NCG060101_2024 DMR_20240402 (2)

Pace Analytical Services,LLC
pace® 205 East Meadow Road-Suite A
Eden,NC 27288
[phone]
March 14, 2024
Charlie Stroman
Dystar
209 Watlington Ind. Drive
Reidsville, NC 27320
RE: Project: STORMWATER
Pace Project No.: 92717167
Dear Charlie Stroman:
Enclosed are the analytical results for sample(s)received by the laboratory on March 06, 2024. 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
• Pace Analytical Services- Eden
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
51,
Sarah Graham for
Ariel S Fitzgerald
[e-mail]
704-977-0945
Project Manager
Enclosures
cc: Whitney Rogers, Dystar
Charlie Stroman
Mark Wiley, Dystar
NC4
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 11

Pace Analytical Services,LLC
pace® 205 East Meadow Road-Suite A
Eden,NC 27288
[phone]
CERTIFICATIONS
Project: STORMWATER
Pace Project No.: 92717167
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
Pace Analytical Services Eden
205 East Meadow Road Suite A, Eden, NC 27288 North Carolina Wastewater Certification#:633
North Carolina Drinking Water Certification#:37738 Virginia/VELAP Certification#:460025
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services,LLC. Page 2 of 11

Pace Analytical Services,LLC
pace® 205 East Meadow Road-Suite A
Eden,NC 27288
[phone]
SAMPLE ANALYTE COUNT
Project: STORMWATER
Pace Project No.: 92717167
Analytes
Lab ID Sample ID Method Analysts Reported Laboratory
92717167001 40306 SM 2540D-2015 VLG 1 PASI-E
SM 5220D-2011 JP1 1 PASI-A
PASI-A=Pace Analytical Services-Asheville
PASI-E=Pace Analytical Services-Eden
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services,LLC. Page 3 of 11

Pace Analytical Services,LLC
pace® 205 East Meadow Road-Suite A
Eden,NC 27288
[phone]
ANALYTICAL RESULTS
Project: STORMWATER
Pace Project No.: 92717167
Sample: 40306 Lab ID: 92717167001 Collected: 03/06/24 09:52 Received: 03/06/24 14:35 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
2540D Total Suspended Solids Analytical Method:SM 2540D-2015
Pace Analytical Services-Eden
Total Suspended Solids 14.9 mg/L 3.1 1 03/07/24 09:23
5220D COD Analytical Method:SM 5220D-2011 Preparation Method:SM 5220D-2011
Pace Analytical Services-Asheville
Chemical Oxygen Demand 71.5 mg/L 25.0 1 03/14/24 02:12 03/14/24 06:26
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:03/14/2024 05:19 PM without the written consent of Pace Analytical Services,LLC. Page 4 of 11

Pace Analytical Services,LLC
pace® 205 East Meadow Road-Suite A
Eden,NC 27288
[phone]
QUALITY CONTROL DATA
Project: STORMWATER
Pace Project No.: 92717167
QC Batch: 837047 Analysis Method: SM 2540D-2015
QC Batch Method: SM 2540D-2015 Analysis Description: 2540D Total Suspended Solids
Laboratory: Pace Analytical Services-Eden
Associated Lab Samples: 92717167001
METHOD BLANK: 4323575 Matrix: Water
Associated Lab Samples: 92717167001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Total Suspended Solids mg/L ND 2.5 03/07/24 09:18
LABORATORY CONTROL SAMPLE: 4323576
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Total Suspended Solids mg/L 250 248 99 90-110
SAMPLE DUPLICATE: 4323577
92716838001 Dup
Parameter Units Result Result RPD Qualifiers
Total Suspended Solids mg/L 458 492 7
SAMPLE DUPLICATE: 4323578
92716873001 Dup
Parameter Units Result Result RPD Qualifiers
Total Suspended Solids mg/L 2990 2160 32 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:03/14/2024 05:19 PM without the written consent of Pace Analytical Services,LLC. Page 5 of 11

Pace Analytical Services,LLC
pace® 205 East Meadow Road-Suite A
Eden,NC 27288
[phone]
QUALITY CONTROL DATA
Project: STORMWATER
Pace Project No.: 92717167
QC Batch: 838853 Analysis Method: SM 5220D-2011
QC Batch Method: SM 5220D-2011 Analysis Description: 5220D COD
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92717167001
METHOD BLANK: 4333271 Matrix: Water
Associated Lab Samples: 92717167001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Chemical Oxygen Demand mg/L ND 25.0 03/14/24 06:21
LABORATORY CONTROL SAMPLE: 4333272
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Chemical Oxygen Demand mg/L 750 765 102 90-110
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4333273 4333274
MS MSD
92716457001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Chemical Oxygen Demand mg/L ND 100 100 125 150 107 132 90-110 19 M1,R1
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4333275 4333276
MS MSD
92717092001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Chemical Oxygen Demand mg/L ND 100 100 127 134 109 116 90-110 5 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
This report shall not be reproduced,except in full,
Date:03/14/2024 05:19 PM without the written consent of Pace Analytical Services,LLC. Page 6 of 11

Pace Analytical Services,LLC
ace® 205 East Meadow Road-Suite A
Eden,NC 27288
[phone]
QUALIFIERS
Project: STORMWATER
Pace Project No.: 92717167
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.
M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample(LCS)recovery.
R1 RPD value was outside control limits.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:03/14/2024 05:19 PM without the written consent of Pace Analytical Services,LLC. Page 7 of 11

Pace Analytical Services,LLC
pace® 205 East Meadow Road-Suite A
Eden,NC 27288
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: STORMWATER
Pace Project No.: 92717167
Analytical
Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch
92717167001 40306 SM 25400-2015 837047
92717167001 40306 SM 5220D-2011 838853 SM 5220D-2011 838876
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:03/14/2024 05:19 PM without the written consent of Pace Analytical Services,LLC. Page 8 of 11

Effective Date 11/29/2023
Laboratory receiving samples:
Asheville❑ EdenD Greenwood❑ HLtntersville❑ RaleighO Mechanicsville❑ Atlanta❑ Kernersville❑
Sample Coruiitiori Client Name:
o�,>;et t v_� Project#: WO# • 92717167
Courier: ❑Fed Ex UPS ❑LISPS ❑Client II
❑Commercial ❑Pace ❑Other: 13111111 .� I} 111
92717167
Custody Seal Present? Oyes ❑No. Seals Intact? Oyes ❑No„,,,.DN/A
Date/initials Person Examining Contents t)
Packing Material: ❑Bubble Wrap ['Bubble Bags None 0 Other Biological Tissue Frozen
Thermometer: Yes No .❑f�/A
_lam Gun ID: [15-109 a Type of Ice: /2:Ket ❑Blue ONone
Correction Factor: •
Cooler Temp: C7 Add/Subtract rc) Temp should be above freezing to 6°C
❑Samples out of temp criteria.Samples on ice,cooling process
Cooler Temp Corrected(°C): 3:5 has begun-
USDA Regulated Soil( N/A,water sample)
Did samples originate in a quarantine zone within the United States:CA,NY,or SC Did samples originate from a foreign source(internationally,
check maps)?Oyes ❑No including Hawaii and Puerto Rico)?Dyes ❑No
Comments/Discrepancy:
Chain of Custody Present? fares ONo ❑N/A 1•
Samples Arrived within Hold Time? QNo ON/A 2.
Short Hold Time Analysis(472 hr.)? �es DNo ❑N/A 3,
Rush.Turn Around:Time Requested?__. DYes . ONo 'A.. .._._4,......
Sufficient Volume? __RYA j]No ON/A 5.
Correct Containers Used? Yes GNU ❑N/A 6.
-Pace Containers Used? ,.®Yes ONO ON/A
Containers Intact? faros ©No ❑N/A 7.
Dissolved analysis:Samples Field Filtered? ©Yes ❑NoA 8.
Sample Labels Match CCC? _BYes ©No ON/A 9.
-Includes Date/lime/ID/Analysis Matrix: l
Headspacein VOA Vials(>5-6rnml? ©yes QNo . N/A ID.
Trip Blank Present? Dyes QNa .-2N/A 11.
Trip Blank Custody Seals Present? ■Yes [QNo s! •
COMMENTS/SAMPLE DISCREPANCY Field Data Required? Oyes ❑No
Lot ID of split containers:
CLIENT NOTIFICATION/RESOLUTION
Person contacted: Date/Time:
Project Manager SCURF Review: Date:
Project Manager SRF Review: Date:
Qualtrax ID:69614 Page 1 of 2
Page 9 of 11

E 1 j
*Check mark top half of box if pH and/or dechiorination is verified and' Projec WO# in 92717167 •
within the acceptance range for preservation samples. PM: ASP Due Date: 03/18/24
Exceptions!VOA,Coltform,TOC,Wand Grease,DRO/5015(water)DOC,Lilt CLIENT: 95-8aehme VI
'*Bottom half of box is to list number of bottles
' Checker unpreserved Nitrates for chlorine
D. 2 N .,{, Q -- 2 �a m 04 m
go ~ N as C m N y V -.. a+ 1 I m y ?
,cm m tr y °7! ? O V z <G o Q ". Y z,
c c cNJE Q O t7 n4 c w y2�/�t 0 uu. ate. 01 = 414
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G @ 5 '� ? N t]. fJ, .,,..
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a b a N n. L i E E Q a p O O w °.j :: a G Zi
1 .r A .F C Q > > > > ei. a w < 13
wl p ig, W e-1 N t q Y + r1 Pi elirA i g el � � w � f 6xrhti t
g g g
y0 �ri + 0 M G91 4o at W tw �. h . qm,. t'1
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pH Adjustment Log for Preserved Samples
•
Sampte 1D Type of Preservative pH upon receipt Date preservation adjusted Time preservation Amount of Preservative Lot
adjusted added
Note:Whenever there Is a discrepancy affecting North Carolina compliance samples,a copy of this form will he sent to the North Carolina DENR Certification Office(i.e.
Out of hold,incorrect preservative,out of temp,Incorrect containers.
Qualtrax ID:69614 Page 2 of 2
Page 10 of 11

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