Sampling Episode Report 

Allegheny Energy’s 

Hatfield’s Ferry Power Station 

Masontown, PA 

Sampling Episode 6564 

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. INTRODUCTION ................................................................................................................. 1-1

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

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

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

2. FACILITY OVERVIEW ........................................................................................................ 2-1

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

2.2 FGD Wastewater Treatment System ................................................................... 2-3

2.2.1 Sampling Points ....................................................................................... 2-4

3. SAMPLE COLLECTION ....................................................................................................... 3-1

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

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

3.1.2 Effluent from FGD Wastewater System .................................................. 3-4

3.2 List of Analytes and Sample Preservation ........................................................... 3-7

3.3 Plant Operational Data ......................................................................................... 3-8

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

4. LABORATORY ANALYTICAL RESULTS AND DISCUSSION ................................................... 4-1

4.1 Measured and Calculated Results for Influent to FGD Wastewater Treatment 

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

4.2 FGD Wastewater Treatment System ................................................................... 4-2

5. DATA QUALITY ................................................................................................................. 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. REFERENCES ..................................................................................................................... 6-1

Appendix A: ANALYTICAL RESULTS

Appendix B: DATA REVIEW NARRATIVES 
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LIST OF TABLES 

Page 

Table 3-1. Sample Collection Information, Hatfield’s Ferry ..................................................... 3-11

Table 3-2. Sample Collection at Hatfield’s Ferry Steam Electric Plant .................................... 3-13

Table 3-3. Field Measurements, Hatfield’s Ferry ...................................................................... 3-14

Table 3-4. Crosswalk of Sample Number to Sampling Point and Day, Hatfield’s Ferry .......... 3-15

Table 3-5. Analytical Methods, Hatfield’s Ferry ....................................................................... 3-16

Table 3-6. Summary of Sample Container and Planned Preservation, Hatfield’s Ferry ........... 3-17

Table 3-7. Sample Preservation Summary, Hatfield’s Ferry ..................................................... 3-18

Table 3-8. Generating Unit Operating Characteristics during Sample Collection, Hatfield’s 

Ferry ............................................................................................................................... 3-20

Table 3-9. FGD Scrubber System Operating Characteristics, Hatfield’s Ferry ........................ 3-21

Table 3-10. Coal Usage during Sample Collection, Hatfield’s Ferry ........................................ 3-22

Table 3-11. Scrubber Slurry Information during Sample Collection, Hatfield’s Ferry ............. 3-23

Table 3-12. FGD Wastewater Treatment System Operation Information, Hatfield’s Ferry ..... 3-24

Table 4-1. Influent to FGD Wastewater Treatment System, Hatfield’s Ferry ............................ 4-4

Table 4-2. Effluent from FGD Wastewater Treatment System, Hatfield’s Ferry ...................... 4-7

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

Treatment System, Hatfield’s Ferry ............................................................................... 4-11

Table 4-4. Metal Pollutant 4-Day Average Data Summary for FGD Wastewater Treatment 

System, Hatfield’s Ferry ................................................................................................ 4-12

Table 5-1. Field Blank Analytical Results, Hatfield’s Ferry ....................................................... 5-5

Table 5-2. Field Duplicate Results – Effluent from FGD Wastewater Treatment System, 

Hatfield’s Ferry ................................................................................................................ 5-6

Table A-1. Biphasic Sample Results for Classicals and Total Metals, Influent to FGD 

Wastewater Treatment System, Day 1 Analytical Results, Hatfield’s Ferry .................. A-1

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

Wastewater Treatment System, Day 2 Analytical Results, Hatfield’s Ferry .................. A-3
LIST OF TABLES (Continued) 

Page 

iii

Table A-3. Biphasic Sample Results for Classicals and Total Metals, Influent to FGD 

Wastewater Treatment System, Day 3 Analytical Results, Hatfield’s Ferry .................. A-5

Table A-4. Biphasic Sample Results for Classicals and Total Metals, Influent to FGD 

Wastewater Treatment System, Day 4 Analytical Results, Hatfield’s Ferry .................. A-7

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

Hatfield’s Ferry ............................................................................................................... A-9

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

Hatfield’s Ferry ............................................................................................................. A-15

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

Hatfield’s Ferry ............................................................................................................. A-21

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

Hatfield’s Ferry ............................................................................................................. A-27

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

Hatfield’s Ferry ............................................................................................................. A-34

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

Hatfield’s Ferry ............................................................................................................. A-37

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

Hatfield’s Ferry ............................................................................................................. A-40

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

Hatfield’s Ferry ............................................................................................................. A-43

Table A-13. Duplicate of Effluent from FGD Wastewater Treatment System, Day 2 

Analytical Results, Hatfield’s Ferry ............................................................................. A-46

Table A-14. Duplicate of Effluent from FGD Wastewater Treatment System, Day 3 

Analytical Results, Hatfield’s Ferry ............................................................................. A-47

Table A-15. Bottle Blank and Equipment Blank Analytical Data, Hatfield’s Ferry ................ A-50

Table A-16. Influent to FGD Wastewater Treatment System Field Blank, Day 1 Analytical 

Results, Hatfield’s Ferry ............................................................................................... A-55

Table A-17. Effluent from FGD Wastewater Treatment System Field Blank, Day 1 

Analytical Results, Hatfield’s Ferry ............................................................................. A-57

Table A-18. Effluent from FGD Wastewater Treatment System Field Blank, Day 2 

Analytical Results, Hatfield’s Ferry ............................................................................. A-59
LIST OF TABLES (Continued) 

Page 

iv

Table A-19. Effluent from FGD Wastewater Treatment System Field Blank, Day 3 

Analytical Results, Hatfield’s Ferry ............................................................................. A-60

Table A-20. Effluent from FGD Wastewater Treatment System Field Blank, Day 4 

Analytical Results, Hatfield’s Ferry ............................................................................. A-61
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LIST OF FIGURES 

Page 

Figure 2-1. Simplified Diagram of the FGD Wastewater Treatment System, Hatfield’s Ferry 

Power Station ................................................................................................................... 2-5

Figure 2-2. Detailed Diagram of the FGD Wastewater Treatment System, Hatfield’s Ferry 

Power Station ................................................................................................................... 2-6
1-1

1. INTRODUCTION

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 generated by coal-fired steam electric power plants 

and evaluate treatment technologies and best management practices used to reduce pollutant 

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

place December 5-10, 2010, at Allegheny Energy’s Hatfield’s Ferry Power Station (Hatfield’s 

Ferry), located in Masontown, Pennsylvania (Sampling Episode 6564). The focus of Episode 

6564 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 present in the wastewater discharges from steam 

electric power plants that substantially contribute to the toxic loadings for the industry. 

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

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

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

the untreated FGD wastewaters and effluent quality from technologies designed to treat the 

wastewater. 

1.2 Power Plant Site Selection

EPA selected seven coal-fired steam electric plants for FGD wastewater sampling based 

on the process configurations and characteristics of the plants. 

Hatfield’s Ferry was selected by EPA for sampling based on the following site 

characteristics: 

 The plant is a coal-fired power plant that burns a blend of bituminous and PRB in 

each of its three generating units; 

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

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

includes the following steps: 

— Equalization, 

— Lime addition (pH adjustment/metal hydroxide precipitation) 

— Organosulfide addition, 

— Ferric chloride addition, 

— Polymer addition, 

— Clarification, 

— Hydrochloric acid addition (pH adjustment), 

— Filtration (sand filters); and 

 The plant operates a selective non-catalytic reduction (SNCR) system on Unit 3.
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1.3 Sampling Episode Overview

EPA and its technical contractor, Eastern Research Group, Inc. (ERG) conducted a oneday pre-sampling site visit at Hatfield’s Ferry on February 1, 2010 as part of the detailed study. 

The information collected during the pre-sampling site visit and subsequent follow-up telephone 

calls to Hatfield’s Ferry representatives was used to create Sampling Plan, Allegheny Energy’s 

Hatfield’s Ferry Steam Electric Plant (Sampling Plan) [1], which describes the sample collection 

procedures used during the sampling episode. 

On Sunday, December 5, 2010, EPA arrived at Hatfield’s Ferry to meet with plant 

personnel, receive on-site safety training, review the sampling 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 (December 6–10, 2010). The following personnel participated in EPA’s 

sample collection activities: 

 Ron Jordan, EPA/EAD; 

 TJ Finseth, ERG; 

 Jessica Gray, ERG; 

 Danielle Lewis, ERG; 

 Jennifer Lewis, ERG; and 

 Brandon Smith, ERG. 

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

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

industry. During the sampling episode, UWAG acted as Hatfield’s Ferry’s representative and 

collected samples on behalf of the plant. 
2-1

2. FACILITY OVERVIEW

Hatfield’s Ferry operates three steam electric units and each has a coal-fired boiler. Units 

1, 2, and 3, which came on line in 1969, 1970, and 1971 respectively, each have a net capacity of 

570 megawatts (MW). In 2009, all three generating units burned a blend of 75% bituminous and 

25% PRB coal; however, during the sampling episode the blend ranged from 58% bituminous 

and 42% PRB to 84% bituminous and 16% PRB. The Hatfield’s Ferry main plant is located on 

206 acres in Masontown, Pa. The plant also has a 246 acre landfill, but only 66.5 acres were 

active at the time of the sampling episode.

Hatfield’s Ferry recently retrofitted all three units with wet FGD scrubber systems to 

control the sulfur dioxide (SO2) releases from the plant. The Unit 1 FGD system was installed in 

June 2009, and the Unit 2 and Unit 3 FGD systems were both installed in October 2009. With the 

recent addition of the FGD scrubber systems, Hatfield’s Ferry also installed an FGD wastewater 

treatment system to control the discharges of the wastewater generated during the operation of 

the FGD scrubbers. The FGD scrubber systems are discussed further in Section 2.1 and the FGD 

wastewater treatment system is discussed further in Section 2.2. 

The plant operates a selective non-catalytic reduction (SNCR) system only on Unit 3 to 

control nitrogen oxide (NOx) releases from that unit. Hatfield’s Ferry also uses low NOx burners 

on all three units to control NOx releases from the plant. 

The electrostatic precipitators (ESPs) at Hatfield’s Ferry are particulate control devices 

that remove the fly ash and other particulates from the flue gas. Hatfield’s Ferry utilizes coldside ESPs to remove the fly ash from all three units. The ESPs are designed to remove 99 percent 

of the fly ash from the flue gas. The fly ash and other particulates are collected in hoppers and 

are pneumatically transferred to fly ash silos. 

Units 1 and 2 have the following configuration: 

 Boiler; 

 Air heater; 

 ESP; and 

 FGD scrubber system. 

Unit 3 has the following configuration: 

 Boiler (SNCR system located in boiler); 

 Air heater; 

 ESP; and 

 FGD scrubber system. 

2.1 FGD Scrubber System

Hatfield’s Ferry operates three forced oxidation wet FGD scrubber systems (one per unit) 

to control the emission of SO2 from the units. The plant uses limestone slurry as the sorbent for 

SO2 absorption. Limestone and service water are fed to three on-site ball mills (one per unit), 

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

from the hydrocyclones, which ranges from 22 to 25 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 reaction tank of the FGD systems where the slurry 

is pumped to the various levels of the FGD scrubbers with the recycle pumps. All three absorbers 

have five spray levels, but the plant usually only operates four spray levels at one 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 slurry, the spray droplets 

of the limestone slurry contact the flue gas and absorb the SO2, which reacts with the limestone 

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

first of two dual flow trays, 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 through the 

limestone slurry layered on the tray, which provides additional contact between the limestone 

slurry and the flue gas. The spray droplets fall downward to the second dual flow tray and then 

continue to flow downward in the scrubber until it reaches the reaction tank. Hatfield’s Ferry 

bubbles air through the reaction tank to oxidize the calcium sulfite to calcium sulfate (i.e., 

gypsum). 

The source of up to 50% of the make-up water used in the FGD systems at Hatfield’s 

Ferry is recycled wastewater treatment lagoon water. The rest of the make-up water comes 

directly from the Monongahela River. Hatfield’s Ferry personnel stated they cannot use lagoon 

water for more than 50% of the makeup water, otherwise it is difficult for the plant to control the 

pH within the FGD system. All wastewater generated at the plant, except for FGD wastewater, is 

transferred to the wastewater treatment lagoon, which includes bottom ash sluice water (after 

initial settling and pH adjustment), floor drain wastes, and boiler wash water. 

Hatfield’s Ferry intermittently blows down the gypsum slurry from the absorber vessel to 

control the solids and chlorides concentration in each of the scrubbers. The plant initiates a 

blowdown once solids reach 21% within the absorber. The plant continues to blowdown until the 

solids reduce to 18-19% within the absorber. The plant also monitors the chloride level in the 

absorber; however, by maintaining the correct level of solids, the plant maintains an adequate 

chloride level in the absorber between 8,000 and 10,000 ppm without the need for additional 

blowdown. The maximum allowable chloride concentration for the absorber is 12,500 ppm. For 

all three units, blowdown from the absorbers occurs in six hour increments with four to five 

hours between each blowdown. Hatfield’s Ferry transfers the blowdown from the scrubber 

absorber to the gypsum dewatering operations. 

The scrubber blowdown is pumped to the primary hydrocyclones (one per unit) where the 

solid gypsum is separated from the water by centrifugal force. The 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 can either be transferred to the reclaim 

tanks and ultimately goes back to the absorber, or the overflow is pumped to the secondary 

hydrocyclones. The underflow from the secondary hydrocyclones is transferred to the reclaim 

tank and recycled back to the absorber. The overflow from the secondary hydrocyclones is 

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

never recycled back to the absorber. 
2-3

Hatfield’s Ferry does not wash the gypsum sent to the vacuum filter belts as the gypsum 

is poured onto the belts. The plant stated that although the system is designed to wash the 

gypsum to remove chlorides, the plant does not conduct this wash because Hatfield’s Ferry does 

not have any contracts in place to sell the gypsum. Additionally, washing the gypsum would 

cause their average monthly discharge flow rate to rise above their current NPDES permit limit 

(160 gpm). The gypsum contains a moisture content of 10% after the vacuum belt filters. 

Hatfield’s Ferry transfers the gypsum to an on-site landfill for disposal. The landfill is lined and 

has a leachate collection system. The filtrate from the vacuum belt filters is transferred to the 

reclaim tanks and ultimately recycled back to the absorber. 

2.2 FGD Wastewater Treatment System

The FGD wastewater treatment system is designed to receive intermittent transfers of 

secondary hydrocyclone overflow. The design flow rate for the treatment system is 500 gpm. 

Hatfield’s Ferry operates the FGD wastewater treatment 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. The plant’s FGD wastewater treatment system 

contains the following treatment operations: 

 Equalization; 

 Lime addition (pH adjustment/metal hydroxide precipitation); 

 Organosulfide addition; 

 Ferric chloride addition; 

 Polymer addition; 

 Clarification; 

 Hydrochloric acid addition (pH adjustment); and 

 Filtration (sand filters). 

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

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

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

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

treatment operations. 

The secondary hydrocyclone overflow from the scrubbers is transferred to the purge tank 

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

sampling episode, the FGD influent wastewater was found to contain between 4 and 7 percent 

solids, had a pH between 6 and 7 S.U., and a temperature between 40 and 50 °C. The 

equalization tank also receives water from the wastewater treatment sump and off-specification 

effluent from the FGD wastewater treatment system. The wastewater treatment sump includes 

wastewater such as filter backwash and filtrate from the filter press that dewater the sludge from 

the clarifiers. Sumps from the dewatering area are also transferred to the equalization tank; 

however, the sumps in the limestone preparation are not transferred to the equalization tank. 

From the equalization tank, the wastewater flows into the bottom of reaction tank 1. 

Hatfield’s Ferry adds lime to reaction tank 1 to encourage metal hydroxide precipitation and to 

increase the pH from 5.5 S.U. (pH in the absorber) to between 8.5 and 9.0 S.U. Service water is 

used to create the hydrated lime. Hatfield’s Ferry also adds an organosulfide, Nalmet® 1689, to 
2-4

reaction tank 1 to encourage the formation of sulfide complexes. The overflow from reaction 

tank 1 flows to reaction tank 2 where ferric chloride is added. 

From reaction tank 2, the wastewater is split evenly between two solids contact clarifiers. 

Right before this split, a polymer is added to the wastewater. As of the time of the site visit, one 

clarifier was out of service and being repaired, and all wastewater was being transferred to the 

second clarifier. [QUESTION FOR HATFIELD’S FERRY: Was one of the clarifiers out of 

service during the sampling episode? If so, which clarifier?] Both solids contact clarifiers 

contain a sludge bed that facilitates removal of the solids in the wastewater. A portion of the 

sludge from the clarifiers can be recycled to reaction tank 1, while the majority is transferred to 

the sludge tank and then pumped to a filter press for dewatering. At the time of the sampling 

episode, the plant was not recycling any of the clarifier sludge to reaction tank 1. 

The dewatered sludge, which contains approximately 75% solids, is transferred to the onsite landfill, along with the gypsum. The filter press filtrate is transferred to the wastewater 

treatment area sump and recycled back to the equalization tank. 

The clarifier overflow is transferred to the sand filters (gravity filtration); however, prior 

to reaching the sand filters, hydrochloric acid is injected into the waste stream to decrease the pH 

to 7.0 S.U. The backwash from the sand filters is transferred to the wastewater treatment area 

sump, which is recycled back to the equalization tank. 

After treatment with the sand filters, the wastewater is collected in the treated wastewater 

storage tank. From this tank, the wastewater is either recirculated back to the equalization tank or 

mixed with the effluent from the treatment lagoon and discharged to the Monongahela River. 

Discharge from the wastewater treatment system is continuous, unless the plant is 

recirculating the effluent because it is not meeting specifications. The plant’s permit limit for its 

average monthly discharge flow rate is 160 gpm, therefore the plant attempts to keep the average 

daily discharge at 160 gpm. The wastewater treatment system is designed for typical flow rates 

between 100 and 500 gpm. The hydraulic residence time of the FGD wastewater treatment 

system is 24 hours.

2.2.1 Sampling Points 

Figure 2-2 shows the sampling points for the Hatfield’s Ferry sampling episode; they are 

summarized below: 

 A sample of the secondary hydrocyclone overflow from an individual unit1, which 

is upstream of the equalization tank (i.e., the sample was collected prior to any 

chemical addition or mixing with recycle streams); and 

 A sample of the effluent from the treated wastewater storage tank, before mixing 

with the treated wastewater lagoon effluent. 

 

1

 During each day of the sampling episode, ERG collected the secondary hydrocyclone overflow from one unit. 

Over the course of the four-day sampling episode, ERG collected the secondary hydrocyclone overflow once from 

Unit 1, once from Unit 2, and twice from Unit 3. 
2-5 

Figure 2-1. Simplified Diagram of the FGD Wastewater Treatment System, Hatfield’s Ferry Power 
2-6 

Figure 2-2. Detailed Diagram of the FGD Wastewater Treatment System, Hatfield’s Ferry Power S
3-1

3. SAMPLE COLLECTION

During the Hatfield’s Ferry sampling episode, the sampling team followed the collection 

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

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

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

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

activities. 

3.1 Sampling Points, Sample Collection Methods, and Field Measurements

This section describes the sampling points, 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, sampling point descriptions, type of sample 

collection, and sample collection dates and times. Table 3-2 lists 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 the field measurement data collected from each 

sampling point. Table 3-4 presents a crosswalk between 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 Wastewater Treatment System; 

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

 SP-4 Influent of FGD Wastewater Treatment System (SP-1) Field Blank; and 

 SP-5 Effluent from FGD Wastewater Treatment System (SP-2) Field Blank. 

For all the sampling points, EPA collected split samples with Hatfield’s Ferry’s 

representative by inserting a “Y” splitter into the sample tubing configuration 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., samples 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 Hatfield’s Ferry’s representative collected duplicate 

samples, with one filling the bottle immediately 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 that secures itself open with clips. The “cleanbox” is double-bagged 

with a clear inner bag, enclosed in a translucent outer bag. The “cleanbox” is handled using 

“clean hands / dirty hands” techniques, whereby the inner bag is handled 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 opening of the box, but is still able to see the sample bottles and 
3-2

tubing. The “cleanbox” minimizes potential atmospheric contamination during sample 

collection. 

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

placed the sample bottles (while still in its sealed 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 closed the sample bottle lid and sealed the inner 

bag as quickly as possible within 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 the FGD wastewater treatment system (SP-1) was collected from a sample 

tap located on the wastewater piping on the overflow line from the secondary hydrocyclones. 

Because Hatfield’s Ferry does not have a sample tap located downstream from where the 

secondary hydrocyclone overflow for each unit is combined, one unit’s secondary hydrocyclone 

overflow was sampled each day2

. Figure 2-2 identifies the sampling location for SP-1. This 

sample was collected as a grab sample. Due to the relatively high concentration of suspended 

solids, the FGD purge was not amenable to collecting representative split samples using 

composite sampling techniques. This was not an issue for samples collected at SP-1 because the 

characteristics of the influent to the wastewater treatment system are expected to be fairly 

consistent during the purge. The sampling point was located inside the gypsum dewatering 

building, at the location of the secondary hydrocyclones. 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 samples 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, a 3/8 inch hose barb was attached to the sample tap tubing to reduce the diameter of the 

sample tap. The sample tap was only a couple feet off the ground and because the wastewater at 

the tap was not pressurized, the samples either had to collected on the ground, or on the 

level/floor below the secondary hydrocyclones. Therefore, the samplers attached a 15-foot 

length of silicone tubing to the sample tap, and carefully lowered the tubing through the opening 

in the secondary hydrocylones down to the level below. The end of the silicone tubing was fitted 

with a “Y” splitter, with two additional lengths of silicone tubing attached to the “Y” splitter. 

The samplers attached the silicone tubing to the hose barb, opened the valve, and allowed sample 

to flow through the tubing and hose barb for two minutes before beginning to fill sample 

containers. The samplers did not close the valve until all samples were collected (except the 

dissolved metals samples). 

 

2

 Secondary hydrocyclone overflow from Unit 3 was sampled on day 1 and day 4. Secondary hydrocyclone 

overflow from Unit 2 was sampled on day 2 and secondary hydrocyclone overflow from Unit 1 was sampled on day 

3. 
3-3

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-liter3

 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 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 sampling 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 containers for biochemical oxygen demand (BOD5), Group I, 

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

Table 3-6 for a list of Group I and Group II analytes. BOD5, Group I, Group II, and total cyanide 

samples were immediately placed on ice after sample collection. 

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

potassium-iodide starch test strips were used to measure for sulfides and oxidants, respectively. 

No sulfides or oxidants were detected during the 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 were 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 the silicone tubing, 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 Hatfield’s Ferry’s representatives. The sampling team placed 

the end of the Teflon® tubing into the 10-liter container filled with wastewater from the influent 

to the FGD wastewater treatment system. By this time, the solids in the wastewater had been 

settling for approximately 120 minutes. Approximately 0.5 liters of sample were pumped 

through the tubing/filter to purge the line before collecting samples4

. 

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

Section 3.1: 

 Dissolved metals by 200.8; 

 

3

 On day 3 and day 4, two (2) 10-liter containers were collected for the dissolved metals pump off because the 

sample collected on Day 2 did not result in enough supernatant to collect all sample fractions needed. ERG filled 

one 10-liter container while Hatfield’s Ferry’s representatives filled the other 10-liter container. 4

 On day 3 and 4, one 10-liter container was used to collect the 200.8 dissolved metals sample volumes. The sample 

tubing was then moved to the second 10-liter container, purged with 0.5 liters of sample, and the remaining sample 

volumes were collected. 
3-4

 Dissolved metals by 200.7; and 

 Dissolved hexavalent chromium5. 

Hexavalent chromium samples were immediately placed on ice after sample collection. 

3.1.2 Effluent from FGD Wastewater System 

The effluent from the FGD wastewater system (SP-2) was collected from a sample tap 

downstream of the treated wastewater storage tank on the suction side of the pump that directs 

the wastewater to the river for discharge. EPA decided to sample from the suction side of the 

pump because Hatfield’s Ferry does not always transfer treated effluent to the river; therefore, if 

the sample was located on the discharge side of the pump, then EPA would not be able to collect 

sample aliquots when the discharge was not occurring. [QUESTION FOR HATFIELD’S 

FERRY: Please confirm the sample tap location.] Hatfield’s Ferry installed a three-way splitter 

on the sample tap, which had three separate taps to collect samples from the sampling point. The 

sample tap was located inside the FGD wastewater 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 compositors 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 compositor to collect sample volume for all classical 

analytes (i.e., BOD5, Group I, and Group II, excluding cyanide). In addition to collecting 

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

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

grab sample for cyanide during each compositing period. 

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

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

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

treatment system. 

Samplers set up the compositors by attaching two 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 configuration was set up such that one end 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 sample tap, opened the valve, and allowed sample to 

flow through both sets of tubing before calibrating 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 

 

5

 On day 2, the samplers were unable to collect the hexavalent chromium sample because there was not enough 

supernatant in the 10-L container after allowing the solids to settle. 
3-5

collected 830 mL every hour, so that the projected 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 and flowed directly to 

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

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

each individual sample aliquot6

. 

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

ice for the entire 24-hour compositing period. A plastic bag was placed on top of the trash cans 

to minimize contamination. 

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

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

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

procedures at the influent to the bioreactor system. 

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. Because the sample tap was located on the suction side of the effluent transfer 

pumps, the head from the wastewater storage tank level was the only pressure moving the water 

through the piping. Because of this reduced pressure, when the samplers opened the third valve 

on the sample tap to collect the mercury samples, no wastewater was drained. Therefore, to 

collect the mercury sample, the sampling team pinched the drain line of the T-splitter tubing set 

for the both the metals and classical compositors to obtain flow through the tap used for mercury 

sampling. After purging the tap for two minutes, the samples were collected directly from the 

tap into the sample bottles. After the samples were collected the drain line in the T-splitter tubing 

sets for the compositors were released and allowed to flow normally. Because total mercury and 

dissolved mercury samples were collected directly from the tap, ERG was not able to collect split 

samples with Hatfield’s Ferry’s representatives; therefore, duplicate samples were collected. 

ERG 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 the 

field measurement data for the effluent of the FGD wastewater treatment system. 

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

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

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

split samples with Hatfield’s Ferry’s representatives; therefore, duplicate samples were collected. 

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

and the samples placed on ice. Lead acetate test strips and potassium-iodide starch test strips 

were used to measure for sulfides and oxidants, respectively. No sulfides or oxidants were 

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

 

6

 On day 4 of sample collection, the samplers pinched the drain line of the T-splitter tubing set for the classical 

compositor so there was only a drain line from the metals compositor. This approach provided a more consistent 

flow for each of the compositors and still allowed both compositors to purge the line back to the flowing stream 

prior to each individual sample aliquot, the classical just had to purge all the way back to the sample tap. 
3-6

After the twenty-fourth aliquots were collected in the two composite containers7, ERG 

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

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

composite containers were moved to the pump-off area where 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 volume on each day of sample collection. 

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

transferred the wastewater collected in the 20-liter containers into the individual sample 

containers at the pump-off area. For this sampling 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 within 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 containers. 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 the silicone tubing, 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 Hatfield’s Ferry’s 

representative. On Day 1 only, prior to collecting any samples of the effluent from the FGD 

wastewater treatment system, the samplers collected a field blank sample (SP-5) for dissolved 

and total metals. See Section 5.2.3 for a description of the dissolved metals field blank sample 

collection at the influent to the bioreactor 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 influent to 

the bioreactor system. After the tubing and filter were purged with 1-2 liters of sample, samplers 

collected the following samples 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 immediately 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 collected the following samples using a “cleanbox,” as 

described in Section 3.1: 

 Total metals by 200.8; and 

 

7

 The 20-liter metals and classical containers from day 1 were almost completely full at the end of the 24-hour 

compositing period. There was only a small amount of head space in the vented cap. On day 2 the 20-liter classical 

compositor was disconnected after only nine full aliquots because the 20-liter container was already full. On day 3 

the metals composite container collected 22 liters of sample (and did not overflow) and the classical composite 

container collected 21.5 liter of sample. On day 4 the metals and classical composite containers collected 

approximately 20 liters each. 
3-7

 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 previously filled 20-liter container8

. Once the tubing was purged 

with 1-2 liters of sample, samplers filled containers for biochemical oxygen demand (BOD5), 

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. BOD5, Group I, and Group II samples were 

immediately placed on ice after sample collection. 

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

treatment system (SP-2) on Day 3 of the sampling episode. ERG collected QC samples for all 

other analytes at the effluent from the FGD wastewater treatment system (SP-2) on Day 4 of the 

sampling episode. In addition, for mercury, ERG collected a duplicate sample of the effluent 

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

other analytes, ERG collected a duplicate sample for the effluent from the FGD wastewater 

treatment system (SP-3) on Day 3. 

3.2 List of Analytes and Sample Preservation

Samples collected at Hatfield’s Ferry were analyzed for the following pollutants: 

 Classicals: 

— Biochemical oxygen demand, 5-day (BOD5), 

— 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, 

— 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, including contributions from coal, scrubber sorbents, treatment 

 

8

 On day 1 of the sampling episode, there was sufficient volume in the metals container; therefore, samplers did not 

transfer the tubing to the other container. On day 2, because the classicals composite container was disconnected 

(due to overfilling), the samplers collected all the samples from the metals composite container. 
3-8

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 sampling team preserved samples in accordance with 

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

collection, the samplers placed the BOD5, Group I, Group II, dissolved hexavalent chromium, 

and total cyanide samples on ice to cool the samples to <6°C. The sampling team did not place 

the total and dissolved metals or the total and dissolved mercury samples on ice, which comports 

with the requirements of Methods 200.7, 200.8, and 1631E. All dissolved metals samples, except 

for mercury, were filtered in the field. The hexavalent chromium samples were preserved in the 

field, but all other metals samples were acid-preserved prior to extraction at the laboratory. The 

hexavalent chromium samples were preserved with ammonium sulfate 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 confirmed with fourcolor pH strips. Each total cyanide sample was tested for sulfides and oxidants immediately after 

sample collection. Because sulfides and oxidants were not detected at any of the sampling points 

during the sampling episode, the samplers did not need to dilute 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. 

3.3 Plant Operational Data

During the EPA sampling episode, Hatfield’s Ferry plant personnel provided the 

sampling team with operational data for each of the generating units and the FGD scrubber 

system, as well as operational and flow data for the FGD wastewater treatment system. Table 3-8 

presents the unit operating characteristics, Table 3-9 presents the 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 slurry generation during the sampling 

episode, and Table 3-12 presents the FGD wastewater treatment system operating characteristics. 

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 ammonium sulfate buffer solution was not 

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

sulfate buffer solution, followed by as much ammonium hydroxide as necessary 

to reach the desired pH. 

 Collection of total and dissolved mercury samples at SP-2: Because the sample 

tap was located on the suction side of the effluent transfer pumps, the head from 

the wastewater storage tank level was the only pressure moving the water through 

the piping. Because of this reduced pressure, when the samplers opened the third 

valve on the sample tap to collect the mercury samples, no wastewater was 
3-9

drained. Therefore, to collect the mercury sample, the sampling team pinched the 

drain line of the T-splitter tubing set for the both the metals and classical 

compositors to obtain flow through the tap used for mercury sampling. 

 Metals and Classicals Composite Containers at SP-2 (Day 1): On day 1 of 

sample collection at the effluent from the FGD wastewater treatment system, the 

samplers after the first 24-hour compositing period at the effluent from the FGD 

wastewater treatment system (SP-2), samplers disconnected the 20-liter containers 

from the compositors and noted that both containers were completely full, filled 

to above the 20-liter level. The number of complete aliquots collected is not 

known. 

 Collection of classicals samples at SP-2 (Day 1): On day 1 of sample collection 

at the effluent from the FGD wastewater treatment system (SP-2), the sampling 

team collected the classicals samples from the same 20-liter container that was 

used to collect the metals samples. There was sufficient volume remaining in the 

metals composite container, after collecting the required dissolved and total 

metals samples, to collect the samples for BOD, Group I analytes, and Group II. 

 Collection of hexavalent chromium samples at SP-1 (Day 2): On day 2 of 

sample collection at the influent to the FGD wastewater treatment system (SP-1), 

the hexavalent chromium sample was not collected. After allowing the solids to 

settle for approximately two hours, the samplers collected the dissolved metals by 

200.8 and dissolved metals by 200.7. The samplers then began collecting the 

hexavalent chromium sample but stopped when the bottle was approximately half 

full because the filter became clogged with solids. Sampling activities were 

paused and the sample was allowed to continue settling. During this time the 

hexavalent chromium sample was capped and the inner bag was sealed and left 

inside the clean box. The outer bag around the clean box was closed. After 

approximately one hour and twenty minutes, the 10-liter container was checked 

for further settling. Due to the minimal supernatant present, EPA decided not to 

collect the hexavalent chromium sample. 

 Collection of classicals composite sample at SP-2 (Day 2) – On day 2 of sample 

collection at the effluent from the FGD wastewater treatment system (SP-2), the 

classical compositor was disconnected after only 9 full aliquots. The container 

was almost filled with 20-liters of sample and samplers chose to disconnect the 

compositor prior to the sample completely filling the 20-liter container. 

 Collection of duplicate samples (SP-3) – As described above, on day 2 of 

sample collection at the effluent from the FGD wastewater system (SP-2), 

classical compositor overfilled during the compositing period. ERG had planned 

to collect the duplicate samples of the effluent from the FGD wastewater 

treatment system (SP-3) on day 2; however, because only one 20-L container 

would have volume for the sample collection, the metals and classical duplicate 

samples were collected on day 3 instead. At the time the classical composite 

container issue was identified, two of the four mercury duplicate samples had 
3-10

already been collected; therefore, ERG continued collecting the mercury duplicate 

samples on day 2. 

 Collection of dissolved metals samples at SP-1 (Days 3 and 4) – On day 3 and 

day 4 of the sample collection at the influent of the FGD wastewater system (SP2), two 10-liter containers were filled and allowed to settle before collection of 

dissolved metals samples. ERG filled one of the 10-liter containers while 

Hatfield’s Ferry’s representatives simultaneously filled an additional 10-liter 

container. One container was used to collect all sample volumes needed for 

dissolved metals 200.8. The pump off tubing was then transferred to the second 

10-liter container, purged with approximately 250 mL of sample, and the 

remaining sample volumes were collected. 

 Collection of duplicate samples for total and dissolved metals, classicals, and 

hexavalent chromium at SP-2 (Day 3) – On day 3 of the sample collection at the 

effluent of the FGD wastewater system (SP-2), both classical and metals 

compositors again collected more than the desired 20 liters of sample, with the 

metals compositor collecting approximately 22 liters and the classicals 

compositor collecting approximately 21.5 liters. Samplers were present for the 

final composite sample collection cycle and were able to verify that both 

containers did not reach full capacity and were able to hold the full volume of the 

last sample. The sample volume collected on day 3 of sampling was used to 

collect duplicate samples (SP-3) for total metals, dissolved metals, classicals, and 

hexavalent chromium. 

 Collection of QC samples at SP-2 – The QC samples for total and dissolved 

mercury at the effluent from the FGD wastewater treatment system (SP-2) were 

collected on day 2, as planned; however, because the duplicate samples for total 

and dissolved metals and classicals were collected on day 3 instead of day 2 (as 

described above), ERG collected the QC samples for these analytes on day 4 

instead of day 3. 
3-11

Table 3-1. Sample Collection Information, Hatfield’s Ferry

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 12/6/10 0907a and 1049b

Influent to FGD Wastewater Treatment 

System – Day 2 

Grab 12/7/10 0957a and 1214b

Influent to FGD Wastewater Treatment 

System – Day 3 

Grab 12/8/10 1048a and 1325b

Influent to FGD Wastewater Treatment 

System – Day 4 

Grab 12/9/10 0947a and 1229b

SP-2 Effluent from FGD Wastewater System – 

Day 1 

Composite 12/6/10 

12/7/10

0722c

0813d

Grab 12/6/10 

 12/7/10 

0736e, 1332f , and 1943 g

0126 h 

Effluent from FGD Wastewater System – 

Day 2 

Composite 12/7/10 

 12/8/10 

0622c

0828d 

Grab 12/7/10 

 12/8/10 

0736e, 1332f , and 1940 g

0140 h 

Effluent from FGD Wastewater System – 

Day 3 

Composite 12/8/10 

 12/9/10 

0759c

0818d 

Grab 12/8/10 

 12/9/10 

0809e, 1408f , and 2007 g

0210 h 

Effluent from FGD Wastewater System – 

Day 4 

Composite 12/9/10 

 12/10/10 

0747c

0706d 

Grab 12/9/10 

 12/10/10 

0800e, 1359f , and 2007 g

0205 h 

SP-3 Duplicate of Effluent from FGD 

Wastewater System – Day 3 

Composite 12/8/10 

 12/9/10 

0759c

0819d 

Grab 12/7/10 

 12/8/10 

0737e, 1333f , and 1944 g

0143 h 

SP-4 Influent to FGD Wastewater Treatment 

System Field Blank 

Grab 12/6/10 0850 i and 1040j

SP-5 Effluent from FGD Wastewater System 

Field Blank – Day 1 

Composite 12/6/10 

12/7/10

0627k

0802l

Grab 12/6/10 0730m

Effluent from FGD Wastewater System 

Field Blank – Day 2 

Grab 12/7/10 0731m

Effluent from FGD Wastewater System 

Field Blank – Day 3 

Grab 12/8/10 0804m

Effluent from FGD Wastewater System 

Field Blank – Day 4 

Grab 12/9/10 0755m

a

 Start time for the collection of the total metals samples (total metals by 200.7 and total metals by 200.8) total and 

dissolved mercury, and classicals (BOD5, Group I, Group II, and total cyanide). 
3-12

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 (except for hexavalent chromium on day 2)). Does not include dissolved 

mercury. 

c Started metals compositor. The classical compositor was started approximately two minutes after the metals 

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 (BOD5, 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 total and dissolved mercury Grab 2 samples. 

g

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

h

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

i

 Start time for the collection of total mercury, 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, dissolved metals by 200.8, and hexavalent chromium 

field blank samples. 

k

 Filled 20-liter field blank composite container with blank water. 

l Start time for the collection of total metals (total metals by 200.7 and total metals by 200.8) and dissolved metals 

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

m Start time for the collection of total mercury field blank samples. 
3-13 

Table 3-2. Sample Collection at Hatfield’s Ferry Steam Electric Plant

Sampling 

Point Number Sampling 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

SP-1 Influent to FGD Wastewater Treatment 

System 

4 4 4 4 4 4 3c 4 

SP-2 Effluent from FGD Wastewater Treatment 

System 

4+1QC 4+1QC 4+1QC 4+1QC 4+1QC 4+1QC 4+1QC 4+1QC 4+

SP-3 Duplicate of Effluent from FGD Wastewater 

Treatment System 

1 1 1 1 1 1 1 1 

SP-4 Influent to FGD Wastewater Treatment 

System Field Blank 

1 1 1 1 1 1 

SP-5 Effluent from FGD Wastewater Treatment 

System Field Blank 

1 1 1 1 4 1 

Total Number of Samples 11+1QC 11+1QC 11+1QC 11+1QC 14+1QC 9+1QC 10+1QC 9+1QC 9+

a 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 phosphc The hexavalent chromium sample for the influent to the FGD wastewater treatment system was not collected on day 2. See Section 3.4 for more deta
3-14 

Table 3-3. Field Measurements, Hatfield’s Ferry

Sampling 

Point 

Number Sampling Point Description Date Time 

Temperature 

(°C) 

pH 

(S.U.) 

Waste 

Stream Flow 

Rate 

Meter (gpm) 

a Strips 

SP-1 Influent to FGD Wastewater Treatment 

System – Day 1

12/6/2010 0907 47 5.92 6.5 171b Sampl

had a appeaNo dein tota

Influent to FGD Wastewater Treatment System – Day 2 

12/7/2010 0957 49 6.06 7 171b

Influent to FGD Wastewater Treatment System – Day 3 

12/8/2010 1048 49 6.11 7 171b

Influent to FGD Wastewater Treatment System – Day 4 

12/9/2010 0947 48 6.14 7 171b

SP-2 Effluent from Wastewater Treatment 

System – Day 1

12/6/10 0743 28 7.5 7 120c Sampl

colorlobservdetecttotal c

12/6/10 1335 29 7.48 7 120c12/6/10 2000 27 7.47 7 120 12/7/10 0132 28 7.48 7 120 

Effluent from Wastewater Treatment System – Day 2 

12/7/10 0742 28 7.48 7 120 

12/7/10 1340 28 7.46 7 120 12/7/10 1954 29 7.45 7.5 120 12/8/10 0150 29 7.46 7 120 

Effluent from Wastewater Treatment System – Day 3 

12/8/10 0810 28 7.42 7 120 

12/8/10 1410 29 7.61 7 111 12/8/10 2015 29 7.42 7 120 12/9/10 0214 29 7.49 7 120 

Effluent from Wastewater Treatment System – Day 4 

12/9/10 0802 28 7.40 7 120 

12/9/10 1401 29 7.42 7.5 120 12/9/10 2014 29 7.49 7.5 120 

12/10/10 0209 28 7.46 7.5 120 

a The pH meter was calibrated prior to the sampling episode and once every day during the sampling episode using prepackaged buffer 

and 10.0. 

b Plant does not monitor or record the flow at SP-1. Plant estimates flow based to be an average of 171 gpm during the sampling periodc Discharge flow monitoring was not functioning until 12/6/2010 at 1400 hrs. Flow rate at SP-2 prior to this time is estimated (from 07
3-15 

Table 3-4. Crosswalk of Sample Number to Sampling Point and Day, Hatfield’s Ferry

Sample Number Sample Point Sample Description 

71941 SP-1, Day 1 Influent to FGD Wastewater Treatment System - Day 1 

71942 SP-1, Day 2 Influent to FGD Wastewater Treatment System - Day 2 

71943 SP-1, Day 3 Influent to FGD Wastewater Treatment System - Day 3 

71944 SP-1, Day 4 Influent to FGD Wastewater Treatment System - Day 4 

71945 SP-2, Day 1 Effluent to FGD Wastewater Treatment System - Day 1 

71946 SP-2, Day 2 Effluent to FGD Wastewater Treatment System - Day 2 

71947 SP-2, Day 3 Effluent to FGD Wastewater Treatment System - Day 3 

71948 SP-2, Day 4 Effluent to FGD Wastewater Treatment System - Day 4 

71949 SP-3, Day 2 Duplicate of Effluent to FGD Wastewater Treatment System - Day 2 

71950 SP-4, Day 1 Influent to FGD Wastewater Treatment System Field Blank - Day 1 

71951 SP-5, Day 1 Effluent to FGD Wastewater Treatment System Field Blank - Day 1 

71952 SP-5, Day 2 Effluent to FGD Wastewater Treatment System Field Blank - Day 2 

71953 SP-5, Day 3 Effluent to FGD Wastewater Treatment System Field Blank - Day 3 

71954 SP-5, Day 4 Effluent to FGD Wastewater Treatment System Field Blank - Day 4 

71955 SP-3, Day 3 Duplicate of Effluent to FGD Wastewater Treatment System - Day 3 
3-16 

Table 3-5. Analytical Methods, Hatfield’s Ferry

Parameter Method Number 

Classicals

Biochemical oxygen demand (BOD5) SM 5210 B 

Chemical oxygen demand (COD) EPA 410.4 

Total suspended solids (TSS) SM 2540 D 

Total dissolved solids (TDS) SM 2540 C 

Sulfate EPA 300.0 

Chloride EPA 300.0 

Ammonia as nitrogen EPA 350.1 

Nitrate/nitrate as nitrogen EPA 353.2 

Total Kjeldahl nitrogen (TKN) EPA 351.2 

Total phosphorus EPA 365.1 

Total cyanide SM 4500 CN E 

Total and Dissolved Metals

Mercury EPA 1631E 

Hexavalent chromium (dissolved only) EPA 218.6 

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

nickel, selenium, silver, thallium, and vanadium 

EPA 200.8 with collision cell 

Aluminum, barium, beryllium, boron, calcium, cobalt, iron, magnesium, 

molybdenum, sodium, tin, titanium, and zinc. 

EPA 200.7 
3-17 

Table 3-6. Summary of Sample Container and Planned Preservation, Hatfield’s Ferry 

Parameter 

Sample 

Container and 

Volume 

QC Sample 

Container and 

Volume On-Site Preservation 

Classicals 

BOD5 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 

H2SO4 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, 

NaAsO2 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 

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

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, nitrate/nitrite as nitrogen, TKN, and total phosphorus.
3-18 

Table 3-7. Sample Preservation Summary, Hatfield’s Ferry

Sampling Point 

Number Analysis Date 

Chemical 

Added 

Initial pH 

(S.U.) 

Final pH 

(S.U.) 

Amount 

Added 

(drops) 

71941 Group II Volume I 12/6/2010 H2SO4 7 2 175 

71941 Group II Volume II 12/6/2010 H2SO4 7 2 170 

71941 Hexavalent Chromium 12/6/2010 (NH4)2SO4

Buffer 

6.5 8.5 100 

NH4OH 8.5 9.5 10 

71950 Hexavalent Chromium Field 

Blank 

12/6/2010 (NH4)2SO4

Buffer 

6.5 9 100 

NH4OH 9 9.5 6 

71941 Total Cyanide 12/6/2010 NaOH 6.5 10 210 

71945 Total Cyanide 12/6/2010 NaOH 8.0 10 25 

71942 Group II Volume I 12/7/2010 H2SO4 6 2 200 

71942 Group II Volume II 12/7/2010 H2SO4 6 2 200 

71945 Group II Volume I 12/7/2010 H2SO4 7.5 2 40 

71945 Group II Volume II 12/7/2010 H2SO4 7.5 2 40 

71945 Hexavalent Chromium 12/7/2010 (NH4)2SO4

Buffer 

7.1 8.1 100 

NH4OH 8.7 9.5 3 

71951 Hexavalent Chromium Field 

Blank 

12/7/2010 (NH4)2SO4

Buffer 

6.5 9.0 100 

NH4OH 9.0 9.5 5 

71942 Total Cyanide 12/7/2010 NaOH 6.5 10 350 

71946 Total Cyanide 12/7/2010 NaOH 7 10 20 

71949 Total Cyanide 12/7/2010 NaOH 7 10 25 

71943 Group II Volume I 12/8/2010 H2SO4 6 2 200 

71943 Group II Volume II 12/8/2010 H2SO4 6 2 200 

71946 Group II Volume I 12/8/2010 H2SO4 7.5 2 40 

71946 Group II Volume II 12/8/2010 H2SO4 7.5 2 40 

71943 Hexavalent Chromium 12/8/2010 (NH4)2SO4

Buffer 

6.5 8.1 100 

NH4OH 8.1 9.5 24 

71946 Hexavalent Chromium 12/8/2010 (NH4)2SO4

Buffer 

7.4 8.7 200 

NH4OH 8.7 9.5 6 

71943 Total Cyanide 12/8/2010 NaOH 6.5 10 275 

71947 Total Cyanide 12/8/2010 NaOH 7.5 10 20 

71955 Total Cyanide 12/8/2010 NaOH 7.5 10 20 

71944 Group II Volume I 12/9/2010 H2SO4 6 2 240 

71944 Group II Volume II 12/9/2010 H2SO4 6 2 260 

71947 Group II Volume I 12/9/2010 H2SO4 7 2 40 

71947 Group II Volume II 12/9/2010 H2SO4 7 2 40 

71955 Group II Volume I 12/9/2010 H2SO4 7 2 40 
3-19 

Table 3-7. Sample Preservation Summary, Hatfield’s Ferry

Sampling Point 

Number Analysis Date 

Chemical 

Added 

Initial pH 

(S.U.) 

Final pH 

(S.U.) 

Amount 

Added 

(drops) 

71955 Group II Volume II 12/9/2010 H2SO4 7 2 40 

71944 Hexavalent Chromium 12/9/2010 (NH4)2SO4

Buffer 

7 8.3 100 

NH4OH 8.3 9.5 12 

71947 Hexavalent Chromium 12/9/2010 (NH4)2SO4

Buffer 

7 8.5 100 

NH4OH 8.5 9.5 10 

71955 Hexavalent Chromium 12/9/2010 (NH4)2SO4

Buffer 

7 8.5 100 

NH4OH 8.5 9.5 10 

71944 Total Cyanide 12/9/2010 NaOH 6.5 10 206 

71948 Total Cyanide 12/9/2010 NaOH 7 10 20 

71948 Total Cyanide - QC 12/9/2010 NaOH 7 10 20 

71948 Group II Volume I 12/10/2010 H2SO4 7 2 30 

71948 Group II Volume II 12/10/2010 H2SO4 7 2 30 

71948 Group II Volume I - QC 12/10/2010 H2SO4 7 2 30 

71948 Group II Volume II - QC 12/10/2010 H2SO4 7 2 30 

71948 Hexavalent Chromium 12/10/2010 (NH4)2SO4

Buffer 

7 8.5 100 

NH4OH 8.5 9.5 9 
3-20 

Table 3-8. Generating Unit Operating Characteristics during Sample Collection, Hatfield’s 

Ferry

Unit ID Boiler Type 

Capacity 

(MW) 

Electricity Production 

(MW) 

(or Percent Capacity %)

SNCR 

(No, On, Off) 

Particulate Control System 

(HS/CS ESP, or BH) 

1 

Once Thru 

Supercritical 

Opposing Wall 

Fired 

570 91% No ESP 

2 

Once Thru 

Supercritical 

Opposing Wall 

Fired 

570 87% No ESP 

3 

Once Thru 

Supercritical 

Opposing Wall 

Fired 

570 89% Off ESP 
3-21 

Table 3-9. FGD Scrubber System Operating Characteristics, Hatfield’s Ferry 

Unit ID 

Wet FGD 

System (Yes/No) 

Type of 

Scrubber 

Forced 

Oxidation 

(Yes/No) Sorbent 

Additives (DBA, 

formic acid, etc.) 

FGD Make-up 

Water Source 

SO2 Re

Percen

1 Yes B&W Yes Limestone None River and waste water 992 Yes B&W Yes Limestone None River and waste water 993 Yes B&W Yes Limestone None River and waste water 99

B&W – Babcock and Wilcox Company
3-22

Table 3-10. Coal Usage during Sample Collection, Hatfield’s Ferry 

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 

Coala

(ppm) 

1 

1 E Bit at 84% 

PRB at 16% 4,435 

Eastern 

Bituminous 

WY 

2.55 NA 

2 E Bit at 84% 

PRB at 16% 4,685 

Eastern 

Bituminous 

WY 

2.55 NA 

3 E Bit at 84% 

PRB at 16% 5,409 

Eastern 

Bituminous 

WY 

2.55 NA 

2 

1 E Bit at 73% 

PRB at 27% 4,879 

Eastern 

Bituminous 

WY 

2.91 NA 

2 E Bit at 73% 

PRB at 27% 5,042 

Eastern 

Bituminous 

WY 

2.91 NA 

3 E Bit at 73% 

PRB at 27% 4,239 

Eastern 

Bituminous 

WY 

2.91 NA 

3 

1 E Bit at 70% 

PRB at 30% 3,868 

Eastern 

Bituminous 

WY 

2.92 NA 

2 E Bit at 70% 

PRB at 30% 4,015 

Eastern 

Bituminous 

WY 

2.92 NA 

3 E Bit at 70% 

PRB at 30% 5,899 

Eastern 

Bituminous 

WY 

2.92 NA 

4 

1 E Bit at 58% 

PRB at 42% 4,556 

Eastern 

Bituminous 

WY 

3.24 NA 

2 E Bit at 58% 

PRB at 42% 3,829 

Eastern 

Bituminous 

WY 

3.24 NA 

3 E Bit at 58% 

PRB at 42% 5,179 

Eastern 

Bituminous 

WY 

3.24 NA 

a

 Data on chlorine content of coal is not available. 

 
3-23

Table 3-11. Scrubber Slurry Information during Sample Collection, Hatfield’s Ferry

Day of 

Sampling 

FGD 

System ID 

Associated 

Unit IDs 

Scrubber Slurry 

Blowdown Flow Rate 

Scrubber 

Slurry 

Percent 

Solids 

Time of 

Dewatering 

During 

Sampling Day 

Percent 

Filtrate 

Recycled 

Back to 

Scrubber 

Flow Rate 

(gpm) Duration 

1 

1 1 1400 11 hrs 

30min 21% 2:00am – 11:00am 9:30pm – 12:00am 97% 

2 2 1400 12 hrs 

20 min 

21% 12:00am – 2:20am 

12:00pm – 4:00pm 

6:00pm – 12:00am 

97%

3 3 1400 12 hrs 

15 min 

21% 12:00am – 3:30am 

12:30pm – 3:30pm 

5:15pm – 11:00pm 

97%

2 

1 1 1400 16 hrs 21% 12:00am – 7:30am 

3:30pm – 12:00am 

93%

2 2 1400 12 hrs 21% 12:30am – 4:30am 

11:45am – 7:45pm 

93%

3 3 1400 12 hrs 

40 min 

21% 3:20am – 2:00pm 

10:00pm –12:00am 

93%

3 

1 1 1400 7 hrs 

20 min 

21% 12:00am – 2:00am 

1:00pm – 6:20pm 

91%

2 2 1400 9 hrs 

20 min 

21% 3:00am – 9:00am 

8:40pm – 12:00am 

91%

3 3 1400 13 hrs 

10 min 

21% 12:00am – 5:00am 

1:50pm – 12:00am 

91%

4 

1 1 1400 14 hrs 

45 min 

21% 4:00am – 1:00pm 

6:15pm – 12:00am 

93%

2 2 1400 13 hrs 

30 min 

21% 12:00am – 6:30am 

11:00am – 6:00pm 

93%

3 3 1400 12 hrs 

30 min 

21% 12:00am – 4:30am 

1:30pm – 9:30pm 

93%
3-24 

Table 3-12. FGD Wastewater Treatment System Operation Information, Hatfield’s Fer

Day of 

Sampling 

Scrubber Purge Chemical Usage 

Flow Rate 

(gpm) 

Duration 

(hr) Lime (tons) 

Ferric Chloride 

(liters) 

Organosulfide 

Nalco 1689 

(liters) 

Polymer

Nalco 140

(liters) 

1 47 24 1.2 63 17 29 2 120 24 3.1 98 17 43 3 118 24 3.1 92 17 43 4 120 24 3.1 86 17 43 
4-1 

4. LABORATORY ANALYTICAL RESULTS AND DISCUSSION

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 the biphasic analysis of 

SP-1. Section 4.2 presents the laboratory analytical data for the influent to and effluent from the 

FGD wastewater treatment system. 

Appendix A provides all analytical results for all samples collected at Hatfield’s Ferry, 

including all qualified results and all results that were measured above the method detection 

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

4.1 Measured and Calculated Results for Influent to FGD Wastewater Treatment 

System Samples

The samples of the influent to the FGD wastewater treatment system were expected to 

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

unreacted limestone, and fly ash. Because of this, 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 solids loads. Therefore, ERG directed its contract 

laboratories to separate the aqueous and solid phases of the sample 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, TestAmerica Laboratories - Denver (TestAmerica), 

and the mercury laboratory, Frontier Global Sciences (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 consisted of performing a pressure filtration to separate 

the solids from the sample and analyzing the solid and aqueous phases separately. TestAmerica 

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

calculate 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 volume. EPA 

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

sample. 
4-2 

Sample

Filtrate Filtrate Solid Solid

V

(C V ) (C Wt ) Total SampleConcentration     (4-1) 

where: 

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

VFiltrate = volume of the filtrate; 

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

WtSolid = weight of the solids in the sample; and 

VSample = volume of the original sample. 

TestAmerica used the same approach for the seven 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 any language stating how wastewater samples with high solid 

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

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

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

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

concentration is on a wet-weight basis. To calculate 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 volume. EPA used Equation 4-1 to calculate the 

individual total mercury concentrations for the sample. 

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

ammonia as nitrogen, nitrate/nitrite, 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 wastewater 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 effluent from the FGD wastewater treatment system 

(SP-2). 

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

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

sample above the method detection limit, the result 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 wastewater treatment system), a duplicate sample 

for mercury was collected on Day 2 of the sampling episode and duplicate samples for all other 

analytes were collected on Day 3. The Day 2 result for mercury presented in Table 4-2 represent 

the average of the original and the duplicate sample results and the Day 3 results for all analytes 

other than mercury in Table 4-2 represent the average of the original and duplicate sample 

results. Table 5-2 presents the analytical results for the original and duplicate mercury results 

from Day 2 and the calculated relative percent difference (RPD). Table 5-3 presents the 

analytical results for the original and duplicate results for all analytes other than mercury for Day 

3 and the calculated 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 quantitation limit, then all results were averaged 

together; 

 If at least one result was above the quantitation 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 reported 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 detection limit, then the sample-specific 

quantitation limits for all results were averaged 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 for all classical analytes for the influent to 

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

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

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

(SP-1) and the effluent from the 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-14 present all the analytical results from the influent to 

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

system (SP-2), and the duplicate of the effluent from the FGD wastewater treatment system (SP3) sample analyses, including J-values. 
4-4 

< - Average result includes at least one value measured below the quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. B – Analyte was found in the blank and sample. Est – Estimated value. F – MS and/or MSD not within laboratory control limits. G – pH upon receipt greater than 2 S.U. 

Table 4-1. Influent to FGD Wastewater Treatment System, Hatfield’s Ferry 

Analyte Units Method 

Influent to FGD Wastewater Treatment System (

Day 1 Day 2 Day 3 D

Classicals Ammonia mg/L 350.1 NQ (4.20) NQ (4.22) NQ (4.31) NQ (4.Nitrate Nitrite as N mg/L 353.2 129 208 157 129 Nitrogen, Total Kjeldahl mg/L 351.2 45.6 57.4 38.3 47.0 Biochemical Oxygen Demand mg/L 5210B 3.00 B NQ (5.00) 3.80 2.50 Chemical Oxygen Demand mg/L 410.4 250 F,G,Est 520 350 G,Est 280 Chloride mg/L 300.0, 9056 5,610 8,510 8,000 6,250 Sulfate mg/L 300.0, 9056 10,400 11,800 10,100 10,30Cyanide, Total mg/L 4500 CN E NQ (0.119) 0.216 0.195 0.136 Total Dissolved Solids mg/L 2540C 25,000 41,000 31,000 26,00Total Suspended Solids mg/L 2540D 54,000 67,000 66,000 47,00Phosphorus, Total mg/L 365.1 NQ (0.345) 17.8 13.3 NQ (0.3Total Metals Aluminum ug/L 200.7, 6010B 1,760,000 2,550,000 2,080,000 2,000,0Antimony ug/L 200.8, 6020 24.1 NQ (29.3) NQ (26.7) NQ (21Arsenic ug/L 200.8, 6020 2,300 4,610 2,150 2,830 Barium ug/L 200.7, 6010B 13,000 21,300 12,500 13,40Beryllium ug/L 200.7, 6010B 59.9 136 54.9 73.7 Boron ug/L 200.7, 6010B 233,000 364,000 309,000 262,00Cadmium ug/L 200.8, 6020 425 595 589 451 Calcium ug/L 200.7, 6010B 8,230,000 6,730,000 9,700,000 6,740,0Chromium ug/L 200.8, 6020 6,460 8,490 6,920 6,660 Cobalt ug/L 200.7, 6010B 556 869 637 597 Copper ug/L 200.8, 6020 1,900 3,130 2,090 2,200 Iron ug/L 200.7, 6010B 1,470,000 2,050,000 1,800,000 1,770,0Lead ug/L 200.8, 6020 1,170 2,120 1,310 1,390 Magnesium ug/L 200.7, 6010B 5,070,000 6,830,000 6,150,000 5,120,0
4-5 

< - Average result includes at least one value measured below the quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. B – Analyte was found in the blank and sample. Est – Estimated value. F – MS and/or MSD not within laboratory control limits. G – pH upon receipt greater than 2 S.U. 

Table 4-1. Influent to FGD Wastewater Treatment System, Hatfield’s Ferry 

Analyte Units Method 

Influent to FGD Wastewater Treatment System (

Day 1 Day 2 Day 3 D

Manganese ug/L 200.7, 6010B 71,100 98,300 96,200 80,40Mercury ng/L 1631E, FGS-069 521,000 654,000 789,000 624,00Molybdenum ug/L 200.7, 6010B 675 1,350 680 760 Nickel ug/L 200.8, 6020 2,970 4,360 3,710 3,280 Selenium ug/L 200.8, 6020 2,680 3,920 3,550 2,740 Silver ug/L 200.8, 6020 NQ (12.4) NQ (15.2) NQ (14.3) NQ (11Sodium ug/L 200.7, 6010B 377,000 607,000 465,000 373,00Thallium ug/L 200.8, 6020 96.8 195 99.9 116 Tin ug/L 200.7, 6010B NQ (757) NQ (785) NQ (769) NQ (65Titanium ug/L 200.7, 6010B 14,100 29,700 11,100 16,10Vanadium ug/L 200.8, 6020 5,900 10,700 6,530 7,230 Zinc ug/L 200.7, 6010B 15,000 19,100 16,200 15,40Dissolved Metals Aluminum ug/L 200.7 NQ (200) 250 ND (200) NQ (20Antimony ug/L 200.8 5.40 13.0 5.60 6.30 Arsenic ug/L 200.8 5.20 11.0 5.10 7.70 Barium ug/L 200.7 140 160 160 160 Beryllium ug/L 200.7 3.00 3.60 NQ (2.00) 3.10 Boron ug/L 200.7 250,000 B 410,000 B 340,000 B 290,00Cadmium ug/L 200.8 300 450 420 290 Calcium ug/L 200.7 730,000 800,000 860,000 780,00Chromium ug/L 200.8 ND (8.00) ND (8.00) ND (8.00) ND (8.Chromium (VI) ug/L 218.6 ND (10.0) NA ND (10.0) ND (10Cobalt ug/L 200.7 310 370 380 330 Copper ug/L 200.8 14.0 14.0 14.0 11.0 Iron ug/L 200.7 ND (200) ND (200) ND (200) ND (20Lead ug/L 200.8 ND (2.00) ND (2.00) ND (2.00) ND (2.
4-6 

< - Average result includes at least one value measured below the quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. B – Analyte was found in the blank and sample. Est – Estimated value. F – MS and/or MSD not within laboratory control limits. G – pH upon receipt greater than 2 S.U. 

Table 4-1. Influent to FGD Wastewater Treatment System, Hatfield’s Ferry 

Analyte Units Method 

Influent to FGD Wastewater Treatment System (

Day 1 Day 2 Day 3 D

Magnesium ug/L 200.7 4,400,000 6,300,000 5,300,000 4,800,0Manganese ug/L 200.7 69,000 94,000 96,000 82,00Mercury ng/L 1631E 131 382 236 187 Molybdenum ug/L 200.7 320 960 360 420 Nickel ug/L 200.8 1,000 1,200 1,200 1,100 Selenium ug/L 200.8 340 1,100 350 400 Silver ug/L 200.8 ND (2.00) ND (2.00) ND (2.00) ND (2.Sodium ug/L 200.7 370,000 590,000 470,000 360,00Thallium ug/L 200.8 20.0 45.0 21.0 24.0 Tin ug/L 200.7 ND (200) ND (200) ND (200) ND (20Titanium ug/L 200.7 ND (20.0) ND (20.0) ND (20.0) ND (20Vanadium ug/L 200.8 35.0 97.0 37.0 45.0 Zinc ug/L 200.7 2,600 2,200 2,400 2,100 
4-7 

Note: The Day 2 results represent the average of the original sample and the field duplicate (SP-3). See Section 5.2.4 for the analytical results for the < - Average result includes at least one value measured below the quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the qu

ND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. * - LCS or LCSD is outside the laboratory control limits. 4 – MS and/or MSD did not meet laboratory criteria, but sample concentration is four times greater than the matrix spike amount, so control limits are 

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. Min – Minimum value. 

Table 4-2. Effluent from FGD Wastewater Treatment System, Hatfield’s Ferry 

Analyte Units Method

Effluent from FGD Wastewater Treatment System 

Day 1 Day 2 Day 3 Day 

Classicals Ammonia mg/L 350.1 NQ (1.00) B NQ (1.00) B 1.10 1.00 Nitrate Nitrite as N mg/L 353.2 130 140 140 130 Nitrogen, Kjeldahl mg/L 351.2 19.0 16.0 17.5 17.0 Biochemical Oxygen Demand mg/L 5210B ND (2.00) NQ (2.50) NQ (2.50) 2.60 Chemical Oxygen Demand mg/L 410.4 240 240 230 230 Chloride mg/L 300.0 6,500 6,700 6,700 6,500 Sulfate mg/L 300.0 5,800 5,000 4,700 5,500 Cyanide, Total mg/L 4500 CN E 0.110 0.180 0.195 0.170 Total Dissolved Solids mg/L 2540C 16,000 16,000 12,500 15,000 Total Suspended Solids mg/L 2540D NQ (4.00) NQ (4.00) NQ (4.00) 4.00 Phosphorus, Total mg/L 365.1 0.0670 B 0.230 B 0.0620 NQ (0.0500) Total Metals Aluminum ug/L 200.7 ND (200) NQ (200) B NQ (200) NQ (200) Antimony ug/L 200.8 7.40 8.20 8.65 8.80 Arsenic ug/L 200.8 5.40 4.60 6.40 7.60 Barium ug/L 200.7 100 120 130 110 Beryllium ug/L 200.7 ND (2.00) ND (2.00) ND (2.00) ND (2.00) Boron ug/L 200.7 180,000 B,4 190,000 B 185,000 190,000 Cadmium ug/L 200.8 5.60 7.00 8.65 8.70 Calcium ug/L 200.7 1,200,000 B,4 1,400,000 B 1,400,000 1,200,000 Chromium ug/L 200.8 11.0 11.0 10.5 10.0 
4-8 

Note: The Day 2 results represent the average of the original sample and the field duplicate (SP-3). See Section 5.2.4 for the analytical results for the < - Average result includes at least one value measured below the quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the qu

ND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. * - LCS or LCSD is outside the laboratory control limits. 4 – MS and/or MSD did not meet laboratory criteria, but sample concentration is four times greater than the matrix spike amount, so control limits are 

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. Min – Minimum value. 

Table 4-2. Effluent from FGD Wastewater Treatment System, Hatfield’s Ferry 

Analyte Units Method

Effluent from FGD Wastewater Treatment System 

Day 1 Day 2 Day 3 Day 

Cobalt ug/L 200.7 ND (20.0) ND (20.0) ND (20.0) NQ (20.0) Copper ug/L 200.8 NQ (4.00) NQ (4.00) NQ (4.00) NQ (4.00) Iron ug/L 200.7 200 B,F NQ (200) B NQ (200) NQ (200) Lead ug/L 200.8 ND (2.00) ND (2.00) ND (2.00) ND (2.00) Magnesium ug/L 200.7 2,800,000 B,4 2,900,000 B 2,800,000 3,000,000 Manganese ug/L 200.7 2,400 B,4 1,900 B 2,050 6,400 Mercury ng/L 1631E 35.3 38.4 31.8 37.0 Molybdenum ug/L 200.7 430 420 465 460 Nickel ug/L 200.8 6.50 4.50 4.95 13.0 Selenium ug/L 200.8 570 4 540 595 620 Silver ug/L 200.8 ND (2.00) F ND (2.00) ND (2.00) ND (2.00) Sodium ug/L 200.7 410,000 4 420,000 415,000 380,000 Thallium ug/L 200.8 7.00 7.40 8.55 7.80 Tin ug/L 200.7 ND (200) ND (200) ND (200) ND (200) Titanium ug/L 200.7 ND (20.0) ND (20.0) ND (20.0) ND (20.0) Vanadium ug/L 200.8 27.0 B 23.0 B 30.0 47.0 Zinc ug/L 200.7 ND (40.0) ND (40.0) ND (40.0) NQ (40.0) Dissolved Metals Aluminum ug/L 200.7 ND (200) ND (200) ND (200) ND (200) Antimony ug/L 200.8 6.90 7.50 8.10 7.90 Arsenic ug/L 200.8 5.10 4.30 6.25 8.60 Barium ug/L 200.7 100 F 120 130 100 
4-9 

Note: The Day 2 results represent the average of the original sample and the field duplicate (SP-3). See Section 5.2.4 for the analytical results for the < - Average result includes at least one value measured below the quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the qu

ND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. * - LCS or LCSD is outside the laboratory control limits. 4 – MS and/or MSD did not meet laboratory criteria, but sample concentration is four times greater than the matrix spike amount, so control limits are 

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. Min – Minimum value. 

Table 4-2. Effluent from FGD Wastewater Treatment System, Hatfield’s Ferry 

Analyte Units Method

Effluent from FGD Wastewater Treatment System 

Day 1 Day 2 Day 3 Day 

Beryllium ug/L 200.7 ND (2.00) ND (2.00) ND (2.00) ND (2.00) Boron ug/L 200.7 190,000 B,4 190,000 B 175,000 190,000 Cadmium ug/L 200.8 4.60 7.20 9.10 7.80 Calcium ug/L 200.7 1,200,000 4 1,400,000 1,450,000 1,200,000 Chromium ug/L 200.8 8.50 9.10 9.75 8.60 Chromium (VI) ug/L 218.6 4.08 3.93 3.86 2.96 Cobalt ug/L 200.7 ND (20.0) ND (20.0) ND (20.0) NQ (20.0) Copper ug/L 200.8 NQ (4.00) NQ (4.00) NQ (4.00) NQ (4.00) Iron ug/L 200.7 ND (200) ND (200) ND (200) ND (200) Lead ug/L 200.8 ND (2.00) ND (2.00) ND (2.00) ND (2.00) Magnesium ug/L 200.7 3,000,000 4 2,900,000 2,800,000 2,800,000 Manganese ug/L 200.7 2,400 4 1,900 2,000 6,200 Mercury ng/L 1631E NQ (0.500) 7.98 8.90 16.5 Molybdenum ug/L 200.7 430 430 465 450 Nickel ug/L 200.8 5.30 4.00 5.15 13.0 Selenium ug/L 200.8 610 4 560 620 630 Silver ug/L 200.8 ND (2.00) F ND (2.00) ND (2.00) ND (2.00) Sodium ug/L 200.7 410,000 4 400,000 415,000 370,000 Thallium ug/L 200.8 7.50 7.10 8.70 7.60 Tin ug/L 200.7 ND (200) ND (200) ND (200) ND (200) Titanium ug/L 200.7 ND (20.0) ND (20.0) ND (20.0) ND (20.0) Vanadium ug/L 200.8 26.0 22.0 29.5 44.0 
4-10 

Note: The Day 2 results represent the average of the original sample and the field duplicate (SP-3). See Section 5.2.4 for the analytical results for the < - Average result includes at least one value measured below the quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the qu

ND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. * - LCS or LCSD is outside the laboratory control limits. 4 – MS and/or MSD did not meet laboratory criteria, but sample concentration is four times greater than the matrix spike amount, so control limits are 

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. Min – Minimum value. 

Table 4-2. Effluent from FGD Wastewater Treatment System, Hatfield’s Ferry 

Analyte Units Method

Effluent from FGD Wastewater Treatment System 

Day 1 Day 2 Day 3 Day 

Zinc ug/L 200.7 ND (40.0) NQ (40.0) ND (40.0) ND (40.0) 
4-11 

< - Average result includes at least one value measured below the quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quNQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. 

Table 4-3. Classical Pollutant 4-Day Average Data Summary for FGD Wastewater Treatment System, Ha

Analyte Units Method

Influent to FGD 

Wastewater Treatment

System (SP-1)

4-Day Average

Effluent f

Wastewate

System 

4-Day A

ClassicalsAmmonia mg/L 350.1 NQ (4.22) < 0Nitrate Nitrite as N mg/L 353.2 156 1Nitrogen, Total Kjeldahl mg/L 351.2 47.1 17Biochemical Oxygen Demand mg/L 5210B < 2.95 < 1Chemical Oxygen Demand mg/L 410.4 350 2Chloride mg/L 300.0, 9056 7,090 6,6Sulfate mg/L 300.0, 9056 10,700 5,2Cyanide, Total mg/L 4500 CN E < 0.152 0.Total Dissolved Solids mg/L 2540C 30,800 14,Total Suspended Solids mg/L 2540D 58,500 < 2Phosphorus, Total mg/L 365.1 < 7.86 < 0
4-12 

< - Average result includes at least one value measured below the quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quNA – Not analyzed. ND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. 

Table 4-4. Metal Pollutant 4-Day Average Data Summary for FGD Wastewater Treatment System, Hatf

Analyte Units Method

Influent to FGD

Wastewater Treatment 

System (SP-1)

4-Day Average

Effluen

Wastewa

Syst

4-Da

Total Dissolved Total 

MetalsAluminum ug/L 200.7 2,100,000 < 138 NQ (200) Antimony ug/L 200.8 < 15.7 7.58 8.26 Arsenic ug/L 200.8 2,970 7.25 6.00 Barium ug/L 200.7 15,100 155 115 Beryllium ug/L 200.7 81.1 < 2.68 ND (2.00) Boron ug/L 200.7 292,000 323,000 186,000 Cadmium ug/L 200.8 515 365 7.49 Calcium ug/L 200.7 7,850,000 793,000 1,300,000 Chromium ug/L 200.8 7,130 ND (8.00) 10.6 Chromium (VI) ug/L 218.6 NA ND (10.0) NA Cobalt ug/L 200.7 665 348 NQ (20.0) Copper ug/L 200.8 2,330 13.3 NQ (4.00) Iron ug/L 200.7 1,770,000 ND (200) < 125 Lead ug/L 200.8 1,500 ND (2.00) ND (2.00) Magnesium ug/L 200.7 5,790,000 5,200,000 2,880,000 Manganese ug/L 200.7 86,500 85,300 3,190 Mercury ng/L 1631E 647,000 234 33.6 Molybdenum ug/L 200.7 866 515 444 Nickel ug/L 200.8 3,580 1,130 7.24 Selenium ug/L 200.8 3,220 548 581 Silver ug/L 200.8 NQ (13.4) ND (2.00) ND (2.00) Sodium ug/L 200.7 456,000 448,000 406,000 Thallium ug/L 200.8 127 27.5 7.69 Tin ug/L 200.7 NQ (741) ND (200) ND (200) 
4-13 

< - Average result includes at least one value measured below the quantitation limit. (Calculation uses 1⁄2 the quantitation limit for values below the quNA – Not analyzed. ND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. 

Table 4-4. Metal Pollutant 4-Day Average Data Summary for FGD Wastewater Treatment System, Hatf

Analyte Units Method

Influent to FGD

Wastewater Treatment 

System (SP-1)

4-Day Average

Effluen

Wastewa

Syst

4-Da

Total Dissolved Total 

Titanium ug/L 200.7 17,800 ND (20.0) ND (20.0) Vanadium ug/L 200.8 7,590 53.5 31.8 Zinc ug/L 200.7 16,400 2,330 NQ (40.0) 
5-1

5. DATA QUALITY

Quality assurance/quality control (QA/QC) procedures applicable to the Hatfield’s Ferry 

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

Rulemaking (QAPP) [2]. This section describes the QC procedures 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 laboratories for the analysis of samples collected 

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

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

prepared written data review narratives describing any qualifications of the analytical data from 

this episode. The data review narratives 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 Sampling Plan discusses field QC specifications. 

5.2.1 Bottle Blanks 

ERG collects bottle blanks to evaluate possible 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 precleaned bottles, Frontier Global Sciences. 

Frontier Global Sciences collected the bottle blanks for the metals sample bottles by 

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

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

Frontier Global Sciences collected the bottle blanks for the mercury sample bottles by 

filling the precleaned bottle with reagent water, preserving the sample with bromine 

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

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

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

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

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

ASTM Type 1 water. Albion Environmental then 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 blanks. Appendix Table A-15 presents all of the 

analytical results from the bottle blank analyses for the bottles used to collect the metals and 

mercury samples. 
5-2

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 (as described in Section 

5.2.3) include the sampling equipment and therefore would identify whether the sampling 

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

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

precleaned equipment supplied for the episode. 

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

fabricated tubing sets by pumping reagent water 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 equipment blanks, except for aluminum in the 

sample tap tubing set and calcium in the pump off tubing set. Because the sample tap tubing sets 

were only used for the collection of the influent samples, the aluminum contamination did not 

affect the results of the sampling episode. Calcium was detected in the pump off tubing set at 40 

ug/L, and all calcium results for the sampling episode were more than 2,000 times greater than 

the equipment blank detection. Appendix Table A-15 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, sampling 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 samples9

. 

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

for the influent to the FGD wastewater treatment system (SP-4) were collected by pouring 

ASTM Type 1 water through a precleaned funnel attached to the silicone 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 filling 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 Hatfield’s Ferry’s representative, using the same procedure 

discussed in the sample collection description (Section 3.1). 

The dissolved metals by 200.8, dissolved metals by 200.7, and dissolved hexavalent 

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

 

9 EPA did not collect a dissolved mercury field blank sample 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 for the dissolved mercury sample. Mercury was not 

detected above the method detection limit (0.24 ng/L) in the filtration blanks performed for each day of samples. 
5-3

were collected by pouring ASTM Type 1 water through the funnel and tubing and into a 10-liter 

composite container. After approximately 100 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 bottles. EPA collected the field blank samples as 

“true” split samples with Hatfield’s Ferry’s representative, 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 the three taps on the sample tap splitter with a 

clear plastic bag. Before purging 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 system (SP-5) were collected by filling a 20-liter 

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

composite container was used with a pump to fill 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 other 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. The vented cap used for the field 

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

After 24 hours, the ASTM Type 1 water in the 20-liter field blank 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 pumped through the tubing and “Y” splitter, and 

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

Hatfield’s Ferry’s representative, using the same procedure discussed in the sample collection 

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

approximately 1.5 liters 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 0.5 liters 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. 

Table 5-1 presents the field blank analytical results for SP-4 and SP-5. Only those 

analytes that were detected in the field blank samples at levels above the quantitation limit are 

included in the table. Results are rounded to three significant digits. Appendix Tables A-16 

through A-20 present all the analytical results for the field blanks from each of the sampling 

points, including all qualified results and all results that 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 duplicate samples are separate samples collected from the same 

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

is stored and analyzed independently. The RPD between 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

S D

S D

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 duplicate samples for the effluent from the 

FGD wastewater treatment system (SP-3). The samplers collected the duplicate for mercury on 

day 2, while the duplicate for all other analytes was collected on day 3. Table 5-2 presents 

analytical results and the RPD for all analytes for SP-2 and SP-3. Results are rounded to three 

significant digits. Appendix Tables A-10, A-13 and A-14 present all the analytical results for the 

effluent from the FGD wastewater treatment system (SP-2) Day 2 for mercury and Day 3 for all 

other analytes and the duplicate of the effluent from the FGD wastewater treatment system (SP3) sample analyses, including all qualified results and all results that were measured above the 

method detection limit, but below the quantitation limit (i.e., J-values). 
5-5 

Table 5-1. Field Blank Analytical Results, Hatfield’s Ferry

Analyte Sample Description Method Units C

Total MetalsMercury Influent to FGD Wastewater Treatment System Field Blank - Day 1 1631E ng/L 
5-6 

a Original and duplicate mercury samples were collected on Day 2. NC – Not calculated. ND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. B – Analyte was found in the blank and sample. F – MS and/or MSD not within laboratory control limits. 

Table 5-2. Field Duplicate Results – Effluent from FGD Wastewater Treatment System, Hatfield’s 

Analyte Method Units

Original Effluent 

from FGD 

Wastewater 

Treatment System, 

Day 3 Concentration 

(SP-2)

Duplicate Effluent 

from FGD 

Wastewater 

Treatment System 

Concentration (SP-3)

Avera

Resul

ClassicalsAmmonia 350.1 mg/L 1.10 1.10 1.10 Nitrate Nitrite as N 353.2 mg/L 140 140 140 Nitrogen, Total Kjeldahl 351.2 mg/L 19.0 16.0 17.5 Biochemical Oxygen Demand 5210B mg/L NQ (2.50) NQ (2.50) NQ (2.5Chemical Oxygen Demand 410.4 mg/L 230 230 230 Chloride 300.0 mg/L 6,900 6,500 6,700 Sulfate 300.0 mg/L 4,800 4,600 4,700 Cyanide, Total 4500 CN E mg/L 0.240 0.150 F 0.195 Total Dissolved Solids 2540C mg/L 14,000 11,000 12,50Total Suspended Solids 2540D mg/L NQ (4.00) NQ (4.00) NQ (4.0Phosphorus, Total 365.1 mg/L 0.0630 B 0.0610 B 0.062Total MetalsAluminum 200.7 ug/L NQ (200) B ND (200) NQ (20Antimony 200.8 ug/L 8.60 8.70 8.65 Arsenic 200.8 ug/L 6.00 6.80 6.40 Barium 200.7 ug/L 130 130 130 Beryllium 200.7 ug/L ND (2.00) ND (2.00) ND (2.0Boron 200.7 ug/L 190,000 B 180,000 B 185,00Cadmium 200.8 ug/L 8.70 8.60 8.65 Calcium 200.7 ug/L 1,400,000 B 1,400,000 B 1,400,0Chromium 200.8 ug/L 11.0 10.0 10.5 Cobalt 200.7 ug/L ND (20.0) ND (20.0) ND (20
5-7 

a Original and duplicate mercury samples were collected on Day 2. NC – Not calculated. ND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. B – Analyte was found in the blank and sample. F – MS and/or MSD not within laboratory control limits. 

Table 5-2. Field Duplicate Results – Effluent from FGD Wastewater Treatment System, Hatfield’s 

Analyte Method Units

Original Effluent 

from FGD 

Wastewater 

Treatment System, 

Day 3 Concentration 

(SP-2)

Duplicate Effluent 

from FGD 

Wastewater 

Treatment System 

Concentration (SP-3)

Avera

Resul

Copper 200.8 ug/L NQ (4.00) NQ (4.00) NQ (4.0Iron 200.7 ug/L NQ (200) B NQ (200) B NQ (20Lead 200.8 ug/L ND (2.00) ND (2.00) ND (2.0Magnesium 200.7 ug/L 2,800,000 B 2,800,000 B 2,800,0Manganese 200.7 ug/L 2,000 B 2,100 B 2,050 Mercurya 1631E ng/L 46.4 30.3 38.4 Molybdenum 200.7 ug/L 450 480 465 Nickel 200.8 ug/L 4.70 5.20 4.95 Selenium 200.8 ug/L 580 610 595 Silver 200.8 ug/L ND (2.00) ND (2.00) ND (2.0Sodium 200.7 ug/L 400,000 430,000 415,00Thallium 200.8 ug/L 8.20 8.90 8.55 Tin 200.7 ug/L ND (200) ND (200) ND (20Titanium 200.7 ug/L ND (20.0) ND (20.0) ND (20Vanadium 200.8 ug/L 30.0 B 30.0 B 30.0 Zinc 200.7 ug/L ND (40.0) ND (40.0) ND (40Dissolved MetalsAluminum 200.7 ug/L ND (200) ND (200) ND (20Antimony 200.8 ug/L 7.70 8.50 8.10 Arsenic 200.8 ug/L 5.90 6.60 6.25 Barium 200.7 ug/L 130 130 130 Beryllium 200.7 ug/L ND (2.00) ND (2.00) ND (2.0Boron 200.7 ug/L 170,000 B 180,000 B 175,00
5-8 

a Original and duplicate mercury samples were collected on Day 2. NC – Not calculated. ND – Not detected (number in parentheses is the quantitation limit). NQ – Analyte was measured above the method detection limit, but below the quantitation limit (number shown in parentheses is the quantitation limit

presented 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 

value. B – Analyte was found in the blank and sample. F – MS and/or MSD not within laboratory control limits. 

Table 5-2. Field Duplicate Results – Effluent from FGD Wastewater Treatment System, Hatfield’s 

Analyte Method Units

Original Effluent 

from FGD 

Wastewater 

Treatment System, 

Day 3 Concentration 

(SP-2)

Duplicate Effluent 

from FGD 

Wastewater 

Treatment System 

Concentration (SP-3)

Avera

Resul

Cadmium 200.8 ug/L 9.70 8.50 9.10 Calcium 200.7 ug/L 1,500,000 1,400,000 1,450,0Chromium 200.8 ug/L 10.0 9.50 9.75 Chromium (VI) 218.6 ug/L 3.70 4.02 3.86 Cobalt 200.7 ug/L ND (20.0) ND (20.0) ND (20Copper 200.8 ug/L NQ (4.00) NQ (4.00) NQ (4.0Iron 200.7 ug/L ND (200) ND (200) ND (20Lead 200.8 ug/L ND (2.00) ND (2.00) ND (2.0Magnesium 200.7 ug/L 2,900,000 2,700,000 2,800,0Manganese 200.7 ug/L 2,000 2,000 2,000 Mercurya 1631E ng/L 7.60 8.35 7.98 Molybdenum 200.7 ug/L 470 460 465 Nickel 200.8 ug/L 5.30 5.00 5.15 Selenium 200.8 ug/L 620 620 620 Silver 200.8 ug/L ND (2.00) ND (2.00) ND (2.0Sodium 200.7 ug/L 420,000 410,000 415,00Thallium 200.8 ug/L 8.60 8.80 8.70 Tin 200.7 ug/L ND (200) ND (200) ND (20Titanium 200.7 ug/L ND (20.0) ND (20.0) ND (20Vanadium 200.8 ug/L 29.0 30.0 29.5 Zinc 200.7 ug/L ND (40.0) ND (40.0) ND (40
6-1

6. REFERENCES

1. Eastern Research Group, Inc., 2010. Sampling Plan, Allegheny Energy’s Hatfield’s Ferry 

Steam Electric Plant. October 27. DCN SE00507. 

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 Coupled 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-1 

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. 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 Wastewate

System, Day 1 Analytical Results, Hatfield’s Ferry 

Analyte

Aqueous Phase Result

(mg/L)

Solid Phase Result

(mg/kg)

Calcula

Sample Re

ClassicalsAmmonia 1.7 J,H,P 15 H,P,Est 2Nitrate Nitrite as N 140 H,P,Est 34 H,P,Est 1Nitrogen, Total Kjeldahl 14 B,H,P,Est 560 H,P,Est 4Chloride 6,100 H,Est 1,500 H,Est 5,Sulfate 9,700 H,Est 27,000 H,Est 10Cyanide, Total 0.079 J,H,P 0.54 H,P,Est 0.Phosphorus, Total 0.12 B,H,P,Est ND (5.1) U,H,P 0.Total MetalsAluminum ND (200) U 30,000 1,76Antimony 5.2 0.33 J 2Arsenic 7.3 39 2,Barium 64 220 B 13Beryllium 1.3 J 1 5Boron 240,000 B 270 B 233Cadmium 230 3.7 4Calcium 660,000 130,000 8,23Chromium ND (8) U 110 6,Cobalt 270 5.3 5Copper 23 32 1,Iron ND (200) U 25,000 1,47Lead ND (2) U 20 B 1,Magnesium 4,500,000 17,000 5,07Manganese 65,000 210 71Mercury 202,000 10,200 521Molybdenum 350 6.1 6
A-2 

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. 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 Wastewate

System, Day 1 Analytical Results, Hatfield’s Ferry 

Analyte

Aqueous Phase Result

(mg/L)

Solid Phase Result

(mg/kg)

Calcula

Sample Re

Nickel 950 36 2,Selenium 430 39 2,Silver ND (2) U 0.12 J 7Sodium 370,000 720 377Thallium 9.6 1.5 9Tin ND (200) U 2.4 J 1Titanium ND (20) U 240 14Vanadium 27 100 5,Zinc 1,600 B 230 15
A-3 

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. 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 and Total Metals, Influent to FGD Wastewate

System, Day 2 Analytical Results, Hatfield’s Ferry 

Analyte

Aqueous Phase Result

(mg/L)

Solid Phase Result

(mg/kg)

Calculat

Sample Re

ClassicalsAmmonia 1.6 J,H,P 12 H,P,Est 2.Nitrate Nitrite as N 230 H,P,Est 69 H,P,Est 20Nitrogen, Total Kjeldahl 25 B,H,P,Est 500 H,P,Est 57Chloride 9,400 H,Est 3,000 H,Est 8,5Sulfate 11,000 H,Est 29,000 H,Est 11,Cyanide, Total 0.19 H,P,Est 0.69 H,P,Est 0.2Phosphorus, Total 0.14 B,H,P,Est 250 H,P,Est 17Total MetalsAluminum 32 J 36,000 2,550Antimony 12 0.24 J 27Arsenic 14 65 4,6Barium 75 300 B 21,Beryllium 1.9 J 1.9 13Boron 380,000 B 400 B 364Cadmium 370 3.8 59Calcium 740,000 86,000 6,730Chromium 5.4 J 120 8,4Cobalt 320 8.3 86Copper 19 44 3,1Iron ND (200) U 29,000 2,050Lead ND (2) U 30 B 2,1Magnesium 6,300,000 18,000 6,830Manganese 89,000 280 98,Mercury 1,440 19,100 654Molybdenum 980 6.8 1,3
A-4 

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. 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 and Total Metals, Influent to FGD Wastewate

System, Day 2 Analytical Results, Hatfield’s Ferry 

Analyte

Aqueous Phase Result

(mg/L)

Solid Phase Result

(mg/kg)

Calculat

Sample Re

Nickel 1,100 48 4,3Selenium 1,000 43 3,9Silver ND (2) U 0.12 J 8.Sodium 600,000 1,100 607Thallium 21 2.5 19Tin ND (200) U 3.2 J 22Titanium ND (20) U 420 29,Vanadium 60 150 10,Zinc 1,600 B 250 19,
A-5 

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. 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 Tr

System, Day 3 Analytical Results, Hatfield’s Ferry

Analyte

Aqueous Phase Result

(mg/L)

Solid Phase Result

(mg/kg)

Calculated T

Sample Result 

ClassicalsAmmonia 1.7 J,H,P 11 H,P,Est 2.3Nitrate Nitrite as N 170 H,P,Est 39 H,P,Est 157Nitrogen, Total Kjeldahl 36 B,H,P,Est 83 H,P,Est 38.3Chloride 8,700 H,Est 1,900 H,Est 8,000Sulfate 9,300 H,Est 24,000 H,Est 10,100Cyanide, Total 0.16 H,P,Est 0.73 H,P,Est 0.195Phosphorus, Total 0.13 B,H,P,Est 190 H,P,Est 13.3Total MetalsAluminum ND (200) U 30,000 2,080,000Antimony 5.6 0.19 J 18.2Arsenic 5.2 31 2,150Barium 77 180 B 12,500Beryllium 1.1 J 0.78 54.9Boron 320,000 B 280 B 309,000Cadmium 360 3.8 589Calcium 780,000 130,000 9,700,000Chromium ND (8) U 100 6,920Cobalt 360 4.5 637Copper 22 30 2,090Iron 44 J 26,000 1,800,000Lead ND (2) U 19 B 1,310Magnesium 5,500,000 17,000 6,150,000Manganese 91,000 200 96,200Mercury 1,520 21,900 789,000
A-6 

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. 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 Tr

System, Day 3 Analytical Results, Hatfield’s Ferry

Analyte

Aqueous Phase Result

(mg/L)

Solid Phase Result

(mg/kg)

Calculated T

Sample Result 

Molybdenum 400 4.6 680Nickel 1,200 38 3,710Selenium 560 44 3,550Silver ND (2) U 0.097 J 6.71Sodium 470,000 580 465,000Thallium 11 1.3 99.9Tin ND (200) U 2.1 J 145Titanium ND (20) U 160 11,100Vanadium 28 94 6,530Zinc 1,900 B 210 16,200
A-7 

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. 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 Classicals and Total Metals, Influent to FGD Waste

Treatment System, Day 4 Analytical Results, Hatfield’s Ferry 

Analyte

Aqueous Phase Result

(mg/L)

Solid Phase Result

(mg/kg)

Calculated To

Sample Result (m

ClassicalsAmmonia 1.7 J,H,P 15 H,P,Est 2.36Nitrate Nitrite as N 140 H,P,Est 49 H,P,Est 129Nitrogen, Total Kjeldahl 14 B,H,P,Est 620 H,P,Est 47Chloride 6,800 H,Est 2,200 H,Est 6,250Sulfate 9,800 H,Est 27,000 H,Est 10,300Cyanide, Total 0.092 J,H,P 0.96 H,P,Est 0.136Phosphorus, Total 0.11 B,H,P,Est 1.3 J,H,P 0.171Total MetalsAluminum ND (200) U 36,000 2,000,000Antimony 6.6 0.26 J 20.4Arsenic 6.8 51 2,830Barium 77 240 B 13,400Beryllium 1.8 J 1.3 73.7Boron 270,000 B 340 B 262,000Cadmium 230 4.4 451Calcium 710,000 110,000 6,740,000Chromium 4.7 J 120 6,660Cobalt 300 5.9 597Copper 40 39 2,200Iron ND (200) U 32,000 1,770,000Lead ND (2) U 25 B 1,390Magnesium 4,700,000 16,000 5,120,000Manganese 75,000 230 80,400Mercury 1,360 22,300 624,000
A-8 

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. 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 Classicals and Total Metals, Influent to FGD Waste

Treatment System, Day 4 Analytical Results, Hatfield’s Ferry 

Analyte

Aqueous Phase Result

(mg/L)

Solid Phase Result

(mg/kg)

Calculated To

Sample Result (m

Molybdenum 450 6.4 760Nickel 990 43 3,280Selenium 460 42 2,740Silver ND (2) U 0.085 J 4.71Sodium 370,000 720 373,000Thallium 12 1.9 116Tin ND (200) U 2.8 J 155Titanium ND (20) U 290 16,100Vanadium 30 130 7,230Zinc 1,700 B 250 15,400
A-9 

NA – 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. F – MS and/or MSD not within laboratory control limits. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Classical Pollutants - TotalAmmonia 350.1 mg/L NA 0.44 4.2 Nitrate Nitrite as N 353.2 mg/L NA 0.365 2.4 Nitrogen, Total Kjeldahl 351.2 mg/L NA 3.66 16.5 Biochemical Oxygen Demand 5210B mg/L 1 0.3 2.5 Chemical Oxygen Demand 410.4 mg/L 2 8.1 40 Chloride 300.0, 9056 mg/L NA 46.7 552 Sulfate 300.0, 9056 mg/L NA 51.6 1,200 Cyanide, Total 4500 CN E mg/L NA 0.024 0.119 Total Dissolved Solids 2540C mg/L 1 160 330 Total Suspended Solids 2540D mg/L 1 110 400 Phosphorus, Total 365.1 mg/L NA 0.0545 0.345 Classicals Pollutants - Solid (dry weight)Ammonia 350.1 mg/Kg 1 4.1 9.9 Nitrate Nitrite as N 353.2 mg/Kg 1 0.36 10 Nitrogen, Total Kjeldahl 351.2 mg/Kg 5 60 250 Chloride 9056 mg/Kg 5 9.8 150 Sulfate 9056 mg/Kg 100 170 5,000 Cyanide, Total 4500 CN E mg/Kg 1 0.1 0.49 Phosphorus, Total 365.1 mg/Kg 1 0.85 5.1 NClassicals Pollutants -Filtered AqueousAmmonia 350.1 mg/L 1 0.22 4 Nitrate Nitrite as N 353.2 mg/L 20 0.38 2 Nitrogen, Total Kjeldahl 351.2 mg/L 2 0.15 2 Chloride 300.0 mg/L 200 51 600 
A-10 

NA – 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. F – MS and/or MSD not within laboratory control limits. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Sulfate 300.0 mg/L 200 46 1,000 Cyanide, Total 4500 CN E mg/L 1 0.02 0.1 Phosphorus, Total 365.1 mg/L 1 0.005 0.05 Metals - Calculated TotalAluminum 200.7, 6010B ug/L NA 890 5,820 1,Antimony 200.8, 6020 ug/L NA 2.18 23.5 Arsenic 200.8, 6020 ug/L NA 6.55 68.2 Barium 200.7, 6010B ug/L NA 6.55 74.5 Beryllium 200.7, 6010B ug/L NA 2.52 30 Boron 200.7, 6010B ug/L NA 706 10,200 2Cadmium 200.8, 6020 ug/L NA 2.08 14.2 Calcium 200.7, 6010B ug/L NA 8,290 28,600 8,Chromium 200.8, 6020 ug/L NA 11.2 29 Cobalt 200.7, 6010B ug/L NA 6.63 74.5 Copper 200.8, 6020 ug/L NA 8.5 30.6 Iron 200.7, 6010B ug/L NA 2,200 8,400 1,Lead 200.8, 6020 ug/L NA 2.6 18.3 Magnesium 200.7, 6010B ug/L NA 700 10,200 5,Manganese 200.7, 6010B ug/L NA 17.4 509 Mercury 1631E, FGS-069 ng/L NA 7,090 32,200 5Molybdenum 200.7, 6010B ug/L NA 16.1 148 Nickel 200.8, 6020 ug/L NA 3.51 20.1 Selenium 200.8, 6020 ug/L NA 71.9 279 Silver 200.8, 6020 ug/L NA 2.71 12.4 Sodium 200.7, 6010B ug/L NA 3,510 37,200 3
A-11 

NA – 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. F – MS and/or MSD not within laboratory control limits. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Thallium 200.8, 6020 ug/L NA 0.801 12.4 Tin 200.7, 6010B ug/L NA 56.6 757 Titanium 200.7, 6010B ug/L NA 9.08 74.5 Vanadium 200.8, 6020 ug/L NA 5.71 63.1 Zinc 200.7, 6010B ug/L NA 30.6 207 Metals - DissolvedAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 2Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 7Chromium 200.8 ug/L 2 3.3 8 NChromium (VI) 218.6 ug/L 5 1.96 10 NCobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 NLead 200.8 ug/L 2 0.73 2 NMagnesium 200.7 ug/L 50 540 10,000 4,Manganese 200.7 ug/L 50 13 500 Mercury 1631E ng/L 100 24.8 52 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 
A-12 

NA – 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. F – MS and/or MSD not within laboratory control limits. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 NSodium 200.7 ug/L 2 180 10,000 3Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 NTitanium 200.7 ug/L 2 1.6 20 NVanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 Metals - Filtered AqueousAluminum 200.7 ug/L 2 9.4 200 NAntimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 2Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 6Chromium 200.8 ug/L 2 3.3 8 NCobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 NLead 200.8 ug/L 2 0.73 2 NMagnesium 200.7 ug/L 50 540 10,000 4,Manganese 200.7 ug/L 50 13 500 Mercury 1631E ng/L 20,000 5,210 10,900 2
A-13 

NA – 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. F – MS and/or MSD not within laboratory control limits. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 NSodium 200.7 ug/L 2 180 10,000 3Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 NTitanium 200.7 ug/L 2 1.6 20 NVanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 Metals - Solid (dry weight)Aluminum 6010B mg/kg 10 15 96 Antimony 6020 mg/kg 2 0.026 0.37 Arsenic 6020 mg/kg 2 0.093 1.1 Barium 6010B mg/kg 1 0.073 0.96 Beryllium 6010B mg/kg 1 0.032 0.48 Boron 6010B mg/kg 10 9.4 96 Cadmium 6020 mg/kg 2 0.017 0.18 Calcium 6010B mg/kg 10 140 480 1Chromium 6020 mg/kg 2 0.14 0.37 Cobalt 6010B mg/kg 1 0.096 0.96 Copper 6020 mg/kg 2 0.13 0.46 Iron 6010B mg/kg 10 37 140 Lead 6020 mg/kg 2 0.033 0.28 Magnesium 6010B mg/kg 1 3.6 19 
A-14 

NA – 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. F – MS and/or MSD not within laboratory control limits. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Manganese 6010B mg/kg 1 0.096 0.96 Mercury FGS-069 ng/g 4,000 73.7 671 Molybdenum 6010B mg/kg 1 0.25 1.9 Nickel 6020 mg/kg 2 0.046 0.28 Selenium 6020 mg/kg 10 1.2 4.6 Silver 6020 mg/kg 2 0.037 0.18 Sodium 6010B mg/kg 1 57 480 Thallium 6020 mg/kg 2 0.0064 0.18 Tin 6010B mg/kg 1 0.89 9.8 Titanium 6010B mg/kg 1 0.13 0.96 Vanadium 6020 mg/kg 2 0.071 0.92 Zinc 6010B mg/kg 1 0.38 2.9 
A-15 

NA – 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. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Classical Pollutants - TotalAmmonia 350.1 mg/L NA 0.484 4.22 Nitrate Nitrite as N 353.2 mg/L NA 0.696 4.24 Nitrogen, Total Kjeldahl 351.2 mg/L NA 2.1 11.5 Biochemical Oxygen Demand 5210B mg/L 1 0.59 5 Chemical Oxygen Demand 410.4 mg/L 5 20 100 Chloride 300.0, 9056 mg/L NA 116 1,340 Sulfate 300.0, 9056 mg/L NA 118 2,560 Cyanide, Total 4500 CN E mg/L NA 0.0247 0.124 Total Dissolved Solids 2540C mg/L 1 470 1,000 Total Suspended Solids 2540D mg/L 1 140 500 Phosphorus, Total 365.1 mg/L NA 0.301 1.81 Classicals Pollutants - Solid (dry weight)Ammonia 350.1 mg/Kg 1 4.1 9.8 Nitrate Nitrite as N 353.2 mg/Kg 1 0.36 10 Nitrogen, Total Kjeldahl 351.2 mg/Kg 2 25 100 Chloride 9056 mg/Kg 10 20 300 Sulfate 9056 mg/Kg 100 170 5,000 Cyanide, Total 4500 CN E mg/Kg 1 0.1 0.5 Phosphorus, Total 365.1 mg/Kg 5 4.2 25 Classicals Pollutants -Filtered AqueousAmmonia 350.1 mg/L 1 0.22 4 Nitrate Nitrite as N 353.2 mg/L 40 0.76 4 Nitrogen, Total Kjeldahl 351.2 mg/L 5 0.38 5 Chloride 300.0 mg/L 500 130 1,500 Sulfate 300.0 mg/L 500 120 2,500 Cyanide, Total 4500 CN E mg/L 1 0.02 0.1 
A-16 

NA – 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. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Phosphorus, Total 365.1 mg/L 1 0.005 0.05 Metals - Calculated TotalAluminum 200.7, 6010B ug/L NA 998 6,540 2,Antimony 200.8, 6020 ug/L NA 2.54 29.3 Arsenic 200.8, 6020 ug/L NA 7.99 88.4 Barium 200.7, 6010B ug/L NA 7.01 81.3 Beryllium 200.7, 6010B ug/L NA 2.75 33.6 Boron 200.7, 6010B ug/L NA 772 10,800 3Cadmium 200.8, 6020 ug/L NA 2.33 17 Calcium 200.7, 6010B ug/L NA 9,250 32,200 6,Chromium 200.8, 6020 ug/L NA 13.5 34.6 Cobalt 200.7, 6010B ug/L NA 7.33 81.3 Copper 200.8, 6020 ug/L NA 10.7 38.2 Iron 200.7, 6010B ug/L NA 2,430 10,100 2,Lead 200.8, 6020 ug/L NA 3.12 22.3 Magnesium 200.7, 6010B ug/L NA 710 10,100 6,Manganese 200.7, 6010B ug/L NA 17.8 505 Mercury 1631E, FGS-069 ng/L NA 3,170 28,500 6Molybdenum 200.7, 6010B ug/L NA 17.7 163 Nickel 200.8, 6020 ug/L NA 4.25 24 Selenium 200.8, 6020 ug/L NA 93.3 355 Silver 200.8, 6020 ug/L NA 3.28 15.2 Sodium 200.7, 6010B ug/L NA 3,910 40,600 6Thallium 200.8, 6020 ug/L NA 0.896 15.2 Tin 200.7, 6010B ug/L NA 60.1 785 Titanium 200.7, 6010B ug/L NA 10.6 81.3 Vanadium 200.8, 6020 ug/L NA 6.8 77.4 
A-17 

NA – 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. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Zinc 200.7, 6010B ug/L NA 33.5 226 Metals - DissolvedAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 4Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 8Chromium 200.8 ug/L 2 3.3 8 NCobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 NLead 200.8 ug/L 2 0.73 2 NMagnesium 200.7 ug/L 50 540 10,000 6,Manganese 200.7 ug/L 50 13 500 Mercury 1631E ng/L 100 24.8 52 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 NSodium 200.7 ug/L 2 180 10,000 5Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 NTitanium 200.7 ug/L 2 1.6 20 NVanadium 200.8 ug/L 2 1.7 10 
A-18 

NA – 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. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Zinc 200.7 ug/L 2 9.1 40 Metals - Filtered AqueousAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 3Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 7Chromium 200.8 ug/L 2 3.3 8 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 NLead 200.8 ug/L 2 0.73 2 NMagnesium 200.7 ug/L 50 540 10,000 6,Manganese 200.7 ug/L 50 13 500 Mercury 1631E ng/L 200 52.1 109 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 NSodium 200.7 ug/L 2 180 10,000 6Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 NTitanium 200.7 ug/L 2 1.6 20 NVanadium 200.8 ug/L 2 1.7 10 
A-19 

NA – 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. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Zinc 200.7 ug/L 2 9.1 40 Metals - Solid (dry weight)Aluminum 6010B mg/kg 10 14 90 Antimony 6020 mg/kg 2 0.027 0.39 Arsenic 6020 mg/kg 2 0.098 1.2 Barium 6010B mg/kg 1 0.068 0.9 Beryllium 6010B mg/kg 1 0.03 0.45 Boron 6010B mg/kg 10 8.8 90 Cadmium 6020 mg/kg 2 0.018 0.19 Calcium 6010B mg/kg 10 130 450 Chromium 6020 mg/kg 2 0.15 0.39 Cobalt 6010B mg/kg 1 0.09 0.9 Copper 6020 mg/kg 2 0.14 0.49 Iron 6010B mg/kg 10 34 140 Lead 6020 mg/kg 2 0.035 0.29 Magnesium 6010B mg/kg 1 3.3 18 Manganese 6010B mg/kg 1 0.09 0.9 Mercury FGS-069 ng/g 4,000 91.4 832 Molybdenum 6010B mg/kg 1 0.23 1.8 Nickel 6020 mg/kg 2 0.049 0.29 Selenium 6020 mg/kg 10 1.3 4.9 Silver 6020 mg/kg 2 0.039 0.19 Sodium 6010B mg/kg 1 53 450 Thallium 6020 mg/kg 2 0.0068 0.19 Tin 6010B mg/kg 1 0.79 8.6 Titanium 6010B mg/kg 1 0.13 0.9 Vanadium 6020 mg/kg 2 0.075 0.97 
A-20 

NA – 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. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Zinc 6010B mg/kg 1 0.36 2.7 
A-21 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Classical Pollutants - TotalAmmonia 350.1 mg/L NA 0.483 4.31 Nitrate Nitrite as N 353.2 mg/L NA 0.369 2.5 Nitrogen, Total Kjeldahl 351.2 mg/L NA 1.17 7.84 Biochemical Oxygen Demand 5210B mg/L 1 0.3 2.5 Chemical Oxygen Demand 410.4 mg/L 5 20 100 Chloride 300.0, 9056 mg/L NA 46.8 553 Sulfate 300.0, 9056 mg/L NA 53.4 1,250 1Cyanide, Total 4500 CN E mg/L NA 0.025 0.126 Total Dissolved Solids 2540C mg/L 1 240 500 3Total Suspended Solids 2540D mg/L 1 280 1,000 6Phosphorus, Total 365.1 mg/L NA 0.302 1.84 Classicals Pollutants - Solid (dry weight)Ammonia 350.1 mg/Kg 1 4.1 10 Nitrate Nitrite as N 353.2 mg/Kg 1 0.36 10 Nitrogen, Total Kjeldahl 351.2 mg/Kg 1 12 48 Chloride 9056 mg/Kg 5 9.8 150 Sulfate 9056 mg/Kg 100 170 5,000 2Cyanide, Total 4500 CN E mg/Kg 1 0.1 0.51 Phosphorus, Total 365.1 mg/Kg 5 4.3 26 Classicals Pollutants -Filtered AqueousAmmonia 350.1 mg/L 1 0.22 4 Nitrate Nitrite as N 353.2 mg/L 20 0.38 2 Nitrogen, Total Kjeldahl 351.2 mg/L 5 0.38 5 Chloride 300.0 mg/L 200 51 600 Sulfate 300.0 mg/L 200 46 1,000 
A-22 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Cyanide, Total 4500 CN E mg/L 1 0.02 0.1 Phosphorus, Total 365.1 mg/L 1 0.005 0.05 Metals - Calculated TotalAluminum 200.7, 6010B ug/L NA 1,050 6,960 2,0Antimony 200.8, 6020 ug/L NA 2.38 26.7 Arsenic 200.8, 6020 ug/L NA 7.38 79.7 Barium 200.7, 6010B ug/L NA 7.45 85.9 1Beryllium 200.7, 6010B ug/L NA 2.86 35.7 Boron 200.7, 6010B ug/L NA 818 11,300 3Cadmium 200.8, 6020 ug/L NA 2.26 16.1 Calcium 200.7, 6010B ug/L NA 9,750 34,300 9,7Chromium 200.8, 6020 ug/L NA 12.7 32.1 Cobalt 200.7, 6010B ug/L NA 7.77 85.9 Copper 200.8, 6020 ug/L NA 9.86 34.7 Iron 200.7, 6010B ug/L NA 2,590 10,600 1,8Lead 200.8, 6020 ug/L NA 2.94 20.5 Magnesium 200.7, 6010B ug/L NA 738 10,400 6,Manganese 200.7, 6010B ug/L NA 18.5 520 9Mercury 1631E, FGS-069 ng/L NA 3,170 28,600 7Molybdenum 200.7, 6010B ug/L NA 18.7 175 Nickel 200.8, 6020 ug/L NA 3.99 22.3 Selenium 200.8, 6020 ug/L NA 84.4 320 Silver 200.8, 6020 ug/L NA 3.09 14.3 Sodium 200.7, 6010B ug/L NA 4,170 42,900 4Thallium 200.8, 6020 ug/L NA 0.861 14.3 Tin 200.7, 6010B ug/L NA 58.3 769 
A-23 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Titanium 200.7, 6010B ug/L NA 11.1 85.9 1Vanadium 200.8, 6020 ug/L NA 6.31 71.3 Zinc 200.7, 6010B ug/L NA 35.2 237 1Metals - DissolvedAluminum 200.7 ug/L 2 9.4 200 ND Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 3Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 8Chromium 200.8 ug/L 2 3.3 8 NChromium (VI) 218.6 ug/L 5 1.96 10 NCobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 ND Lead 200.8 ug/L 2 0.73 2 NMagnesium 200.7 ug/L 50 540 10,000 5,3Manganese 200.7 ug/L 50 13 500 9Mercury 1631E ng/L 20 4.83 10.1 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 NSodium 200.7 ug/L 2 180 10,000 4
A-24 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 ND Titanium 200.7 ug/L 2 1.6 20 NVanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 Metals - Filtered AqueousAluminum 200.7 ug/L 2 9.4 200 ND Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 3Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 7Chromium 200.8 ug/L 2 3.3 8 NCobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 NMagnesium 200.7 ug/L 50 540 10,000 5,5Manganese 200.7 ug/L 50 13 500 9Mercury 1631E ng/L 200 52.1 109 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 N
A-25 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Sodium 200.7 ug/L 2 180 10,000 4Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 ND Titanium 200.7 ug/L 2 1.6 20 NVanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 Metals - Solid (dry weight)Aluminum 6010B mg/kg 10 15 98 3Antimony 6020 mg/kg 2 0.025 0.36 Arsenic 6020 mg/kg 2 0.091 1.1 Barium 6010B mg/kg 1 0.075 0.98 Beryllium 6010B mg/kg 1 0.032 0.49 Boron 6010B mg/kg 10 9.6 98 Cadmium 6020 mg/kg 2 0.017 0.18 Calcium 6010B mg/kg 10 140 490 1Chromium 6020 mg/kg 2 0.14 0.36 Cobalt 6010B mg/kg 1 0.098 0.98 Copper 6020 mg/kg 2 0.13 0.45 Iron 6010B mg/kg 10 37 150 2Lead 6020 mg/kg 2 0.033 0.27 Magnesium 6010B mg/kg 1 3.6 20 1Manganese 6010B mg/kg 1 0.098 0.98 Mercury FGS-069 ng/g 4,000 87.1 793 2Molybdenum 6010B mg/kg 1 0.25 2 Nickel 6020 mg/kg 2 0.046 0.27 Selenium 6020 mg/kg 10 1.2 4.5 
A-26 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. P – Sample was not preserved immediately following collection. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

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

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Silver 6020 mg/kg 2 0.037 0.18 Sodium 6010B mg/kg 1 58 490 Thallium 6020 mg/kg 2 0.0063 0.18 Tin 6010B mg/kg 1 0.78 8.5 Titanium 6010B mg/kg 1 0.14 0.98 Vanadium 6020 mg/kg 2 0.069 0.9 Zinc 6010B mg/kg 1 0.39 2.9 
A-27 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. 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 Treatment System, Day 4 Analytical Results, Hatfield

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Classical Pollutants - TotalAmmonia 350.1 mg/L NA 0.426 4.15 Nitrate Nitrite as N 353.2 mg/L NA 0.362 2.36 Nitrogen, Total Kjeldahl 351.2 mg/L NA 3.57 16.2 Biochemical Oxygen Demand 5210B mg/L 1 0.3 2.5 Chemical Oxygen Demand 410.4 mg/L 2 8.1 40 Chloride 300.0, 9056 mg/L NA 46.5 549 Sulfate 300.0, 9056 mg/L NA 50.9 1,180 Cyanide, Total 4500 CN E mg/L NA 0.0236 0.117 Total Dissolved Solids 2540C mg/L 1 240 500 Total Suspended Solids 2540D mg/L 1 92 330 Phosphorus, Total 365.1 mg/L NA 0.05 0.322 Classicals Pollutants - Solid (dry weight)Ammonia 350.1 mg/Kg 1 4.1 9.9 Nitrate Nitrite as N 353.2 mg/Kg 1 0.36 10 Nitrogen, Total Kjeldahl 351.2 mg/Kg 5 62 260 Chloride 9056 mg/Kg 5 9.8 150 Sulfate 9056 mg/Kg 100 170 5,000 Cyanide, Total 4500 CN E mg/Kg 1 0.1 0.49 Phosphorus, Total 365.1 mg/Kg 1 0.82 5 Classicals Pollutants -Filtered AqueousAmmonia 350.1 mg/L 1 0.22 4 
A-28 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. 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 Treatment System, Day 4 Analytical Results, Hatfield

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Nitrate Nitrite as N 353.2 mg/L 20 0.38 2 Nitrogen, Total Kjeldahl 351.2 mg/L 2 0.15 2 Chloride 300.0 mg/L 200 51 600 Sulfate 300.0 mg/L 200 46 1,000 Cyanide, Total 4500 CN E mg/L 1 0.02 0.1 Phosphorus, Total 365.1 mg/L 1 0.005 0.05 Metals - Calculated TotalAluminum 200.7, 6010B ug/L NA 785 5,060 2,Antimony 200.8, 6020 ug/L NA 2.03 21.2 Arsenic 200.8, 6020 ug/L NA 6.02 64.6 Barium 200.7, 6010B ug/L NA 5.97 66.8 Beryllium 200.7, 6010B ug/L NA 2.25 26.2 Boron 200.7, 6010B ug/L NA 630 9,390 2Cadmium 200.8, 6020 ug/L NA 1.97 13.6 Calcium 200.7, 6010B ug/L NA 6,710 24,800 6,Chromium 200.8, 6020 ug/L NA 10.2 26.6 Cobalt 200.7, 6010B ug/L NA 5.87 66.8 Copper 200.8, 6020 ug/L NA 7.52 28 Iron 200.7, 6010B ug/L NA 1,860 7,390 1,Lead 200.8, 6020 ug/L NA 2.43 16.2 Magnesium 200.7, 6010B ug/L NA 664 10,000 5,Manganese 200.7, 6010B ug/L NA 16.6 499 
A-29 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. 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 Treatment System, Day 4 Analytical Results, Hatfield

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Mercury 1631E, FGS-069 ng/L NA 2,810 25,300 6Molybdenum 200.7, 6010B ug/L NA 14.2 136 Nickel 200.8, 6020 ug/L NA 3.24 18 Selenium 200.8, 6020 ug/L NA 68 253 Silver 200.8, 6020 ug/L NA 2.53 11.8 Sodium 200.7, 6010B ug/L NA 3,040 33,400 3Thallium 200.8, 6020 ug/L NA 0.767 11.8 Tin 200.7, 6010B ug/L NA 47.6 651 Titanium 200.7, 6010B ug/L NA 8.09 66.8 Vanadium 200.8, 6020 ug/L NA 5.3 57.8 Zinc 200.7, 6010B ug/L NA 27.6 180 Metals - DissolvedAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 2Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 7Chromium 200.8 ug/L 2 3.3 8 NChromium (VI) 218.6 ug/L 5 1.96 10 N
A-30 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. 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 Treatment System, Day 4 Analytical Results, Hatfield

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 NLead 200.8 ug/L 2 0.73 2 NMagnesium 200.7 ug/L 50 540 10,000 4,Manganese 200.7 ug/L 50 13 500 Mercury 1631E ng/L 20 4.97 10.4 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 NSodium 200.7 ug/L 2 180 10,000 3Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 NTitanium 200.7 ug/L 2 1.6 20 NVanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 Metals - Filtered AqueousAluminum 200.7 ug/L 2 9.4 200 NAntimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 
A-31 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. 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 Treatment System, Day 4 Analytical Results, Hatfield

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 2Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 7Chromium 200.8 ug/L 2 3.3 8 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 NLead 200.8 ug/L 2 0.73 2 NMagnesium 200.7 ug/L 50 540 10,000 4,Manganese 200.7 ug/L 50 13 500 Mercury 1631E ng/L 200 52.1 109 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 NSodium 200.7 ug/L 2 180 10,000 3Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 NTitanium 200.7 ug/L 2 1.6 20 NVanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 
A-32 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. 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 Treatment System, Day 4 Analytical Results, Hatfield

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Metals - Solid (dry weight)Aluminum 6010B mg/kg 10 14 88 Antimony 6020 mg/kg 2 0.025 0.35 Arsenic 6020 mg/kg 2 0.089 1.1 Barium 6010B mg/kg 1 0.067 0.88 Beryllium 6010B mg/kg 1 0.029 0.44 Boron 6010B mg/kg 10 8.6 88 Cadmium 6020 mg/kg 2 0.016 0.18 Calcium 6010B mg/kg 10 120 440 1Chromium 6020 mg/kg 2 0.13 0.35 Cobalt 6010B mg/kg 1 0.088 0.88 Copper 6020 mg/kg 2 0.12 0.44 Iron 6010B mg/kg 10 33 130 Lead 6020 mg/kg 2 0.032 0.26 Magnesium 6010B mg/kg 1 3.2 18 Manganese 6010B mg/kg 1 0.088 0.88 Mercury FGS-069 ng/g 4,000 99.1 902 Molybdenum 6010B mg/kg 1 0.23 1.8 Nickel 6020 mg/kg 2 0.044 0.26 Selenium 6020 mg/kg 10 1.2 4.4 Silver 6020 mg/kg 2 0.036 0.18 Sodium 6010B mg/kg 1 52 440 
A-33 

NA – 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. G – pH upon receipt greater than 2 S.U. H – Sample was prepared/analyzed beyond the specified holding time. J – Result measured above the MDL, but less than the quantitation limit. 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 Treatment System, Day 4 Analytical Results, Hatfield

Analyte Method Units

Dilution 

Factor

SampleSpecific MDL Sample- Specific QL 

Thallium 6020 mg/kg 2 0.0062 0.18 Tin 6010B mg/kg 1 0.78 8.5 Titanium 6010B mg/kg 1 0.12 0.88 Vanadium 6020 mg/kg 2 0.068 0.88 Zinc 6010B mg/kg 1 0.35 2.6 
A-34 

ND – Not detected (number in parentheses is the quantitation limit). 4 – MS and/or MSD did not meet laboratory criteria, but sample concentration is four times greater than the matrix spike amount, so control limits are 

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. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

Table A-9. Effluent from FGD Wastewater Treatment System, Day 1 Analytical Results, Hatfie

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific Q

ClassicalsAmmonia 350.1 mg/L 1 0.055 1 Nitrate Nitrite as N 353.2 mg/L 20 0.38 2 Nitrogen, Total Kjeldahl 351.2 mg/L 2 0.15 2 Biochemical Oxygen Demand 5210B mg/L 1 0.24 2 Chemical Oxygen Demand 410.4 mg/L 2 8.1 40 Chloride 300.0 mg/L 200 51 600 Sulfate 300.0 mg/L 200 46 1,000 Cyanide, Total 4500 CN E mg/L 1 0.02 0.1 Total Dissolved Solids 2540C mg/L 1 94 200 Total Suspended Solids 2540D mg/L 1 1.1 4 Phosphorus, Total 365.1 mg/L 1 0.005 0.05 Total MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 50 1,700 10,000 Chromium 200.8 ug/L 2 3.3 8 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 50 540 10,000 Manganese 200.7 ug/L 2 0.51 20 Mercury 1631E ng/L 20 4.78 10 
A-35 

ND – Not detected (number in parentheses is the quantitation limit). 4 – MS and/or MSD did not meet laboratory criteria, but sample concentration is four times greater than the matrix spike amount, so control limits are 

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. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

Table A-9. Effluent from FGD Wastewater Treatment System, Day 1 Analytical Results, Hatfie

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific Q

Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 Dissolved MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 50 1,700 10,000 Chromium 200.8 ug/L 2 3.3 8 Chromium (VI) 218.6 ug/L 1 0.39 2 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 50 540 10,000 Manganese 200.7 ug/L 2 0.51 20 Mercury 1631E ng/L 1 0.24 0.5 Molybdenum 200.7 ug/L 2 1.6 40 
A-36 

ND – Not detected (number in parentheses is the quantitation limit). 4 – MS and/or MSD did not meet laboratory criteria, but sample concentration is four times greater than the matrix spike amount, so control limits are 

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. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

Table A-9. Effluent from FGD Wastewater Treatment System, Day 1 Analytical Results, Hatfie

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific Q

Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 
A-37 

ND – 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-10. Effluent from FGD Wastewater Treatment System, Day 2 Analytical Results, Hatfi

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific 

ClassicalsAmmonia 350.1 mg/L 1 0.055 1 Nitrate Nitrite as N 353.2 mg/L 20 0.38 2 Nitrogen, Total Kjeldahl 351.2 mg/L 2 0.15 2 Biochemical Oxygen Demand 5210B mg/L 1 0.3 2.5 Chemical Oxygen Demand 410.4 mg/L 2 8.1 40 Chloride 300.0 mg/L 200 51 600 Sulfate 300.0 mg/L 100 23 500 Cyanide, Total 4500 CN E mg/L 1 0.02 0.1 Total Dissolved Solids 2540C mg/L 1 94 200 Total Suspended Solids 2540D mg/L 1 1.1 4 Phosphorus, Total 365.1 mg/L 1 0.005 0.05 Total MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 50 1,700 10,000 Chromium 200.8 ug/L 2 3.3 8 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 50 540 10,000 Manganese 200.7 ug/L 2 0.51 20 Mercury 1631E ng/L 20 4.97 10.4 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 
A-38 

ND – 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-10. Effluent from FGD Wastewater Treatment System, Day 2 Analytical Results, Hatfi

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific 

Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 Dissolved MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 50 1,700 10,000 Chromium 200.8 ug/L 2 3.3 8 Chromium (VI) 218.6 ug/L 1 0.39 2 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 50 540 10,000 Manganese 200.7 ug/L 2 0.51 20 Mercury 1631E ng/L 5 1.24 2.6 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 
A-39 

ND – 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-10. Effluent from FGD Wastewater Treatment System, Day 2 Analytical Results, Hatfi

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific 

Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 
A-40 

ND – 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-11. Effluent from FGD Wastewater Treatment System, Day 3 Analytical Results, Hatfi

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific 

ClassicalsAmmonia 350.1 mg/L 1 0.055 1 Nitrate Nitrite as N 353.2 mg/L 20 0.38 2 Nitrogen, Total Kjeldahl 351.2 mg/L 2 0.15 2 Biochemical Oxygen Demand 5210B mg/L 1 0.3 2.5 Chemical Oxygen Demand 410.4 mg/L 2 8.1 40 Chloride 300.0 mg/L 200 51 600 Sulfate 300.0 mg/L 100 23 500 Cyanide, Total 4500 CN E mg/L 1 0.02 0.1 Total Dissolved Solids 2540C mg/L 1 94 200 Total Suspended Solids 2540D mg/L 1 1.1 4 Phosphorus, Total 365.1 mg/L 1 0.005 0.05 Total MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 50 1,700 10,000 Chromium 200.8 ug/L 2 3.3 8 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 50 540 10,000 Manganese 200.7 ug/L 2 0.51 20 Mercury 1631E ng/L 20 4.97 10.4 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 
A-41 

ND – 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-11. Effluent from FGD Wastewater Treatment System, Day 3 Analytical Results, Hatfi

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific 

Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 Dissolved MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 50 1,700 10,000 Chromium 200.8 ug/L 2 3.3 8 Chromium (VI) 218.6 ug/L 1 0.39 2 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 50 540 10,000 Manganese 200.7 ug/L 2 0.51 20 Mercury 1631E ng/L 10 2.48 5.2 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 
A-42 

ND – 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-11. Effluent from FGD Wastewater Treatment System, Day 3 Analytical Results, Hatfi

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific 

Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 
A-43 

ND – Not detected (number in parentheses is the quantitation limit). * - LCS or LCSD is outside the laboratory control limits. 4 – MS and/or MSD did not meet laboratory criteria, but sample concentration is four times greater than the matrix spike amount, so control limits are 

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. J – Result measured above the MDL, but less than the quantitation limit. Min – Minimum value. 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, Hatfi

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific Q

ClassicalsAmmonia 350.1 mg/L 1 0.055 1 Nitrate Nitrite as N 353.2 mg/L 20 0.38 2 Nitrogen, Total Kjeldahl 351.2 mg/L 2 0.15 2 Biochemical Oxygen Demand 5210B mg/L 1 0.3 2.5 Chemical Oxygen Demand 410.4 mg/L 2 8.1 40 Chloride 300.0 mg/L 200 51 600 Sulfate 300.0 mg/L 200 46 1,000 Cyanide, Total 4500 CN E mg/L 1 0.02 0.1 Total Dissolved Solids 2540C mg/L 1 94 200 Total Suspended Solids 2540D mg/L 1 1.1 4 Phosphorus, Total 365.1 mg/L 1 0.005 0.05 Total MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 50 1,700 10,000 Chromium 200.8 ug/L 2 3.3 8 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 
A-44 

ND – Not detected (number in parentheses is the quantitation limit). * - LCS or LCSD is outside the laboratory control limits. 4 – MS and/or MSD did not meet laboratory criteria, but sample concentration is four times greater than the matrix spike amount, so control limits are 

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. J – Result measured above the MDL, but less than the quantitation limit. Min – Minimum value. 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, Hatfi

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific Q

Magnesium 200.7 ug/L 50 540 10,000 Manganese 200.7 ug/L 2 0.51 20 Mercury 1631E ng/L 20 4.97 10.4 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 5 4.2 25 Zinc 200.7 ug/L 2 9.1 40 Dissolved MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 50 1,700 10,000 Chromium 200.8 ug/L 2 3.3 8 Chromium (VI) 218.6 ug/L 1 0.39 2 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 
A-45 

ND – Not detected (number in parentheses is the quantitation limit). * - LCS or LCSD is outside the laboratory control limits. 4 – MS and/or MSD did not meet laboratory criteria, but sample concentration is four times greater than the matrix spike amount, so control limits are 

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. J – Result measured above the MDL, but less than the quantitation limit. Min – Minimum value. 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, Hatfi

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific Q

Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 50 540 10,000 Manganese 200.7 ug/L 2 0.51 20 Mercury 1631E ng/L 10 2.48 5.2 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 
A-46 

Table A-13. Duplicate of Effluent from FGD Wastewater Treatment System, Day 2 Analytical Results

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific Q

Total MetalsMercury 1631E ng/L 20 4.97 10.4 Dissolved MetalsMercury 1631E ng/L 5 1.24 2.6 
A-47 

ND – Not detected (number in parentheses is the quantitation limit). 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. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

Table A-14. Duplicate of Effluent from FGD Wastewater Treatment System, Day 3 Analytical Results

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific 

ClassicalsAmmonia 350.1 mg/L 1 0.055 1 Nitrate Nitrite as N 353.2 mg/L 20 0.38 2 Nitrogen, Total Kjeldahl 351.2 mg/L 2 0.15 2 Biochemical Oxygen Demand 5210B mg/L 1 0.3 2.5 Chemical Oxygen Demand 410.4 mg/L 2 8.1 40 Chloride 300.0 mg/L 200 51 600 Sulfate 300.0 mg/L 100 23 500 Cyanide, Total 4500 CN E mg/L 1 0.02 0.1 Total Dissolved Solids 2540C mg/L 1 94 200 Total Suspended Solids 2540D mg/L 1 1.1 4 Phosphorus, Total 365.1 mg/L 1 0.005 0.05 Total MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 50 1,700 10,000 Chromium 200.8 ug/L 2 3.3 8 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 50 540 10,000 Manganese 200.7 ug/L 2 0.51 20 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 
A-48 

ND – Not detected (number in parentheses is the quantitation limit). 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. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

Table A-14. Duplicate of Effluent from FGD Wastewater Treatment System, Day 3 Analytical Results

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific 

Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 Dissolved MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 50 170 5,000 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 50 1,700 10,000 Chromium 200.8 ug/L 2 3.3 8 Chromium (VI) 218.6 ug/L 1 0.39 2 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 50 540 10,000 Manganese 200.7 ug/L 2 0.51 20 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 5 1.6 10 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 
A-49 

ND – Not detected (number in parentheses is the quantitation limit). 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. U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

Table A-14. Duplicate of Effluent from FGD Wastewater Treatment System, Day 3 Analytical Results

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific 

Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 
a

 Aluminum was detected in one equipment blank for the sample tap tubing set at 5.3 ug/L. 

b

 Calcium was detected in one equipment blank for the pump-off tubing set at 40 ug/L. 

ND – Not detected (number in parenthesis is the quantitation limit). 

A-50 

Table A-15. Bottle Blank and Equipment Blank Analytical Data, Hatfield’s Ferry

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) 
a

 Aluminum was detected in one equipment blank for the sample tap tubing set at 5.3 ug/L. 

b

 Calcium was detected in one equipment blank for the pump-off tubing set at 40 ug/L. 

ND – Not detected (number in parenthesis is the quantitation limit). 

A-51 

Table A-15. Bottle Blank and Equipment Blank Analytical Data, Hatfield’s Ferry

Analyte Method Process Units Concentration 

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) 

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 Blank (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 EPA 1638 Dissolved ug/L ND (2.0) 

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)
a

 Aluminum was detected in one equipment blank for the sample tap tubing set at 5.3 ug/L. 

b

 Calcium was detected in one equipment blank for the pump-off tubing set at 40 ug/L. 

ND – Not detected (number in parenthesis is the quantitation limit). 

A-52 

Table A-15. Bottle Blank and Equipment Blank Analytical Data, Hatfield’s Ferry

Analyte Method Process Units Concentration 

Aluminum EPA 1638 Dissolved ug/L ND (2.0) 

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) 

Sample Tap Tubing Set – Equipment Blank (seven feet of #73 silicone tubing, Y-splitter, and two pieces of 5 

feet of #24 silicone tubing for sample collection for mercury and metals from sample taps) 

Aluminum EPA 1638 Total Recoverable ug/L 5.3a 

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) 
a

 Aluminum was detected in one equipment blank for the sample tap tubing set at 5.3 ug/L. 

b

 Calcium was detected in one equipment blank for the pump-off tubing set at 40 ug/L. 

ND – Not detected (number in parenthesis is the quantitation limit). 

A-53 

Table A-15. Bottle Blank and Equipment Blank Analytical Data, Hatfield’s Ferry

Analyte Method Process Units Concentration 

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) 

Pump-Off Tubing Set – Equipment Blank (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 dissolved 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 40b

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 #73 silicone tubing, T-splitter, six feet of #73 silicone 

tubing, and 15 feet of #73 silicone tubing for total and dissolved sample collection for metal composites)

Aluminum EPA 1638 Total Recoverable ug/L ND (4.0) 
a

 Aluminum was detected in one equipment blank for the sample tap tubing set at 5.3 ug/L. 

b

 Calcium was detected in one equipment blank for the pump-off tubing set at 40 ug/L. 

ND – Not detected (number in parenthesis is the quantitation limit). 

A-54 

Table A-15. Bottle Blank and Equipment Blank Analytical Data, Hatfield’s Ferry

Analyte Method Process Units Concentration 

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) 
A-55 

ND – 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. Influent to FGD Wastewater Treatment System Field Blank, Day 1 Analytical Results, H

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific QL 

Total MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 2 6.7 200 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 Chromium 200.8 ug/L 2 3.3 8 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 2 21 400 Manganese 200.7 ug/L 2 0.51 20 Mercury 1631E ng/L 1 0.24 0.5 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 2 0.62 4 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 Dissolved MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 
A-56 

ND – 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. Influent to FGD Wastewater Treatment System Field Blank, Day 1 Analytical Results, H

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific QL 

Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 Beryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 2 6.7 200 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 Chromium 200.8 ug/L 2 3.3 8 Chromium (VI) 218.6 ug/L 1 0.39 2 Cobalt 200.7 ug/L 2 1.1 20 Copper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 2 21 400 Manganese 200.7 ug/L 2 0.51 20 Molybdenum 200.7 ug/L 2 1.6 40 Nickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 2 0.62 4 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 
A-57 

ND – 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-17. Effluent from FGD Wastewater Treatment System Field Blank, Day 1 Analytical 

Hatfield’s Ferry 

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific QL C

Total MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 NBeryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 2 6.7 200 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 NChromium 200.8 ug/L 2 3.3 8 Cobalt 200.7 ug/L 2 1.1 20 NCopper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 2 21 400 NManganese 200.7 ug/L 2 0.51 20 Mercury 1631E ng/L 1 0.24 0.5 NMolybdenum 200.7 ug/L 2 1.6 40 NNickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 2 0.62 4 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 NTitanium 200.7 ug/L 2 1.6 20 Vanadium 200.8 ug/L 2 1.7 10 Zinc 200.7 ug/L 2 9.1 40 Dissolved MetalsAluminum 200.7 ug/L 2 9.4 200 Antimony 200.8 ug/L 2 0.72 2 
A-58 

ND – 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-17. Effluent from FGD Wastewater Treatment System Field Blank, Day 1 Analytical 

Hatfield’s Ferry 

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific QL C

Arsenic 200.8 ug/L 2 1.2 4 Barium 200.7 ug/L 2 2.5 20 NBeryllium 200.7 ug/L 2 0.71 2 Boron 200.7 ug/L 2 6.7 200 Cadmium 200.8 ug/L 2 1.2 4 Calcium 200.7 ug/L 2 69 400 NChromium 200.8 ug/L 2 3.3 8 Chromium (VI) 218.6 ug/L 1 0.39 2 Cobalt 200.7 ug/L 2 1.1 20 NCopper 200.8 ug/L 2 0.96 4 Iron 200.7 ug/L 2 32 200 Lead 200.8 ug/L 2 0.73 2 Magnesium 200.7 ug/L 2 21 400 Manganese 200.7 ug/L 2 0.51 20 Molybdenum 200.7 ug/L 2 1.6 40 NNickel 200.8 ug/L 2 0.89 4 Selenium 200.8 ug/L 2 0.62 4 Silver 200.8 ug/L 2 0.59 2 Sodium 200.7 ug/L 2 180 10,000 Thallium 200.8 ug/L 2 0.47 2 Tin 200.7 ug/L 2 4.8 200 Titanium 200.7 ug/L 2 1.6 20 NVanadium 200.8 ug/L 2 1.7 10 NZinc 200.7 ug/L 2 9.1 40 N
A-59 

ND – 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 Field Blank, Day 2 Analytical 

Hatfield’s Ferry 

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific QL Con

Total MetalsMercury 1631E ng/L 1 0.24 0.5 ND 
A-60 

ND – 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 Field Blank, Day 3 Analytical 

Hatfield’s Ferry 

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific QL Con

Total MetalsMercury 1631E ng/L 1 0.24 0.5 ND 
A-61 

ND – Not detected (number in parentheses is the quantitation limit). U – Result below the MDL. (Number shown in parentheses is the quantitation limit). 

Table A-20. Effluent from FGD Wastewater Treatment System Field Blank, Day 4 Analytical 

Hatfield’s Ferry 

Analyte Method Units Dilution Factor Sample-Specific MDL Sample-Specific QL Con

Total MetalsMercury 1631E ng/L 1 0.24 0.5 ND 
Appendix B 

DATA REVIEW NARRATIVES