JBarium200.7ug/L22.520360Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000390,000BCadmium200.8ug/L21.2486Calcium200.7ug/L501,70010,0005,000,000Chromium200.8ug/L23.38ND (8)UChromium (VI)218.6ug/L51.9610ND (10)UCobalt200.7ug/L21.120450Copper200.8ug/L20.9642.5JIron200.7ug/L23220054JLead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0002,800,000Manganese200.7ug/L5013500440,000

# A-30NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-8. Influent to FGD Wastewater TreatmentSystem, Day 4 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSample-SpecificMDLSample-SpecificQLConcentrationMercury1631Eng/L10024.150.51,100Molybdenum200.7ug/L21.640ND (40)UNickel200.8ug/L20.8942,100Selenium200.8ug/L51.6101,400BSilver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000320,000Thallium200.8ug/L20.47229Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.6204.4JVanadium200.8ug/L21.710ND (10)UZinc200.7ug/L29.14061Metals - Filtered AqueousAluminum200.7ug/L29.420015J,^Antimony200.8ug/L20.7221JArsenic200.8ug/L21.242.3JBarium200.7ug/L22.520260Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000410,000BCadmium200.8ug/L105.92083Calcium200.7ug/L501,70010,0005,000,000Chromium200.8ug/L23.38ND (8)UCobalt200.7ug/L21.120460Copper200.8ug/L20.9646.7Iron200.7ug/L232200ND (200)U

# A-31NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-8. Influent to FGD Wastewater TreatmentSystem, Day 4 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSample-SpecificMDLSample-SpecificQLConcentrationLead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0002,900,000Manganese200.7ug/L5013500450,000Mercury1631Eng/L5001222553,750Molybdenum200.7ug/L21.640ND (40)UNickel200.8ug/L104.5202,000Selenium200.8ug/L103.1201,200Silver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000340,000Thallium200.8ug/L20.47216Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.620ND (20)UVanadium200.8ug/L21.710ND (10)UZinc200.7ug/L29.140120Metals - Solid (dry weight)Aluminum6010Bmg/kg574531,000Antimony6020mg/kg20.0260.371.3Arsenic6020mg/kg502.32886Barium6010Bmg/kg50.344.5340Beryllium6010Bmg/kg50.152.32.2JBoron6010Bmg/kg54.445800Cadmium6020mg/kg20.0170.181.1Calcium6010Bmg/kg56423074,000Chromium6020mg/kg20.140.3787B

# A-32NA – Not applicable. Total results is based on calculated result from solid and aqueous phases.ND – Not detected (number in parentheses is the quantitation limit).^ - ICV, CCV, ICB, CCB, ISA, ISB, CRI, or MRL standard: Instrument related QC exceeds the control limits.B – Analyte was found in the blank and sample.Est – Estimated value.H – Sample was prepared/analyzed beyond the specified holding time.J – Result measured above the MDL, but less than the quantitation limit.L – LFB or LCS percent recovery not within method-specified criteria, but iswithin laboratory-specified criteria.P – Sample was not preserved immediately following collection.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-8. Influent to FGD Wastewater TreatmentSystem, Day 4 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSample-SpecificMDLSample-SpecificQLConcentrationCobalt6010Bmg/kg50.454.515Copper6020mg/kg100.652.3110Iron6010Bmg/kg5176879,000Lead6020mg/kg20.0330.2833Magnesium6010Bmg/kg517904,500Manganese6010Bmg/kg50.454.51,200MercuryFGS-069ng/g40,0007121,96020,100Molybdenum6010Bmg/kg51.2917Nickel6020mg/kg100.231.4160BSelenium6020mg/kg20.240.9298Silver6020mg/kg100.190.9213Sodium6010Bmg/kg52702,300550JThallium6020mg/kg20.00640.181.4Tin6010Bmg/kg54.145ND (45)UTitanium6010Bmg/kg50.634.5210Vanadium6020mg/kg20.0710.92110Zinc6010Bmg/kg51.814180

# A-33ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.M – MS percent recovery outside themethod-specified criteria, but withinthe laboratory-specified criteria.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-9. Effluent from FGD Wastewater TreatmentSystem, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationClassicalsAmmonia350.1mg/L20.11213Nitrate Nitrite as N353.2mg/L20.0380.29.7M,MinNitrogen, Total Kjeldahl351.2mg/L50.38522BBiochemical Oxygen Demand5210Bmg/L10.32.58.5S,MinChemical Oxygen Demand410.4mg/L520100470Chloride300.0mg/L5001301,50015,000Sulfate300.0mg/L50122501,500Cyanide, Total4500 CN Emg/L10.020.10.12BTotal Dissolved Solids2540Cmg/L14710035,000BTotal Suspended Solids2540Dmg/L11.144.8Phosphorus, Total365.1mg/L50.0250.251.2Total MetalsAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.7220.92JArsenic200.8ug/L21.243.9JBarium200.7ug/L22.520320Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000300,000BCadmium200.8ug/L21.242.2JCalcium200.7ug/L501,70010,0006,300,000Chromium200.8ug/L23.38ND (8)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L23220066J,BLead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0001,900,000BManganese200.7ug/L501350024,000B

# A-34ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.M – MS percent recovery outside themethod-specified criteria, but withinthe laboratory-specified criteria.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-9. Effluent from FGD Wastewater TreatmentSystem, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationMercury1631Eng/L204.8310.1119Molybdenum200.7ug/L21.64042Nickel200.8ug/L20.8946.8Selenium200.8ug/L103.120300Silver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000300,000Thallium200.8ug/L20.47211Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.62018JVanadium200.8ug/L21.7103.3J,BZinc200.7ug/L29.140ND (40)UDissolved MetalsAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.722ND (2)UArsenic200.8ug/L21.242JBarium200.7ug/L22.520320Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000300,000BCadmium200.8ug/L21.242.1JCalcium200.7ug/L501,70010,0006,300,000Chromium200.8ug/L23.38ND (8)UChromium (VI)218.6ug/L51.9610ND (10)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L232200ND (200)ULead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0001,900,000Manganese200.7ug/L501350024,000

# A-35ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.M – MS percent recovery outside themethod-specified criteria, but withinthe laboratory-specified criteria.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-9. Effluent from FGD Wastewater TreatmentSystem, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationMercury1631Eng/L102.415.0515.3Molybdenum200.7ug/L21.64042Nickel200.8ug/L20.8946.1Selenium200.8ug/L51.610320BSilver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000300,000Thallium200.8ug/L20.47211Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.62016JVanadium200.8ug/L21.7103.8JZinc200.7ug/L29.140ND (40)U

# A-36ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-10. Effluent from FGD Wastewater Treatment System, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationClassicalsAmmonia350.1mg/L20.11212Nitrate Nitrite as N353.2mg/L20.0380.29.4Nitrogen, Total Kjeldahl351.2mg/L50.38519BBiochemical Oxygen Demand5210Bmg/L10.32.57.1S,MinChemical Oxygen Demand410.4mg/L520100310Chloride300.0mg/L5001301,50015,000Sulfate300.0mg/L50122501,400Cyanide, Total4500 CN Emg/L10.020.10.035JTotal Dissolved Solids2540Cmg/L14710031,000Total Suspended Solids2540Dmg/L11.1410Phosphorus, Total365.1mg/L50.0250.251.1Total MetalsAluminum200.7ug/L29.420021J,BAntimony200.8ug/L20.722ND (2)UArsenic200.8ug/L21.244.1Barium200.7ug/L22.520300Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000290,000BCadmium200.8ug/L21.242.9JCalcium200.7ug/L501,70010,0006,000,000Chromium200.8ug/L23.38ND (8)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L23220063J,BLead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0002,000,000BManganese200.7ug/L501350023,000BMercury1631Eng/L102.415.05110

# A-37ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-10. Effluent from FGD Wastewater Treatment System, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationMolybdenum200.7ug/L21.64044Nickel200.8ug/L20.8947.5Selenium200.8ug/L51.610350Silver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000290,000Thallium200.8ug/L20.47210Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.62018JVanadium200.8ug/L21.7103.3J,BZinc200.7ug/L29.140ND (40)UDissolved MetalsAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.7220.88JArsenic200.8ug/L21.243.3JBarium200.7ug/L22.520300Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000300,000BCadmium200.8ug/L21.242.6JCalcium200.7ug/L501,70010,0006,000,000Chromium200.8ug/L23.38ND (8)UChromium (VI)218.6ug/L51.9610ND (10)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L232200ND (200)ULead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0002,000,000Manganese200.7ug/L501350023,000Mercury1631Eng/L51.212.5216.2Molybdenum200.7ug/L21.64043

# A-38ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-10. Effluent from FGD Wastewater Treatment System, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationNickel200.8ug/L20.8946.8Selenium200.8ug/L51.610370BSilver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000290,000Thallium200.8ug/L20.47210Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.62016JVanadium200.8ug/L21.7103.8JZinc200.7ug/L29.140ND (40)U

# A-39ND – Not detected (number in parentheses is the quantitation limit).4 – MS and/or MSD did not meet laboratorycriteria, but sample concentration is fourtimes greater thanthe matrix spike amount, so control limits are not applicable.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.F – MS and/or MSD not within laboratory control limits.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-11. Effluent from FGD Wastewater Treatment System, Day 3 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationClassicalsAmmonia350.1mg/L20.11211Nitrate Nitrite as N353.2mg/L10.0190.19.3Nitrogen, Total Kjeldahl351.2mg/L50.38520B,4Biochemical Oxygen Demand5210Bmg/L10.32.56.8S,MinChemical Oxygen Demand410.4mg/L520100380F,MinChloride300.0mg/L5001301,50014,000Sulfate300.0mg/L50122501,400Cyanide, Total4500 CN Emg/L10.020.1ND (0.1)UTotal Dissolved Solids2540Cmg/L14710029,000Total Suspended Solids2540Dmg/L11.147.2D,EstPhosphorus, Total365.1mg/L50.0250.251.2Total MetalsAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.7221.2JArsenic200.8ug/L21.243.6JBarium200.7ug/L22.520290Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000280,000B,4Cadmium200.8ug/L21.243.4JCalcium200.7ug/L501,70010,0005,600,0004Chromium200.8ug/L23.38ND (8)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L232200110J,BLead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0001,900,000B,4

# A-40ND – Not detected (number in parentheses is the quantitation limit).4 – MS and/or MSD did not meet laboratorycriteria, but sample concentration is fourtimes greater thanthe matrix spike amount, so control limits are not applicable.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.F – MS and/or MSD not within laboratory control limits.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-11. Effluent from FGD Wastewater Treatment System, Day 3 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationManganese200.7ug/L501350019,000B,4Mercury1631Eng/L102.415.0578.6Molybdenum200.7ug/L21.64042Nickel200.8ug/L20.8948.6Selenium200.8ug/L51.610300Silver200.8ug/L20.592ND (2)U,FSodium200.7ug/L218010,000280,000Thallium200.8ug/L20.4729.7Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.62015JVanadium200.8ug/L21.7101.9J,BZinc200.7ug/L29.1409.9JDissolved MetalsAluminum200.7ug/L29.420037JAntimony200.8ug/L20.7220.79JArsenic200.8ug/L21.243.9JBarium200.7ug/L22.520290Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000280,000B,4Cadmium200.8ug/L21.243.3JCalcium200.7ug/L501,70010,0005,700,0004Chromium200.8ug/L23.38ND (8)UChromium (VI)218.6ug/L51.9610ND (10)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L23220075JLead200.8ug/L20.732ND (2)U

# A-41ND – Not detected (number in parentheses is the quantitation limit).4 – MS and/or MSD did not meet laboratorycriteria, but sample concentration is fourtimes greater thanthe matrix spike amount, so control limits are not applicable.B – Analyte was found in the blank and sample.D – Laboratory duplicate RPD greater than method-specified criteria.F – MS and/or MSD not within laboratory control limits.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-11. Effluent from FGD Wastewater Treatment System, Day 3 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationMagnesium200.7ug/L5054010,0001,900,0004Manganese200.7ug/L20.512018,0004Mercury1631Eng/L51.212.5210.2Molybdenum200.7ug/L21.64042Nickel200.8ug/L20.8945.4Selenium200.8ug/L51.610320B,4Silver200.8ug/L20.592ND (2)U,FSodium200.7ug/L218010,000280,000Thallium200.8ug/L51.2511Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.62015JVanadium200.8ug/L21.7104.1JZinc200.7ug/L29.1409.6J

# A-42ND – Not detected (number in parentheses is the quantitation limit).4 – MS and/or MSD did not meet laboratorycriteria, but sample concentration is fourtimes greater thanthe matrix spike amount, so control limits are not applicable.B – Analyte was found in the blank and sample.F – MS and/or MSD not within laboratory control limits.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-12. Effluent from FGD Wastewater Treatment System, Day 4 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationClassicalsAmmonia350.1mg/L20.11212Nitrate Nitrite as N353.2mg/L10.0190.19.4Nitrogen, Total Kjeldahl351.2mg/L51.92585Biochemical Oxygen Demand5210Bmg/L10.32.53.5S,MinChemical Oxygen Demand410.4mg/L520100320Chloride300.0mg/L5001301,50013,000Sulfate300.0mg/L50122501,400Cyanide, Total4500 CN Emg/L10.020.10.1Total Dissolved Solids2540Cmg/L14710029,000Total Suspended Solids2540Dmg/L11.149.6Phosphorus, Total365.1mg/L50.0250.251.1Total MetalsAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.7220.82JArsenic200.8ug/L21.243.2JBarium200.7ug/L22.520280Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000290,000B,4Cadmium200.8ug/L21.243.5JCalcium200.7ug/L501,70010,0005,600,0004Chromium200.8ug/L23.38ND (8)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L23220091J,BLead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0001,900,000B,4Manganese200.7ug/L501350023,000B,4

# A-43ND – Not detected (number in parentheses is the quantitation limit).4 – MS and/or MSD did not meet laboratorycriteria, but sample concentration is fourtimes greater thanthe matrix spike amount, so control limits are not applicable.B – Analyte was found in the blank and sample.F – MS and/or MSD not within laboratory control limits.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-12. Effluent from FGD Wastewater Treatment System, Day 4 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationMercury1631Eng/L102.415.0531.2Molybdenum200.7ug/L21.64043Nickel200.8ug/L20.8947Selenium200.8ug/L10031200320F,4Silver200.8ug/L20.592ND (2)U,FSodium200.7ug/L218010,000270,000Thallium200.8ug/L20.47211Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.62017JVanadium200.8ug/L21.7103.6J,BZinc200.7ug/L29.140ND (40)UDissolved MetalsAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L51.851.8JArsenic200.8ug/L53.1103.5JBarium200.7ug/L22.520280Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000290,000B,4Cadmium200.8ug/L21.243.1JCalcium200.7ug/L501,70010,0005,800,0004Chromium200.8ug/L23.38ND (8)UChromium (VI)218.6ug/L51.9610ND (10)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L232200ND (200)ULead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0001,900,000Manganese200.7ug/L501350022,000

# A-44ND – Not detected (number in parentheses is the quantitation limit).4 – MS and/or MSD did not meet laboratorycriteria, but sample concentration is fourtimes greater thanthe matrix spike amount, so control limits are not applicable.B – Analyte was found in the blank and sample.F – MS and/or MSD not within laboratory control limits.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-12. Effluent from FGD Wastewater Treatment System, Day 4 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationMercury1631Eng/L204.8310.128.5Molybdenum200.7ug/L21.64044Nickel200.8ug/L20.8947Selenium200.8ug/L51.610300B,4Silver200.8ug/L20.592ND (2)U,FSodium200.7ug/L218010,000280,000Thallium200.8ug/L51.2510Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.62016JVanadium200.8ug/L21.7105.5JZinc200.7ug/L29.140ND (40)U

# A-45ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-13. Duplicate of Effluentfrom Wastewater Treatment System, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationClassicalsAmmonia350.1mg/L20.11212Nitrate Nitrite as N353.2mg/L20.0380.29.3Nitrogen, Total Kjeldahl351.2mg/L50.38521BBiochemical Oxygen Demand5210Bmg/L10.32.56.9S,MinChemical Oxygen Demand410.4mg/L520100240Chloride300.0mg/L5001301,50015,000Sulfate300.0mg/L50122501,300Cyanide, Total4500 CN Emg/L10.020.10.18Total Dissolved Solids2540Cmg/L14710030,000Total Suspended Solids2540Dmg/L11.1454Phosphorus, Total365.1mg/L50.0250.251.1Total MetalsAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.7220.76JArsenic200.8ug/L21.243.5JBarium200.7ug/L22.520300Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000310,000BCadmium200.8ug/L21.242.9JCalcium200.7ug/L501,70010,0006,200,000Chromium200.8ug/L23.38ND (8)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L23220052J,BLead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0002,000,000BManganese200.7ug/L501350023,000BMercury1631Eng/L102.415.05105

# A-46ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-13. Duplicate of Effluentfrom Wastewater Treatment System, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationMolybdenum200.7ug/L21.64043Nickel200.8ug/L20.8947.5Selenium200.8ug/L51.610350Silver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000290,000Thallium200.8ug/L20.47211Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.62017JVanadium200.8ug/L21.7103.9J,BZinc200.7ug/L29.140ND (40)UDissolved MetalsAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.722ND (2)UArsenic200.8ug/L21.243.4JBarium200.7ug/L22.520290Beryllium200.7ug/L20.712ND (2)UBoron200.7ug/L501705,000290,000BCadmium200.8ug/L21.243.1JCalcium200.7ug/L501,70010,0006,000,000Chromium200.8ug/L23.38ND (8)UChromium (VI)218.6ug/L51.9610ND (10)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L232200ND (200)ULead200.8ug/L20.732ND (2)UMagnesium200.7ug/L5054010,0001,900,000Manganese200.7ug/L501350022,000Mercury1631Eng/L51.212.5214.3Molybdenum200.7ug/L21.64043

# A-47ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.Min – Minimum value.S – Seed correction blank recovery low.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-13. Duplicate of Effluentfrom Wastewater Treatment System, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationNickel200.8ug/L20.8946.4Selenium200.8ug/L51.610350BSilver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000290,000Thallium200.8ug/L20.47211Tin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.62016JVanadium200.8ug/L21.7104.8JZinc200.7ug/L29.14012J

# a 

# Aluminum was detected in two equipment blanks for the 10-liter composite container at 2.53 ug/L and 4.71 ug/L.

ND – Not detected (number in parenthesis is the quantitation limit).



# A-48 Table A-14. Bottle Blank and Equipmen t Blank Analytical Data, Keystone

Analyte Method Process Units Concentration

HDPE 250 ml Plastic Bottles – Bottle Blank (for metals and hexavalent chromium samples)

Aluminum EPA 1638 Total Recoverable ug/L ND (4.0)

Antimony EPA 1638 Total Recoverable ug/L ND (0.020)

Arsenic EPA 1638 Total Recoverable ug/L ND (0.15)

Barium EPA 1638 Total Recoverable ug/L ND (0.20)

Beryllium EPA 1638 Total Recoverable ug/L ND (0.060)

Boron EPA 1638 Total Recoverable ug/L ND (3.0)

Cadmium EPA 1638 Total Recoverable ug/L ND (0.020)

Calcium EPA 1638 Total Recoverable ug/L ND (40)

Chromium EPA 1638 Total Recoverable ug/L ND (0.10)

Cobalt EPA 1638 Total Recoverable ug/L ND (0.10)

Copper EPA 1638 Total Recoverable ug/L ND (0.10)

Iron EPA 1638 Total Recoverable ug/L ND (10)

Lead EPA 1638 Total Recoverable ug/L ND (0.040)

Magnesium EPA 1638 Total Recoverable ug/L ND (2.5)

Manganese EPA 1638 Total Recoverable ug/L ND (0.10)

Molybdenum EPA 1638 Total Recoverable ug/L ND (0.060)

Nickel EPA 1638 Total Recoverable ug/L ND (0.10)

Selenium EPA 1638 Total Recoverable ug/L ND (0.60)

Silver EPA 1638 Total Recoverable ug/L ND (0.020)

Sodium EPA 1638 Total Recoverable ug/L ND (20)

Thallium EPA 1638 Total Recoverable ug/L ND (0.0050)

Tin EPA 1638 Total Recoverable ug/L ND (0.10)

Titanium EPA 1638 Total Recoverable ug/L ND (0.50)

Vanadium EPA 1638 Total Recoverable ug/L ND (0.10)

Zinc EPA 1638 Total Recoverable ug/L ND (0.20)

HDPE 500 ml Plastic Bottles – Bottle Blank (for metals samples)

Aluminum EPA 1638 Total Recoverable ug/L ND (4.0)

Antimony EPA 1638 Total Recoverable ug/L ND (0.020)

Arsenic EPA 1638 Total Recoverable ug/L ND (0.15)

Barium EPA 1638 Total Recoverable ug/L ND (0.20)

Beryllium EPA 1638 Total Recoverable ug/L ND (0.060)

Boron EPA 1638 Total Recoverable ug/L ND (3.0)

Cadmium EPA 1638 Total Recoverable ug/L ND (0.020)

Calcium EPA 1638 Total Recoverable ug/L ND (40)

Chromium EPA 1638 Total Recoverable ug/L ND (0.10)

Cobalt EPA 1638 Total Recoverable ug/L ND (0.10)

Copper EPA 1638 Total Recoverable ug/L ND (0.10)

Iron EPA 1638 Total Recoverable ug/L ND (10)

# a 

# Aluminum was detected in two equipment blanks for the 10-liter composite container at 2.53 ug/L and 4.71 ug/L.

ND – Not detected (number in parenthesis is the quantitation limit).



# A-49 Table A-14. Bottle Blank and Equipmen t Blank Analytical Data, Keystone

Analyte Method Process Units Concentration

Lead EPA 1638 Total Recoverable ug/L ND (0.040)

Magnesium EPA 1638 Total Recoverable ug/L ND (2.5)

Manganese EPA 1638 Total Recoverable ug/L ND (0.10)

Molybdenum EPA 1638 Total Recoverable ug/L ND (0.060)

Nickel EPA 1638 Total Recoverable ug/L ND (0.10)

Selenium EPA 1638 Total Recoverable ug/L ND (0.60)

Silver EPA 1638 Total Recoverable ug/L ND (0.020)

Sodium EPA 1638 Total Recoverable ug/L ND (20)

Thallium EPA 1638 Total Recoverable ug/L ND (0.0050)

Tin EPA 1638 Total Recoverable ug/L ND (0.10)

Titanium EPA 1638 Total Recoverable ug/L ND (0.50)

Vanadium EPA 1638 Total Recoverable ug/L ND (0.10)

Zinc EPA 1638 Total Recoverable ug/L ND (0.20)

125 ml Glass Bottles – Bottle Blank (for mercury composite samples)

Mercury EPA 1631E Total Recoverable ug/L ND (0.00050)

250 ml Glass Bottles – Bottle Bl ank (for mercury grab samples)

Mercury EPA 1631E Total Recoverable ug/L ND (0.00050)

LDPE 10 L Composite Bottles – Bottle Blank (sample composite bottle for dissolved/filtration pump-off)

Aluminum a 

# EPA 1638 Dissolved ug/L 4.71

Antimony EPA 1638 Dissolved ug/L ND (0.50)

Arsenic EPA 1638 Dissolved ug/L ND (0.50)

Barium EPA 1638 Dissolved ug/L ND (0.10)

Beryllium EPA 1638 Dissolved ug/L ND (0.10)

Cadmium EPA 1638 Dissolved ug/L ND (0.10)

Chromium EPA 1638 Dissolved ug/L ND (1.0)

Cobalt EPA 1638 Dissolved ug/L ND (0.10)

Copper EPA 1638 Dissolved ug/L ND (0.30)

Lead EPA 1638 Dissolved ug/L ND (0.050)

Manganese EPA 1638 Dissolved ug/L ND (0.50)

Molybdenum EPA 1638 Dissolved ug/L ND (0.50)

Nickel EPA 1638 Dissolved ug/L ND (0.50)

Selenium EPA 1638 Dissolved ug/L ND (2.0)

Silver EPA 1638 Dissolved ug/L ND (0.10)

Thallium EPA 1638 Dissolved ug/L ND (0.050)

Vanadium EPA 1638 Dissolved ug/L ND (1.0)

Zinc EPA 1638 Dissolved ug/L ND (0.50)

LDPE 20 L Composite Bottles – Bottle Blank (sample composite bottle for dissolved/filtration pump-off)

Aluminum EPA 1638 Dissolved ug/L ND (2.0)

Antimony EPA 1638 Dissolved ug/L ND (0.50)

# a 

# Aluminum was detected in two equipment blanks for the 10-liter composite container at 2.53 ug/L and 4.71 ug/L.

ND – Not detected (number in parenthesis is the quantitation limit).



# A-50 Table A-14. Bottle Blank and Equipmen t Blank Analytical Data, Keystone

Analyte Method Process Units Concentration

Arsenic EPA 1638 Dissolved ug/L ND (0.50)

Barium EPA 1638 Dissolved ug/L ND (0.10)

Beryllium EPA 1638 Dissolved ug/L ND (0.10)

Cadmium EPA 1638 Dissolved ug/L ND (0.10)

Chromium EPA 1638 Dissolved ug/L ND (1.0)

Cobalt EPA 1638 Dissolved ug/L ND (0.10)

Copper EPA 1638 Dissolved ug/L ND (0.30)

Lead EPA 1638 Dissolved ug/L ND (0.050)

Manganese EPA 1638 Dissolved ug/L ND (0.50)

Molybdenum EPA 1638 Dissolved ug/L ND (0.50)

Nickel EPA 1638 Dissolved ug/L ND (0.50)

Selenium EPA 1638 Dissolved ug/L ND (2.0)

Silver EPA 1638 Dissolved ug/L ND (0.10)

Thallium EPA 1638 Dissolved ug/L ND (0.050)

Vanadium EPA 1638 Dissolved ug/L ND (1.0)

Zinc EPA 1638 Dissolved ug/L ND (0.50)

Sample Tap Tubing Set – Equipment Blank (seven feet of #73 silicone tubing, Y-sp litter, and two pieces of 5

feet of #24 silicone tubing for sample collect ion for mercury and metals from sample taps)

Aluminum EPA 1638 Total Recoverable ug/L ND (4.0)

Antimony EPA 1638 Total Recoverable ug/L ND (0.020)

Arsenic EPA 1638 Total Recoverable ug/L ND (0.15)

Barium EPA 1638 Total Recoverable ug/L ND (0.20)

Beryllium EPA 1638 Total Recoverable ug/L ND (0.060)

Boron EPA 1638 Total Recoverable ug/L ND (3.0)

Cadmium EPA 1638 Total Recoverable ug/L ND (0.020)

Calcium EPA 1638 Total Recoverable ug/L ND (40)

Chromium EPA 1638 Total Recoverable ug/L ND (0.10)

Cobalt EPA 1638 Total Recoverable ug/L ND (0.10)

Copper EPA 1638 Total Recoverable ug/L ND (0.10)

Iron EPA 1638 Total Recoverable ug/L ND (10)

Lead EPA 1638 Total Recoverable ug/L ND (0.040)

Magnesium EPA 1638 Total Recoverable ug/L ND (2.5)

Manganese EPA 1638 Total Recoverable ug/L ND (0.10)

Mercury EPA 1631E Total Recoverable ug/L ND (0.00050)

Molybdenum EPA 1638 Total Recoverable ug/L ND (0.060)

Nickel EPA 1638 Total Recoverable ug/L ND (0.10)

Selenium EPA 1638 Total Recoverable ug/L ND (0.60)

Silver EPA 1638 Total Recoverable ug/L ND (0.020)

Sodium EPA 1638 Total Recoverable ug/L ND (20)

# a 

# Aluminum was detected in two equipment blanks for the 10-liter composite container at 2.53 ug/L and 4.71 ug/L.

ND – Not detected (number in parenthesis is the quantitation limit).



# A-51 Table A-14. Bottle Blank and Equipmen t Blank Analytical Data, Keystone

Analyte Method Process Units Concentration

Thallium EPA 1638 Total Recoverable ug/L ND (0.0050)

Tin EPA 1638 Total Recoverable ug/L ND (0.10)

Titanium EPA 1638 Total Recoverable ug/L ND (0.50)

Vanadium EPA 1638 Total Recoverable ug/L ND (0.10)

Zinc EPA 1638 Total Recoverable ug/L ND (0.20)

Pump-Off Tubing Set – Equipment Blan k (Three feet of Teflon® tubing, 10 feet of #73 silicone tubing, Ysplitter, and two pieces of 5 feet of #24 silicone tubing for total and di ssolved sample collection for metals)

Aluminum EPA 1638 Total Recoverable ug/L ND (4.0)

Antimony EPA 1638 Total Recoverable ug/L ND (0.020)

Arsenic EPA 1638 Total Recoverable ug/L ND (0.15)

Barium EPA 1638 Total Recoverable ug/L ND (0.20)

Beryllium EPA 1638 Total Recoverable ug/L ND (0.060)

Boron EPA 1638 Total Recoverable ug/L ND (3.0)

Cadmium EPA 1638 Total Recoverable ug/L ND (0.020)

Calcium EPA 1638 Total Recoverable ug/L ND (40)

Chromium EPA 1638 Total Recoverable ug/L ND (0.10)

Cobalt EPA 1638 Total Recoverable ug/L ND (0.10)

Copper EPA 1638 Total Recoverable ug/L ND (0.10)

Iron EPA 1638 Total Recoverable ug/L ND (10)

Lead EPA 1638 Total Recoverable ug/L ND (0.040)

Magnesium EPA 1638 Total Recoverable ug/L ND (2.5)

Manganese EPA 1638 Total Recoverable ug/L ND (0.10)

Mercury EPA 1631E Total Recoverable ug/L ND (0.00050)

Molybdenum EPA 1638 Total Recoverable ug/L ND (0.060)

Nickel EPA 1638 Total Recoverable ug/L ND (0.10)

Selenium EPA 1638 Total Recoverable ug/L ND (0.60)

Silver EPA 1638 Total Recoverable ug/L ND (0.020)

Sodium EPA 1638 Total Recoverable ug/L ND (20)

Thallium EPA 1638 Total Recoverable ug/L ND (0.0050)

Tin EPA 1638 Total Recoverable ug/L ND (0.10)

Titanium EPA 1638 Total Recoverable ug/L ND (0.50)

Vanadium EPA 1638 Total Recoverable ug/L ND (0.10)

Zinc EPA 1638 Total Recoverable ug/L ND (0.20)

T-Splitter Tubing Set – Equipment Blank (Ten feet of #7 3 silicone tubing, T-splitter, six feet of #73 silicone

tubing, and 15 feet of #73 silicone tubing for total and dissolved sample collect ion for metal composites)

Aluminum EPA 1638 Total Recoverable ug/L ND (4.0)

Antimony EPA 1638 Total Recoverable ug/L ND (0.020)

Arsenic EPA 1638 Total Recoverable ug/L ND (0.15)

Barium EPA 1638 Total Recoverable ug/L ND (0.20)

# a 

# Aluminum was detected in two equipment blanks for the 10-liter composite container at 2.53 ug/L and 4.71 ug/L.

ND – Not detected (number in parenthesis is the quantitation limit).



# A-52 Table A-14. Bottle Blank and Equipmen t Blank Analytical Data, Keystone

Analyte Method Process Units Concentration

Beryllium EPA 1638 Total Recoverable ug/L ND (0.060)

Boron EPA 1638 Total Recoverable ug/L ND (3.0)

Cadmium EPA 1638 Total Recoverable ug/L ND (0.020)

Calcium EPA 1638 Total Recoverable ug/L ND (40)

Chromium EPA 1638 Total Recoverable ug/L ND (0.10)

Cobalt EPA 1638 Total Recoverable ug/L ND (0.10)

Copper EPA 1638 Total Recoverable ug/L ND (0.10)

Iron EPA 1638 Total Recoverable ug/L ND (10)

Lead EPA 1638 Total Recoverable ug/L ND (0.040)

Magnesium EPA 1638 Total Recoverable ug/L ND (2.5)

Manganese EPA 1638 Total Recoverable ug/L ND (0.10)

Mercury EPA 1631E Total Recoverable ug/L ND (0.00050)

Molybdenum EPA 1638 Total Recoverable ug/L ND (0.060)

Nickel EPA 1638 Total Recoverable ug/L ND (0.10)

Selenium EPA 1638 Total Recoverable ug/L ND (0.60)

Silver EPA 1638 Total Recoverable ug/L ND (0.020)

Sodium EPA 1638 Total Recoverable ug/L ND (20)

Thallium EPA 1638 Total Recoverable ug/L ND (0.0050)

Tin EPA 1638 Total Recoverable ug/L ND (0.10)

Titanium EPA 1638 Total Recoverable ug/L ND (0.50)

Vanadium EPA 1638 Total Recoverable ug/L ND (0.10)

Zinc EPA 1638 Total Recoverable ug/L ND (0.20)

# A-53ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-15. Influent to FGD Wastewater Treatment SystemField Blank, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationTotal MetalsAluminum200.7ug/L29.420012J,BAntimony200.8ug/L20.722ND (2)UArsenic200.8ug/L21.24ND (4)UBarium200.7ug/L22.520ND (20)UBeryllium200.7ug/L20.712ND (2)UBoron200.7ug/L26.720061J,BCadmium200.8ug/L21.24ND (4)UCalcium200.7ug/L26940079JChromium200.8ug/L23.38ND (8)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L232200ND (200)ULead200.8ug/L20.732ND (2)UMagnesium200.7ug/L22140032J,BManganese200.7ug/L20.51204.7J,BMercury1631Eng/L10.240.5ND (0.5)UMolybdenum200.7ug/L21.640ND (40)UNickel200.8ug/L20.894ND (4)USelenium200.8ug/L20.624ND (4)USilver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000ND (10,000)UThallium200.8ug/L20.472ND (2)UTin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.620ND (20)UVanadium200.8ug/L21.710ND (10)UZinc200.7ug/L29.140ND (40)UDissolved MetalsAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.722ND (2)U

# A-54ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-15. Influent to FGD Wastewater Treatment SystemField Blank, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationArsenic200.8ug/L21.24ND (4)UBarium200.7ug/L22.520ND (20)UBeryllium200.7ug/L20.712ND (2)UBoron200.7ug/L26.720038J,BCadmium200.8ug/L21.24ND (4)UCalcium200.7ug/L269400ND (400)UChromium200.8ug/L23.38ND (8)UChromium (VI)218.6ug/L10.392ND (2)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L232200ND (200)ULead200.8ug/L20.732ND (2)UMagnesium200.7ug/L221400ND (400)UManganese200.7ug/L20.51201.2JMolybdenum200.7ug/L21.640ND (40)UNickel200.8ug/L20.894ND (4)USelenium200.8ug/L20.6241.1J,BSilver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000ND (10,000)UThallium200.8ug/L20.472ND (2)UTin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.620ND (20)UVanadium200.8ug/L21.710ND (10)UZinc200.7ug/L29.140ND (40)U

# A-55ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-16. Effluent from FGD Wastewater Treatment System Field Blank, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecificMDLSampleSpecific QLConcentrationTotal MetalsAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.722ND (2)UArsenic200.8ug/L21.24ND (4)UBarium200.7ug/L22.520ND (20)UBeryllium200.7ug/L20.712ND (2)UBoron200.7ug/L26.720067J,BCadmium200.8ug/L21.24ND (4)UCalcium200.7ug/L26940083JChromium200.8ug/L23.38ND (8)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L232200ND (200)ULead200.8ug/L20.732ND (2)UMagnesium200.7ug/L22140030J,BManganese200.7ug/L20.51203.6J,BMercury1631Eng/L10.240.5ND (0.5)UMolybdenum200.7ug/L21.640ND (40)UNickel200.8ug/L20.894ND (4)USelenium200.8ug/L20.624ND (4)USilver200.8ug/L20.592ND (2)USodium200.7ug/L218010,000ND (10,000)UThallium200.8ug/L20.472ND (2)UTin200.7ug/L24.8200ND (200)U

# A-56ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-16. Effluent from FGD Wastewater Treatment System Field Blank, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecificMDLSampleSpecific QLConcentrationTitanium200.7ug/L21.620ND (20)UVanadium200.8ug/L21.7102.9J,BZinc200.7ug/L29.14011JDissolved MetalsAluminum200.7ug/L29.4200ND (200)UAntimony200.8ug/L20.722ND (2)UArsenic200.8ug/L21.24ND (4)UBarium200.7ug/L22.520ND (20)UBeryllium200.7ug/L20.712ND (2)UBoron200.7ug/L26.720049J,BCadmium200.8ug/L21.24ND (4)UCalcium200.7ug/L269400ND (400)UChromium200.8ug/L23.38ND (8)UChromium (VI)218.6ug/L10.392ND (2)UCobalt200.7ug/L21.120ND (20)UCopper200.8ug/L20.964ND (4)UIron200.7ug/L232200ND (200)ULead200.8ug/L20.732ND (2)UMagnesium200.7ug/L221400ND (400)UManganese200.7ug/L20.51200.6JMolybdenum200.7ug/L21.640ND (40)UNickel200.8ug/L20.894ND (4)USelenium200.8ug/L20.6240.72J,BSilver200.8ug/L20.592ND (2)U

# A-57ND – Not detected (number in parentheses is the quantitation limit).B – Analyte was found in the blank and sample.J – Result measured above the MDL, but less than the quantitation limit.U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-16. Effluent from FGD Wastewater Treatment System Field Blank, Day 1 Analytical Results, KeystoneAnalyteMethodUnitDilutionFactorSampleSpecificMDLSampleSpecific QLConcentrationSodium200.7ug/L218010,000ND (10,000)UThallium200.8ug/L20.472ND (2)UTin200.7ug/L24.8200ND (200)UTitanium200.7ug/L21.620ND (20)UVanadium200.8ug/L21.7102.1JZinc200.7ug/L29.140ND (40)U

# A-58ND – Not detected (number in parentheses is the quantitation limit).U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-17. Effluent from FGD Wastewater Treatment System, Day 2 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationTotal MetalsMercury1631Eng/L10.240.5ND (0.5)U

# A-59ND – Not detected (number in parentheses is the quantitation limit).U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-18. Effluent from FGD Wastewater Treatment System, Day 3 Analytical Results, KeystoneAnalyteMethodUnitDilution FactorSample-Specific MDLSample-Specific QLConcentrationTotal MetalsMercury1631Eng/L10.240.5ND (0.5)U

# A-60ND – Not detected (number in parentheses is the quantitation limit).U – Result below the MDL. (Number shown in parentheses is the quantitation limit).Table A-19. Effluent from FGD Wastewater Treatment System, Day 4 Analytical Results, KeystoneAnalyteMethodUnitsDilution FactorSample-Specific MDLSample-Specific QLConcentrationTotal MetalsMercury1631Eng/L10.240.5ND (0.5)U

# Appendix B

DATA REVIEW NARRATIVES

# Appendix C

PICTURES FROM THE SAMPLING EPISODE

# C-1 Figure C-1. Sampler Working Inside a “Cleanbox”

# C-2 Figure C-2. Sample Tap and Tubing at the Influent to the FGD Wastewater Treatment

System

# C-3 Figure C-3. Sample Collection Set-Up at the Pump-Off Station

# C-4 Figure C-4. Sample Collection Set-Up at the E ffluent from the FGD Wastewater Treatment

System