NCS000077_Semi-Annual DMR_20190731

DDP Specialty Electronic Materials US9, LLC
2914 Patterson Street
Greensboro, NC 27407
336.547.7273
August 16, 2019
Via UPS
Division of Energy Mineral and Land Resources
Attn: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
4oUPONT►
RECF-I F
AUG 19 2019
DENR-LAND QUALITY
STORMWATER PERMITTING
Re: Transmittal
2019 Semi Annual Stormwater Discharge Outfall Monitoring Report (1-11-2019)
NPDES Permit No. NCS000077
Enclosed please find an original and one copy of the Semi -Annual Stormwater Discharge Monitoring
Report (DMR) for Permit No. NCS000077.
The stormwater event in which the samples were collected occurred on July 31, 2019. All reported
results were all within the permit limits.
The pH values for each of the stormwater outfalls were tested on site on the day of collection and within
the 15 minute time frame specified. The results met the desired benchmark value range and can be
found in the attached stormwater discharge outfall (SDO) monitoring report.
If you have questions or comments regarding this submittal, please contact Richard Kelley at 336-547-
7273.
Sincerely,
Darren Cammin
Site Manager

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August 12, 2019
Richard Kelley
Dow Corning
2914 Patterson St
F?uilding 2
Greensboro, NC 27407
RE: Project: Stormwater
Pace Project No.: 92439511
Dear Richard Kelley:
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Enclosed are the analytical results for sample(s) received by the laboratory on August 01, 2019. The
results relate only to the samples included in this report. Results reported herein conform to the most
current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where
applicable, unless otherwise noted in the body of the report.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Tyriek Hooks
[e-mail]
[phone]
Project Manager
Hnclosures
cc: Allen Hetzer, Dow Corning
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 24

aceAnalytical
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Project: Stormwater
Pace Project No.: 92439511
Pace Analytical Services, LLC
9800 KinceyAve. Suite 100
Nuntersville, NC 28078
[phone]
Asheville Certification IDs
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
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4
SAMPLE SUMMARY
Project: Stormwater
Pace Project No.: 92439511
Lab ID
Sample ID
Matrix
Date Collected
Date Received
92439511001
1 A
Water
07/31/19 16:30
08/01/19 09:30
92439511002
1 B
Water
07131 /19 16:30
08/01/19 09:30
92439611003
2 A
Water
07/31/19 16:30
08/01/19 09:30
92439511004
2 B
Water
07/31/19 16:30
08/01/19 09:30
92439511005
3 A
Water
01/31/19 16:30
08/01/19 09:30
92439511006
3 B
Water
07/31/19 16:30
08/01/19 09:30
92439511007
4 A
Water
07/31/19 16:30
08/01/19 09:30
92439511008
4 B
Water
07/31/19 16:30
08/01/19 09:30
92439511009
5 A
Water
07/31/19 16:30
08/01/19 09:30
92439511010
5 B
Water
07/31/19 16:30
08/01/19 09:30
92439511011
6 A
Water
07/31/19 16:30
08/01/19 09:30
92439511012
6 B
Water
07/31/19 16:30
08/01/19 09:30
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 KinceyAve Suite 100
Huntersville, NC 28078
(104)8/5-9092
Page 3 of 24

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SAMPLE ANALYTE COUNT
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Project:
Paco Project No.:
Stormwater
92439511
Analytes
Lab ID
Sample ID
Method
Analysts
Reported
Laboratory
92439511001
1 A
SM 254OD-2011
MDW
1
PASI-A
92439511002
1 B
TKN+NO3+NO2 Calculation
DMN
1
PASI-A
EPA 351.2 Rev 2.0 1993
MFO
1
PASI-A
EPA 363.2 Rev 2.0 1093
CJH1
1
PA£I A
EPA 365.1 Rev 2.0 1993
MDW
1
PASI-A
92439511003
2 A
SM 2540D-2011
MDW
1
PASI-A
92439511004
2 B
TKN+NO3+NO2 Calculation
DMN
1
PASI-A
EPA 351.2 Rev 2.0 1993
MFO
1
PASI-A
EPA 353.2 Rev 2.0 1993
CJH1
1
PASI-A
EPA 365.1 Rev 2.0 1993
MDW
1
PASI-A
92439511005
3 A
SM 2540D-2011
MDW
1
PASI-A
92439511006
3 B
TKIV+NO3+IV02 Calculation
DMN
I
PASI-A
EPA 351.2 Rev 2.0 1993
MFO
1
PASI-A
EPA 353.2 Rev 2.0 1993
CJH1
1
PASI-A
EPA 365.1 Rev 2.0 1993
MDW
1
PASI-A
92439511007
4 A
SM 2540D-2011
MDW
1
PASI-A
92439511008
4 B
TKN+NO3+NO2 Calculation
DMN
1
PASI-A
EPA 351.2 Rev 2.0 1993
MFO
1
PASI-A
EPA 353.2 Rev 2.0 1993
CJH1
1
PASI-A
EPA 365.1 Rev 2.0 1993
MDW
1
PASI-A
92439511009
5 A
SM 2540D-2011
MDW
1
PASI-A
92439511010
5 B
TKN+NO3+NO2 Calculation
DMN
1
PASI-A
EPA 351.2 Rev 2.0 1993
MFO
1
PASI-A
EPA 353.2 Rev 2.0 1993
CJH1
1
PASI-A
EPA 365.1 Rev 2.0 1993
MDW
1
PASI-A
92439511011
6 A
SM 2540D-2011
MDW
1
PASI-A
92439511012
6 B
TKN+NO3+NO2 Calculation
DMN
1
PASI-A
EPA 351.2 Rev 2.0 1993
MFO
1
PASI-A
EPA 353.2 Rev 2.0 1993
CJH1
1
PASI-A
EPA 365.1 Rev 2.0 1993
MDW
1
PASI-A
REPORT OF LABORATORY ANALYSIS
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aceAnalytical
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ANALYTICAL RESULTS
Pace Analytical Services, LLC
9800 KinceyAve. Suite 100
Huntersville, NC 28078
[phone]
Project: Stormwater
Pace Project No - 92439511
Sample: 1 A Lab ID: 92439511001 Collected: 07/31/19 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Rosults Units Report Limit DF Prepared Analyzed CAS No Qual
2540D Total Suspended Solids Analytical Method: SM 2540D-2011
Total Suspondod Solids ND rng/L 2.6 1 08/06/10 00:20
Date: 08/12/2019 10:23 AM
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.
Page 5 of 24

Pace Analytical Services, LLC
9800Kincey Ave. Suite
aceAnalytical ® Hunte sv lle, C280778
wwwpacelabs.com
(704)875-g093
ANALYTICAL RESULTS
Project: Stormwater
Pace Project No • 92439511
Sample: 1 B Lab ID: 92439511002 Collected: 07/31/19 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
Total Nitrogen Calculation
Analytical Method: TKN+NO3+NO2 Calculation
Total Nitrogen
1 9 mg/L 0 5? 1 08/12/19 10:21
351.2 Total KJeldahl Nitrogen
Analytical Method: EPA 351.2 Rev 2.0 1993 Preparation Method: EPA 351.2 Rev 2.0 '1993
Nitrogen, Kjoldahl, Total
1.2 mg/L 0.50 1 08/00/10 07:06 08/10/19 01:11 7727 37 0
353.2 Nitrogen, N021NO3 pres.
Analytical Method: EPA 353.2 Rev 2.0 1993
Nitrogen, NO2 plus NO3
0.65 mg/L 0.040 1 08/11/19 14:51
365.1 Phosphorus, Total
Analytical Method: EPA 365.1 Rev 2.0 1993 Preparation Method: EPA 365.1 Rev 2.0 1993
Phosphorus
0.089 mg/L 0.050 1 08/07/19 14:40 08/07/19 21:31 7723-14-0
REPORT OF LABORATORY ANALYSIS
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Date: 08/12/2019 10:23 AM without the written consent of Pace Analytical Services, LLC. Page 6 of 24

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ANALYTICAL RESULTS
Project: Stormwater
Pace Project No • 92439.911
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Sample: 2 A Lab ID: 92439511003 Collected: 07/31/19 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qua[
2540D Total Suspended Solids Analytical Method: SM 2540D-2011
Total Suspended Solids 5.7 m0/L 2 .5 1 08/06/19 00.29
Date: 08/12/2019 10:23 AM
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.
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ANALYTICAL RESULTS
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Project: Stormwater
Pace Project No • 92439511
Sample: 2 B Lab ID: 92439511004 Collected: 07/31/19 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
Total Nitrogen Calculation
Analytical Method: TKN+NO3+NO2 Calculation
Total Nitrogen
2.1 mg/L 0.52 1
08/12/19 10?1
351.2 Total Kjeldahl Nitrogen
Analytical Method: EPA 351.2 Rev 2.0 1993 Preparation Method: EPA 351.2 Rev 2.0 1993
Nitrogen, Kjeldahl, Total
1.2 mg/L 050 1
08/09/19 07.05 08/10/19 01:12 7727-37-9
353.2 Nitrogen, NO2/NO3 pres.
Analytical Method: EPA 353.2 Rev 2.0 1993
Nitrogen, NO2 plus NO3
0.94 mg/L 0.040 1
08/11/19 14:55
365.1 Phosphorus, Total
Analytical Method: EPA 365.1 Rev 2.0 1993 Preparation Method: EPA 365.1 Rev 2.0 1993
Phosphorus
0.14 mg/L 0.050 1
08/07/19 14:40 08/07/19 21:33 7723-14-0
REPORT OF LABORATORY ANALYSIS
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Date: 08/12/2019 10:23 AM without the written consent of Pace Analytical Services, LLC. Page 8 of 24

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ANALYTICAL RESULTS
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Project: Stormwater
Pace Project No • W439511
Sample: 3 A Lab ID: 92439511005 Collected: 07/31/19 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
2540D Total Suspended Solids
Total Suspended Solids
Date: 08/12/2019 10:23 AM
Analytical Method: SM 2540D-2011
63.8 mg/1 2.5 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
08/06/19 00-29
Page 9 of 24

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ANALYTICAL RESULTS
Project: Stormwater
Pace Project No.: 92439511
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Sample: 3 B Lab ID: 92439611006 Collected: 07/31/19 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qua]
Total Nitrogen Calculation
Total Nitrogen
351.2 Total Kjeldahl Nitrogen
Nitrogen, Kjeldahl, Total
353.2 Nitrogen, NO2/NO3 pres.
Nitrogen, NO2 plus NO3
365.1 Phosphorus, Total
Phosphorus
Date: 08/12/2019 10:23 AM
Analytical Method: TKN+NO3+NO2 Calculation
1.1 mg/L 0.52 1 08/12/1910:2.1
Analytical Method: ErA 351.2 Rev 2.0 1993 Preparation Method. EPA 351.2 Rev 2.0 1993
0.86 mg/L 0.50 1 08/09/19 07:05 08/10/19 01.13 7727-37-9
Analytical Method: EPA 353.2 Rev 2.0 1993
0.27 mg/L 0.040 1 08/11/1914:56
Analytical Method: EPA 365.1 Rev 2.0 1993 Preparation Method: EPA 365.1 Rev 2.0 1993
ND mg/L 0.050 1 08/07/19 14:40 08/07/19 21:36 7723-14-0
REPORT OF LABORATORY ANALYSIS
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Page 10 of 24

aceAnalj6cal
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ANALYTICAL RESULTS
Project: Stormwater
Paca Proj@ct No.: 92439511
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Sample: 4A Lab ID: 92439511007 Collected: 07/31/19 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
2540D Total Suspended Solids
Total Suspended Solids
Date: 08/12/2019 10:23 AM
Analytical Method: SM 2540D-2011
16.5 m0/1 2 5 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
08/06/19 00-30
Page 11 of 24

Pace Analytical Services, LLC
aceAnalytical ® 9800 KinceyAve. Suite 100
Huntersville, NC 28078
www.pacelabs.com [phone]
ANALYTICAL RESULTS
Project: Stormwater
Pace Project No.: 92439511
Sample: 4 B Lab ID: 92439511008 Collected: 07/31/19 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qua[
Total Nitrogen Calculation
Analytical Method: TKN+NO3+NO2 Calculation
Total Nitrogen
1.2 mg/L 0.52 1 08/12/19 10:21
351.2 Total Ijeldahl Nitrogen
Analytical Method: CPA 351.2 Rev 2.0 1993 Preparation Method: CPA 351.2 Rev 2.0 1993
Nitrogen, Kjeldahl, Total
0.89 m0/t 050 1 08/09/19 07.05 08/10/19 01-14 7727-37-9
353.2 Nitrogen, NO2/NO3 pres.
Analytical Method: EPA 353.2 Rev 2.0 1993
Nitrogen, NO2 plus NO3
0.27 mg/L 0.040 1 08/11/19 14:57
365.1 Phosphorus, Total
Analytical Method: EPA 365.1 Rev 2.0 1993 Preparation Method: EPA 365.1 Rev 2.0 1993
Phosphorus
ND mg/L 0.050 1 08/07/19 14:40 08/07/19 21:37 7723-14-0
REPORT OF LABORATORY ANALYSIS
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Date: 08/12/2019 10:23 AM without the written consent of Pace Analytical Services, LLC. Page 12 of 24

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i
ANALYTICAL RESULTS
Project: Stormwater
Pace Project No.: 92439511
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Sample: 5A Lab ID: 92439511009 Collected: 07/31/19 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
2540D Total Suspended Solids Analytical Method: SM 2540D-2011
Total Suspended Solids 6.2 mg/L 2.6 1 08/06/19 00:30
Date: 08/12/2019 10:23 AM
REPORT OF LABORATORY ANALYSIS
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ANALYTICAL RESULTS
Pace Analytical Services, LLC
9800 KinceyAve. Suite 100
Huntersville, NC 28078
[phone]
Project: Stormwater
Pace Project No.: 92439511
Sample: 5 B Lab ID: 92439511010 Collected: 07/31119 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
Total Nitrogen Calculation
Analytical Method: TKN+NO3+NO2 Calculation
Total Nitrogen
1.4 mg/L 0.52 1 08/12/19 10:21
361.2 Total Kjcldahl Nitrogen
Analytical Method: CPA 351.2 Rev 2.0 1993 Preparation Method: EPA 351.2 Rev 2.0 1993
Nitrogen, Kjeldahl, Total
1.0 mg/L 0.50 1 08/09/19 07:05 08/10/19 01:18 7727-37-9
353.2 Nitrogen, NO2/NO3 pres.
Analytical Method: EPA 353.2 Rev 2.0 1993
Nitrogen, NO2 plus NO3
0.36 mg/L 0.040 1 08/11/19 14:58
365.1 Phosphorus, Total
Analytical Method: EPA 365.1 Rev 2.0 1993 Preparation Method: EPA 365.1 Rev 2.0 1993
Phosphorus
ND mg/L 0.050 1 08/07/19 14:40 08/07/19 21:38 7723-14-0
REPORT OF LABORATORY ANALYSIS
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Date: 08/12/2019 10:23 AM without the written consent of Pace Analytical Services, LLC. Page 14 of 24

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ANALYTICAL RESULTS
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Project: Stormwater
Pace Project No.: 92439511
Sample: 6 A Lab ID: 92439511011 Collected: 07/31/19 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
2540D Total Suspended Solids
total Suspended Solids
Date: 08/12/2019 10:23 AM
Analytical Method: SM 2540D-2011
4.8 mg/L 2.5 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
08/06/19 00:30
Page 15 of 24

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ANALYTICAL RESULTS
Project: Stormwater
Pace Project No.: 92439511
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Sample: 6 B Lab ID: 92439511012 Collected: 07/31/19 16:30 Received: 08/01/19 09:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qua]
Total Nitrogen Calculation
Total Nitrogen
351.2 Total Kjeldahl Nitrogen
Nitrogen, Kjeldahl, Total
353.2 Nitrogen, NO2/NO3 pros.
Nitrogen, NO2 plus NO3
365.1 Phosphorus, Total
Phosphorus
Date: 08/12/2019 10:23 AM
Analytical Method: TKN+NO3+NO2 Calculation
1.5 mg/L 0.52 1
08/12/1910:21
Analytical Method. EPA 351.2 Rev 2.0 1993 Preparation
Methud. EPA 351.2 Rev 2.0 1993
0.93 mg/L 050 1
08/09/19 07 05 08/10/19 01.19 7727-37-9
Analytical Method: EPA 353.2 Rev 2.0 1993
0.56 mg/L 0.040 1
08/11/1914:59
Analytical Method: EPA 365.1 Rev 2.0 1993 Preparation Method: EPA 365.1 Rev 2.0 1993
0.12 mg/L 0.050 1
08/07/19 14:40 08/07/19 21:39 7723-14-0
REPORT OF LABORATORY ANALYSIS
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Page 16 of 24

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QUALITY CONTROL DATA
Pace Analytical Services, LLC
9800 KinceyAve. Suite 100
Huntersville, NC 28078
[phone]
Project: Stormwater
Pace Project No.: 92439511
QC Batch: 490473
Analysis Method: SM 2540D-2011
QC Batch Method: SM 2540D-2011
Analysis Description: 2540D Total Suspended Solids
Associated Lab Samples: 92439511001, 92439511003,
92439511005, 92439511007, 92439511009, 92439511011
METHOD BLANK: 2645971
Matrix: Water
Assocltatod Lab Samples. 92439b I 1 UU 1, 92439b I I UU3, 92439b 11005, 92439b 1 I UU t, 92439b I I UU9, 92439b I I U I I
Blank Reporting
Parameter
Units
Result Limit Analyzed Qualifiers
Total Suspended Solids
mg/L
NO 2.5 08/06/19 00:26
LABORATORY CONTROL SAMPLE:
2645972
Spike LCS LCS % Rec
Parameter
Units
Cone. Result % Rec Limits Qualifiers
Total Suspended Solids
mg/L
250 226 90 90-110
SAMPLE DUPLICATE: 2645976
92439604001 Dup Max
Parameter Units Result Result RPD RPD Qualifiers
Total Suspended Solids mg/L 2220 1820 20 5 D6
SAMPLE DUPLICATE: 2645977
92439604003 Dup Max
Parameter Units Result Result RPD RPD Qualifiers
Total Suspended Solids mg/L 9300 8850 5 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
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QUALITY CONTROL DATA
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Project: Stormwater
Pace Project No.: 92439511
QC Batch: 491288
Analysis Method: EPA 351.2 Rev 2.0 1993
QC Batch Method: EPA 351.2 Rev 2.0 1993
Analysis Description: 351.2 TKN
Associated Lab Samples: 92439511002, 92439511004, 92439511006, 92439511008, 92439511010, 92439511012
METHOD BLANK: 2649896
Matrix: Water
Ab;;oclutod Lab Sulnplr b. 92439b 11002, 92439b 11004, 92439b 11006, 92439b 11008, 92439b 11010, 92439b 11012
Blank Reporting
Parameter Units
Result Limit Analyzed Qualifiers
Nitrogen, Kjeldahl, Total mg/L
ND 0.50 08/10/19 01:04
LABORATORY CONTROL SAMPLE: 2649897
Spike LCS LCS % Rec
Parameter Units
Conc. Result % Rec Limits Qualifiers
Nitrogen, Kjeldahl, Total mg/L
10 9.7 97 90-110
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2649898 2649899
MS MSD
92439088001
Spike Spike MS MSD MS MSD
% Rec Max
Parameter Units Result
Conc. Conc. Result Result % Rec % Rec
Limits RPD RPD Qual
Nitrogen, Kjeldahl, Total mg/L 5.3
10 10 11.8 13.3 64 80
90-110 12 10 M1,R1
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2649900 2649901
MS MSD
92439665001
Spike Spike MS MSD MS MSD
% Rec Max
Parameter Units Result
Conc. Conc. Result Result % Rec % Rec
Limits RPD RPD Qual
Nitrogen, Kjeldahl, Total mg/L 1.3
10 10 8.9 10 76 87
90-110 11 10 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
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QUALITY CONTROL DATA
Project: Stormwater
Pace Project No.: 92439511
QC Batch: 491619 Analysis Method: EPA 353.2 Rev 2.0 1993
QC Batch Method: EPA 353.2 Rev 2.0 1993 Analysis Description: 353.2 Nitrate + Nitrite, preserved
Associated Lab Samples: 92439511002, 92439511004, 92439511006, 92439511008, 92439511010, 92439511012
METHOD BLANK: 2651282 Matrix: Water
A66octal6d Lab Sample&. 92439b 11002, 91439b 11004, 92439b 11006, 92439b 11008, 92439611010, 9Z4:i4h 11012
Blank keporting
Pararneler Units Result Llmlt Analyzed Qualifiers
Nitrogen, NO2 plus NO3 mg/L ND 0.040 08/11/19 14:49
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
LABORATORY CONTROL SAMPLE: 2651283
Spike LCS LCS % Rec
Parameter Units Conc. Result % Rec Limits Qualifiers
Nitrogen, NO2 plus NO3 mg/L 2.5 2.6 103 90-110
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2651284
MS
92439511002 Spike
Parameter Units Result Conc.
Nitrogen, NO2 plus NO3 mg/L 0.65 2.5
2651285
MSD
Spike MS
Conc. Result
2.5 3.1
MSD MS MSD % Rec Max
Result % Rec % Rec Limits RPD RPD Qual
3.1 98 98 90-110 0 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2651286 2651287
MS MSD
92439714002 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Nitrogen, NO2 plus NO3 mg/L 1.1 2.5 2.5 3.6 3.5 98 98 90-110 0 10
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
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QUALITY CONTROL DATA
Project: Stormwater
Pace Project No.: 92439511
QC Batch: 490742 Analysis Method: EPA 305.1 Rev 2.0 1993
QC Batch Method: EPA 365.1 Rev 2.0 1993 Analysis Description: 365.1 Phosphorus, Total
Associated Lab Samples: 92439511002, 92439511004, 92439511006, 92439511008, 92439511010, 92439511012
METHOD BLANK: 2647173 Matrix: Water
Associated Lab Serriplbs. 92439b I IOO2, 92439b 11004, 92439b I I OOb, 92439b1 I008, 924j9b 11010, 92439511012
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Phosphorus mg/L ND 0.050 08/07/19 21:29
Pace Analytical Services, LLC
9800 KinceyAve. Suite 100
Huntersville, NC 28078
[phone]
LABORATORY CONTROL SAMPLE: 2647174
Spike LCS LCS % Rec
Parameter Units Cone. Result % Rec Limits Qualifiers
Phosphorus mg/L 2.5 2.5 102 90-110
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2647175
MS MSD
92439511002 Spike Spike
Parameter Units Result Cone. Cone.
Phosphorus mg/L 0.089 2.5 2.5
2647176
MS MSD MS MSD % Rec Max
Result Result % Rec % Rec Limits RPD RPD Qua[
2.7 2.7 104 105 90-110 0 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2647177 2647178
MS MSD
92439511004 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Cone. Cone. Result Result % Rec % Rec Limits RPD RPD Qual
Phosphorus mg/L 0.14 2.5 2.5 2.7 2.8 104 105 90-110 1 10
Results presented on this page are in the ur its Indicated by lire units column except where an alternate unit is presented to (he right of the result.
REPORT OF LABORATORY ANALYSIS
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Pace Analytical Services, LLC
aceAnalydical 9800 KinceyAve. Suite100
Huntersville, NC 28078078
www.pacelabs.com
[phone]
QUALIFIERS
Project: Stormwater
Pace Project No.: 92439511
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 concetdratlon above the adjusted method detection Illnll and below the adjusted reporting Wnit.
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.
L CS(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 ofAcrolein 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.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI -The NELAC Institute.
LABORATORIES
PAST -A Pace Analytical Services - Asheville
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
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QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: Stormwater
Pace Project No.: 92439511
Pace Analytical Services, LLC
9800 KinceyAve. Suite 100
Huntersville, NC 28078
[phone]
Lab ID
Sample ID
QC Batch Method
QC Batch
Analytical Method
Analytical
Batch
92439511001
1 A
SM 2540D-2011
490473
92439511003
2 A
SM 2540D-2011
490473
92439511005
3 A
SM 2540D-2011
490473
9243951 IUU7
4 A
5M 2,1AUD-2011
49041,1
92439511009
5 A
SM 2540D-2011
490473
92439511011
6 A
SM 2540D-2011
490473
92439511002
1 B
TKN+NO3+NO2
491702
Calculation
92439511004
2 B
TKN+NO3+NO2
491702
Calculation
92439511006
3 B
TKN+NO3+NO2
491702
Calculation
92439511008
4 B
TKN+NO3+NO2
491702
Calculation
92439511010
613
TKN+NO3+NO2
491702
Calculation
92439511012
613
TKN+NO3+NO2
491702
Calculation
92439511002
1 B
EPA 351.2 Rev 2.0 1993
491288
EPA 351.2
Rev 2.0 1993
491554
92439511004
2 B
EPA 351.2 Rev 2.0 1993
491288
EPA 351.2
Rev 2.0 1993
491554
92439611006
3 B
EPA 351.2 Rev 2.0 1993
491288
EPA 351.2
Rev 2.0 1993
491554
92439611008
4 B
EPA 351.2 Rev 2.0 1993
491288
EPA 351.2
Rev 2.0 1993
491554
92439611010
5 B
EPA 351.2 Rev 2.0 1993
491288
EPA 351.2
Rev 2.0 1993
491554
92439511012
6 B
EPA 351.2 Rev 2.0 1993
491288
EPA 351.2
Rev 2.0 1993
491554
92439511002
1 B
EPA 353.2 Rev 2.0 1993
491619
92439511004
2 B
EPA 353.2 Rev 2.0 1993
491619
92439511006
3 B
EPA 353.2 Rev 2.0 1993
491619
92439511008
4 B
EPA 353.2 Rev 2.0 1993
491619
92439511010
5 B
EPA 353.2 Rev 2.0 1993
491619
92439511012
6 B
EPA 353.2 Rev 2.0 1993
491619
92439511002
1 B
EPA 365.1 Rev 2.0 1993
490742
EPA 365.1
Rev 2.0 1993
490995
92439511004
2 B
EPA 365.1 Rev 2.0 1993
490742
EPA 365.1
Rev 2.0 1993
490995
92439511006
3 B
EPA 365.1 Rev 2.0 1993
490742
EPA 365.1
Rev 2.0 1993
490995
92439511008
4 B
EPA 365.1 Rev 2.0 1993
490742
EPA 365.1
Rev 2.0 1993
490995
92439511010
5 B
EPA 365.1 Rev 2.0 1993
490742
EPA 365.1
Rev 2.0 1993
490995
92439511012
6 B
EPA 365.1 Rev 2.0 1993
490742
EPA 365.1
Rev 2.0 1993
490995
Date: 08/12/2019 10:23 AM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 22 of 24

Document Name: Document Revised: February 7, 2018
e Sample Condition Upon Receipt(SCUR) Pa e 1 of 2
Document No.: Issuing Authority:
A»_n..., ne Pace Carolinas Quality Office
laboratory receiving samples: Ralei h Mechanitsville❑
Asheville ❑ Eden❑ Greenwood ❑ Huntersville g
Client Nanie: , Wo : 9243g511
'611-11"6!Ga Project li. l'I V
Courier: ❑Fed Ex ❑UPS ❑U5PS ❑Client II,II'
❑ Commercial ,Q>sace []Other:_ 9Z439511
Custody Seal Present? ❑Yes [-�No Seals intact? ❑Yes No
Date/Initials Person Examining Contents: /
Paiking Material: ❑Bubble Wrap (Bubble Bags None ❑ Other Biological sue Frozen?
❑Yes ' IVo nN/A
(hermorneter. 92TO48 type of Ice: [Ret []Blue ❑None
©R Gun to.
Cooler Temp ('C): J J. Correction Factor: Add/Subtract ('C) 0.0 Temp should be above freezing to 6°C
Cooler Temp Corrected ('C): DSampies out of temp criteria. Samples on ice, Cooling process
hasbegun
USDA Regulated Soil Q19/ , water sample)
Did samples ofigipte! in a quarantine zone within the United States: CA, NY, or SC (check maps)? Did samples originate from a foreign source (internationally,
inriudeeHawaii and Puerto Rico)? [Yes ON.
Chain of Custody Present?
IM'1<e,
(]No
❑N/A
1•
Samples Arrived within Hold Tfine? ..
(�es
[]No
[]NIA
2.
Short Hdid.Time Analysis (<72 hr.)?
❑Yes
No
❑N/A
3.
Rush Turn Around Time Requested?
es
[]No
❑N/A
4.
5•
Sufficient volume? Yes ❑No (]N/A
Correct Containers Used?
Ef;es
[]No
[]N/A
6.
-Pace Containers Used?
Yes
[]No
❑N/A
Containers intact?
Fq—Yes
❑No
❑N/A
7•
Dissolved analysis: Samples Field Filtered? 13Ye:
❑No
N/A
9.
Sample Lapels Match COC?
CDY's
[]No
❑N/A
9.
Matrix:
-Ihciudes Date/Time/ID/Analysis
Headspace in VOA Vials (>5-6mm)?
❑Yes
[3No
N/A
10.
Trip Blank Present?
[]Yes
IDNo
❑NJAA
11.
Trin Wank nicmdvSeals Present?
❑Yes
[]No
N/A
Field Data Required? []Yes []NO
COMMENTS/5AMPLE DISCREPANCY
Lot ID ofiplit containers:
CLIENT NOTIFICATION/RESOLUTION
Person contacted: Date/Time:
Project Manager SCURF Review:-- Date;
Project Manager SRF Review: : Date; rr! L
Page 23 of 24

Document Name: ""^
ndition Upon Receipt(SCUR) Page 1 of 2
Document No.: Issuing Author
„E Pace Carolinas 4uali
*Check mark top half of box if pH and/or dechiorination is
verified and within the acceptance range for preservation
samples.
Exceptions: VOA, Coliform, TOC, Oil and Grease, DRO/8015 (water) DOC, LLHg
"Bottom half of box is to list number of bottle
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Project # W0 : 92439511
PM: TIH Dud Date: 08/12/19
CLIENT: 92-DOW CORN
pH Adjustment Log for Preserved Samples
Sample ID Type of Preservative pH upon receipt Date preservation adjusted Time Preservative Lot N
adjusted added
Amount added
Note: Whenever there is a discrepancy affecting North Carolina s.orapliancc sarnplos, a copy of this form wtlf Eo sent to the North l arollna UEI IiVft Certificatian Offics
Out of hold, incorrect prPservative, out of temp, incorrect containers.
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