NCG030517_DMR_20211028

NC Department of
Environmental quality
Received
October 19, 2021
VIA FEDERAL EXPRESS
Mr. Levi Hiatt, EIT
Assistant Regional Engineer
NCDEMLR Winston-Salem Regional Office
450 West Hanes Mill Road, Suite 300
Winston-Salem, NC 27105
OCT 2 8 2021
Winston-Salem
Regional Office
RE: Notification of Benchmark Exceedance
CY 2021 Quarter 3 (July - September) Sampling Event
MTB High Point — General Stormwater (SW) Permit No. NCG030517
Dear Mr. Hiatt:
Enclosed is one copy of the Stormwater Discharge Monitoring Report for samples collected on
September 8, 2021, along with an updated summary table of stormwater results and findings from
a stormwater management inspection of the facility. The inspection was completed on August
31, 2021 by our environmental consultant, Leaf Environmental & Engineering, P.C. (LEAF).
The most recent sample represents the second consecutive benchmark exceedance for zinc at the
Liftgate Plant Outfall 001. Results from the stormwater management inspection identify
galvanized liftgate components stored outdoors as a significant source of zinc in stormwater
runoff from the facility. These litigate components are stored on paved surfaces which drain to
curb inlets; therefore, the inspection report suggests installation of biochar curb inlet filter inserts
to reduce zinc concentrations in stormwater runoff. Mickey Truck Bodies (MTB) is currently
working on implementing these filter inserts as a best management practice (BMP) and will begin
monthly stormwater monitoring under "Tier Two' response requirements after completion. It
should be noted that the liftgate facility is relatively new thus, the increased outdoor materials
storage is likely related in increased facility utilization and production.
Zinc concentrations also continue to exceed the permit benchmark values at the Main Plant
Outfall 001. As shown in the attached summary table, zinc concentrations have been greatly
reduced compared to historical sample results and have remained relatively stable just above the
benchmark value for several years. MTB previously provided documentation of relief from tiered
response measures received from the NCDEMLR in April 2014. MTB does not plan to
implement further corrective actions at the Main Plant unless zinc concentrations substantially
increase, or unless direction is received from your office. LEAF also inspected the Main Plant
while on site on August 31, 2021 and did not identify any outdoor storage of galvanized metal
parts or other processes exposed to stormwater that may contribute to zinc in stormwater runoff.
Potential remaining sources of the observed zinc concentrations include the underground pipe
leading to Main Plant Outfall 001, which is galvanized steel, galvanized ductwork on building
roofs, and tire dust from vehicle traffic on site.

Mr. Levi Hiatt
Asrt Regional Engineer -
October 19, 2021
Page 2
Should you have any questions or need additional information, please call me at [phone].
Sincerely,
MICKEY TRUCK BODIES, INC.
Josh Soto
EHS Manager
Enclosure

NCDEQ Division of Energy, Mineral and Land Resources NC Department of
Envonmental Q, aGty
Stormwater Discharge Monitoring Report (DMR) Form for NCG03008 Received
Metal Fabrication
Click here for instructions 0 C T 28 2021
Complete, sign, scan and submit the DMR via the Stormwater NPDES Permit Data Monitoring Report Mftlr4911oiOlorlmrWithin
30 days of receiving sampling results. Mail the original, signed hard copy of the DMR to the appropriatelbEWL9�Wgf9n%j_Office.
Certificate of Coverage No. NCG03 0517
Person Collecting Samples: Josh Soto
Facility Name: Mickey Truck Bodies, Inc.
Laboratory Name: ENCO Laboratories
Facility County: Guilford
Laboratory Cert. No.: 591
Discharge during this period: +' Yes 0 No (if no, skip to signature and date)
Has your facility implemented mandatory Tier response actions this sample period for any benchmark exceedances? QYes No
If so, which Tier (I, II, or III)? II
A copy of this DMR has been uploaded electronically via https://edocs.deg.nc.gov/Forms/SW-DMR {'; Yes cNo
Date Uploaded:
Analytical Monitoring Requirements for Outfalls with Industrial Activities — Benchmarks in (Red)
Parameter
Parameter
Outfall
Outfall
Outfall
Outfall
Outfall
Code
N/A
Receiving Stream Class
Water Supply
Water Supply
N/A
Date Sample Collected MM/DD/YYYY
09/08/21
09/08/21
46529
24-Hour Rainfall in inches
0.18
0.18
C0530
TSS in mg/L (100 or 50*)
17
13
pH in standard units (6.0 — 9.0 FW,
00400
6.8-8.5 SW)
6.8
7.3
Copper, total recoverable in mg/L
01119
(0.010 FW, 0.0058 SW)
0.00555
0.00646
Lead, total recoverable in mg/ L
01051
(0.075 FW, 0.22 SW)
<0.00310
<0.00310
Zinc, total recoverable in mg/ L(0.126
01094
FW, 0.095 SW)
0.141
0.320
Chemical Oxygen Demand (COD) in
00340
mg/L (120)
38
32
00552
Non -Polar Oil & Grease in mg/L (15)
<2.70
<2.70
* Outfalls to Outstanding Resource Waters (ORW), High Quality Waters (HQW), Trout Waters (Tr) and Primary Nursery Areas (PNA)
have a benchmark TSS limit of 50 mg/L. All other water classifications have a benchmark of 100 mg/L
FW (Freshwater) SW (saltwater)
Notes (optional):
"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, orthose persons directly responsible for gatheringthe 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."
Signature of Permittee or Delegated Authorized Individual Date
Ml
Email Address
336-898-Q12�
Phone Number

Mickey Truck Bodies
Summary of Stormwater Results
Stormwater Outfall 1
Date
Collected I
o
N
c
1~
O
E
e
a
O �.
v
mg/L
mg/L
I mg/L
mg/L
mg/L
Main Plant - 001
1/29/2014
14
0.00744
0.0026
1.89
2.43
6.4
2/10/2014
12
0.00957
0.0024
0.635
1.81
5.63
3/12/2014
47
0.0141
0.0073
0.762
<1.60
5.98
4/302014
3.2
0.00731
<0.0021
1.4
2.1
5/15/2014
150
0.0194
0.0134
0.496
<1.60
6.15
7/152014
22
0.00441
0.0022
0.132
2.83
6.71
12/162014
15
0.00767
0.0021
0,392
3.99
6.78
6/302015
160
0.042
0.03
1.28
<3.15
7.17
Fall 2015
No discharge
1/52016
17
0.00562
<0.0031
0.165
<2.70
7.3
8/32016
47
0.01290
0.0085
0.108
<2.70
7.3
3/102017
44
0.00725
0.00305
0.247
<2.70
8.1
7/19/2017
98
0.02570
0.00814
0.802
12.9
7.3
4142018
20
0.0148
0.00349
0.73
3.49
6.5
10/18/2018
14
<0.00160
<0.00310
0.205
12.8
7
2272019
23
0.00534
<0,00310
0.186
<2.70
7.2
10/302019
57
0.00774
<0.00310
0.15
12
7.2
4202020
14
0.00370
<0.00310
0.0866
<2.70
7.8
10282020
5.2
0.00453
<0.00310
0.156
<2.70
6.8
5/32021
<2.5
0.00393
<0.00310
0.132
<2.70
7.2
9/8/2021
17
0.00555
<0.00310
0.141
1 <2.70
1 38
6.8
Lifgate - 001
4/4/2018
No Discharge
10/182018
9.4
0.00570
<0.00310
0.0858
5.75
7
2/27/2019
18
0.00219
<0.00310
0.101
<2.70
6.8
10/302019
9.1
<0.00160
<0.00310
0.0191
7.02
7.2
4202020
3.8
0.00203
<0.00310
0.0543
5.85
7.2
1028/2020
180
0.00818
<0.00310
0.112
15.8
7.2
5/32021
16
0.00620
<0.00310
0.159
1 <2.70
7.6
9/82021
13
0.00646
<0.00310
0.320
<2.70
32
7.3
Permit Benchmark
100
0.010
0.075
0.126
15

LEAF ENVIRONMENTAL
& ENGINEERING, P.C.
P.O. BOX 14609 - RTP, NC 27709
PHONE [phone]
FAX [phone]
September 13, 2021
VIA FED -EX
Mr. Josh Soto
EHS Manager
Mickey Truck Bodies, Inc.
1305 Trinity Avenue
High Point, NC 27260
RE: "Tier One" Stormwater (SVV) Management Inspection
Liftgate Outfall 001 Benchmark Exceedance (Zinc — May, 2021)
General Stormwater Permit No. NCG030517
Dear Josh:
Enclosed is one (1) copy of the referenced inspection report. The inspection was
completed on August 31, 2021 and is in response to the benchmark exceedance reported
from the SW sample collected at the Liftgate Outfall 001 in May 2021.
The report notes parameters that exceeded benchmark concentration, potential sources of
contaminants observed, and identifies recommended corrective actions that may reduce
concentrations of contaminants in future samples. Note actions taken by MTB-HP
Liftgate Plant to reduce zinc concentrations in SW runoff on the attached form and
maintain the form on file with the Stormwater Pollution Prevention Plan (SPPP).
Should you have any questions, please call me at [phone].
Sincerely,
LEAF ENVIRONMENTAL & ENGINEERING, P.C. I
Steven R. errald, P.E.
Environmental Engineer
Enclosures
Mickey Truck Bodies/206512IStormwater/May 2021ILigate — Tier 1 Zinc ltr 9-21

Stormwater Management Inspection Log — Tier One (Zinc)
Mickey Truck Bodies, Inc. — Liftgate Facility
Stormwater NPDES Permit NCG030517
1305 Trinity Avenue
High Point, NC
Stormwater Sample Results & Permit Benchmark Concentrations
Date
5/3/21
Benchmark
Tier Status
Oil & Grease (O&G)
< 2.70 mg/L
15 mg/L
N/A
Total Suspended Solids (TSS)
16 mg/L
100 mg/L
N/A
pH
7.6 s.u.
6.0 - 9.0 s.u.
N/A
Copper (Cu)
0.00620 mg/L
0.010 mg/L
N/A
Lead (Pb)
< 0.00310 mg/L
0.075 mg/L
N/A
Zinc (Zn)
0.159 mg/L
0.126 mg/L
Tier One
Potential Sources of Pollutant(s):
• Outdoor storage of galvanized metal components —see photos (Zn)
• Hydraulic/motor oil leaks from vehicles— none observed (Zn, COD, O&G)
• Leaks from trash bins — see photos of trash bins missing drain plugs (COD, O&G)
• No significant potential sources of copper or lead were observed
Actions/Controls Implemented to Date (Observed During Inspection):
• Used oil drum storage has been moved indoors on containment pallets to better control
incidental spills that may occur during fluid transfer
• Oil/water separator has been installed to treat air compressor blowdown — see photos
Potential Actions/Controls to Further Reduce Concentrations of Parameter(s) in Stormwater Run-off:
• Install drop inlet inserts in four (4) storm drains collecting stormwater from areas containing
galvanized metal components to treat zinc prior to discharge (see attached example)
• Install drain plugs in all outdoor trash bins
Date Actions/Controls Implemented (to be completed by MTB):
Inspector (print name): Steven Ger ald Le f Environmental & Engineering, P.C.
Inspector (signature):
Date: Tg— 1—Z1

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rrOMNGb
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STORMWATER TREATMENT
CATCH
BASIN
I n s e r t s
FIELD ANALYSIS
Treatment Systems
Ha.dl ,dey
St rmwaW
Average Test
Results
IBalom Treatment
Install
!After Treatment Install %Reduced
;Marine Industrial [upper r 2124
pgIL
T 8.451p9/L 6022%
,Zinc 152.74
p91L
33.5'k/-L 78A7%
:Pallet Repair Facility 'Copper j 279
pgIL
� 7.35'pg0. 736A%
', CBI ._ .. ;Zinc j 125
pg/L
_._ .
7.4!pg/L 94.08%.
-
C00 r 179.5
m9k
..___.
33'mglL 81.62%
�Pallet Repair Facility Copper j 62.
pgIL
C 8.15I p9— 86.95%
'CB5 ''Zinc a 521
pgIL
6151pg4 88.20%
COD ` 437.5
mgIL -_T
-9 L--�, 97.94%
�I
' Treatment Installed was Catch
Basin Insert
'—
xilh BWcharOASICTM
Simple • Proven • Effective
Biochar forilormwaler {rea{men{ fnce Im
Stormwater£
B10CHAR:
STOPMUTU
TREATMENT
�..o o—o
MEDIAS:
BiocharBAs c
al.rmwnt.t m.n\m.ni nl4.11.n M W I.
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smmml.. n..Im.M mo.u.. M.m,
SYSTEMS -
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still
I n s e r t s
Pure Rain
STORMWATE
TREATMEN
FILTRATION
SYSTEMS
Stormwater BIOCHAR LLC
PHONE
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EMAIL :5CEO—
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B10CHAR:
THE RIGHT BIOCHAR,
THE RIGHT BLEND, DIALED IN.

STOWWATER
TREATMENT
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Stormwater610CHAR
�I
STORMWATER TREATMEN
I
CATCH
BASIN
I n s e r t s
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SLINessfrrme:
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Catch Basin Filter Basket
24"X24"X24"
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StormwaterBIOCHAR.

Catch Basin Insert Options I Stormwater BIOCHAR
http://stormwaterbiochar.com/systems/catch-basin-inseils/catch-bas...
Results of analytical chemistry are presented In the table below.
Results
Result ADsorb-it®
Pollutant
Method it
Result Unfiltered
Detection Limit
Filtered
Oil & Grease
EPA 1664
> 1000
6
5
Total Suspended Solids
EPA 160.2
230
10
5
#2 Diesel Fuel
NWTPHDX
910
3.4
0.2
Motor Oil
NWTPHDX
15000
3
0.4
Arsenic
EPA 6020
ND*
ND*
0.006
Cadmium
EPA 6020
0.0018
ND*
0.0005
Chromium
EPA 6020
0.013
0.0044
0.001
Copper
EPA 6010
0.077
ND'*
0.01
Lead
EPA 6010
0.011
ND*
0.01
Zinc
EPA 6010
2.1
0.85
0.01
*ND = not detected at or above the method detection limit
Conclusions
As can be seen in the table above, ADSORB -it® sorbent was highly effective in removing organic pollutants a
suspended solids from the sample. Especially notable is the reduction in oil and grease, diesel, and motor o
between the filtered and unfiltered samples.
The ADSORB-0 filter fabric lined catch basin is designed to capture pollutants such as sediments, debris,
petroleum hydrocarbons and heavy -metals from stormwater runoff from industrial, commercial and reside
sources.
The uniquely designed hi -flow ADSORB-it0 filtration fabric material allows stormwater to flow through the f
material for extended periods while capturing sediments, oils, oily sheen and oil -borne contaminants. The i
it Stormfilters are designed to hold over 100-lbs of sediment and debris and can be cleaned and reused ma
over.
5 of 7 9/12020, 9:35 AM

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Project No.:
206512
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Drawn By:
PSF
Approved
SIRG
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Former yellow used oil drum containment bin (empty). Used oil drums have been moved inside on containment pallets.
Project No.:
206512
Date:
Sep 2021
Drawn By:
PSF
SRG
Page:
2of6
0 File:
MTB/SW/2021
Ili „•. li � '�,.. Notes:
40.
r.
Liftgate units with galvanized components stored outdoors are suspected source of zinc benchmark exceedance.
PHOTOGRAPHIC LOG: Liftgate Facility Tier 1 Inspection (Zinc) 1417 Trinity Avenue
Mickey Truck Bodies, Inc. High Point, NC, 27260

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Liftgate units with galvanized components stored outdoors are suspected source
of zinc benchmark exceedance.
Project No.:
206512
Date:
Y
Sep 2021
Drawn By:
_
PSF
Approved By:
SRG
Page:
3of6
File:
MTB/SWI2021
Notes:
.0� ✓fig
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Liftgate units with galvanized components stored outdoors are suspected source of zinc benchmark exceedance.
PHOTOGRAPHIC LOG: Liftgate Facility Tier 1 Inspection (Zinc)
1417 Trinity Avenue
Mickey Truck Bodies, Inc.
High Point, INC, 27260

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Liftgate units with galvanized components stored outdoors are suspected source of zinc benchmark exceedance.
Project No.:
206512
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Date:
2021
Drawn By:
PSF
Approved By:
o.>r.
SRG
Page: -
""
4of6
ia
File:
MTB/SW/2021
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Notes:
View of truck parking in separate lot on south side of property. Only two (2) trucks observed had galvanized liftgates installed.
PHOTOGRAPHIC LOG: Liftgate Facility Tier 1 Inspection (Zinc)
417 Trinity Avenue
Mickey Truck Bodies, Inc.
11Figh Point, NC, 27260

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Air compressor and compressed gas storage on west side of liftgate building. Oil water separator is installed to treat air
compressor blowdown. Project No.:
206512
Date:
Sep 2021
Drawn By:
PSF
Approved By:
SRG
O - - Page:
� '.J• �`5of6
File:
f �'•�}"� MTB/SW/2021
F�
Notes:
Oil water separator referenced above.
PHOTOGRAPHIC LOG: Liftgate Facility Tier 1 Inspection (Zinc) 1417 Trinity Avenue
Mickey Truck Bodies, Inc. High Point, NC, 27260

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FW
ZaNL,
All_
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Leaks from trash dumpsters are a potential source of COD, which has been added as a monitoring parameter in the new
Project No.:
General Permit. Drain plugs are missing and should be installed to reduce potential for SW leaching from bins.
206512
Date:
Sep 2021
Drawn By:
PSF
Approved By:
SRG
Page:
6of6
--- - - �- �\
Outfall 001 .
File:
MTB/SW/2021
f Suggested Sarxtpling ;Locatlon'.
Notes:
p. y
Yx !
View of Outfall 1 (in manhole) and suggested sample collection point. Outfall 1 is located in a high traffic area. There is one (1)
additional storm drain between the suggested point and Outfall 1, however there are no industrial activities exposed to SW after
the suggested sampling location.
PHOTOGRAPHIC LOG: Liftgate Facility Tier 1 Inspection (Zinc)
1417 Trinity Avenue
Mickey Truck Bodies, Inc.
High Point, NC, 27260

NC Department f
NCDEQ Division of Energy, Mineral and Land Resources Environmental ` t
Stormwater Discharge Monitoring Report (DMR) Form for NCG030000 Receiver+ Y
Metal Fabrication OCT 28 2021
Click here for instructions
'- WinctOn-S^!em
Complete, sign, scan and submit the DMR via the Stormwater NPDES Permit Data Monitoring Report m within
30 days of receiving sampling results. Mail the original, signed hard copy of the DMR to the appropriate DEMLR ReQiona Office.
Certificate of Coverage No. NCG03 0517
Person Collecting Samples: Josh Soto
Facility Name: Mickey Truck Bodies, Inc.
Laboratory Name: ENCO Laboratories
Facility County: Guilford
Laboratory Cert. No.: 591
Discharge during this period:
Yes
UNo
(if no, skip to signature and date)
Has your facility implemented mandatory Tier response actions this sample period for any benchmark exceedances? Dyes M No
If so, which Tier (I, II, or III)? II
A copy of this DMR has been uploaded electronically via https:Hedocs.deg.nc.gov/Forms/SW-DMR E! Yes No
Date Uploaded:
Analytical Monitoring Requirements for Outfalls with Industrial Activities- Benchmarks in (Red)
Parameter
Parameter
Outfall -,«..—
Outfall om.Lmemo
Outfall
Outfall
Outfall
Code
N/A
Receiving Stream Class
Water Supply
Water Supply
N/A
Date Sample Collected MM/DD/YYYY
09/08/21
09/08/21
46529
24-Hour Rainfall in inches
0.18
0.18
C0530
TSS in mg/L (100 or 50•)
17
13
pH in standard units (6.0-9.0 FW,
00400
6.8-8.5 SW)
6.8
7.3
Copper, total recoverable in mg/L
01119
(0.010 FW, 0.0058 SW)
0.00555
0.00646
Lead, total recoverable in mg/ L
01051
(0.075 FW, 0.22 SW)
<0.00310
<0.00310
Zinc, total recoverable in mg/ L (0.126
01094
FW, 0.09S SW)
0.141
0.320
Chemical Oxygen Demand (COD) in
00340
mg/L (120)
38
32
00552
1Non-Polar Oil & Grease in mg/L (15)
<2.70
<2.70
• 0utfaUs to Outstanding Resource Waters (ORW), High Quality Waters (HQW), Trout Waters (Tr) and Primary Nursery Areas (PNA)
have a benchmark TSS limit of 50 mg/L All other water classifications have a benchmark of 100 mg/L
FW (Freshwater) SW (Saltwater)
Notes (optional):
"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 informatioz including the possibility of fines and imprisonment for knowing violations." �J J � 14 ?/h/
Signature of Permittee or Delegated Authorized Individual Date
rn5il1K@ miche✓dddte./om 336 $ -��a✓�
Email Address f Phone Number

Mickey Truck Bodies
Summary of Stormwater Results
Stormwater Outfall
Date
Collected
o
E~
U
O v
b
u
mg/L
mg/L
mg/L
mg/L
mg/L
Main Plant - 001
129/2014
14
0.00744
0.0026
1.89
2.43
6.4
2/102014
12
0.00957
0.0024
0.635
1.81
5.63
3/122014
47
0.0141
0.0073
0.762
<1.60
5.98
4/302014
3.2
0.00731
<0.0021
1.4
2.1
5/152014
I50
0.0194
0.0134
0.496
<1.60
6.15
7/152014
22
0.00441
0.0022
0.132
2.83
6.71
12/162014
15
0.00767
0.0021
0.392
3.99
6.78
6/302015
160
0.042
0.03
1.28
<3.15
7.17
Fall 2015
No discharge
1/52016
17
0.00562
<0.0031
0.165
<2.70
7.3
8/32016
47
0.01290
0.0085
0.108
<2.70
7.3
3/102017
44
0.00725
0.00305
0.247
<2.70
9.1
7/182017
98
0.02570
0.00814
0.802
12.9
7.3
4/42018
20
0.0148
0.00349
0.73
3.49
6.5
10/182018
14
<0.00160
<0.00310
0.205
12.8
7
2272019
23
0.00534
<0.00310
0.186
<2.70
7.2
10/302019
57
0.00774
<0.00310
0.15
12
7.2
4202020
14
0.00370
<0.00310
0.0866
<2.70
7.8
10282020
5.2
0.00453
<0.00310
0.156
<2.70
6.8
5/32021
<25
0.00393
<0.00310
0.132
<2.70
7.2
9/82021
17
1 0,00555
1 <0.00310
1 0.141
<2.70
1 38
6.8
Lifgete. - 001
4/42018
No Discharge
10/18/2018
9.4
0.00570
<0.00310
0.0858
5.75
7
2272019
18
0.00219
<0.00310
0.101
<2.70
6.8
10/302019
9.1
<0.00160
<0.00310
0.0191
7.02
7.2
4/202020
3.8
0.00203
<0.00310
0.0543
5.85
7.2
10/282020
180
0.00818
<0.00310
0.112
15.8
7.2
5/32021
16
0.00620
1 <0.00310
0.159
<2.70
1
7.6
9/82021
]3
0.00646
<0.00310
1 0.320
<2.70
32
7.3
Permit Benchmark
100
0.010
0.075
1 0.126
15
120 1
6-9

.01 NCO Laboratories
Accurate. imety, Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Tuesday, September 21, 2021
Leaf Environmental, Inc. (BE012)
Attn: Tim Monroe
PO BOX 14609
RTP, NC 27709-
RE: Laboratory Results for
Project Number: 206512, Project Name/Desc: 206512
ENCO Workorder(s): CE10019
Dear Tim Monroe,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Friday, September 10, 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,
Chuck Smith
Project Manager
Enclosure(s)
RN& Thls report relates only to the sample as received by me labonstory, and may only be reproduced In full. Page I of 9

Nik"
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SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: Outfall 001- Main Plant
Lab ID: CE10019-01
Sampled: 09/08/21 09:26
Received: 09/10/21 16:55
parameter
Preparation
Hold Date/Time(s)
Prep Date/Timefs)
Analysis Date/Time(s)
EPA 1664E
EPA 1664E
10/06/21
09/20/21 10:35
09/21/21 08:46
EPA 200.7
EPA 3005A
03/07/22
09/13/21 08:06
09/15/21 10:07
SM 254OD-2011
NO PREP
09/15/21
09/15/21 06:10
09/15/21 06:10
SM 5220D-2011
Same
10/06/21
09/17/21 09:41
09/17/21 15:58
Client ID: Outfall 001- Liftgate
Lab ID: CE10019-02
Sampled: 09/08/21 09:31
Received: 09/10/21 16:SS
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 1664E
EPA 1664E
10/06/21
09/20/21 10:35
09/21/21 08:46
EPA 200.7
EPA 3005A
03/07/22
09/13/21 08:06
09/15/21 10:09
SM 2544D-2011
NO PREP
09/15/21
09/15/21 06:10
09/15/21 06:10
SM 522OD-2011
Same
10/06/21
09/17/21 09:41
09/17/21 15:58
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 9

- r-- -
G(9
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SAMPLE DETECTION SUMMARY
Client ID: Outfall 001- Main Plant
Lab ID:
CE10019-01
Anal a
Results
Flaa
MDL
POL
Units
Method Notes
Chemical Oxygen Demand
38
10
10
mg/L
SM 5220D-2011
Copper - Total
5.55
1
1.60
10.0
ug/L
EPA 200.7
Total Suspended Solids
17
4.5
4.5
mg/L
SM 254OD-2011
Zinc - Total
141
4.40
10.0
ug/L
EPA 200.7
Client ID: Outfall 001- Liftgate
Lab ID:
CE10019-02
Analyte
Results
Flaa
MDL
Q
Units
Me_ thud Notes
Chemical Oxygen Demand
32
10
10
mg/L
SM 522OD-2011
Copper - Total
6.46
1
1.60
10.0
ug/L
EPA 200.7
Total Suspended Solids
13
5.3
5.3
mg/L
SM 254OD-2011
Zinc - Total
320
4.40
10.0
ug/L
EPA 200.7
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced In full. Page 3 of 9

CM0
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ANALYTICAL RESULTS
Description: Outfall C01- Main Plant Lab Sample ID:CE10019-01 Received: 09/10/21 16:55
Matrix: Surface Water Sampled:09/08/2109:26 Work Order: CE10019
Project: 206512 Sampled By:Joshua Soto
Metals by EPA 200 Series Methods
A - ENCO Cary aertlfied analyle [NC S91]
AnalAc rCAS Numberl Results
FlaFlaq
Units
DF
MD_L
!Q
Batch
Method
Analyzed
ft Notes
Copper [7440-50-B]A 5.55
J
ug/L
1
1.60
10.0
1I13003
EPA 200.7
09/15/21 10:07
JDH
Lead [7439-92-1]A 3.10
U
ug/L
1
3.10
10.0
1113003
EPA 200.7
09/15/21 10:07
JDH
Zinc [7440-66-6]A 141
ug/L
1
4.40
10.0
1I13003
EPA 200.7
09/15/21 10:07
JDH
Classical Chemistry Parameters
A - SWO Cary certilled analyte [NC 5911
Analyte rCAS Numberl Results
Flaa
Units
DF
MDL
PQL,
Batch
Method
Analyzed
AM Notes
Chemical Oxygen DemandA 38
mg/L
1
10
10
1I17007
SM 5220D-2011
09/17/21 15:58
JOC
Total Suspended SolidsA 17
mg/L
1.82
4.5
4.5
1I15002
SM 254OD-2011
09115/2106:10
ZGW
Classical Chemistry Parameters
- ENCU Jacksonville certified anayte [NC 442]
Analyte rCAS Numberl Results
Flag
Units
DF
MDL
Mh
Batch
Method
Analyzed
Ay Notes
Oil & Grease (HEM-SGT) Non -Polar 2.70
U
mg/L
1
2.70
5.00
1I20001
EPA 1664E
09/21/2108:46
ITS
Description: Outfall 001- Liftgate Lab Sample ID:CE10019-02 Received: 09/10/21 16:55
Matrix: Surface Water Sampled:09/08/2109:31 Work Order: CE10019
Project: 206512 Sampled By:]oshua Soto
Metals by EPA 200 Series Methods
- ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl Results Inca
Units
DF
MDL
POIL
Batch
Method
Analyzed
By Notes
Copper [7440-50-8]A 6.46 J
ug/L
1
1.60
10.0
1I13003
EPA 200.7
09/15/21 10:09
JDH
Lead [7439-92-1]A 3.10 U
ug/L
1
3.10
10.0
1I13003
EPA 200.7
09/15/21 10:09
JDH
Zinc [7440-66-6]A 320
ug/L
1
4.40
10.0
1I13003
EPA 200.7
09/15/21 10:09
JDH
Classical Chemistry Parameters
A - ENCO CaryCeriified analyte [NC 591]
Analyte rCAS Numberl Results Flaa
Units
DF
MIX
P-Q_L-
Batch
Method
Analyzed
By Notes
Chemical,Oxygen Demand^ 32
mg/L
1
10
10
1I17007
SM 5220D-2011
09/17/21 15:58
30C
Total Suspended SolidsA 13
mg/L
2.13
5.3
5.3
1I15002
SM 254OD-2011
09/15/2106:10
ZGW
Classical Chemistry Parameters
A - ENCO Jacksonville certified analyte [NC 442]
Analyte rCAS Numberl Results Flaa
Units
AF
MAC
,PQL-
Batch
Method
Analyzed
P1 Notes
Oil & Grease (HEM-SGT) Non -Polar 2.70 U
mg/L
1
2.70
5.00
1I20001
EPA 1664E
09/21/2108:46
ITS
Material^
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced In full. Page 4 of 9

C
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QUALITY CONTROL DATA
Metals by EPA 200 Series Methods - Quality Control
Batch 1113003 - EPA 3005A
Blank (1I13003-BLKI)
Prepared: 09/13/202108:06 Analyzed: 09/15/202109:20
Spike Source %REC
RPD
Analvte
Resul
Elm
M&
Units
Level Result %REC Limits RPD
Limit
Notes
Copper
1.60
U
10.0
ug/L
Lead
3.10
U
10.0
ug/L
Zinc
4.40
U
10.0
ug/L
Blank (1I13003-BLK2)
Prepared: 09/13/202108:06 Analyzed: 09/15/202109:28
Spike Source %REC
RPD
A0aly
Result
Flag
PQL
Units
Level Resul %REC Limits RPD
Limit
Notes
Copper
1.60
U
10.0
ug/L
Lead
3.10
U
10.0
ug/L
Zinc
4.40
U
10.0
ug/L
LCS (1I13003-BSI)
Prepared: 09/13/202108:06 Analyzed: 09/15/2021 09:36
Spike Source %REC
RPD
Analy
Result
Elm
M
units
Level Resul %REC Limits RPD
limit
Notes
Copper
193
10.0
ug/L
200 96 85-115
Lead
195
10.0
ug/L
200 97 85-115
Zinc
202
10.0
ug/L
200 101 85-115
Matrix Spike (1I13003-MS1)
Prepared: 09/13/202108:06 Analyzed: 09/15/202109:39
Source: CE11095-01
Spike Source %REC
RPD
Analy
Result
FJaa
EM
Units
Level Result %REC Limits RPD
Limit
Notes
Copper
195
10.0
ug/L
200 1.60 U 98 70-130
Lead
200
10.0
ug/L
200 3.10 U .100 70-130
Zinc
364
10.0
ug/L
200 164 100 70-130
Matrix Spike (1I13003-MS2)
Prepared: 09/13/202108:06 Analyzed: 09/15/202109:52
Source: CE11075-01
Spike Source %REC
RPD
Analvte
Result
Flag
ML
Units
Level Result %REC Limits RPD
Limit
Notes
Copper
194
10.0
ug/L
200 1.60 U 97 70-130
Lead
197
10.0
ug/L
200 3.10 U 99 70-130
Zinc
248
10.0
ug/L
200 42.9 102 70-130
Matrix Spike Dup (1I13003-MSD1)
Prepared: 09/13/202108:06 Analyzed: 09/15/2021 09:42
Source: CE11095-01
Spike Source %REC
RPD
Analvte
Result
E169
EQL
Units
Level Result %REC Limits RPD
limit
Notes
Copper
194
10.0
ug/L
200 1.60 U 97 70-130 0.5
30
Lead
201
10.0
ug/L
200 3.10 U 100 70-130 0.2
30
Zinc
354
10.0
ug/L
200 164 95 70-130 3
30
Post Spike (1I13003-PS1)
Prepared: 09/13/202108:06 Analyzed: 09/15/2021 09:44
Source: CE11095-01
Spike Source %REC
RPD
Analvte
Result
Flan
M
Units
Level Result %REC Limits RPD
Limit
Notes
Copper
0.199
0.0100
mg/L
0.200-0.00270 100 80-120
Lead
0.206
0.0100
mg/L
0.200-0.000250 103 80-120
Zinc
0.368
0.0100
mg/L
0.200 0.164 102 80-120
Classical Chemistry Parameters - Quality Control
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced In full.
Page 5 of 9

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1. QUALITY CONTROL DATA
Classical Chemistry Parameters - Quality Control
Batch 1115002 - NO PREP
Blank (II15002-BLKi)
Prepared & Analyzed: 09/15/202106:10
Spike Source %REC
RPD
Anaivte
Result
Elsa
MI.
l nits
Level Resul %REC Limits RPD
limit
Notes
Total Suspended Solids
2.5
Ll
2.5
mg/L
LCS (1I15002-BS1)
Prepared & Analyzed: 09/15/202106:10
Spike Source %REC
RPD
Analvte
Result
Elm
E"
Units
Level Result %REC Limits RPD
limit
Notes
Total Suspended Solids
93
2.5
mg/L
100 93 80-120
Duplicate (1I15002-DUP1)
Prepared & Analyzed: 09/15/202106:10
Source: CE13262-02
Spike Source %REC
RPD
Analvte
Result
Flip
PS?!,
Units
Level Result %REC Limits RPD
Limit
Notes
Total Suspended Solids
120
12
mg/L
120 3
20
Duplicate (1I15002-DUP2)
Prepared & Analyzed: 09/15/202106:10
Source: CE13337-01
Spike Source %REC
RPD
Analvte
Result
Elm
EQL
Units
Level Resui %REC Limits RPD
Liam
Notes
Total Suspended Solids
710
50
mg/L
630 12
20
Batch .1I17007 - Same
Blank (1I17007-BLKi)
Prepared: 09/17/202109:41 Analyzed: 09/17/2021 15:58
Spike Source %REC
RPD
Anal
Result
Elm
EM
Units
Level Result %REC Limits RPD
Limit
Notes
Chemical Oxygen Demand
10
U
10
mg/L
LCS (1I17007-BSI)
Prepared: 09/17/202109:41 Analyzed: 09/17/2021 15:58
Spike Source %REC
RPD
Analvte
Result
Elea
ES2L
units
Level Result %REC Limits RPD
Limit
Notes
Chemical Oxygen Demand
510
10
mg/L
500 102 90-110
Matrix Spike (1I17007-MS1)
Prepared: 09/17/202109:41 Analyzed: 09/17/2021 15:58
Source: CE13495-02
Spike Source %REC
RPD
Analvte
Result
flag
M
Units
Level Result %REC Limits RPD
Limit
Notes
Chemical Oxygen Demand
570
10
mg/L
526 27 103 90-110
Matrix Spike (1I17007-MS2)
Prepared: 09/17/2021 11:50 Analyzed: 09/17/2021 15:58
Source: CE14001-23
Spike Source %REC
RPD
Analvte
Result
flag
EGG
Units
Level Resui %REC Limits RPD
Limit
Notes
Chemical Oxygen Demand
570
10
mg/L
526 25 104 90-110
Matrix Spike Dup (1I17007-MSD1)
Prepared: 09/17/202109:41 Analyzed: 09/17/2021 15:58
Source: CE13495-02
Spike Source %REC
RPD
Ana Yte
Result
Flao
M
Units
Level Resul %REC Limill RPD
limit
Notes
Chemical Oxygen Demand
580
10
mg/L
526 27 104 90-110 0.8
5
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 9

ce
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QUALITY CONTROL DATA
Classical Chemistry Parameters - Quality Control
Batch M7007 - Same - Continued
Matrix Spike Dup (1I17007-MSD2)
Prepared: 09/17/2021 11:50 Analyzed: 09/17/2021 15:58
Source: CE14001-23
Spike Source %REC
RPD
Analyte
Result
flag
PQL
Units
Level Result %REC Limits RPD
Limit Notes
Chemical Oxygen Demand
560
10
mg/L
526 25 101 90-110 2
5
Classical Chemistry Parameters - Quality Control
Batch 1120001- EPA 1664E
Blank (1I201301-BLKI)
Prepared: 09/20/2021 10:35 Analyzed: 09/21/202108:46
Spike Source %REC
RPD
Analvte
Result
flau
ML
Units
Level Result %REC Limits RPD
Limit Notes
Oil & Grease (HEM-SGT) Non -Polar Material
2.70
U
5.00
mg/L
LCS (1120001-BSI)
Prepared: 09/20/2021 10:35 Analyzed: 09/21/202108:46
Spike Source %REC
RPD
Analvte
Resul#
Elm
MI.
Units
Level Result %REC Limits RPD
Limit Notes
Oil & Grease (HEM-SGT) Non -Polar Material
84.2
5.00
mg/L
79.1 106 64-132
LCS Dup (1I20001-BSD1)
Prepared: 09/?0/2021 10:35 Analyzed: 09/21/202108:46
Spike Source %REC
RPD
Analvte
Result
Flag
EQL
UJnits
Level Result %REC Limits RPD
Limit Notes
Oil & Grease (HEM-SGT) Non -Polar Material
90.9
5.00
mg/L
79.4 114 64-132 8
34
Matrix Spike (1I20001-MSI)
Prepared: 09/20/2021 10:35 Analyzed: 09/21/202108:46
Source: BE02447-01
Spike Source %REC
RPD
Analvte
Result
F1a9
E"
Units
Level Result %REC Limits RPD
Limit Notes
Oil & Grease (HEM-SGT) Non -Polar Material
83.3
5.00
mg/L
74.1 2.70 U 112 64-132
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced In full. Page 7 of 9

Ct''a
www.encolabs.com
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.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced In full. Page 8 of 9

ENVIRONMENTAL CONSERVATION LABORATORIES CHAIN -OF -CUSTODY RECORD www.encolabs.com
® 10775 Central Part Dr. 4810 Exec(twe Parke Courl Sulte 111 102-A Woodwinds Industriai•Ct.
Orlando; FL32824 Jacksonm1lo. FL 32215-6069 Cary, NC 27571
(407)•826-5314 (904) 296.3W Fax (904) 29"210 (919) 4673090 ' Fax'[phone] Page Of
Client -Name Project Number Requested -Analyses -Requested Turnaround
Leaf EnAmnmental, Inc. (BE012) 2M12 Times
Address Project'Name/Dese Note: Rush requests subject to
PO BOX-14609 2M12 acceptance by the racil-ey
CityJS'a/Zip P0.0J.B11Eing-In(6, �.
RTP, NC 27M9- 2M12 Standard
Tel Fax Reporting Contact
(919) 484-85136 j - Tim Monroe 04 Expedited
Sampler(s) Name. Afhliation-(Prinl)' Bitting Contact N ( � ' �� •
Tim Monme Duea.
!_1
Samptsrls) Signature Site Location / Tune Zone Lab Workorder
Preservation (See Caries) (Combine as necessary) CE 10019
Collection Matrix. Tofal`0•of
Item 0 Sample ID (Field Idenlificabop) Collectlon Date Time Comp/ Grab (see.codes) Containers Sample'Comments
utlWI'001- Main Plant 1 '' d V cslfd� SW X X X -Y, he Atin
ut W 001-Lift to ' .,�� �! 1 'a,�, -r�c�� SW X X X r7a r S r
<— Totai #•.of Containers
Sample Kit Prepared By.
2n
Datal 1
14 U_'
Rot u ed y
'Dat ime•
QWA
Received By
Date/rme
CommentslSpeciai Reporting Requ nts
Relinqui ed By
DatelTime
RecaV yDdteMme
Relinquished By
Datelilme
d By
Da (.f me
Cooler ft &Temps an Recejpt �►
V o�-� 4
lCondillon.1.1pon.RWelpf
Acceptable Unacceptable
Matrix'. GW-Groundwater SO -Sall OW -Drinking Water SE3edlmanl SW-Surface.Water W W-Wastmvaler A -Air- 0-Other (detail in comments) Preservation: Wce H•HCI N-HNO3. S•H2SO4 NO=NaOH O-Other (detail to comments)
Nola: All samples submitted to ENCO Labs are in accordance with•the terms and conditions listed on the reverse of this form; unless prior written agreements midst

Sample Preservation Verification
ENCO Cary
Work Order: CE10019
Client: Leaf Environmental, Inc. (BE012)
Project: 206512
Project #: 206512
Logged in: 10-Sep-21 16:57 Logged By: Rachel Ann Y nish `
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Page 1 of 1

Products I North Carolina State Climate Office
.# Cardinal: i'i Station Scout > 314063 - High Point
Current Conditions Fig ` Station Information G Data Availability Recent Data -J
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Need data over a longer or historical period? Request it from Cardinal.
Select a Parameter x Clear Plot L Update Plot (1 selected)
: Air Temperature
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High Point
tin_.. ...... ...
E
;2 0,75in
N
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0.5in
a.
Sep a
• Tgtg�Pdecipitetion (1 m): 0.181n
oin_.Sof12d Sop 30 Oct.. L.
Sep a Sep p 10 Sep 12 Sep 14 Sun 16 Sep 1E Sep 20 Sep 22 24 Sep 26 t 2 Oct 4 Oct 6 Oct a
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NC STATE UNIVERSITY
NORTH CAROLINA STATE UNIVERSITY
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Patrick Fallon
From:
Josh Soto <[e-mail]>
Sent:
Monday, October 18, 2021 6:41 AM
To:
Patrick Fallon
Cc:
Steven Gerrald
Subject:
RE: Stormwater pH Results from 9/8/21
Just getting back from my mission trip, so sorryfor the delay in this response. Main Campus sample came in at 6.8 and
the Lift Gate plant came in at 7.3. Please let me know if you need anything else.
Joshua Soto
EHS Manager
_—
M/CKEY 1305 Trinity Avenue I High Point, NC 27260
"IM Direct: 336.888.2282 1 Cell336.302.0498 I [e-mail]
rgUCX BOD/ES 0 0 ® 0
Mickevbody.com
From: Patrick Fallon <[e-mail]>
Sent: Tuesday, October 12, 2021 10:12 AM
To: Josh Soto <[e-mail]>
Cc: Steven Gerrald <[e-mail]>
Subject: Stormwater pH Results from 9/8/21
Hey Josh,
Do you have the pH results from when you collected stormwater samples on September 81h?
Thanks
Patrick Fallon
Environmental Technician
Leaf Environmental & Engineering, PC
[e-mail]
Office: [phone]
Fax: [phone]
Mobile: [phone]
Leaf Environmental & Engineering, P.C.

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