NCG030130_2021 DMR_20210826

OSHIELD
August 10, 2021
Mr. Ryan Pennington
Gastonia Components and Logistics
Daintier Trucks North America, LLC
1400 Tulip Drive
Gastonia, NC 28052
Subject: Stormwater Sampling — July 2021
NPDES General Permit No. NCG030000 - CoC No. NCG030130
Daimler Tracks, 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 3r1 Quarter 2021 stormwater samples for
Stormwater Discharge Outfall (SDO) #001 at the Daimler Trucks Gastonia facility during the month of
July 2021. During the July 81 sampling event, Shield's measurement for pH was 8.00 at SDO #001. Some
foam was observed in the stormwater discharge at SDO #001 on July 8'. 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 July 8' sampling event show an exceedance of Copper at
SDO 4001.
The rain event on July 81 did not produce enough rain in order to collect the stormwater samples for
Stormwater Discharge Outfalls (SDO) #002 & #003. Shield will continue to monitor daily weather
conditions and continue coordination of appropriate staff and resources to collect stormwater samples at
these outfalls, for the 311 quarter 2021 (July — September 2021).
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,
SlUE0 EN MEEIUNG, INC.
Magdaline Txannis
Senior Project Manager
Melinda M. Greene, EIT
Senior Engineer
Robert L. Griffi4n,
President/CEO
Attachments: Stormwater DMR, Qualitative Monitoring Report, Analytical Results
4301 Taggart Creek Road www.shield.erigineering.com Telephone [phone]
Charlotte, NC 28208 License No. F-0856

NCDEQ Division of Energy, Mineral and Land Resources
5tormwater Discharge Monitoring Report (DMR) Form for NCG030000
Metal Fabrication
Click here for instructions
Complete, sign, scan and submit the DMR via the Stormwater NPOES Permit Data Monitoring Report DMR Upload fqcm within
30 days of receiving sampling results. Mail the original, signed hard copy of the 0 M R to the appropriate DEMLR Reeional Office.
Analytical Monitoring Requirements for Qutfallswith Industrial Activities— Benchmarks in (Red)
Parameter
Code
Parameter
❑utfall001
outfall002
outfall003
Dutfall
Dutfall
N/A
Receiving Stream Class
C
C
C
N/A
Date Sample Collected MM/DD/YYYY
07108/2021
No Flow
No Flow
46529
24-Hour Rainfall In inches
0.23
C0530
TSS in mg/L (100 or 500)
31
00400
pH in standard units (6.0 —9.0 FW,
6.".5 5W)s.o
Copper, total recoverable in mg/L
01119
(0.010 FW, 0.0058 SWj
O.Q16
01051
Lead, total recoverable in mg/ L
6.075 FW, 0.22 SWj
0.0011
Zinc, total recoverab.'e in mg/ L (0.126
01094
FW, 0.095 5 Wi
0.0046
00340
Chemical Oxygen Demand (COD) in
_
Y
mg/L (1201
45
00552
Non -Polar Oil & Grease in mg/L (15)
c5,0
- Outrans to Outstanding sesource Waters (ORW), High Quality Waters (HQW), Trout Waters (Tr) and Primary Nursery Areas (PHA)
have a benchmark TSS limit of 50 mg/t. All other water classifications have a benchmark of 100 mg/L
FW (Freshwater) SW {Saltwater]
Notes (optional]: Benchmark exceedance for Copper (Outfall 001 ).
"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 forgathering 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 Inform 9fan, including the possibility of fines and imprisonment for knowing violations."
Signature of Permittee or Delegated Authorized Individual
[e-mail]
Email Address
�W
Date
704-868-5760
Phone Number

re-
EnvIronnienfal
Quafiey
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out thisform, please visil https:/ldeq.ne.gov/about/divisio»s/energy-mineral-land-resources)
n p des-s t omiwa ter- gps
Permit No.: N1C1 1 1 1 1 1 1 or Certificate of Coverage No.: NICIGI 1! 1 1 1 1
Facilit Name:`
County:.. G456ri Phone No.
Inspector:
Date of Inspection: AI - Time of inspection: U1; Bp
Total Event Precipitation (inches): O. ^--Ar.
I Ail permits require qualitative monitoring to be performed during a "measurable stone event."'
A "measurable storm event" is a storm event that results in an actual discharge fi-om the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and the permittee obtains approval from the local DEIMLR
Regional Office.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee) T
1. Dutfall Description:
Dutfall No. Cot
Receiving Stream:
Structure (pipe, ditch, etc.):�e
Describe the industrial activities that occur within the outfall drainage area:
Pnge 1 of 2
SWU.142, Lasi modified 0601/'_018

2. Color: Describe the color of thec arge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: �__ rpllal
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chloride odor, etc.);
4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
1 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
6-;, 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
67 2 3 4 5
7. Is there any foam in the stormwater discharge? )P Yes
8. Is there an oil sheen in the stormwater discharge? DYes
'WERO
#No.
9. is there evidence of erosion or deposition at the outfall? D Yes S�No.
10. ❑ther Obvious indicators of Stormwater Pollution;
List and describe
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Paige 2 of
SWU-242. i_ust nwdified 06.0112W

aceAnalytical
Report of Analysis
Shield Engineering
4301 Taggart Creek Road
Charlotte, NC 28208--5483
Attention: Melinda Greene
Project Name: Daimler Gastonia SW
Lot Number:WG09066
Date Completed:08106/2021
08/09/2021 4:23 PM
Approved and released by:
Project Manager I: Hannah K. Lucas
AAW
usr arawKurmdxo. as�m
w CC Ptt0iY e❑
iFSnWi L+30Pfiryn
The electronic signature above is the equivalent of a handwritten signature.
This report shall not be reproduced, except in its entirety, without the written approval of Pace Analytical Services, LLC.
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172
TeL [phone] Fax: [phone] www.pacelabs.corn
Page 1 of 20

PACE ANALYTICAL SERVICES, LLC
SC DHEC No: 32010001 NELAC No: E87663 NC ❑E"NR No 329 NC Field Parameters No: 5639
Case Narrative
Shield Engineering
Lot Number: WG09066
This Report of Analysis contains the analytical result(s) for the sample(s) listed on the Sample Summary
following this Case Narrative. The sample receiving date is documented in the header information
associated with each sample.
All results listed in this report relate only to the samples that are contained within this report.
Sample receipt, sample analysis, and data review have been performed in accordance with the most
current approved The NELAC Institute (TNI) standards, the Pace Analytical Services, LLC ("Pace")
Laboratory Quality Manual, standard operating procedures (SOPs), and Pace policies. Any exceptions to
the TNI standards, the Laboratory Quality Manual, SCPs or policies are qualified on the results page or
discussed below.
If you have any questions regarding this report please contact the Pace Project Manager listed on the
cover page.
Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc,)
106 Vantage Point drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 2 of 20

PACE ANALYTICAL SERVICES, LLC
Sample Summary
Shield Engineering
Lot Number: WGO9056
Project Name: Daimler Gastonia SW
Project Number,
Sample Number Sample ID Matrix Date Sampled Date Received
001 SDO-001 Aqueous 07/08/2021 0940 07/09/2021
(1 sample)
Pace Analytical Services, L L C (formerly Shealy Environmental Services, lnc.)
106 Vantage Point Drive West Columbia. SC 29172 [phone] Fax [phone] www.pacalabs.com
Page 3 of 20

PACE ANALYTICAL SERVICES,
LLC
Detection Summary
Shield Engineering
Lot Number: WG09056
Project Name: Daimler Gastonia SW
Project Number:
sample sample ID
Matrix Parameter Method
Result a
Units
Page
001 SDO-001
Aqueous COD SM 5220D-
45
mglL
5
001 SDO-001
Aqueous TSS SM 2540D-
31
mglL
5
001 SDO-001
Aqueous Copper 200.8
is
uglL
6
001 SDO-001
Aqueous Lead 200.8
1.1
uglL
6
001 SDO-001
Aqueous Zinc 200.8
4.6 J
uglL
6
(5 detections)
Pace Analytical Services, LLC (formerly Shealy ErMronmental Services, Inc_)
105 Vantage Point arise West Columbia, SC 29172 [phone] Fax [phone] T 1 www.pacelabs.com
Page 4 of 20

Inorganic non-metals
Client: Shield Engineering Laboratory ID: WG09056-001
Description: SDO-001 Matrix: Aqueous
Date Sampled:0710812021 0940 Project Name: Daimler Gastonia SW
Date Received: 0710 912 021 Project Number:
Run Prep Method
Analytical Method Dilution
Analysis Date Analyst Prep Date
Batch
2
(COD) SM 5220D-2011 1
07/16/2021 1501 DAK
99065
1
(TSS) SM 254OD-2011 1
07/14/2021 1725 MOM
98866
1
(SGT - HEM (n) 1664B 1
07/1612021 1100 SAF
99101
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
!)nits
Run
COD
SM 5220D-2011
45
20
20
mg1L
2
TSS
SM 254OD-2011
31
7.1
1.0
mg1L
1
SOT - HEM (non -polar material)
1664E
NO
5.0
1.6
mg/L
1
LOQ = Limit of 0uantitation B = Detected In the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
NO = Not detected at or above the DL N = Recovery Is out of enterla P = The RPD between two GC columns exceeds 40% J = Estimated result C 1.00 and - DL L = LCSILCS❑ failure
H = Out of hofding time W = Reported on wet weight Oasis S = MSIMSD failure
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Paint Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacalabs.com
Page 5 of 20

ICP-MS
Client:Shleld Engineering
Laboratory ID:WG09056-001
Description: SDO-001
Matrix: Aqueous
Date Sampled.07108/2021 0940
Project Name: Daimler Gastonia SW
Date Received:0710912021
Project Number:
Run Prep Method
Analytical Method Dilution Analysts Data Analyst
Prep Date
Batch
1 200.2
200.8 1 08/06/2021 0929 SNW
07/12/2021 1129
98525
CAS Analytical
Parameter
Number Method
Result Q
LOQ DL
Units Run
Copper
7440.50-8 200.8
16
5.0 1.3
ug1L 1
Lead
7439.92-1 200.8
1.1
1.0 0.25
ug1L 1
Zinc
7440-66-6 200.8
4.6 J
10 2.5
uglL i
LOQ = limit of Quantitation B = Detected in the method blank E = Quantitaudn of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% J = Estimated result t LOO and �_ DL L = LCSILCSD failure
H = Out of bolding time W = Reported on wet weight t:asis S = MSIMSO fa3ture
Pare Analytical Services, LLC (formerly Shealy Environmental ServiCeS, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax (a03) 791-9111 www.pacelabs.corn
Page 6 of 20

QC Summary
Pace Analytical Services, LLC (formerly She* Environmental Services, Inc.) QC Data for Lot Number: WG09056
106 Vantage Point Drive West Columbia. SC 29172 [phone] Fax [803] 791-9111 www.paeelabs.com
Page 7 of 20

Inorganic non-metals - MB
Sample ID: WQ98866-001 Matrix: Aqueous
Batch: 98866
Analytical Method: SM 2WD-2011
Parameter Result Q Dil LOQ DL Units Analysis Date
TSS ND 1 1.0 1.0 mg/L 07/14/20211725
LOQ = Limit of Quantization
OL = Detection Limit
ND = Not detected at or above the OL N = Recovery is out of cr teria
J = Estimated result 4 LOO and a DL P - The RPD between two GC columns exceeds 40%
' = RSD is out of criteria - = RPO is out of criteria
Note: Calculations are performed before rounding to avoid round -off errors in calculated resuits
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc,)
106 Vantage Point Drive West Colurnbia, SC 29172 [phone] Fax [phone] www.pacelabs.rom
QC Data for Lot Number: WG09056
Page 8 of 20

Inorganic non-metals - LC5
Sample la: WQ98866-002 Matrix: Aqueous
Batch: 98866
Analytical Method: SM 254OD•2011
Spike
Amount Result %Rec
Parameter (mg/L) (mg1L] Q Oil % Roe Limit Analysis Date
7SS 250 250 1 98 90-110 07/14/2021 1725
LOO = Limit of Lluantitation ND = Not detected at or above the DL N = Recovery Is out of criteria
OL = Detection Urnit J - Estlmated result - LOO and > DL P - The RPO between two GC co[LAmns exceeds 40%
' = IRS is out of criteria * = RPD is out of criteria
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (fonnerty Shealy Envlmnnrental Services, tnc.) OC Data for Lot Number: WG09056
106 Vantage Point Drive West Cotumhia, SC 29172 (803] 791-9700 Fax [phone] www.parelahs.com
Page 9 of 20

Inorganic non-metals - MB
Sample to: VVQ99465-001
Batch: 99065
Analytical Method: 5M 5220D-2011
Parameter
COD
Matrix: Aqueous
Result Q Dil 1_00 DL Units Analysis Date
ND 1 20 20 mg/L 0711&2021 1500
LOQ = Limn of Quanlitatlon ND = Not detected at or *Nye the DL N = Recovery is out of criteria
OL = Detection Urnit J = EsJmated result s LOQ and - DL P = The RPD between two GC columns exceeds 40%
' = RSD is out of criteria . = RPD is out of cnten a
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC {iarmerfy Shealy Environmental Services, Inc_) QC Data for Lot Number; WG09056
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] ii www.pace[abs.com
Page 10 of 20

Inorganic non-metals - LCS
Sample ID: WQ99065-002 Matrix: Aqueous
Batch: 99065
Analytical Method: SM 5220D-2011
Spike
Amount Result %Rec
Parameter (mg1L) (mg/L) Q ❑il % Rec Limit Analysis Date
COD 40 42 1 105 95-105 07/16/2021 1500
LDo = Limit of Quantitatlon NO = Not detected at or above the OL N = Recovery is out of criteria
❑L = Detection Limit J = Estimated result � LOQ and - OL P = The RP between two GC columns exceeds 40%
= RS❑ is out of Cft Lena + = RPD is out of orueria
Note: Calculations are performed before rounding to avoid round off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental services, Inc,) QC Data for Lot Number: WG09056
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.corn
Page 1 i of 20

ICP-MS - MB
Sample ID: WQ98525-001
Matrix: Aqueous
Batch:98525
Prep Method; 200.2
Analytical Method: 200.8
Prep Date: 07/12/2021 1129
Parameter Result Q
DIl LOQ DL
Units
Analysis Date
Capper ND
Lead
1 5.0 1.3
ug/L
07/30/2021 1801
ND
Zinc
1 1.0 0,25
ug/L
08108120210010
N❑
1 10 2.5
ug/L
07/30/2021 1801
LOO = Limit of Qua ntitatfon ND = Not detected at or above the OL N = Recovery Is out of criteria
OL = Detection Limit J = Estimated result � LOQ and ? DL P = The RPO between two GC columns exceeds 40Y,
= RSD is out of criteria + = RPO is out of criteria
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace AnaiyticaI Services. LLC (farmedy Shealy Environmental Services, Inc.} QC Data for Lot Number: WG09056
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 16 of 20

ICP-MS - LC5
Sample ID: W098525-002
Matrix: Aqueous
Batch: 98525
Prep Method: 200.2
Analytical Method: 200.8
Prep Date: 07/12/2021 1129
Spike
Amount
Result
9%Ree
Parameter
(ug1L)
(ug1L)
Q cif °% Roe
Limit
Analysis Date
Copper
100
110
1 112
85-115
07130120211808
Lead
100
94
1 94
85-115
08108120210017
Zinc
100
94
1 94
85-115
07130120211808
LQO = Limit of Quantita5on ND = Not detected at or above the DL N - Recovery is out of criteria
❑L = Detection Limit J = Estimated result < LDO and ? OL P - Tf1e RPD between two GC columns exceeds 40 %
= RSD is out of criteria + = RPD Is out of criteria
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Pace Analytical Services, LLC (formerly Shealy Environmental Services, lnc.) OC Data for Lot Number: WG09066
105 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.corn
Page 17 of 20

Chain of Custody
and
Miscellaneous Documents
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [803] 791-9111 www.pacelabs.com
Page 18 of 20

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106 Vantage Paint Crive West Columbia• SC 29172 [phone] Fax [phone] www,pacelabs.com
Page 19 of 20
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Pace Analytical Services. LLC fformerly Shealy Environmental Services, Inc.j
106 Vantage Point Drive West Calumhia, SC 29172 [phone] Fax [phone] www.pacetabs,com
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Page 20 of 20