NCG200513_Benchmark Exceedance Notification_20240723

Peterson, Kathryn S
From: Eplin, Jerry W
Sent: Tuesday, July 23, 2024 4:24 PM
To: Peterson, Kathryn S
Subject: FW: [External] United Scrap Metal NC, LLC - Tier One Response for Copper and Zinc
Exceedances (NCG200513)
Attachments: 7-9-2024 Pace Analytical - Sample Results (92739723).pdf; 8-2-2021 NPDES Outfall
Status - Tier Relief.pdf
Please respond.
Regards,
Jerry W. Eplin, PE
Regional Engineer
North Carolina Department of Environmental Quality
Division of Energy, Mineral, and Land Resources
Office: [phone]
Email: merry.eplina-deg.nc.gov
Physical and Mailing Address:
610 E. Center Ave. Suite 301
Mooresville, NC 28115
-.,a��D.— EQ 5
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
From: Sean Chambers<[e-mail]>
Sent:Tuesday,July 23, 2024 3:37 PM
To: Eplin,Jerry W<[e-mail]>
Cc:John Dergo<[e-mail]>;Adam Wilk<[e-mail]>
Subject: [External] United Scrap Metal NC, LLC-Tier One Response for Copper and Zinc Exceedances (NCG200513)
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Hello Mr. Eplin,
i

Per the requirements of NCG20 General Stormwater Permit(effective June 1, 2024), United Scrap Metal
NC, LLC (NCG200513) is informing the NCDEMNR—Mooresville Regional Office of a Tier One response
due to benchmark exceedances of Copper and Zinc for stormwater samples taken on June 30, 2024.
Attached document titled "7-9-2024 Pace Analytical-Sample Results (92739723)" contains the analytic
results from this sampling event. Below is a summary of the Copper and Zinc results by Outfall:
- Outfall001 Exceedances:
o Copper= 0.0373 mg/L
o Zinc = 0.636 mg/L
- 0utfaIt 002 Exceedances:
o Copper= 0.037 mg/L
o Zinc = 0.632 mg/L
- Outfall003 Exceedances:
o Copper= 0.0375 mg/L
o Zinc = 0.651 mg/L
- 0utfaIt 004 Exceedances:
o Copper= 0.0376 mg/L
o Zinc = 0.649 mg/L
We are proceeding with required Tier One activities to reduce elevated concentrations of copper and
zinc, which will include an audit of the approved Abatement Plan for copper and zinc currently active for
the site.
Please let us know if there are any additional actions we need to take at this time, or if you have any
questions.
Thankyou,
Sean
Sean Chambers
Compliance-SustainabilityAssociate
United Scrap Metal,Inc.
1325 S.Cicero Avenue
Cicero,I L 60804
phone:[phone] x 271
mobile:[phone]
The Award-Winning Leader email: [e-mail]
in Recycling Solutions® website:www.unitedscrap.com
=1

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Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
3

DocuSign Envelope ID:CEE77388-FFDO-4867-809B-0A6381 OC4126
x
ROY COOPER starF,
Governor
F .y
ELIZABETH S.BISER
Secretary
BRIAN WRENN "R
Director NORTH CAROLINA
Environmental Quality
August 2,2021
United Scrap Metal NC, LLC
Attention:John Dergo
9925 Brookford Street
Charlotte, North Carolina 28273
Subject: NPDES Stormwater Permit
Stormwater Permit Certificate of Coverage No. NCG200513
Representative Outfall Status/Tier Monitoring Relief
United Scrap Metal NC, LLC
Mecklenburg County
Dear Mr. Dergo:
The Mooresville Regional Office staff have reviewed your request dated July 28,2021 for a determination that stormwater discharge
outfall(SDO)002 be granted representative outfall status for stormwater outfalls 001 and 002 and that(SDO)003 be granted
representative outfall status for stormwater outfalls 003.and 004. Based on past site inspections and the monitoring data, maps and
the TTS abatement plan provided, we are approving this request and also the request for Tier monitoring relief for copper and zinc. The
Tier relief is granted for the current permit term which expires on May 31,2024. In accordance with 40 CFR§122.21(g)(7),you are
authorized to sample outfalls number 002 and 003 as a representative outfall for the site. This approval is effective with the next
sampling event. We also want to remind you that the permit still requires Qualitative Monitoring be performed at all SDOs, regardless
of representative status.
Please remember that any actions you initiate in response to future benchmark exceedances as directed in the tiered response
provisions of your permit must address all drainage areas represented by SDO 002 and SDO 003 where appropriate.
Please append this letter to your Stormwater Pollution Prevention Plan(SPPP)or permit to document that representative outfall status
and Tier relief has been approved. If changes in drainage areas, structures, processes,storage practices,or other activities occur that
significantly alter the basis of this approval, representative outfall status and/or Tier relief may no longer be valid. You should either
resume sampling at all SDOs,or reapply to this office for representative outfall status based on updated information. If you have any
questions or comments concerning this letter, please contact James Moore at(704)235-2138.
Sincerely,
CDocu5i9ned by,
4
42CFABFC588C459...
Zahid S. Khan, CPM, CPESC, CPSWQ
Regional Engineer
Land Quality Section
Mooresville Regional Office
cc: Laserfiche Stormwater
North Carolina Department of Environmental Quality a Division Energy,Mineral and Land Resources
Mooresville Regional Office 1610 East Center Avenue,Suite 301 I Mooresville,North Carolina 28115
-.w-DE 704-663-1699
r

Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
July 09, 2024
Adam Wilk
United Scrap Metal
1545 S. Cicero Avenue
Cicero, IL 60804
RE: Project: Stormwater Sampling
Pace Project No.: 92739723
Dear Adam Wilk:
Enclosed are the analytical results for sample(s)received by the laboratory on July 02, 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 National-Mt.Juliet
• 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
cc: Compliance, United Scrap Metal, Inc.
John Dergo, United Scrap Metal
�pQ AC,RFO
_�` �a REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
9e- �y without the written consent of Pace Analytical Services,LLC. Page 1 of 16

Pace Analytical Services,LLC
9800 KinceyAve. Suite 100
aceHuntersville,NC 28078
[phone]
CERTIFICATIONS
Project: Stormwater Sampling
Pace Project No.: 92739723
Pace Analytical Services National
12065 Lebanon Road,Mt.Juliet,TN 37122 Nevada Certification#:TN-03-2002-34
Alabama Certification#:40660 New Hampshire Certification#: 2975
Alaska Certification 17-026 New Jersey Certification#:TNO02
Arizona Certification#:AZ0612 New Mexico DW Certification
Arkansas Certification#:88-0469 New York Certification#: 11742
California Certification#:2932 North Carolina Aquatic Toxicity Certification#:41
Canada Certification#: 1461.01 North Carolina Drinking Water Certification#:21704
Colorado Certification#:TN00003 North Carolina Environmental Certificate#:375
Connecticut Certification#: PH-0197 North Dakota Certification#:R-140
DOD Certification:#1461.01 Ohio VAP Certification#:CL0069
EPA#TN00003 Oklahoma Certification#:9915
Florida Certification#: E87487 Oregon Certification#:TN200002
Georgia DW Certification#:923 Pennsylvania Certification#:68-02979
Georgia Certification:NELAP Rhode Island Certification#:LA000356
Idaho Certification#:TN00003 South Carolina Certification#:84004
Illinois Certification#:200008 South Dakota Certification
Indiana Certification#:C-TN-01 Tennessee DW/Chem/Micro Certification#: 2006
Iowa Certification#:364 Texas Mold Certification#:LAB0152
Kansas Certification#:E-10277 Texas Certification#:T 104704245-17-14
Kentucky UST Certification#: 16 USDA Soil Permit#: P330-15-00234
Kentucky Certification#:90010 Utah Certification#:TN00003
Louisiana Certification#:A130792 Virginia Certification#:VT2006
Louisiana DW Certification#:LA180010 Vermont Dept.of Health: ID#VT-2006
Maine Certification#:TN0002 Virginia Certification#:460132
Maryland Certification#:324 Washington Certification#:C847
Massachusetts Certification#:M-TNO03 West Virginia Certification#:233
Michigan Certification#:9958 Wisconsin Certification#:998093910
Minnesota Certification#:047-999-395 Wyoming UST Certification#:via A21-A 2926.01
Mississippi Certification#:TN00003 A21-A-ISO 17025 Certification#: 1461.01
Missouri Certification#:340 A21-A-ISO 17025 Certification#: 1461.02
Montana Certification M CERT0086 AIHA-LAP/LLC EMLAP Certification#:100789
Nebraska Certification#:NE-OS-15-05
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 Virginia/VELAP Certification#:460222
North Carolina Wastewater Certification#:40
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services,LLC. Page 2 of 16

Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
SAMPLE ANALYTE COUNT
Project: Stormwater Sampling
Pace Project No.: 92739723
Analytes
Lab ID Sample ID Method Analysts Reported Laboratory
92739723001 OUTFALL 1 EPA 200.7 Rev 4.4 1994 DBB1 3 PASI-A
EPA 1664E MAB 1 PAN
SM 2540D-2015 MJP 1 PASI-A
SM 5220D-2011 JP1 1 PASI-A
92739723002 OUTFALL 2 EPA 200.7 Rev 4.4 1994 DBB1 3 PASI-A
EPA 1664E MAB 1 PAN
SM 2540D-2015 MJP 1 PASI-A
SM 5220D-2011 JP1 1 PASI-A
92739723003 OUTFALL 3 EPA 200.7 Rev 4.4 1994 DBB1 3 PASI-A
EPA 1664E MAB 1 PAN
SM 2540D-2015 MJP 1 PASI-A
SM 5220D-2011 JP1 1 PASI-A
92739723004 OUTFALL 4 EPA 200.7 Rev 4.4 1994 DBB1 3 PASI-A
EPA 1664E MAB 1 PAN
SM 2540D-2015 MJP 1 PASI-A
SM 5220D-2011 JP1 1 PASI-A
PAN=Pace National-Mt.Juliet
PASI-A=Pace Analytical Services-Asheville
REPORT OF LABORATORY ANALYSIS
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Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
ANALYTICAL RESULTS
Project: Stormwater Sampling
Pace Project No.: 92739723
Sample: OUTFALL 1 Lab ID: 92739723001 Collected: 06/30/24 08:03 Received: 07/02/24 14:50 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Rev 4.4 1994 Preparation Method: EPA 200.7 Rev 4.4 1994
Pace Analytical Services-Asheville
Copper 37.3 ug/L 5.0 1 07/03/2413:05 07/05/2413:53 7440-50-8
Lead ND ug/L 5.0 1 07/03/2413:05 07/05/2413:53 7439-92-1
Zinc 636 ug/L 10.0 1 07/03/2413:05 07/05/2413:53 7440-66-6
Wet Chemistry 1664B Analytical Method: EPA 1664E Preparation Method: 1664B
Pace National-Mt.Juliet
Oil and Grease ND ug/L 5320 1 07/09/24 04:20 07/09/24 07:59
2540D Total Suspended Solids Analytical Method:SM 2540D-2015
Pace Analytical Services-Asheville
Total Suspended Solids ND mg/L 2.5 1 07/03/24 14:08
5220D COD Analytical Method:SM 5220D-2011 Preparation Method:SM 5220D-2011
Pace Analytical Services-Asheville
Chemical Oxygen Demand ND mg/L 25.0 1 07/03/24 01:55 07/03/24 05:16
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:07/09/2024 06:30 PM without the written consent of Pace Analytical Services,LLC. Page 4 of 16

Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
ANALYTICAL RESULTS
Project: Stormwater Sampling
Pace Project No.: 92739723
Sample: OUTFALL 2 Lab ID: 92739723002 Collected: 06/30/24 08:07 Received: 07/02/24 14:50 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Rev 4.4 1994 Preparation Method: EPA 200.7 Rev 4.4 1994
Pace Analytical Services-Asheville
Copper 37.0 ug/L 5.0 1 07/03/2413:05 07/05/2413:56 7440-50-8
Lead ND ug/L 5.0 1 07/03/2413:05 07/05/2413:56 7439-92-1
Zinc 632 ug/L 10.0 1 07/03/2413:05 07/05/2413:56 7440-66-6
Wet Chemistry 1664B Analytical Method: EPA 1664E Preparation Method: 1664B
Pace National-Mt.Juliet
Oil and Grease ND ug/L 5320 1 07/09/24 04:20 07/09/24 07:59
2540D Total Suspended Solids Analytical Method:SM 2540D-2015
Pace Analytical Services-Asheville
Total Suspended Solids ND mg/L 2.6 1 07/03/24 14:08
5220D COD Analytical Method:SM 5220D-2011 Preparation Method:SM 5220D-2011
Pace Analytical Services-Asheville
Chemical Oxygen Demand ND mg/L 25.0 1 07/03/24 01:55 07/03/24 05:17
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:07/09/2024 06:30 PM without the written consent of Pace Analytical Services,LLC. Page 5 of 16

Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
ANALYTICAL RESULTS
Project: Stormwater Sampling
Pace Project No.: 92739723
Sample: OUTFALL 3 Lab ID: 92739723003 Collected: 06/30/24 08:11 Received: 07/02/24 14:50 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Rev 4.4 1994 Preparation Method: EPA 200.7 Rev 4.4 1994
Pace Analytical Services-Asheville
Copper 37.5 ug/L 5.0 1 07/03/2413:05 07/05/2413:59 7440-50-8
Lead ND ug/L 5.0 1 07/03/2413:05 07/05/2413:59 7439-92-1
Zinc 651 ug/L 10.0 1 07/03/2413:05 07/05/2413:59 7440-66-6
Wet Chemistry 1664B Analytical Method: EPA 1664E Preparation Method: 1664B
Pace National-Mt.Juliet
Oil and Grease ND ug/L 5260 1 07/09/24 04:20 07/09/24 07:59
2540D Total Suspended Solids Analytical Method:SM 2540D-2015
Pace Analytical Services-Asheville
Total Suspended Solids ND mg/L 2.6 1 07/03/24 14:08
5220D COD Analytical Method:SM 5220D-2011 Preparation Method:SM 5220D-2011
Pace Analytical Services-Asheville
Chemical Oxygen Demand ND mg/L 25.0 1 07/03/24 01:55 07/03/24 05:17
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:07/09/2024 06:30 PM without the written consent of Pace Analytical Services,LLC. Page 6 of 16

Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
ANALYTICAL RESULTS
Project: Stormwater Sampling
Pace Project No.: 92739723
Sample: OUTFALL 4 Lab ID: 92739723004 Collected: 06/30/24 08:16 Received: 07/02/24 14:50 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Rev 4.4 1994 Preparation Method: EPA 200.7 Rev 4.4 1994
Pace Analytical Services-Asheville
Copper 37.6 ug/L 5.0 1 07/03/2413:05 07/05/2414:01 7440-50-8
Lead ND ug/L 5.0 1 07/03/2413:05 07/05/2414:01 7439-92-1
Zinc 649 ug/L 10.0 1 07/03/2413:05 07/05/2414:01 7440-66-6
Wet Chemistry 1664B Analytical Method: EPA 1664E Preparation Method: 1664B
Pace National-Mt.Juliet
Oil and Grease ND ug/L 5320 1 07/09/24 04:20 07/09/24 07:59
2540D Total Suspended Solids Analytical Method:SM 2540D-2015
Pace Analytical Services-Asheville
Total Suspended Solids ND mg/L 2.6 1 07/03/24 14:08
5220D COD Analytical Method:SM 5220D-2011 Preparation Method:SM 5220D-2011
Pace Analytical Services-Asheville
Chemical Oxygen Demand ND mg/L 25.0 1 07/03/24 01:55 07/03/24 05:17 R1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:07/09/2024 06:30 PM without the written consent of Pace Analytical Services,LLC. Page 7 of 16

Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
QUALITY CONTROL DATA
Project: Stormwater Sampling
Pace Project No.: 92739723
QC Batch: 865955 Analysis Method: EPA 200.7 Rev 4.4 1994
QC Batch Method: EPA 200.7 Rev 4.4 1994 Analysis Description: 200.7 MET
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92739723001,92739723002,92739723003,92739723004
METHOD BLANK: 4463909 Matrix: Water
Associated Lab Samples: 92739723001,92739723002,92739723003,92739723004
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Copper ug/L ND 5.0 07/05/2413:19
Lead ug/L ND 5.0 07/05/2413:19
Zinc ug/L ND 10.0 07/05/2413:19
LABORATORY CONTROL SAMPLE: 4463910
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Copper ug/L 500 505 101 85-115
Lead ug/L 500 495 99 85-115
Zinc ug/L 500 491 98 85-115
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4463911 4463912
MS MSD
92739585001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Copper ug/L ND 500 500 539 534 108 107 70-130 1
Lead ug/L ND 500 500 522 517 104 103 70-130 1
Zinc ug/L 19.1 500 500 538 534 104 103 70-130 1
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4463913 4463914
MS MSD
92739585002 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Copper ug/L 52.7 500 500 641 638 118 117 70-130 1
Lead ug/L ND 500 500 514 512 102 102 70-130 0
Zinc ug/L 2750 500 500 3220 3150 95 81 70-130 2
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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Date:07/09/2024 06:30 PM without the written consent of Pace Analytical Services,LLC. Page 8 of 16

Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
QUALITY CONTROL DATA
Project: Stormwater Sampling
Pace Project No.: 92739723
QC Batch: 2319348 Analysis Method: EPA 1664B
QC Batch Method: 1664A Analysis Description: Wet Chemistry 1664B
Laboratory: Pace National-Mt.Juliet
Associated Lab Samples: 92739723001,92739723002,92739723003,92739723004
METHOD BLANK: R4091415-1 Matrix: Water
Associated Lab Samples: 92739723001,92739723002,92739723003,92739723004
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Oil and Grease ug/L ND 5000 07/09/24 07:59
LABORATORY CONTROL SAMPLE&LCSD: R4091415-2 R4091415-3
Spike LCS LCSD LCS LCSD %Rec Max
Parameter Units Conc. Result Result %Rec %Rec Limits RPD RPD Qualifiers
Oil and Grease ug/L 40000 33100 35700 82.8 89.3 78.0-114 7.56 20
MATRIX SPIKE SAMPLE: R4091415-4
L1753480-01 Spike MS MS %Rec
Parameter Units Result Conc. Result %Rec Limits Qualifiers
Oil and Grease ug/L ND 40000 41900 105 78.0-114
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,
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Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
QUALITY CONTROL DATA
Project: Stormwater Sampling
Pace Project No.: 92739723
QC Batch: 866005 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: 92739723001,92739723002,92739723003,92739723004
METHOD BLANK: 4464290 Matrix: Water
Associated Lab Samples: 92739723001,92739723002,92739723003,92739723004
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Total Suspended Solids mg/L ND 2.5 07/03/24 14:04
LABORATORY CONTROL SAMPLE: 4464291
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Total Suspended Solids mg/L 250 252 101 90-110
SAMPLE DUPLICATE: 4464469
92739049001 Dup
Parameter Units Result Result RPD Qualifiers
Total Suspended Solids mg/L 316 340 7
SAMPLE DUPLICATE: 4464470
92739060002 Dup
Parameter Units Result Result RPD Qualifiers
Total Suspended Solids mg/L 40.7 43.3 6
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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Date:07/09/2024 06:30 PM without the written consent of Pace Analytical Services,LLC. Page 10 of 16

Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
QUALITY CONTROL DATA
Project: Stormwater Sampling
Pace Project No.: 92739723
QC Batch: 865855 Analysis Method: SM 5220D-2011
QC Batch Method: SM 5220D-2011 Analysis Description: 5220D COD
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92739723001,92739723002,92739723003,92739723004
METHOD BLANK: 4463630 Matrix: Water
Associated Lab Samples: 92739723001,92739723002,92739723003,92739723004
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Chemical Oxygen Demand mg/L ND 25.0 07/03/24 05:11
LABORATORY CONTROL SAMPLE: 4463631
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Chemical Oxygen Demand mg/L 750 775 103 90-110
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4463632 4463633
MS MSD
92738821001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Chemical Oxygen Demand mg/L 30.3 100 100 142 142 111 111 90-110 0 M1
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4463634 4463635
MS MSD
92739723004 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 100 100 125 118 109 102 90-110 6 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:07/09/2024 06:30 PM without the written consent of Pace Analytical Services,LLC. Page 11 of 16

Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
QUALIFIERS
Project: Stormwater Sampling
Pace Project No.: 92739723
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.
TN -The NELAC Institute.
ANALYTE QUALIFIERS
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:07/09/2024 06:30 PM without the written consent of Pace Analytical Services,LLC. Page 12 of 16

Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
aceo Huntersville,NC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: Stormwater Sampling
Pace Project No.: 92739723
Analytical
Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch
92739723001 OUTFALL 1 EPA 200.7 Rev 4.4 1994 865955 EPA 200.7 Rev 4.4 1994 866062
92739723002 OUTFALL 2 EPA 200.7 Rev 4.4 1994 865955 EPA 200.7 Rev 4.4 1994 866062
92739723003 OUTFALL 3 EPA 200.7 Rev 4.4 1994 865955 EPA 200.7 Rev 4.4 1994 866062
92739723004 OUTFALL 4 EPA 200.7 Rev 4.4 1994 865955 EPA 200.7 Rev 4.4 1994 866062
92739723001 OUTFALL1 1664E 2319348 EPA 1664B 2319348
92739723002 OUTFALL 2 1664B 2319348 EPA 1664B 2319348
92739723003 OUTFALL 3 1664B 2319348 EPA 1664B 2319348
92739723004 OUTFALL 4 1664B 2319348 EPA 1664B 2319348
92739723001 OUTFALL 1 SM 2540D-2015 866005
92739723002 OUTFALL 2 SM 2540D-2015 866005
92739723003 OUTFALL 3 SM 2540D-2015 866005
92739723004 OUTFALL 4 SM 2540D-2015 866005
92739723001 OUTFALL 1 SM 5220D-2011 865855 SM 5220D-2011 865874
92739723002 OUTFALL 2 SM 5220D-2011 865855 SM 5220D-2011 865874
92739723003 OUTFALL 3 SM 5220D-2011 865855 SM 5220D-2011 865874
92739723004 OUTFALL 4 SM 5220D-2011 865855 SM 5220D-2011 865874
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:07/09/2024 06:30 PM without the written consent of Pace Analytical Services,LLC. Page 13 of 16

DC#_Title: ENV-FRM-HUN1-0083 v05_5ampie Condition Upon Receipt
ace
Effective Date: 05/24/2024
Laboratory receiving samples:
Asheville ❑ Eden❑ Greenwood ❑ Huntersville ❑ Raleigh❑ Mechanicsville❑ Atlanta)-1 KprnprctrillexF,
Sample Condition Client Name: W4## .' 92 139723
� ,i.. ,_ � I i � Project#: I ./
11� ' l i I yl � 4 � !
Courier: ❑Fed Ex ❑UPS ❑USPS ❑Client❑ Commercial ❑Pace ❑Other:
82739723
CustodySeal Present? ?❑Yes ❑No Seals Intact. ❑Yes ❑No ❑N/A
Date/initials Person Examining Contents:'.
Packing Material: [_]Bubble Wrap ❑Bubble Bags ❑None ❑ Other Biological Tissue Frozen?
Thermometer: Dyes ❑No ❑N/A
❑IR Guns ID:
L l v Type of Ice: ❑wet ❑Blue ❑None
Correction Factor:
Cooler Temp: Add/Subtract(°C) t,. Temp should be above freezing to 6°C
Cooler Temp Corrected C: ❑5ampies out of temp criteria.Samples an ice,cooling process
P (° ) 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(inter nationaliy,
(check maps)?❑Yes ❑Nor including Hawaii and Puerto Rico)?❑Yes ❑NO
Comments/Discrepancy:
Chain of Custody Present? ❑Yes ❑No ❑N/A 1.
Samples Arrived within Hold Time? ❑Yes ❑NO ❑N/A 2.
Short Hold Time Analysis 1<72 hr.)? ❑Yes ❑No ❑NJA I
Rush Turn Around Time Requested? ❑yes MNo ❑N/A 4.
5ufficient Volume? ❑Yes ❑Na ❑N/A S.
Correct Containers Used? ❑Yes ONO ❑N/A 6.
-Pace Containers Used? Dyes ❑No ❑N/A
Containers Intact? ❑Yes ❑No ❑N/A 7.
Dissolved analysis:Samples Field Filtered? []Yes ❑No []NIA 8.
Sample Labels Match COC? ❑Yes ❑No ❑N/A g.
Includes Date/Time/ID/Analysis Matrix: ram.
Headspace in VOA Vials(>5-6mm)? ❑Yes [:]No ❑N/A 10,
Trip Blank Present? [-]Yes ❑No ❑N/A 11.
Trip Blank Custody Seals Present? ❑Yes ❑No ❑N/A
COMMENTS/SAMPLE DISCREPANCY Field Data Required? Dyes ❑No
Lot ID of split containers:
CLIENT NOTIFICATION/RESOLUTION
Person contacted: Date/Time:
Project Manager SCURF Review: Date:
Project Manager SRF Review: Date:
QuaIrax ID: 69614 Page 1 of 2 Page 14 of 16
1

DC#T Title: ENV-FRM-HUN1-0083 v05 Sample Condition Upon Receipt
�Pace
Effective Date: 05/24/2024
r
'Check mark top half of box if pH and/or dechlorination is verified and within the WO : 92739723
acceptance range for preservation samples. Project#
Exceptions:VOA,Coliform,TOC,oil and Grease,DRO/8015(water)DOC,LLHg PM: TIN Due Date: 07/08/24
"Bottom half of box is to list number of bottles CLIENT• 92-Un i tedScr
'**Check all unpreserved Nitrates for chlorine
Laboratory Receiving Location:Asheville❑ Eden❑ Greenwood❑ Huntersville❑ Raleigh❑ MechaniavweU KLIap—U .......,."�
Client Profile/EZ(Circle one) __ _Notes
4 •i 4 - O " a Q
2 a 2 Z ,^ c `z z V Q z
M.
V a i Z ¢ 2 z 2 O Y m
O
N T ❑ Z] C L ,`may = ? N 6 O C > 9 n Z O C
Z V m J Y Y 7
gg aE F E O 6 O
a a E d d ¢ a y > > y
E -E & u E E E E v 'a EE, `a E E E aE E e E A E QE E SE E E
V d 0 y N N ^� N R
= a 3 3 D Y F: H EC
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10
11
12
pH Adjustment Log for Preserved Samples
Sample ID Type of Preservative pH upon receipt Date preservation adjusted Time preservation Amount of Preservative Lot d
adjusted added
I {
Note: Whenever there is a discrepancy affecting North Carolina compliance samples,a copy of this form will be sentto 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 15 of 16

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Preservation non-conformance Identified for
� v
sample. a Page 16 of 16

Peterson, Kathryn S
From: Peterson, Kathryn S
Sent: Friday, July 26, 2024 10:11 AM
To: [e-mail]
Subject: NCG200513 Benchmark Exceedance
Hi Sean,
DEQ has received your notification of benchmark exceedance(s)for the facility covered under
NCG200513. Please continue to follow the tier response procedures listed in your permit. Let us know if
you need any technical assistance.
Best,
Kathryn
Kathryn Peterson
Assistant Regional Engineer
North Carolina Department of Environmental Quality
Division of Energy, Mineral and Land Resources
Office: [phone]
Mobile: [phone]
Email: [e-mail]
Mooresville Regional Office
610 East Center Avenue, Suite 301
Mooresville, NC 28115
E7
TH rAR A N
Qepariment of Env'yonmental Qua f
1