NCG160111_2021 DMR_20210629

DocuSign Envelope ID: 6CB3A75E-6F77-45B6-93B3-8A04B1 D49670
Semi-annual Stormwater Discharge Monitoring Report (DMR)
for North Carolina DEMLR General Permit No. NCG160000 - Asphalt
Date submitted 06/23/21
CERTIFICATE OF COVERAGE NO. NCG16 0111
FACILITY NAME APAC Atlantic, Inc. Plant#9
COUNTY Randolph
PERSON COLLECTING SAMPLES Kenneth Sorrell
LABORATORY ENCo Lab Cert. # 591
Comments on sample collection or analysis:
Part A: Stormwater Benchmarks and Monitoring Results
SAMPLE COLLECTION YEAR 2021
SAMPLE PERIOD ❑■ Jan -June ❑ July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply [:]SA
*Other Back Creek
PLEASE REMEMBER TO SIGN ON THE REVERSE 4
n No discharge this period?'
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches
Total Suspended Solids
Benchmarks ===>
-
-
100 mg/L or 50 mg/L4
001
06/03/2021
0.5
6.4
002
06/03/2021
0.5
11
1 Monthly sampling (instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall.
2For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a check mark here.
3The total precipitation must be recorded using data from an on -site rain gauge. Unattended sites may be eligible for a waiver of the rain gauge
4requirement. See General Permit text, Table 1, identifying the especially sensitive receiving water classifications where the more protective benchmark
applies.
Note: Results must be reported in numerical format. For example, do not report Below Detection Limit, BDL, <PQL, Non -detect, ND, or other similar non -
numerical format. When results are below the applicable limits, they must be reported in the format, "<XX mg/L", where XX is the numerical value of the
detection limit, reporting limit, quantitation limit, etc. in mg/L.
Note: If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses. See General Permit text.
Permit Date: 08/01/2019-05/31/2024 SWU-252, last revised 09/04/2019
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Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 55 gal of new oil per month.
❑ No discharge this period?'
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches'
Non -polar O&G by EPA
1664 (SGT-HEM)
Total Suspended Solids
New Motor Oil or Hydraulic
Oil Usage, Annual average
gal/mo
Benchmarks =__>
-
-
15 mg/L
100 /L or 50 mg/L'
_
Footnotes from Part A also apply to this Part B
Note: If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses. See General Permit text.
FOR PART AAND PART B MONITORING RESULTS:
• A SINGLE BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS.
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS.
• TIER 3: HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDANCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO ❑
IF YES, HAVE YOU CONTACTED THE DEMLR REGIONAL OFFICE AS REQUIRED BYTHE PERMIT? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail an original and one copy of this DMR, including all "No Discharge" reports, within 30 days of receipt of the lab results (or at end of monitoring period
in the case of "No Discharge" reports) to:
Division of Water Resources
Attn: DWR Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED:
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to
assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I
am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
—DocuSigned by:
K& lkol,lAVj
(Signature of Permittee)
Permit Date: 08/01/2019-05/31/2024
6/24/2021
(Date)
SWU-252, last revised 09/04/2019
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2�Sp PCCRE11
TNI ENCO Laboratories.
'
`9BOHpl".
Accurate. Timely. Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Thursday, June 17, 2021
EI Group, Inc. (TH005)
Attn: Parker Alvis
2101 Gateway Center Blvd., Suite 200
Morrisville, NC 27560
RE: Laboratory Results for
Project Number: [none], Project Name/Desc: APAC Plant 9
ENCO Workorder(s): CE08453
Dear Parker Alvis,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Friday, June 4, 2021.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods/procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative if applicable. This report shall not be reproduced except in
full, without the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
4P
Bill Scott
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 7

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SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: Outfall-01 Lab ID: CE08453-01 Sampled: 06/03/21 08:45 Received: 06/04/21 13:50
Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s)
SM 254OD-2011 NO PREP 06/10/21
06/10/21 11:34 06/11/21 11:35
Client ID: Outfall-02 Lab ID: CE08453-02 Sampled: 06/03/21 09:00 Received: 06/04/21 13:50
Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s)
SM 254OD-2011 NO PREP 06/10/21
06/10/21 11:34 06/11/21 11:35
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 Of 7

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SAMPLE DETECTION SUMMARY
Client ID: Outfall-01
Lab ID:
CE08453-01
Analvte
Results Flag MDL
2
Units Method Notes
Total Suspended Solids
6.4 2.5
2.5
mg/L SM 254OD-2011
Client ID: Outfall-02
Lab ID:
CE08453-02
Analyte
Results Flag MDL
2
Units Method Notes
Total Suspended Solids
2.5 2.5 mg/L SM 254OD-2011
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 7

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ANALYTICAL RESULTS
Description: Outfall-01 Lab Sample ID: CE08453-01 Received: 06/04/21 13:50
Matrix: Water Sampled: 06/03/2108:45 Work Order: CE08453
Project: APAC Plant 9 Sampled By: Kenneth Sorrell
Classical Chemistry Parameters
Analyte rCAS Numberl Results Flag Units DF MDL POL Batch Method Analyzed By Notes
Total Suspended Solids 6.4 mg/1- 1 2.5 2.5 1F09043 SM 254OD-2011 06/11/21 11:35 AAL
Description: Outfall-02 Lab Sample ID: CE08453-02 Received: 06/04/21 13:50
Matrix: Water Sampled: 06/03/2109:00 Work Order: CE08453
Project: APAC Plant 9 Sampled By: Kenneth Sorrell
Classical Chemistry Parameters
Analvte rCAS Numberl Results Flag Units DF MDL POL Batch Method Analyzed Notes
Total Suspended Solids 11 mg/L 1 2.5 2.5 1F09043 SM 254OD-2011 06/11/21 11:35 AAL
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 7

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QUALITY CONTROL DATA
Classical Chemistry Parameters - Quality Control
Batch IF09043 - NO PREP
Blank (1F09043-BLKI) Prepared: 06/10/2021 11:34 Analyzed: 06/11/2021 11:35
Spike Source %REC RPD
Anala Result Flag Q Units Level Result %REC Limits RPD Limit Notes
Total Suspended Solids 2.5 U 2.5 mg/L
LCS (1F09043-BSI) Prepared: 06/10/2021 11:34 Analyzed: 06/11/2021 11:35
Spike
Source
%REC
RPD
Analvte
Result Flag
Q
Units
Level
Result
%REC Limits RPD
Limit Notes
Total Suspended Solids
94
2.5
mg/L
100
94 80-120
Duplicate (1F09043-DUPI)
Prepared: 06/10/2021 11:34 Analyzed: 06/11/2021 11:35
Source: AE04899-01
Spike
Source
%REC
RPD
Analvte
Result Flag
Q
Units
Level
Result
%REC Limits RPD
Limit Notes
Total Suspended Solids
15
2.5
mg/L
45
101
20 LP-02, QM-12
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FLAGS/NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
[CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.
LP-02 Filtered residue did not meet 2.5 - 200mg range.
QM-12 Precision between duplicate samples was outside acceptance limits.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 7

DocuSign Envelope ID: 6CB3A75E-6F77-45B6-93B3-8A04B1 D49670
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