1



### MEMORANDUM

To: Ron Jordan, Work Assignment Manager, EPA EAD

CC: Jezebele Alicea, Alternate Work Assignment Manager, EPA EAD Deb Bartram, ERG TJ Finseth, ERG

From: Randy Mercurio, ERG

Date: 9/21/2011 Subject: TestAmerica Data Review Narrative for Total Metals by 200.8 – Episode 6576

TestAmerica generated analytical data for total metals (antimony, arsenic, cadmium, chromium, copper, lead, nickel, selenium, silver, thallium and vanadium) for Sample Episode 6576. The samples were analyzed according to EPA Method 200.8.

Table 1 summarizes the samples TestAmerica extracted and analyzed for total metals by

EPA Method 200.8.

Table 1. EPA Episode 6576 Total Metals – Sample Identification

EPA Sample

# EPA Sample Description Lab Sample

ID # Sample

Matrix Sampling

Date Receipt

Date

72511 FGD Influent, Day 3 280

- 14451

- 1 Aqueous 4/7/2011 4/11/2011

72512 FGD Influent, Day 2 280

- 14362

- 1 Aqueous 4/6/2011 4/8/2011

72513 Distillate from Brine Concentrator, Day 1 280

- 14362

- 3 Aqueous 4/5/2011 4/8/2011

72514 Distillate from Brine Concentrator, Day 2 280

- 14362

- 7 Aqueous 4/6/2011 4/8/2011

72515 Distillate from Brine Concentrator, Day 3 280

- 14451

- 2 Aqueous 4/7/2011 4/11/2011

72516 Condensate from Crystallizer, Day 1 280

- 14362

- 5 Aqueous 4/5/2011 4/8/2011

72517 Condensate from Crystallizer, Day 2 280

- 14362

- 8 Aqueous 4/6/2011 4/8/2011

72518 Condensate from Crystallizer, Day 3 280

- 14451

- 3 Aqueous 4/7/2011 4/11/2011

72519 FGD Influent Field Blank, Day 1 280

- 14362

- 2 Aqueous 4/5/2011 4/8/2011

72520 Distillate from BC Field Blank, Day 1 280

- 14362

- 4 Aqueous 4/5/2011 4/8/2011

72523 Condensate from Crystallizer Field

Blank, Day 1 280

- 14362

- 6 Aqueous 4/5/2011 4/8/2011

SUMMARY

The samples were prepared for total metals analysis according to TestAmerica’s “FGD ICP/MS SOP: Inductively Coupled Plasma Mass Spectrometry for Trace Element Analysis in Flue Gas Desulfurization Wastewaters,” dated October 6, 2010, based on EPA Method 200.8, by ICP/MS analysis.2

There were no findings from the data review that required additional data qualifiers (excluding those identified by the laboratory) in this dataset.

INTERNAL STANDARDIZATION

All internal standards used by TestAmerica were within the method criteria.

INITIAL CALIBRATION

TestAmerica performed the initial calibrations on each analysis day. The initial calibration for the ICP-MS analysis consisted of a blank and four calibration standards.

INITIAL AND CONTINUING CALIBRATION VERIFICATION (ICV/CCV)

The initial calibration verifications (ICV) and continuing calibration verifications (CCV) performed by TestAmerica all had recoveries within the method criteria.

METHOD/INSTRUMENT BLANKS

All the method blanks were less than the reporting limit. No additional qualifiers were required for method blanks.

All instrument blanks (ICB and CCB) were less than the reporting limit; however, some elements were above the MDL and flagged with a “J” qualifier. No additional qualifiers were required for instrument blanks.

REPORTING LIMIT VERIFICATION STANDARD (CRI)

All CRI samples passed TestAmerica’s SOP control limits of 50–150% recovery.

LABORATORY CONTROL SAMPLES (LCS)

All LCS samples passed the method QC limits of 85–115% recovery.

SYNTHETIC FGD INTERFERENCE CHECK SOLUTION (ICSA)

Based on TestAmerica’s SOP, all interference check sample A (ICSA) results had analytes of interest with concentrations less than the RL or less than five times the RL when known inherent contaminants are present in the stock solution used to make the

ICS.

All interference check sample B (ICSAB) synthetic spikes recovered within

TestAmerica’s SOP criteria of 70–130% of the true value.3

SERIAL DILUTION (SRD)

The serial dilution performed for the total sample 72514 Distillate from Brine Concentrator, Day 2 (280-14362-7) met Test America’s requirement of ±10% difference.

FIELD DUPLICATES

Field duplicates were not collected for this sampling episode.

MATRIX SPIKE AND MATIX SPIKE DUPLICATES (MS/MSD)

Matrix spikes (MS) and matrix spike duplicates (MSD) were performed on the total samples of 72514 Distillate from Brine Concentrator, Day 2 (280-14362-7 MS/MSD) and 72518 Condensate from Crystallizer, Day 3 (280-14451-3 MS/MSD). The MS/MSD of both samples passed the method control limits of 70–130% recovery and the RPD control limits of ±20% from the FGD ICP/MS SOP. No additional data qualifiers were required for MS/MSD samples.

POST DIGESITON SPIKES

A post digestion spike was performed on sample 72514 Distillate from Brine Concentrator, Day 2 (280-14362-7 PDS), which passed TestAmerica’s control limits of 85–115% recovery. No additional data qualifiers were required.

DETECTION LIMITS

The laboratory performed an MDL study in the synthetic FGD wastewater matrix, instead of reagent water.1



### MEMORANDUM

To: Ron Jordan, Work Assignment Manager, EPA EAD

CC: Jezebele Alicea, Alternate Work Assignment Manager, EPA EAD Deb Bartram, ERG TJ Finseth, ERG

From: Randy Mercurio, ERG

Date: 9/21/2011 Subject: TestAmerica Data Review Narrative for Total Metals by 200.7 – Episode 6576

TestAmerica generated analytical data for total metals (aluminum, boron, barium, beryllium, calcium, cobalt, iron, magnesium, manganese, molybdenum, sodium, tin, titanium, and zinc). The samples were analyzed according to EPA Method 200.7.

Table 1 summarizes the samples TestAmerica extracted and analyzed for total metals by

EPA Method 200.7.

Table 1. EPA Episode 6576 Total Metals – Sample Identification

EPA Sample

# EPA Sample Description Lab Sample

ID # Sample

Matrix Sampling

Date Receipt

Date

7 2511 FGD Influent, Day 3 280

- 14451

- 1 Aqueous 4/7 /201 1 4/11 /201 1

72512 FGD Influent, Day 2 280

- 14362

- 1 Aqueous 4/ 6 /2011 4/8 /201 1

7 2513 Distillate from Brine Concentrator, Day 1 280

- 14362

- 3 Aqueous 4/5/2011 4/8/2011

7 2514 Distillate from Brine Concentrator, Day 2 280

- 14362

- 7 Aqueous 4/ 6 /2011 4/8/2011

7 2515 Distillate from Brine Concentrator, Day 3 280

- 14451

- 2 Aqueous 4/7 /201 1 4/11 /201 1

7 2516 Condensate from Crystallizer

, Day 1 280

- 14362

- 5 Aqueous 4/5/2011 4/8/2011

7 2517 Condensate from Crystallizer

, Day 2 2 80

- 14362

- 8 Aqueous 4/ 6 /2011 4/8/2011

72518 Condensate from Crystallizer, Day 3 280

- 14451

- 3 Aqueous 4/7 /201 1 4/11 /201 1

7 2519 FGD Influent Field Blank, Day 1 280

- 14362

- 2 Aqueous 4/ 5 /2011 4/8/2011

72 520 Distillate from BC Field Blank, Day

1 280

- 14362

- 4 Aqueous 4/5/2011 4/8/2011

7 2523 Condensate from Crystallizer Field

Blank, Day 1 280

- 14362

- 6 Aqueous 4/5/2011 4/8/20112

SUMMARY

The samples were prepared for total metals analysis according to Test America’s SOP for ICP Analysis for Trace Metals by Method 200.7. Any significant findings are summarized below. No additional data qualifiers were required for this data set.

• The post digestion spike (PDS) for total sodium for sample 72514 failed the

method criteria of 85–115%.

• The post digestion spike (PDS) for total boron for sample 72514 failed the method criteria of 85–115%, but was not qualified because the sample concentration was greater than 4 times the spike concentration.

SAMPLE RECEIPT, HANDLING AND STORAGE ISSUES

No issues were found with sample receipt, handling, or storage.

INTERNAL STANDARDIZATION

While the internal standard (ISTD) Yttrium was used for these analyses, no checks on the ISTD recoveries in the ±30% criterion of the calibration blank as per Section 9.11 of the

SOP were seen. All ISTD were within the control limits.

INITIAL CALIBRATION

TestAmerica performed the initial calibrations on each analysis day. The initial calibration for the ICP analysis consisted of a blank and one calibration standard.

INITIAL AND CONTINUING CALIBRATION VERIFICATIONS

The initial calibration verifications (ICV) and continuing calibration verifications (CCV) performed by TestAmerica all had recoveries within the method criteria. In some cases the CCVs failed the method criteria, but the affected samples were re-analyzed.

METHOD/INSTRUMENT BLANKS

All the method blanks were less than the reporting limit; however, some had levels above the MDL and were flagged with the “J” qualifier.

All instrument blanks (ICB and CCB) were less than the reporting limit; however, some elements were above the MDL and were flagged with the “J” qualifier.

REPORTING LIMIT VERIFICATION STANDARD (CRI)

All CRI samples passed Test America’s SOP control limits of 50–150% recovery.3

LABORATORY CONTROL SAMPLES (LCS)

All LCS passed the method control limits of 85–115% recovery.

INTERFERENCE CHECK SOLUTIONS

Interference checks were performed using the synthetic matrix as the check solution. All recoveries met the method-specified criteria.

SERIAL DILUTION (SRD)

The serial dilution performed for the total sample 72514 Distillate from Brine Concentrator, Day 2 (280-14362-7) met Test America’s requirement of ±10% difference.

FIELD DUPLICATES

Field duplicates were not collected for this sampling episode.

MATRIX SPIKE AND MATIX SPIKE DUPLICATES (MS/MSD)

Matrix spikes (MS) and matrix spike duplicates (MSD) were performed on the total samples of 72514 Distillate from Brine Concentrator, Day 2 (280-14362-7 MS/MSD) and 72518 Condensate from Crystallizer, Day 3 (280-14451-3 MS/MSD).

The MS of sample 72514 failed EPA Method 200.7 spike recovery control limits of 70– 130% for boron, but was flagged with a “4” qualifier indicating that the concentration in the parent sample was greater than 4 times the spike and could not be reliably calculated. Otherwise, the MS/MSD spike recoveries were always within the control limits of 70- 130% for both samples. The relative percent difference (RPD) for the MS/MSD of samples 72514 and 72518 passed TestAmerica’s SOP requirement of ± 20%.

POST DIGESTION SPIKE

A PDS of total sample 72514 Distillate from Brine Concentrator, Day 2 (280-14362-7 PDS) failed the method criteria of 85–115% for sodium, which was qualified with a “W”. Boron also failed at 158% recovery but was not qualified because the sample concentration was greater than 4 times the spike concentration. Boron, did however, pass the serial dilution criteria for this sample demonstrating that there was no significant matrix interference. No additional data qualifiers are required.

DETECTION LIMITS

The laboratory performed an MDL study in the synthetic FGD wastewater matrix, instead of reagent water.1



### MEMORANDUM

To: Ron Jordan, Work Assignment Manager, EPA EAD

CC: Jezebele Alicea, Alternate Work Assignment Manager, EPA EAD Deb Bartram, ERG TJ Finseth, ERG

From: Ariel Atkinson, ERG Donna Tedder, ERG

Date: 9/21/2011 Subject: FGS Data Review Narrative for Total Mercury – Episode 6576

Frontier Global Sciences (FGS) generated analytical data for total mercury. The samples were analyzed according to EPA Method 1631E for total mercury by Cold Vapor Atomic Fluorescence Spectrometry (CVA-FS) analysis.

Table 1 summarizes the 15 samples (excluding laboratory prep blanks) FGS extracted and analyzed for total mercury.

Table 1. EPA Episode 6576 Total Mercury – Sample Identification

EPA Sample # Lab Sample

ID # Sample

Matrix Sample Description Sampling

Date

72511 1104114-13 Aqueous FGD Influent, Day 3 04/07/2011

72512 1104114-01 Aqueous FGD Influent, Day 2 04/06/2011

72513 1104102-04RE2 Aqueous Distillate from Brine Concentrator, Day 1 04/05/2011

72514 1104103-04RE2 Aqueous Distillate From Brine Concentrator, Day 2 04/06/2011

72515 1104114-06 Aqueous Distillate From Brine Concentrator, Day 3 04/07/2011

72516 1104102-09 Aqueous Condensate from Crystallizer, Day 1 04/05/2011

72517 1104103-09 Aqueous Condensate from Crystallizer, Day 2 04/06/2011

72518 1104114-11RE1 Aqueous Condensate From Crystallizer, Day 3 04/07/2011

72519 1104114-02 Aqueous FGD Influent Field Blank, Day 1 04/05/2011

72520 1104102-05 Aqueous Distillate from BC Field Blank, Day 1 04/05/2011

72521 1104103-05 Aqueous Distillate from BC Field Blank, Day 2 04/06/2011

72522 1104114-07 Aqueous Distillate From BC Field Blank, Day 3 04/07/2011

72523 1104102-10 Aqueous Cond. from Crystlzr., Field Blank, Day 1 04/05/2011

72524 1104103-10 Aqueous Cond. from Crystlzr., Field Blank, Day 2 04/06/2011

72525 1104114-12 Aqueous Cond. From Crystlzr., Field Blank, Day 3 04/07/20112

SUMMARY

The samples were prepared according to EPA Method 1631E to be analyzed by CVAFS.

There were no findings from the data review that required additional qualifiers in this

dataset.

SAMPLE RECEIPT, HANDLING, AND STORAGE ISSUES

The FGD Influent Day 2 sample ID was wrong on the chain of custody; the sample number was given as 72511 when it should have been 72512. There were no other sample receipt issues in this data package.

INITIAL CALIBRATION

FGS performed the initial calibrations on the analysis day. The initial calibration for the CVAFS analysis consisted of a blank and five calibration standards with a correlation

coefficient ≥ 0.995. All method-specified criteria were met.

INITIAL AND CONTINUING CALIBRATION VERIFICATIONS

All initial and continuing calibration verifications (ICVs, CCVs) met method-specified

criteria.

BLANKS

All the preparation blanks or laboratory reagent blanks (LRBs) and the continuing calibration blanks (CCBs) met method-specified criteria. There was an FGD Influent field blank (FB) on Day 1, while the Influent samples were collected on Days 2 and 3.

DUPLICATES

No field duplicate samples were collected with these sampling episodes. One sample was analyzed as a laboratory duplicate, Condensate from Crystallizer, Day 3 (sample 72518). The RPD was 5.62%. The laboratory’s RPD criteria between analytical duplicates is

24%.

LABORATORY CONTROL SAMPLES

All laboratory control samples were within Frontier’s control limits of 80-120% recovery

and 24% RPD.

M ATRIX SPIKE AND MATIX SPIKE DUPLICATES (MS/MSD)3

Matrix spikes (MS) and matrix spike duplicates (MSD) were performed on samples 72518 and 72514. All aqueous MS/MSD recoveries were within method specifications of 71-125%. All RPDs met method-specified criteria.

DETECTION LIMITS

The laboratory MDL in the synthetic matrix was 0.239 ng/L. Results below this MDL were reported as not detected (ND).1



### MEMORANDUM

To: Ron Jordan, Work Assignment Manager, EPA EAD

CC: Jezebele Alicea, Alternate Work Assignment Manager, EPA EAD Deb Bartram, ERG TJ Finseth, ERG

From: Donna Tedder, ERG

Date: 9/21/2011 Subject: TestAmerica Data Review Narrative for Classicals Analyses – Episode 6576

TestAmerica Denver Laboratory generated analytical data for classical wet chemistry analyses for Sample Episode 6576. All samples were tested for the following analytes:

• Ammonia by EPA method 350.1,

• Chloride and Sulfate by EPA method 300.0,

• Chemical Oxygen Demand (COD) by EPA method 410.4,

• Nitrate/Nitrite by EPA method 353.2,

• Phosphorus (total) by EPA method 365.1,

• Total Dissolved Solids (TDS) by SM 2540C,

• Total Kjeldahl Nitrogen (TKN) by EPA method 351.2, and

• Total Suspended Solids (TSS) by SM 2540D.

Table 1 summarizes the 11 samples that TestAmerica analyzed for the above analytes.

Table 1. EPA Episode 6576 Classical Analytes – Sample Identification

EPA Sample # Sample

Matrix Sample Description Sampling

Date

72511 Water FGD Influent, Day 3 4/7/11

72512 Water FGD Influent, Day 2 4/6/11 72513 Water Distillate From Brine Concentrator, Day 1 4/5/11 72514 Water Distillate From Brine Concentrator, Day 2 4/6/11 72515 Water Distillate From Brine Concentrator, Day 3 4/7/11 72516 Water Condensate From Crystallizer, Day 1 4/5/11 72517 Water Condensate From Crystallizer, Day 2 4/6/11 72518 Water Condensate From Crystallizer, Day 3 4/7/11 72519 Water FGD Influent Field Blank, Day 1 4/5/11 72520 Water Distallate From BC Field Blank, Day 1 4/5/11 72523 Water Conds. From Crystllzr Field Blank, Day 1 4/5/112

SUMMARY

All samples were analyzed within the holding time specified in 40 CFR 136 Table II. All samples were preserved appropriately unless otherwise specified below. Group I and Group II samples 72511, 72515, and 72518 were received at 15.4°C and 17.1°C due to international shipping issues. The client was notified and analyses performed.

If applicable, the appropriate number of standards was used to create a calibration curve. If sample results were above the highest standard used to create the curve, the sample was diluted and reanalyzed. All sample results were between the lowest and highest standards unless noted below. Additionally, unless otherwise noted, all calibration blanks and calibration verification samples met the criteria specified in the method.

If required by the method, the quality control sample (QCS), a secondary source standard used to verify calibration, was always within the control limits specified by the method.

As described below, the analyte of interest was detected above the method detection limit (MDL) in some laboratory reagent blanks (LRB). However, the analyte of interest was never detected above the reporting limit (RL) in the LRBs. If required by the method, all laboratory fortified blanks (LFB) met the criteria specified in the method unless specified

below.

If required by the method, a matrix spike (MS) sample was analyzed on samples 72514 and 72518 for each analyte to check for matrix interferences. For some analytes, TestAmerica spiked more samples than required. All MS samples analyzed met the criteria specified in the method unless described below.

DATA NOTES/ISSUES

Ammonia

Samples 72511, 72515, and 72518 were received at 15.4°C and 17.1°C. The method requires samples to be maintained at 4°C between collection and analysis. The results for these samples were qualified as estimated values.

The MS/MSD analysis on sample 72518 yielded percent recoveries for the MS and MSD of 100% and 94%, respectively. Since the sample concentration was greater than 4 times the spike amount in the MS and MSD samples, TestAmerica stated that the percent recoveries and RPDs could not be reliably calculated and the results were flagged with a

“4”.

BOD 5

No BOD was analyzed for this sampling episode.3

Chloride and Sulfate

Samples 72511, 72515, and 72518 were received at 15.4°C and 17.1°C. The method requires samples to be maintained at 4°C between collection and analysis for sulfate (no temperature requirements for chloride analysis). Sulfate in samples 72515 and 72518 was not detected, and therefore, does not need additional qualification. Sample 72511 was qualified as an estimated value.

The MS/MSD chloride recoveries for sample 72514 were above the EPA Method 300.0 control limits and qualified with an “F”. The LFB associated with this sample met the method criteria. There was no need for additional qualifiers for the sample.

Sample 72514 and its laboratory duplicate had results below the lowest calibration standard and the RL, but above the MDL. This result was flagged with a “J,” and does not need additional qualification.

COD

Samples 72511, 72515, and 72518 were received at 15.4°C and 17.1°C. The method requires samples to be maintained at 4°C between collection and analysis. Samples 72515 and 72518 have been qualified with a “J”, and do not need additional qualification. Sample 72511 was qualified as an estimated value.

The MS/MSD recoveries for sample 72514 were above the control limits of 90-110% required by EPA method 410.4 with recoveries at 122% and 112%, respectively. The RPD between the MS and MSD was 11%, which is also outside the method control limits. COD for sample 72514 was not detected, and the MS and MSD results were qualified with an “F.” The LFB percent recoveries associated with this sample met the method criteria. There was no need for additional qualifiers for the sample.

Sample 72515 had a result below the lowest calibration standard and the RL, but above the MDL. This result was flagged with a “J,” and does not need additional qualification.

Cyanide

No cyanide was analyzed for this sampling episode.

Nitrate/Nitrite

Samples 72511, 72515, and 72518 were received at 15.4°C and 17.1°C. The method requires samples to be maintained at 4°C between collection and analysis. Samples 72511, 72515, and 72518 were qualified as estimated values.4

Phosphorus

Samples 72511, 72515, and 72518 were received at 15.4°C and 17.1°C. The method requires samples to be maintained at 4°C between collection and analysis. Phosphorus in samples 72515 and 72518 was not detected, and therefore, does not need additional qualification. Sample 72511 was qualified as an estimated value.

TDS

Constant weight was not achieved after 3 drying cycles for sample 72517. The samples were not qualified, but results may be biased high.

The RPD for the laboratory duplicate for sample 72518 was 43%, which is greater than 10% as required by SM 2540C. Because the RPD was greater than the method control limits, sample 72518 should be qualified as an estimated value. However, this sample is already qualified with a “J” meaning that the result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Therefore, no additional qualifier is needed. The RPD for the sample 72514 laboratory duplicate was within

method limits.

TKN

The ammonia concentrations were greater than the TKN, particularly for samples 72512 and 72517, and were re-analyzed for confirmation. Since TKN is a sum of free ammonia and organic nitrogen compounds, the ammonia concentrations should be less than the TKN numbers. The method states that in samples with high nitrate levels the TKN may be biased low. The TKN results for samples 72512 and 72517 were qualified as

estimated values.

Samples 72511, 72515, and 72518 were received at 15.4°C and 17.1°C. The method requires samples to be maintained at 4°C between collection and analysis. These results were qualified as estimated values.

TestAmerica performed MS/MSD analysis on sample 72514. The percent recoveries for the MS and MSD samples were 85% and 78%, respectively. These did not meet the method control limits of 90-110%, but did meet the laboratory control limits of 54-131%. Since the sample concentration was greater than 4 times the spike amount in the MS and MSD samples, TestAmerica stated that the percent recoveries and RPDs could not be reliably calculated. Therefore, sample 72514 was not additionally qualified because it is not possible to determine if the failure was a result of matrix interferences or caused by spiking the sample with too little analyte.

TKN was detected at 0.124 mg/L in the LRB associated with samples 72511, 72514, and 72518. This blank result was greater than the MDL (0.077 mg/L), but less than the RL (1.0 mg/L). Because the blank result was less than the RL, no samples were qualified

based on the LRB result.5

TSS

Constant weight was not achieved after 3 drying cycles for sample 72512 and the laboratory duplicate.

The RPD for the laboratory duplicate of sample 72512 was 33%. This RPD was greater than the method control criteria of 10%. Sample 72512 was qualified as an estimated

value. The RPD for the laboratory duplicates of samples 72514 and 72518 could not be

calculated because all results were not detected.

Table 2. Data Review Summary Table

Sample Analyte Qualifier/Action Reason Level Detected 72511 Sulfate Estimated Value Sample received at > 4°C 5700 mg/L 72511 Ammonia Estimated Value Sample received at > 4°C 12 mg/L 72515 Ammonia Estimated Value Sample received at > 4°C 15 mg/L 72518 Ammonia Estimated Value Sample received at > 4°C 22 mg/L 72511 COD Estimated Value Sample received at > 4°C 100 mg/L

72511 Nitrate/nitrite Estimated Value Sample received at > 4°C 46 mg/L

72515 Nitrate/nitrite Estimated Value Sample received at > 4°C 0.16 mg/L

72518 Nitrate/nitrite Estimated Value Sample received at > 4°C 0.1 mg/L 72511 Phosphorus Estimated Value Sample received at > 4°C 6 mg/L 72511 TKN Estimated Value Sample received at > 4°C 11 mg/L

72512 TKN Estimated Value TKN value < Ammonia

value 3.6 mg/L

72515 TKN Estimated Value Sample received at > 4°C 16 mg/L

72517 TKN Estimated Value TKN value < Ammonia

value 37 mg/L

72518 TKN Estimated Value Sample received at > 4°C 25 mg/L 72512 TSS Estimated Value Lab duplicate RPD > method-specified criteria 2600 mg/LAppendix C

PICTURES FROM THE SAMPLING EPISODEC-1 Figure C-1. Sampler Working Inside a “Cleanbox”C-2 Figure C-2. Picture of Sampling Location and Tubing Attached to the PVC Pipe at the Influent to the FGD Wastewater Treatment SytemC-3 Figure C-3. Sample Collection Set-Up at the Distillate from the Brine ConcentratorC-4 Figure C-4. Sample Collection Set-Up at the Condensate from the Crystallizer