NCG030085_2021 DMR_20210604

DAIMLER
Sean Quarry
Sr. Environmental Engineer
Daimler Trucks
1800 North Main Street
Mount Holly. NC 28120
704.822.7034 Phone
May 26, 2021
NCDEQ- Division of Water Resources
610 East Center Avenue
Suite 301
Mooresville, North Carolina 28115
To whom it may concern:
Please find the enclosed March Stormwater Discharge dutfall (SDD) #001 and #002 form for
the Daimler Trucks NA, LLC - Mount Holly Truck Manufacturing Plant (TMP). The stormwater
samples were collected on May 3, 2021. Results from this sampling event show an exceed ance
of the following parameter(s) at or above the corresponding benchmark:
• SDQ #001 (05-03-2021) - Zinc - 0.200 mg/L (Benchmark 0.126 mg/L)
• SDO #002 (05-03-2021) -Zinc - 0.270 mg/L (Benchmark 0.126 mg/L)
■ SDQ #002 (05-03-2021) - Copper- 0.015 mg/L (Benchmark 0.010 mg/L)
Daimler remains in Tier 3 at SD❑ #001 and SD❑ #002 for Zinc and Copper. Shield will continue
to perform monthly sampling per Tier requirements until instructed to decrease sampling
frequency by Daimler.
Should you have any questions, please contact me at 704-822-7034 or
[e-mail].
Sincerely,
Daimler Trucks NA, LLC
Sean Quarry
Sr. Environmental Engineer
Enclosures - DTNA signed DMf2 forms (2 copies)

SHIELD
ENGINEERING
May 20, 2021
Mr. Sean Quarry
Daimler Trucks North America, LLC
1800 North Main Street
Mount Holly, NC 28320
Subject: Monthly Stormwater Sampling — May 2021
NPDES General Permit No. NCG030000
Daimler Trucks of North America LLC - Mount Holly, North Carolina
Shield Project No. 1140109-08
Dear Mr. Quarry;
Shield Engineering, Inc. (Shield) successfully collected monthly stormwater samples for Stormwater
Discharge Outfalls (SDO) #001 and #002 at the Mount Holly facility for the nionth of May 2021. During
the May V sampling event, Shield's Feld measurements of pH were 6.5 and 6.5 at SDO 4001 and SDO
4002, respectively. In addition to collection of samples, Shield performed Qualitative Monitoring at SDO
#001 and 4002. A partially completed discharge monitoring report (DMR) is attached, as well as the
analytical results and Qualitative Monitoring Report forms. The person designated to act as the permittee
by Daimler Trucks — Mount Holly facility should sign pages 1 and 2 of the DMR. The signed DMR form
should then be mailed to the regulatory agency regional office at Mooresville, NC. Results from the May
3'a sampling event show cxceedances at SDO #001 for Zinc and at SDO #002 for Zinc and Copper.
Daimler remains in Tier 3 at SDO #001 and SDO #002 for Zinc, Copper and TSS. Shield will continue to
perform monthly sampling per Tier 2 requirements until instructed to decrease sampling frequency by
Daimler. Shield greatly appreciates the opportunity to provide environmental services to Daimler Trucks,
North America. If you have any questions in reference to this document or require further information,
please feel free to contact either of the undersigned at [phone].
Respectfully,
SIIIELD ENGLVEERING, INC.
Jr�+
Magdaline Tzannis
Senior Project Manager
Melinda 1. 'reenc, EFr
Senior Engineer
G'
Robert L. Griffin, P.E.
President/CEO
Al'rACHMENTS
Stormwater DMR, Qualitative Monitoring Report, Analytical Rctiults
4301 Taggart Creek Road www.shieldenigineering.com Telephone [phone]
Charlotte, NC 28208

NCDEQ Division of Energy, Mineral and Land Resources
Stortmwater Discharge Monitoring Report (DMR) Form for NCG030000
Metal Fabrication
Click here for instructions
Complete, sign, scan and submit the OUIR via the Stormwater NPDES Permit Data Moni toring Report DMR Upload form within
30 days of receiving sampling results. Mail the original, signed hard copy of the DMR to the appropriate DE MLR Regional Office.
Certificate of Coverage No. NCG03 0085
Person Collecting Samples: TJ Gladden
Facility Name: Daimler Trucks - Mount Holly
Laboratory Name: Pace Analocal
Facility County: Gaston
Laboratory Cert. No— 329
Discharge during this period: r❑ Yes ❑ No cif no, skip to signature and date)
Has your facility Implemented mandatory Tier response actions this sample period for any benchmark exceedances? Q Yes ❑ No
If so, which Tier (I, II, or Ill)? lil
A copy of this DMR has been uploaded electronically via httos:/jedocs.dea-nc.s[ov/Forms/SW-DMR ❑1 Yes ❑ No
Date Uploaded: � N 2 r
Analytical Monitoring Requirements for 0utfalls with Industrial Activities— Benchmarks in (Red)
parameter
Code
Parameter
Outfall001
Outfall002
Outfall
Outfall
0utfall
N/A
Receiving 5tream Class
WS-IV; CA
WSAV; CA
N/A
Date Sample Collected MM/DD/YYYY
5/3/2021
5/312021
46529
24-Hour Rainfall in inches
0.76
0.76
C0530
TS5 in mg/L 1100 or 5001
32
73
00400
pH in standard units (6.0 — 9.0)
6.5
6.5
01119
Copper, total recoverable in mg/L
0.009
0.015
(0.010)
01051
Lead, total recoverable in mg/ L
0.0029
0.0027
(0.075)
01094
Zinc, total recoverable in mg/ L
0 200
0.270
(0.126)
78141
Total Toxic Organics g7C) in mg/L(1)
NA
NA
(if required]
00552
Non -Polar Oil & Grease in mg/L (151
<5.0
a5.0
Additional parameters for outfalIs in drainage areas that use a55 gallons per month of new hydraulic oil on average
NCOIL Estimated New Motor/Hydraulic 01I NA NA
Usage in al/month
OutfaIIs to Outstanding Resource Waters (0RW), Hlgh Quality Waters (HQW), Traut Waters (Tr) and Primary Nursery Areas (PNA)
have a benchmark TSS limit of 54 mg/L. All other water classifications have a benchmark of 100 mg/L
Hates (Q tional): Benchmark exceedances for zinc (Cutfall001 and 002): Copper (Qutfa11002)
"I cert'fy by my signature below, 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 knowl a and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting
false inform including th po rlity of fines and mprisonment far knowing violations." 7
oC-7�C
signature of ermlttee or Delegated Author[zed Individual Date
Email Address C"') IL Ct j skGl,, oda"n �' . L n Phone NumbdA�2-L - 7 3 y3

Total Toxic Organics Certification:
"Based upon my inquiry of the person or persons directly responsible for managing compliance with the permit monitoring
requirement for total toxic organics FTO), I certify that to the best of my knowledge and belief, no leak, spill, or dumping of
concentrated toxic organics into the stormwater or onto areas which are exposed to rainfall or stormwater runoff has occurred since
filing the last discharge monitoring rqprt. I further certify that this facility is implementing all the provisions of the Solvent
Manageme5*15 i included thv%Mrmwater Pollution Prevention Plan."
5igna ure of Pe ittee or Delegated Authorized Individual Date
Email Address C r-a e 5 , i-e d f4 re I-- & Ar , f r C� -,- Phone !Number 711 M%- ? ee _ 7 S v s