NC0047597_Response to Notice_20220623

aceAnalytical
www.pacelabs.cam
Pace Analytical Services, LLC
6701 Conference Drive
Raleigh, NC 27607
[phone]
April 20, 2022
Charles Cocker
South Durham WRF
6605 Farrington Road
Chapel Hill, NC 27517
RE: Project: MONTHLY LL HG-Revised Report
Pace Project No.: 92586942
Dear Charles Cocker:
Enclosed are the analytical results for sample(s) received by the laboratory on February 08, 2022. The results relate only
to the samples included in this report.
Analyses were performed at the Pace Analytical Services location indicated on the sample analyte page for analysis unless
otherwise footnoted.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services - Asheville
• Pace Analytical Services - Charlotte
This revision was issued on 04/20/22 to report rerun results per client request.
If you have any questions concerning this report, please feel free to contact me.
Sincerely, (�
Lceur
Matthew Brainard
[e-mail]
[phone]
Project Manager
Enclosures
cc: Accounts Payable, South Durham WRF
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 1 of 29

aceAnalytical
www.pacelabs.cam
Pace Analytical Services, LLC
6701 Conference Drive
Raleigh, NC 27607
[phone]
CERTIFICATIONS
Project: MONTHLY LL HG-Revised Report
Pace Project No.: 92586942
Pace Analytical Services Charlotte
South Carolina Laboratory ID: 99006
9800 KinceyAve. Ste 100, Huntersville, NC 28078
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Laboratory ID: 99006
Pace Analytical Services Asheville
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
North Carolina Drinking Water Certification #: 37712
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99006001
South Carolina Drinking Water Cert. #: 99006003
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
Louisiana DoH Drinking Water #: LA029
Virginia/VELAP Certification #: 460221
South Carolina Laboratory ID: 99030
South Carolina Certification #: 99030001
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 2 of 29

aceAnalytical
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Pace Analytical Services, LLC
6701 Conference Drive
Raleigh, NC 27607
[phone]
SAMPLE ANALYTE COUNT
Project: MONTHLY LL HG-Revised Report
Pace Project No.: 92586942
Lab ID Sample ID
Method
Analytes
Analysts Reported Laboratory
92586942001 SD PLANT INFLUENT EPA 1631E NMP 1 PASI-A
92586942002 SD PLANT INFLUENT BLANK EPA 1631E NMP 1 PASI-A
92586942003 SD PLANT EFFLUENT EPA 1631E NMP 1 PASI-A
92586942004 SD PLANT EFFLUENT BLANK EPA 1631E NMP 1 PASI-A
92586942005 SD PRIMARY EFFLUENT EPA 1631E NMP 1 PASI-A
92586942006 SD PRIMARY EFFLUENT BLANK EPA 1631E NMP 1 PASI-A
92586942007 SD AERATION BASIN EPA 1631E NMP 1 PASI-A
92586942008 SD AERATION BASIN BLANK EPA 1631E NMP 1 PASI-A
92586942009 SD SLUDGE TO DIGESTOR EPA7471B DBB1 1 PASI-A
SW-846 KDF 1 PASI-C
PASI-A = Pace Analytical Services - Asheville
PASI-C = Pace Analytical Services - Charlotte
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 3 of 29

aceAnalytical
www.pacelabs.com
Pace Analytical Services, LLC
6701 Conference Drive
Raleigh, NC 27607
[phone]
ANALYTICAL RESULTS
Project: MONTHLY LL HG-Revised Report
Pace Project No.: 92586942
Sample: SD PLANT INFLUENT Lab ID: 92586942001 Collected: 02/07/22 14:40 Received: 02/08/22 12:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1631E Mercury,Low Level Analytical Method: EPA 1631E Preparation Method: EPA 1631E
Pace Analytical Services - Asheville
Mercury 9.64 ng/L
0.50 1 02/15/22 14:55 02/16/22 20:32 7439-97-6 BC
Sample: SD PLANT INFLUENT Lab ID: 92586942002 Collected: 02/07/22 14:45 Received: 02/08/22 12:30 Matrix: Water
BLANK
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1631E Mercury,Low Level Analytical Method: EPA 1631E Preparation Method: EPA 1631E
Pace Analytical Services - Asheville
Mercury 1.12 ng/L
0.50 1 02/15/22 14:55 02/17/22 09:41 7439-97-6 BC, CO
Sample: SD PLANT EFFLUENT Lab ID: 92586942003 Collected: 02/07/22 14:50 Received: 02/08/22 12:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1631E Mercury,Low Level Analytical Method: EPA 1631E Preparation Method: EPA 1631E
Pace Analytical Services - Asheville
Mercury 28.2 ng/L
2.5 1 02/15/22 14:55 02/16/22 20:55 7439-97-6 BC
Sample: SD PLANT EFFLUENT Lab ID: 92586942004 Collected: 02/07/22 14:55 Received: 02/08/22 12:30 Matrix: Water
BLANK
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1631E Mercury,Low Level Analytical Method: EPA 1631E Preparation Method: EPA 1631E
Pace Analytical Services - Asheville
Mercury 0.656 ng/L
0.50 1 02/15/22 14:55 02/17/22 09:49 7439-97-6 BC, CO
Sample: SD PRIMARY EFFLUENT Lab ID: 92586942005 Collected: 02/07/22 15:00 Received: 02/08/22 12:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1631E Mercury,Low Level Analytical Method: EPA 1631E Preparation Method: EPA 1631E
Pace Analytical Services - Asheville
Mercury 52.3 ng/L
5.0 1 02/15/22 14:55 02/16/22 21:03 7439-97-6 BC
REPORT OF LABORATORY ANALYSIS
Date: 04/20/2022 11:58 AM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 4 of 29

aceAnalytical
www.pacelabs.cam
Pace Analytical Services, LLC
6701 Conference Drive
Raleigh, NC 27607
[phone]
ANALYTICAL RESULTS
Project: MONTHLY LL HG-Revised Report
Pace Project No.: 92586942
Sample: SD PRIMARY EFFLUENT Lab ID: 92586942006 Collected: 02/07/22 15:05 Received: 02/08/22 12:30 Matrix: Water
BLANK
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1631E Mercury,Low Level Analytical Method: EPA 1631E Preparation Method: EPA 1631E
Pace Analytical Services - Asheville
Mercury 0.752 ng/L
0.50 1 02/15/22 14:55 02/17/22 09:56 7439-97-6 BC, CO
Sample: SD AERATION BASIN Lab ID: 92586942007 Collected: 02/07/22 15:10 Received: 02/08/22 12:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1631E Mercury,Low Level Analytical Method: EPA 1631E Preparation Method: EPA 1631E
Pace Analytical Services - Asheville
Mercury 49.5 ng/L
5.0 1 02/15/22 14:55 02/16/22 21:11 7439-97-6 BC
Sample: SD AERATION BASIN Lab ID: 92586942008 Collected: 02/07/22 15:15 Received: 02/08/22 12:30 Matrix: Water
BLANK
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1631E Mercury,Low Level Analytical Method: EPA 1631E Preparation Method: EPA 1631E
Pace Analytical Services - Asheville
Mercury 0.592 ng/L
0.50 1 02/15/22 14:55 02/17/22 10:04 7439-97-6 BC, CO
Sample: SD SLUDGE TO DIGESTOR Lab ID: 92586942009 Collected: 02/07/22 15:20 Received: 02/08/22 12:30 Matrix: Solid
Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions.
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
7471 Mercury
Mercury
Percent Moisture
Percent Moisture
Analytical Method: EPA 7471 B Preparation Method: EPA 7471 B
Pace Analytical Services - Asheville
ND mg/kg
Analytical Method: SW-846
Pace Analytical Services - Charlotte
97.3
0.20 1 02/17/22 11:26 02/24/22 10:37 7439-97-6 M 1, R 1
0.10 1
REPORT OF LABORATORY ANALYSIS
02/23/22 14:40 N2
Date: 04/20/2022 11:58 AM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 5 of 29

aceAnalytical
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Pace Analytical Services, LLC
6701 Conference Drive
Raleigh, NC 27607
[phone]
QUALITY CONTROL DATA
Project: MONTHLY LL HG-Revised Report
Pace Project No.: 92586942
QC Batch: 678422
QC Batch Method: EPA 1631E
Associated Lab Samples: 92586942001, 92586942002,
92586942008
Analysis Method:
Analysis Description:
Laboratory:
EPA1631E
1631E Mercury,Low Level
Pace Analytical Services - Asheville
92586942003,92586942004,92586942005,92586942006,92586942007,
METHOD BLANK: 3550273 Matrix: Water
Associated Lab Samples: 92586942001, 92586942002, 92586942003, 92586942004, 92586942005, 92586942006, 92586942007,
92586942008
Parameter Units
Blank
Result
Reporting
Limit Analyzed Qualifiers
Mercury ng/L
ND 0.50 02/17/22 09:33
METHOD BLANK: 3550274 Matrix: Water
Associated Lab Samples: 92586942001, 92586942002, 92586942003, 92586942004, 92586942005, 92586942006, 92586942007,
92586942008
Parameter Units
Blank
Result
Reporting
Limit Analyzed Qualifiers
Mercury ng/L
ND 0.50 02/17/2210:12
METHOD BLANK: 3550275 Matrix: Water
Associated Lab Samples: 92586942001, 92586942002, 92586942003, 92586942004, 92586942005, 92586942006, 92586942007,
92586942008
Parameter Units
Blank
Result
Reporting
Limit Analyzed Qualifiers
Mercury ng/L
ND 0.50 02/17/2210:20
LABORATORY CONTROL SAMPLE: 3550276
Parameter Units
Spike
Conc.
LCS
Result
LCS
% Rec
% Rec
Limits Qualifiers
Mercury ng/L
5 4.86
97 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 3550277 3550278
MS MSD
92586942001 Spike Spike MS
Parameter Units Result Conc. Conc. Result
MSD
Result
MS MSD % Rec
% Rec % Rec Limits RPD
Qual
Mercury
ng/L 9.64 25 25 30.0
30.0 81 81 71-125
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
0
Date: 04/20/2022 11:58 AM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 6 of 29

aceAnalytical
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Pace Analytical Services, LLC
6701 Conference Drive
Raleigh, NC 27607
[phone]
QUALITY CONTROL DATA
Project: MONTHLY LL HG-Revised Report
Pace Project No.: 92586942
QC Batch: 678654 Analysis Method: EPA 7471 B
QC Batch Method: EPA 7471 B Analysis Description: 7471 Mercury
Laboratory: Pace Analytical Services - Asheville
Associated Lab Samples: 92586942009
METHOD BLANK: 3551380 Matrix: Solid
Associated Lab Samples: 92586942009
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Mercury mg/kg ND 0.0036 02/24/22 10:33
LABORATORY CONTROL SAMPLE: 3551381
Spike LCS LCS % Rec
Parameter Units Conc. Result % Rec Limits
Qualifiers
Mercury mg/kg 0.05 0.042 85 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 3551382 3551383
MS MSD
92586942009 Spike Spike MS MSD MS MSD % Rec
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD Qual
Mercury
mg/kg ND 2.7 2.7 2.0 2.5 66 85 75-125 23 M1,R1
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
Date: 04/20/2022 11:58 AM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 7 of 29

aceAnalytical
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Pace Analytical Services, LLC
6701 Conference Drive
Raleigh, NC 27607
[phone]
QUALITY CONTROL DATA
Project: MONTHLY LL HG-Revised Report
Pace Project No.: 92586942
QC Batch: 680363 Analysis Method: SW-846
QC Batch Method: SW-846 Analysis Description: Dry Weight/Percent Moisture
Laboratory: Pace Analytical Services - Charlotte
Associated Lab Samples: 92586942009
SAMPLE DUPLICATE: 3559585
92586942009 Dup
Parameter Units Result Result RPD Qualifiers
Percent Moisture
Ok
97.3 97.2 0 N2
SAMPLE DUPLICATE: 3559586
92589362003 Dup
Parameter Units Result Result RPD Qualifiers
Percent Moisture
0/0
88.4 87.7 1 N2
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
Date: 04/20/2022 11:58 AM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 8 of 29

aceAnalytical
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Pace Analytical Services, LLC
6701 Conference Drive
Raleigh, NC 27607
[phone]
QUALIFIERS
Project: MONTHLY LL HG-Revised Report
Pace Project No.: 92586942
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as
"Total" may vary slightly from the sum of the reported component parameters.
ANALYTE QUALIFIERS
BC The same analyte was detected in an associated blank at a concentration above 1/2 the reporting limit but below the
laboratory reporting limit.
CO Result confirmed by second analysis.
M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
N2 The lab does not hold NELAC/TNI accreditation for this parameter but other accreditations/certifications may apply. A
complete list of accreditations/certifications is available upon request.
R1 RPD value was outside control limits.
REPORT OF LABORATORY ANALYSIS
Date: 04/20/2022 11:58 AM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 9 of 29

aceAnalytical
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Pace Analytical Services, LLC
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[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: MONTHLY LL HG-Revised Report
Pace Project No.: 92586942
Analytical
Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch
92586942001 SD PLANT INFLUENT EPA 1631E 678422 EPA 1631E 678640
92586942002 SD PLANT INFLUENT BLANK EPA 1631E 678422 EPA 1631E 678640
92586942003 SD PLANT EFFLUENT EPA 1631E 678422 EPA 1631E 678640
92586942004 SD PLANT EFFLUENT BLANK EPA 1631E 678422 EPA 1631E 678640
92586942005 SD PRIMARY EFFLUENT EPA 1631E 678422 EPA 1631E 678640
92586942006 SD PRIMARY EFFLUENT BLANK EPA 1631E 678422 EPA 1631E 678640
92586942007 SD AERATION BASIN EPA 1631E 678422 EPA 1631E 678640
92586942008 SD AERATION BASIN BLANK EPA 1631E 678422 EPA 1631E 678640
92586942009 SD SLUDGE TO DIGESTOR EPA 7471 B 678654 EPA 7471 B 679077
92586942009 SD SLUDGE TO DIGESTOR SW-846 680363
REPORT OF LABORATORY ANALYSIS
Date: 04/20/2022 11:58 AM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 10 of 29

CBAfk71yi1C f«
Document Name:
Sample Condition Upon Receipt (SCUR)
Document Revised: November 15, 2021
Page 1 of 2 .
Document No.:
F-CAR-CS-033-Rev.08
Issuing Authority:
Pace Carolinas Quality Office
Laboratory receiving samples:
Asheville ❑ Eden❑ Greenwood ❑ Huntersvllle ❑ Raleigh Mechanicsville❑ Atlantan Kernersv11lp1-1
Sample Condition
Upon Receipt
Courier:
❑ Commercial
Custody Seal Present?
Packing Material:
Thermometer:
❑ IR Gun ID:
Cooler Temp:
Client Name:
Sou-/h Ad ha64
❑Fed Ex ❑UPS CUSPS
Pace ❑Other:
❑Yes ,No Seals Intact? 0Yes
['Bubble Wrap .-`Bubble Bags
1— cri7
Correction Factor:
L
& Add/Subtract (•C)
Cooler Temp Corrected (Jet
Type of lee:
0. C�
�Vt'Lf
❑Client
,.,„„WO11 us 92586942
IIIIIIII IIII IIVII IIIII
Crate/Initials Person Exandning Contents:
Other Biological Tissue frozen?
❑Yes ONO �N/A
❑Blue gone
Temp should be above freezing to 6 C
❑Samples out of temp criteria. Samples on Ice, cooling process
has begun
USDA Regulated Sall ( N/A, water sample)
Did samples originate in a quarantine zone within the United States: CA; NY, or SC (check maps)? Did samples DrlRinate from a foreign source (internationally,
❑Yes ❑ND IndudingHawaltand-Puert6RIca)?DYes ❑
_
Comments/Discrepancy:
Chain of Custody Present? ONo ❑N/A 1.
Samples Arrived within Hold Time? es DOD❑N/A 2.
Short Hold Time Analysis (<72 hr.)? (Yes /L-"`" ❑N/A 3.
Rush Turn Around Time Requested? ❑Yes ❑N/A 4.
Sufficient Volume? ,[iris ❑ND ON/A S.
Correct Containers Used? ❑No ❑N/A 6.
-Pace Containers Used? s QNo ❑N/A
Containers Intact? Y ❑No ❑N/A 7.
Dissolved analysis: Samples Field Filtered? -4es QND i/8. A
Sample Labels Match COC? , n / Yes ❑No ❑N/A 9.
-Indudes Date/Tlme/1D/Analysis Matrix:
�V
Headspace In VOA Vials (>5-6mm)? ]Yes l Na 10.
Trip Blank Present? ©Yes No N/A 11.
Trip Blank Custody Seals Present? E Yes ONO liAJKA
COMMENTS/SAMPLE DISCREPANCY
Field Data Required? ❑Yes ❑No
Lot ID of split containers:
CLIENT NOTIFICATION/RESOLUTION
Person contacted:
Project Manager SCURF Review:
Project Manager SRF Review:
Date/Time:
Date:
Date:
Page 11 of 29

Document Name:
Sample Conditlon Upon Receipt (SOUR)
Document No.:
F-CAR-CS-O33-Rev,08
*Check mark top half of box if pH and/or dechlorination is
verified and within the acceptance range for preservation
Document Revised: November 15, 2021
Page2of2
Issuing Authority:
Pace Carolinas Quality OfflCe
Project + W4 : 92586942
samples. PM: MWB Due Date: 02/22/22
Exceptions: VOA, Conform, TOC, Oil and Grease, DRO/8015 (water] DOC, LLHg CLIENT: 91-S, Durham
**Bottom half of box is to list number of bottles
d
_
1 BP4U-125 mL Plastic Unpreserved (N/A) (Cl-)
11P3U-250 mL Plastic Unpreserved (N/A)
z
la
,J
p
7
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m
BP1U-1 liter Plastic Unpreserved (N/A)
1 BP45-125 mi Plastic H2504 (pH < 2) (Cl-)
1 B• P3N-250 mL plastic HNO3 (pH <2)
1 BP4Z-1.25 mL Plastic ZN Acetate & NaOH (>9)
1 BP48-125 mL Plastic NaOH (pH >12) (C1-)
- WGFU-Wide-mouthed Glass jar Unpreserved
1 AG1U-1 titer Amber Unpreserved (N/A) (a-)
V
2
nJ
1
AG3U-250 mL Amber Unpreserved (N/A) (CI-)
A• G1S-1 liter Amber H25O4 (pH < 2)
1 AG .5-250 mL Amber H25O4 (pH < 2)
3
V
V
eyy
x7
�
DG9H- 0 mL VOA FEU (N/A)
VG9P-40 mL VOA Na252O3 (N/A)
V• G9U-40 mL VOA Unpreserved (N/A)
IDG9P-41) mL VOA H3PO4 (N/A}
E.
vt
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1
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SPST-125 miSterile Plasdc (N/A— lab) 1
SP2T-250 mL Sterile Plastic (N/A— lab)
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52'
N
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AGOU-100 mL Amber Unpreserved vials (N/A)
VSGU-20 mL Scintillation vials (N/A)
AG9U-4O mL Amber Unpreserved vials (N/A)
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pH Adjustment Log for Preserved Samples
Sample ID
Type of Preservative
pH upon receipt
Date preservation adjusted
Time preservation
adjusted
Amount of Preservative
added
Lot#
Note: Whenever there is a dIscrepancy affecting North Caroline compliance samples, a copy of thls form will be sent to the North Carolina DEHNEt Certification office (le.
Out of hold, incorrect preservative, out of temp, incorrect. containers.
Page 12 of 29

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Page 13 of 29

(LeAnaIYticaI
Report of Analysis
Pace Analytical Services, LLC
9800 Kincey Avenue
Suite 100
Huntersville, NC 28078
Attention: Matthew Brainard
Project Name: Monthly LLHg
Project Number: 92586942
Lot Number:XD01083
Date Completed:04/07/2022
Project Manager:Blaire M. Gagne
04/08/2022 10:10 AM
Approved and released by:
Client Services Tech 1: Jenna S. Holliday
ANSI National Accreditation Board
ACCREDITED
TESTING LABORATORY
The electronic signature above is the equivalent of a handwritten signature.
This report shall not be reproduced, except in its entirety, without the written approval of Pace Analytical Services, LLC.
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172
Tel: [phone] Fax: [phone] www.pacelabs.com
Page 14 of 29
Page 1 of 16

PACE ANALYTICAL SERVICES, LLC
SC DHEC No: 32010001 NELAC No: E87653
NC DENR No: 329 NC Field Parameters No: 5639
Case Narrative
Pace Analytical Services, LLC
Lot Number: XD01083
This Report of Analysis contains the analytical result(s) for the sample(s) listed on the Sample Summary
following this Case Narrative. The sample receiving date is documented in the header information
associated with each sample.
All results listed in this report relate only to the samples that are contained within this report. Where
sampling is conducted by the client, results relate to the accuracy of the information provided, and as the
samples are received.
Sample receipt, sample analysis, and data review have been performed in accordance with the most
current approved The NELAC Institute (TNI) standards, the Pace Analytical Services, LLC ("Pace")
Laboratory Quality Manual, standard operating procedures (SOPs), and Pace policies. Any exceptions to
the TNI standards, the Laboratory Quality Manual, SOPs or policies are qualified on the results page or
discussed below.
Pace is a TNI accredited laboratory; however, the following analyses are currently not listed on our TNI
scope of accreditation: Drinking Water: VOC (excluding BTEX, MTBE, Naphthalene, & 1,2-
dichloroethane) EPA 524.2, E. coli and Total coliforms SM 9223 B-2004, Solid Chemical Material: TOC
Walkley-Black, Biological Tissue: All, Non -Potable Water: SGT-HEM EPA 1664B, Silica EPA 200.7,
Boron, Calcium, Silicon, Strontium EPA 200.8, Bicarbonate, Carbonate, and Hydroxide Alkalinity SM 2320
B-2011, SM 9221 C E-2006 & SM 9222D-2006, Strontium SW-846 6010D, VOC SM 6200 B-2011, Fecal
Coliform Colilert-18.
If you have any questions regarding this report, please contact the Pace Project Manager listed on the
cover page.
Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 15 of 29
Page 2 of 16

PACE ANALYTICAL SERVICES, LLC
Sample Summary
Pace Analytical Services, LLC
Lot Number: XD01083
Project Name: Monthly LLHg
Project Number: 92586942
Sample Number Sample ID
Matrix
Date Sampled Date Received
001 SD PLANT INFLUENT
002 SD PLANT INFLUENT BLANK
003 SD PLANT EFFLUENT
004 SD PLANT EFFLUENT BLANK
Aqueous
Aqueous
Aqueous
Aqueous
02/07/2022 1440
02/07/2022 1445
02/07/2022 1450
02/07/2022 1455
04/01/2022
04/01/2022
04/01/2022
04/01/2022
(4 samples)
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 3 of 16
Page 16 of 29

PACE ANALYTICAL SERVICES, LLC
Detection Summary
Pace Analytical Services, LLC
Lot Number: XD01083
Project Name: Monthly LLHg
Project Number: 92586942
Sample Sample ID Matrix Parameter Method Result Q Units Page
001 SD PLANT INFLUENT
003 SD PLANT EFFLUENT
Aqueous Mercury (CVAFS) 1631E 21.9 H ng/L 5
Aqueous Mercury (CVAFS) 1631E 0.506 H ng/L 7
(2 detections)
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 4 of 16
Page 17 of 29

Mercury (CVAFS)
Client: Pace Analytical Services, LLC
Description: SD PLANT INFLUENT
Date Sampled:02/07/2022 1440
Date Received:04/01/2022
Project Name: Monthly LLHg
Project Number: 92586942
Laboratory ID:XD01083-001
Matrix: Aqueous
Run Prep Method
1
Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1631E 10 04/06/2022 0638 JAB2 04/05/2022 0921 37086
Parameter
CAS Analytical
Number Method Result Q LOQ
Units Run
Mercury (CVAFS)
7439-97-6
1631E 21.9 H
5.00
ng/L 1
LOQ = Limit of Quantitation
ND = Not detected at or above the LOQ
H = Out of holding time
B = Detected in the method blank
N = Recovery is out of criteria
W = Reported on wet weight basis
E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%
Q = Surrogate failure
L = LCS/LCSD failure
S = MS/MSD failure
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 18 of 29
Page 5 of 16

Mercury (CVAFS)
Client: Pace Analytical Services, LLC
Description: SD PLANT INFLUENT BLANK
Date Sampled:02/07/2022 1445
Date Received:04/01/2022
Project Name: Monthly LLHg
Project Number: 92586942
Laboratory ID:XD01083-002
Matrix: Aqueous
Run Prep Method
1
Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1631E 1 04/06/2022 0833 JAB2 04/05/2022 0921 37086
Parameter
CAS Analytical
Number Method Result Q LOQ
Units Run
Mercury (CVAFS)
7439-97-6
1631E ND H 0.500 ng/L 1
LOQ = Limit of Quantitation
ND = Not detected at or above the LOQ
H = Out of holding time
B = Detected in the method blank
N = Recovery is out of criteria
W = Reported on wet weight basis
E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%
Q = Surrogate failure
L = LCS/LCSD failure
S = MS/MSD failure
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 19 of 29
Page 6 of 16

Mercury (CVAFS)
Client: Pace Analytical Services, LLC
Description: SD PLANT EFFLUENT
Date Sampled:02/07/2022 1450
Date Received:04/01/2022
Project Name: Monthly LLHg
Project Number: 92586942
Laboratory ID:XD01083-003
Matrix: Aqueous
Run Prep Method
1
Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1631E 1 04/06/2022 0928 JAB2 04/05/2022 0921 37086
Parameter
CAS Analytical
Number Method Result Q LOQ
Units Run
Mercury (CVAFS)
7439-97-6
1631E 0.506 H 0.500 ng/L 1
LOQ = Limit of Quantitation
ND = Not detected at or above the LOQ
H = Out of holding time
B = Detected in the method blank
N = Recovery is out of criteria
W = Reported on wet weight basis
E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%
Q = Surrogate failure
L = LCS/LCSD failure
S = MS/MSD failure
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 20 of 29
Page 7 of 16

Mercury (CVAFS)
Client: Pace Analytical Services, LLC
Description: SD PLANT EFFLUENT BLANK
Date Sampled:02/07/2022 1455
Date Received:04/01/2022
Project Name: Monthly LLHg
Project Number: 92586942
Laboratory ID:XD01083-004
Matrix: Aqueous
Run Prep Method
1
Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1631E 1 04/06/2022 0838 JAB2 04/05/2022 0921 37086
Parameter
CAS Analytical
Number Method Result Q LOQ
Units Run
Mercury (CVAFS)
7439-97-6
1631E ND H 0.500 ng/L 1
LOQ = Limit of Quantitation
ND = Not detected at or above the LOQ
H = Out of holding time
B = Detected in the method blank
N = Recovery is out of criteria
W = Reported on wet weight basis
E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%
Q = Surrogate failure
L = LCS/LCSD failure
S = MS/MSD failure
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 21 of 29
Page 8 of 16

QC Summary
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: XD01083
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 9 of 16
Page 22 of 29

Mercury (CVAFS) - MB
Sample ID: XQ37086-001
Batch: 37086
Analytical Method: 1631E
Matrix: Aqueous
Prep Method:
Prep Date: 04/05/2022 0921
Parameter Result Q Dil LOQ Units Analysis Date
Mercury (CVAFS) ND 1 0.500 ng/L 04/06/2022 0621
LOQ = Limit of Quantitation ND = Not detected at or above the LOQ
= RSD is out of criteria
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: XD01083
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 23 of 29
Page 10 of 16

Mercury (CVAFS) - LCS
Sample ID: XQ37086-002
Batch:37086
Analytical Method: 1631E
Matrix: Aqueous
Prep Method:
Prep Date: 04/05/2022 0921
Parameter
Spike
Amount Result
(ng/L) (ng/L) Q Dil
% Rec
%Rec
Limit Analysis Date
Mercury (CVAFS)
5.00 4.75 1
95 75-125 04/06/2022 0632
LOQ = Limit of Quantitation ND = Not detected at or above the LOQ
= RSD is out of criteria
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: XD01083
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 24 of 29
Page 11 of 16

Mercury (CVAFS) - MS
Sample ID: XD01083-003MS
Batch:37086
Analytical Method: 1631E
Matrix: Aqueous
Prep Method:
Prep Date: 04/05/2022 0921
Parameter
Sample Spike
Amount Amount Result %Rec
(ng/L) (ng/L) (ng/L) Q Dil % Rec Limit Analysis Date
Mercury (CVAFS)
0.506 5.00 5.03 1 90 71-125 04/06/2022 0933
LOQ = Limit of Quantitation ND = Not detected at or above the LOQ
= RSD is out of criteria
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: XD01083
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 25 of 29
Page 12 of 16

Mercury (CVAFS) - MSD
Sample ID: XD01083-003MD
Batch:37086
Analytical Method: 1631E
Matrix: Aqueous
Prep Method:
Prep Date: 04/05/2022 0921
Parameter
Sample Spike
Amount Amount Result %Rec % RPD
(ng/L) (ng/L) (ng/L) Q Dil % Rec % RPD Limit Limit Analysis Date
Mercury (CVAFS)
0.506 5.00 5.10 1 92 1.4 71-125 24 04/06/2022 0939
LOQ = Limit of Quantitation ND = Not detected at or above the LOQ
= RSD is out of criteria
N = Recovery is out of criteria
P = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: XD01083
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 26 of 29
Page 13 of 16

Chain of Custody
and
Miscellaneous Documents
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 14 of 16
Page 27 of 29

PACE ANALYTICAL SERVICES, LLC
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Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 15 of 16
Page 28 of 29

PACE ANALYTICAL SERVICES, LLC
CEent: f
Mari ofrccaipt: i?aiee
L ] Yes r No ] , Were en3t.d Seals present cc] the cooler?
Yc=' ■ Ni 2. If' rtilstody seals were pieseast, were they intact and unbroken?
pH Snip ED: KA Chlorine Strip ID; NA Tested t NA
Original teunpertrture upon reed',' / Derived (Correc t4_d) temperotn a upon rcrcipt %Solid Snap -Cup 1U; NA
12.9 1 ] 8.5 D,c Nti "Nlr 'C NA J. FiA ",c VA "NA nc
ethod:r11-011peraturc Blank 171+4ega=rsl ]3trtt[es iF&c3un ID, $ IR Gun Correction °i;
algid ofcyolxnt:�Q Wet ]_e 0 [a Pricks ❑ Uri ]Co ldottc —
3. It temperature of any caolar ex
Lot 4: }:.'1111083
Revised19)29/2erbp
P ge1of2
V v��
Yet
Ycc
❑1*dA P[a; was No-ificxt b• .
�' }.honeEri-A
o ❑NA M. Is the commercial courier's p
�--
I No
L] No
Lei
J' t.s
I Yes
LTtin
Yet
Yea;
IDNJ
No
l 6.4` , was Project Manager 'Ratified?
mail face -to -[ace (circle' one).
IS. Were sample !Da listed can the COC?
7. Were sarnp]e 1]]s ]isced on WI sample !Dom:nen
S. Was cofieotioc date & time listed an fhe COO?
9- Was collection dale e . rime limed Oil ]] sample cout^airia ?
1.10-
Did all avnlainer Bubb[ ittfnrrnattan OD, date, tim) a ee wilt the COC
I. Were rests to be pc7dori i d liked on the COC?
in slip attached to this Farm?
S- Wage proper custody procedures (re lianris]reiVreceived) followud.?
12. Dlcf ail sail Thus arrive in the pmper cantaincEs for Es,rh test and`or u_ good occditioa
('..rnbroken, lid: an, ei r,) i'
L Nu
Ye$
Yes
❑ Yes
13- Was Islcqua.e sample 'volume available.?
No 14, Were all sampi ti received within '6 the holding tibia { r 411 1l; ur5, whi:elleaer comes Firs:?
15.. Wcra arty s.mp]es co i aiue:s missin • rexccss (circle ow) samples Not listed on CDC`
'., . For VOA and RSK-1 75 salnp]e.3, were bubbles present>`SeCi-size„ (1/4"rr 6min in diatttetjr)
in any of the VOA vials?
❑ Ytia Q 'o NA l 7. R'q,a all DROirneta.klnutrient samples received. at a nl I of c 2?
V.,. YI TNo d NA 18. Weu all cyanide samples received at a N > 12 and su laic samples received ai, a pl I > 9?
❑ Yes, ❑ No ]NA (. Welt All applicable NHS+ C.NICynntdefpheno1/62S, 1608.3 (< O-5ani, ) samples ree of
esidu al chlorine?
LJ No
Samples Receipt Cherkrr_st {SRC) (rerLoolat-151
fss!iincAtAFiorfty, Pau? ENV WCOL
Sample Receipt Checklist (SRC)
Cooler Ir.spected by/date: R-NR { C4f010 2.2
iertt LIPS
PedPN. Plher
❑N°
Me NAIL
❑ Yes D. EJN
1_0 Yes J NoJ
Sarnple Preservation
A
rtA
Sal °Lp'` s) Were received ircorrcctJ ntcrved and were adjusted according[
in saurp_c receiving with NA nil of -circle one: H2SO4, HTf03. }ICJ, NaOIN'asing SR lk NA �_ y
ITitne or prnserualiara � 1f more titan one preservative is r.ccd L pfease rrcr.X in the comments below.
20. Were anent rer•,I;trl:s+requessts (J-p- ryueateti a]ilut]any M Th1SD deg ;gnu liotts, etc,..)
eurrccI!y trnnsc,ibetl float 1 he COC irrfo the cornmeal. sccrian in LIMS?
21, Wee die nuntber listed on the col Itaina i abelY [f yes, Quote #
(Must be e4mpJeoed for any sari pfe(s) incorrectly preserved 0r w'th ]r ithpare.)
Samples)'
wrrc received with bubbles >6 miff ii diameter,
anlples(s) xA received with TRC: {).5 I1 g/L (IrJ: i9 is nn) and were
adjutired acccirdingfy insample rcceiving with 5ediitm thia3u]Ctt[c tNa.2S2O3)wilh Shealy Ili: t
IS] bsrcode labels apptipd by: [CDR'U
{:attments:
Date; ff4101' 2
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 16 of 16
Page 29 of 29