NCG030130_2021 DMR_20210603

SHIELD
ENGINEERING
May 24, 2021
Mr. Ryan Pennington
Gastonia Components and Logistics
Daimler Trucks North America, LLC
1400 Tulip Drive
Gastonia, NC 28052
Subject: Semi -Annual Sampling -- May 2021
NPDES General Permit No. NCC030000 - CoC No. NCG030130
Daimler Trucks, Gastonia Components and Logistics, LLC
1400 Tulip Drive Gastonia, North Carolina
Shield Project No. 1140099-09
Dear Mr. Pennington:
Shield Engineering, Inc. (Shield) successfully collected the semi-annual stormwater samples for
Stormwater Discharge Outfall (SDO) #002 at the Daimler Trucks Gastonia facility during the month of
May 2021. During the May 3'4 sampling event, Shield's measurement for pH was 7.5 at SDO #002. The
Qualitative Monitoring Report and a partially completed Discharge Monitoring Report (DMR) form are
attached to this cover letter. In addition, the analytical results for the stormwater samples collected during
the qualifying storm events are attached to this cover letter. Results from the May 3`d sampling event show
an exceedance of TSS at SDO #002.
The rain event on May V did not produce enough rain in order to collect the semi-annual stormwater
samples for Stormwater Discharge Outfall SDO #003. Shield will continue to monitor daily weather
conditions and continue coordination of appropriate staff and resources to collect stormwater samples at
this outfall, for the 1" semi-annual period (January — June 2021). Note that SDO #001 was sampled for the
1 S` semi-annual period in January 2021.
The person designated to act as the permittee by Daimler Trucks — Gastonia Facility should sign page 1 of
the attached DMR. The signed DMR form should then be mailed to the regulatory agency regional office
at Mooresville, NC. Shield greatly appreciates the opportunity to provide environmental services to Daimler
Trucks of 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,
SHIELD ENGINEERING, INC.
f
Magdaline zannis
Senior Project Manager
Melinda �Grec�ncj
Senior Engineer
e2crtL. Griffin, PE
President/CEO
Attachments: Stormwater DMR, Qualitative Monitoring Report, Analytical Results
4301 Taggart Creek Road www.shieldenpineering.com Telephone [phone]
Charlotte, NC 28208

NCDEQ Division of Energy, Mineral and Land Resources
5tormwater Discharge Monitoring Report (DMR) Form for NCG030000
Metal Fabrication
Click here for instructions
J Complete, sign, scan and submit the DMR via the Stormwater NPDES Permit ❑ata Monitoring Report (OMR) Upload form within
li 30 days of receiving sampling results. Mail the original, signed hard copy of the DMR to the appropriate DEMLR Regional Office.
Certificate of Coverage No. NCG03 0130
Facility Name: Daimler Trucks - Gastonia
Facility County: Gaston
Person Collecting Samples: TJ Gladden
Laboratory Name: Pace Analytical
Laboratory Cert. No.: 329
--
i Discharge during this period: El Yes No (if no, skip to signature and date)
i Has your facility implemented mandatory Tier response actions this sample period for any benchmark exceedances? ❑ Yes R1 No —
if If so, which Tier (1, ll, or 11I)?
A copy of this DMR has been uploaded electronically via htt s: edocs-den. nc.gov_jForms/5W-DMR ❑ Yes C] No
DateUploaded: (� f 3�2�
Analytical Monitoring Requirements for Outfalls with Industrial Activities — Benchmarks in (Red)
Parameter
Parameter
Outfall001
Outfall002
Outfall003
f outfaii
Cade
Outfall
N/A
Receiving Stream Class T
C
C
C
N/A
Uate Sample Collected MM/DD/YYYY
NA
5/3/2021
NA
46529
24-Hour Rainfall in inches
0.76
~
C0530
T5S in mg/L (100 or 51D`)
210
00400
pH in standard units (6.0 — 9.0)
7.5
0.0072
01119
Copper, total recoverable in mg/L
(O.o10}
0096
01051
Lead, total recoverable in mg/ L
~0
_
_(0.075)
i
01094
Zinc, total recoverable in mg/ L
❑ 029
i
{0.126)
78141
Total Toxic Organics (TTO) in mg/L(1)
a0,19704
(if required)
c5.0
DOS 5Z 1
_
Non -Polar 0il & Grease in mg/L(15)
Additional parameters for outfalls in drainage areas that use >55 gallons per month of new hydraulic oil on average
NCOIL Estimated New Motor/Hydraulic Oil NA
NA NA I
Usage in gal/month
- uottaIIs to ❑utstarid ing Resource waters (0RW), High Quality Waters (HQW), Trout Waters (Tr) and Primary Nursery Areas (PNA)
have a benchmark TSS limit of 50 mg/L. Ail other water classifications have a benchmark of 100 mg/L
Cotes (optional)^Benchmark exceedance for T55 (Outfall 002)
"I certify 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 knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting
false informatioryry�ing [he possibility of fines and imprisonment for knowing violations."
1 3 z
Signature of Per rttee or Delegated Authorized Individual D to
Email Address Phone Number

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 (TTO), 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 report. i further certify that this facility is implementing all the provisions of the Solvent
Man�-RlarLided in the Stormwaier Palfution Prevention Plan."
_ 4
ature of Permittee or Delegated Authorized Individual pat
Email Address Phone Number