NCG020330_2023 DMR_20240119 (6)

Pace Analytical Services,LLC
ace. 9800 Kincey Ave. Suite 100
Huntersville,NC 28078
[phone]
October 20, 2023
Jennifer Cassada
Environmental Consulting & Technology
7208 Falls of Neuse Road
Suite 102
Raleigh, NC 27615
RE: Project: SW2023
Pace Project No.: 92693319
Dear Jennifer Cassada:
Enclosed are the analytical results for sample(s)received by the laboratory on October 13, 2023. The results relate only to
the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual,where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services-Asheville
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Tyriek Hooks
[e-mail]
704-977-0947
Project Manager
Enclosures
4/0„: 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 12

Pace Analytical Services,LLC
ace. 9800 Kincey Ave. Suite 100
Huntersville,NC 28078
[phone]
CERTIFICATIONS
Project: SW2023
Pace Project No.: 92693319
Pace Analytical Services Asheville
2225 Riverside Drive,Asheville,NC 28804 South Carolina Laboratory ID:99030
Florida/NELAP Certification#: E87648 South Carolina Certification#:99030001
North Carolina Drinking Water Certification#:37712 VirginiaNELAP Certification#:460222
North Carolina Wastewater Certification#:40
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 12

Pace Analytical Services,LLC
ace. 9800 Kincey Ave. Suite 100
Huntersville,NC 28078
[phone]
SAMPLE ANALYTE COUNT
Project: SW2023
Pace Project No.: 92693319
Analytes
Lab ID Sample ID Method Analysts Reported Laboratory
92693319001 3M 003 SM 2130B-2011 CDC 1 PASI-A
SM 2540D-2015 JMH1 1 PASI-A
SM 2540E-2015 MJP 1 PASI-A
PASI-A=Pace Analytical Services-Asheville
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 12

Pace Analytical Services,LLC
ace. 9800 Kincey Ave. Suite 100
Huntersville,NC 28078
[phone]
ANALYTICAL RESULTS
Project: SW2023
Pace Project No.: 92693319
Sample: 3M 003 Lab ID: 92693319001 Collected: 10/13/23 10:35 Received: 10/13/23 12:40 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
2130B Turbidity Analytical Method:SM 2130B-2011
Pace Analytical Services-Asheville
Turbidity 1.6 NTU 1.0 1 10/14/23 16:28
2540D Total Suspended Solids Analytical Method:SM 2540D-2015
Pace Analytical Services-Asheville
Total Suspended Solids ND mg/L 2.5 1 10/19/23 12:02
2540F Total Settleable Solids Analytical Method:SM 2540E-2015
Pace Analytical Services-Asheville
Total Settleable Solids ND mL/L/hr 0.10 1 10/14/23 16:27
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date: 10/20/2023 09:52 AM without the written consent of Pace Analytical Services,LLC. Page 4 of 12

Pace Analytical Services,LLC
ace. 9800 Kincey Ave. Suite 100
Huntersville,NC 28078
[phone]
QUALITY CONTROL DATA
Project: SW2023
Pace Project No.: 92693319
QC Batch: 806404 Analysis Method: SM 2130E-2011
QC Batch Method: SM 2130E-2011 Analysis Description: 2130E Turbidity
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92693319001
METHOD BLANK: 4175995 Matrix: Water
Associated Lab Samples: 92693319001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Turbidity NTU ND 1.0 10/14/23 16:24
LABORATORY CONTROL SAMPLE: 4175996
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Turbidity NTU 200 201 100 90-110
SAMPLE DUPLICATE: 4175997
92693206001 Dup
Parameter Units Result Result RPD Qualifiers
Turbidity NTU 2.6 2.2 18 D6
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
This report shall not be reproduced,except in full,
Date: 10/20/2023 09:52 AM without the written consent of Pace Analytical Services,LLC. Page 5 of 12

Pace Analytical Services,LLC
ace. 9800 Kincey Ave. Suite 100
Huntersville,NC 28078
[phone]
QUALITY CONTROL DATA
Project: SW2023
Pace Project No.: 92693319
QC Batch: 807517 Analysis Method: SM 2540D-2015
QC Batch Method: SM 2540D-2015 Analysis Description: 2540D Total Suspended Solids
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92693319001
METHOD BLANK: 4181329 Matrix: Water
Associated Lab Samples: 92693319001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Total Suspended Solids mg/L ND 2.5 10/19/23 12:01
LABORATORY CONTROL SAMPLE&LCSD: 4181330 4181615
Spike LCS LCSD LCS LCSD %Rec Max
Parameter Units Conc. Result Result %Rec %Rec Limits RPD RPD Qualifiers
Total Suspended Solids mg/L 250 246 236 98 94 90-110 4 25
SAMPLE DUPLICATE: 4181616
92693816001 Dup
Parameter Units Result Result RPD Qualifiers
Total Suspended Solids mg/L 307 293 5
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
This report shall not be reproduced,except in full,
Date: 10/20/2023 09:52 AM without the written consent of Pace Analytical Services,LLC. Page 6 of 12

Pace Analytical Services,LLC
ace. 9800 Kincey Ave. Suite 100
Huntersville,NC 28078
[phone]
QUALITY CONTROL DATA
Project: SW2023
Pace Project No.: 92693319
QC Batch: 806421 Analysis Method: SM 2540E-2015
QC Batch Method: SM 2540E-2015 Analysis Description: 2540F Total Settable Solids
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92693319001
SAMPLE DUPLICATE: 4176042
92693319001 Dup
Parameter Units Result Result RPD Qualifiers
Total Settleable Solids mL/L/hr ND ND
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
This report shall not be reproduced,except in full,
Date: 10/20/2023 09:52 AM without the written consent of Pace Analytical Services,LLC. Page 7 of 12

Pace Analytical Services,LLC
( ace® 9800 Kincey Ave. Suite 100
Huntersville,NC 28078
[phone]
QUALIFIERS
Project: SW2023
Pace Project No.: 92693319
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.
Pace Analytical is TNI accredited.Contact your Pace PM for the current list of accredited analytes.
TNI-The NELAC Institute.
ANALYTE QUALIFIERS
D6 The precision between the sample and sample duplicate exceeded laboratory control limits.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date: 10/20/2023 09:52 AM without the written consent of Pace Analytical Services,LLC. Page 8 of 12

Pace Analytical Services,LLC
ace. 9800 Kincey Ave. Suite 100
Huntersville,NC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: SW2023
Pace Project No.: 92693319
Analytical
Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch
92693319001 3M 003 SM 2130B-2011 806404
92693319001 3M 003 SM 2540D-2015 807517
92693319001 3M 003 SM 2540E-2015 806421
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date: 10/20/2023 09:52 AM without the written consent of Pace Analytical Services,LLC. Page 9 of 12

DC#_Title: ENV-FRM-HUN1-0083 v01 Sample Condition Upon Receipt
ice‘
/
I ,uva:l.Si3r a'S.
Effective Date:05/12/2022
Laboratory receiving samples: J•
Asheville El Eden❑ Greenwood ❑ Huntersville❑ Raleigh Mechanicsville❑ Atlanta❑ Kernersville❑
Sample Condition Client Name: /
WO#
: 92693319
Upon Receipt pie }g.) \1\\(-9N\u.\-\ ^` eat -
Courier: Pd Ex UP5 ❑USPS Client liii
IIIIIIIIIIIIIIIIC Commercial ace LOthcr: __ 92693319
Custody Seal Present? ❑Yes L 1 o Seals Intact? ❑yesi‘
/// �/Date/Initials Person Examining Contents:/ ''—
Packing Material: ElBubble Wrap ❑Bubble Bags yJ None 0 Other Biological Tlssu rozen? C
Thermometer: /�/` CI Yes ❑No N/A
0 IR Gun ID VJ r .S
l( Type of Ice: LJAJet ❑Blue ❑None
Correction Factor: f�
Cooler
Temp: Add/Subtract VC) Temp should be above freezing to 6°C
❑Samplesout of temp criteria.Samples on ice,cooling process
Cooler Temp Corrected I° /r ( has begun
USDA Regulated Soil( N/A, , ter sample)
Did samples on to Ina arantine zone within the United States:CA,NY,or SC Did sarnplesoriginate from a foreign source(intern ovally,
check maps)?❑Yes No including Hawaii and Puerto Rico)?❑Yes No
Comments/Discrepancy:
Chain of Custody Present? s ❑No 1 NIA 1
Samples Arrived within Hold Time? /2 ❑No ON/A 2.
Short Hold Time Analysis(c72 hr.)? Yes ❑No/J ❑N/A 3.
Rush Turn Around Time Requested? ❑yes ❑N/A 4.
Sufficient Volume? yes ❑No ❑N/A 5.
Correct Containers Used? Xes 0 No ❑N/A 6.
-Pace Containers Used? es 0 No ❑N/A
Containers Intact? s 0 No ❑N/A 7.
Dissolved analysis:Samples Field Filtered? es 0 No 8.
Sample Labels Match COC? ❑No ElN/A 9.
-Includes Date/Time/ID/Analysis Matrix:_ _,_ _
Headspace in VOA Vials(>5-6mm)? 0Yes 0 No A 10.
Trip Blank Present? CI ❑No N/A 11. _
Trip Blank Custody Seals Present? Oyes 0 No N/A •
COMMENTS/SAMPLE DISCREPANCY Field Data Required? ❑Ye No
Lot ID of split containers:
CLIENT NOTIFICATION/RESOLUTION
Person contacted: Date/Time:
Project Manager SCURF Review: Date:
Project Manager SRF Review: Date:
Page 10 of 12
Qualtrax ID:69614 Page 1 of 2

DC#_Title: ENV-FRM-HUN1-0083 vOl_Sample Condition Upon Receipt
f: ace
Effective Date:05/12/2022
*Check mark top half of box if pH and/or dechlorination Is verified and Project wO# : 92693319
within the acceptance range for preservation samples. PM: TIH Due Date: 10/30/23
Exceptions:VOA,Coliform,TOC,Oil and Grease,DRO/8015(water)DOC,LLHg CLIENT: 92-ECT
**bottom half of box is to list number of bottles
***Check Al unpreserved Nitrates for chlorine
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pH Adjustment Log for Preserved Samples
Sample ID Type of Preservative pH upon receipt Date preservation adjusted Time preservation Amount of Preservative Lot It
adjusted added
Note: Whenever there is a discrepancy affecting North Carolina compliance samples,a copy of this form will besent to the North Caroli na DENR Certification Office(i.e.
Out of hold,incorrect preservative,out of temp,incorrect containers.
Page 11 of 12
Qualtrax ID:69614 Page 2 of 2

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Page 12 of 12