NCG090004_DMR_20210408

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG090000
Date submitted Apn18,2021
CERTIFICATE OF COVERAGE NO. NCGO9 O O 0 4
FACILITY NAME The Sherwin-Williams Manufactunng Company
COUNTY Guilford
PERSON COLLECTING SAMPLES Nicole Sweet
LABORATORY Pace Analytical Lab Cert. # 40, 37712
Comments on sample collection or analysis:
N/A
Part A: Stormwater Benchmarks and Monitoring Results
SAMPLE COLLECTION YEAR 2021
SAMPLE PERIOD ❑■ Jan -June ❑ July -Dec
or ❑ Monthly' (month)
t�1
ARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
i�FR 9 2021 *Other WS-m; NSW
✓rpS l l r nI Oi'1 PLEASE REMEMBER TO SIGN ON THE REVERSE
Li1flYY .>�C
Total event rainfall' 0.51" n No discharge this period?'
Outfall No.
Date Sample Collected'
(mo/dd/yr)
Total Cadmium°,
mg/L
Chromium III, Total
Recoverable,
mg/Benchmarks
Total Lead,
mg/L
pH,
Standard Units
Total Suspended Solids°,
mg/L
_
0.003 or 0.002
0.905
0.075
6.0-9.0
100 or 50
Parameter Code
_
01027
C0034
01051
00400
C0530
SDO01
03/26/2021
<0.001
<0.005
<0.005
7.4
10.4
SDO02
04/20/2020
<0.001
<0.005
1 <0.005
1 6.4
1 10.3
SDO03
04/20/2020
1 <0.001
<0.005
<0-005
6.6
7.1
' Monthly sampling (instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall.
' Far sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring reportwith a checkmark here.
'The 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 requirement.
'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. Do not report Below Detection Limit, BOIL, <PQL, Non -detect, NO, 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, 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: 11/1/2018-05/31/2021 SWU-255, last revised 11/1/2012
Page 1 of 2

Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 55 gal of new oil per month.
n No discharge this period ?z
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches3
Non -polar Oil and
Grease,
mg/L
Total Suspended Solids'
mg/L
New Motor or
Hydraulic Oil
Usage,
gal/mo
Benchmarks
_
-
15
100 or 504
-
Parameter Code
-
46529
00552
COS30
NCOIL
N/A
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 rer 3 responses. See General Permit text.
FOR PART A AND PART B MONITORING RESULTS:
a A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART II SECTION B.
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS. SEE PERMIT PART II SECTION B.
• TIER 3: HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO Q
IF YES, HAVE YOU CONTACTED THE DEMLR REGIONAL OFFICE? YES Q NO Q
REGIONAL OFFICE CONTACT NAME:
Mail an original copy of this DMR, including all "No Discharge" reports, within 30 days of receipt of the lab results for at end of monitoring period in the
case of "No Discharge" reports) to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED:
N 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."
r"r
Signature of Permittee
Permit Date: 11/1/2018-05/31/2021
-4'1
Date
SWU-255, last revised 11/1/2012
Page 2 of 2

1
Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance onfilling out thisform, please visit https:Hdeq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: N/C/Cj/O/ F/0/O/ o/ O/ or Certificate of Coverage No.: N/C/G/0/9/0/O /O /-f/
Facility Name: •6�A tc-" n — W i I 1 % nir ns
County: jt3U
No. 33b-550—I 62-q
Inspector: &V i Chu 6r.<tk*
Date of Inspection:
Time of Inspection:
oam
Total Event Precipitation (inches): l - a ! I
All permits require qualitative monitoring to be performed during a "measurable storm event"
A "measurable storm event" is a storm event that results in an actual discharge from 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 DEMLR
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)
1. Outfall Description:
Outfall No. 74)jW L Structure (pipe, ditch, etc.):
Receiving Stream:
HDjse. j�e v, Gre e�K
Describe the industrial activities that occur within the outfall drainage area:
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SWU-242, Last modified 06/01/2018

2. Color: Describe the color of the
(light, medium, dark) as descriptors: -_-c
using basic colors (red, brown, blue, etc.) and tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.):
up od'ov-
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:
1 0 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:
V 2 3 4 5
7. Is there any foam in the stormwater discharge? Q Yes XNo.
8.
9.
Is there an oil sheen in the stormwater discharge? QYes 'A No.
Is there evidence of erosion or deposition at the outfall? Q Yes X No.
10. Other 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.
Page 2 of 2
SWU-242, Last modified 06/01/2018

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit https:Hdeq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: NICICjI0 l9 I0 /o /0 /o / or Certificate of Coverage No.: NIC/G/Ol9 /0 /0/0 l�l
Facility Name: ImArwi e,— w I n V15
County: ,l� Lr, Phone No.
Inspector:
Date of Inspection:
Time of Inspection: r7• 4 0 &---r-ly)
Total Event Precipitation (inches): I. e3q
All permits require qualitative monitoring to be performed during a "measurable storm event."
A `measurable storm event" is a storm event that results in an actual discharge from 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 DEMLR
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)
1. Outfall Description:
Outfall No. S00 Z Structure (pipe, ditch, etc.):
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
—fit- 4- COLL nIX�N
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2. Color: Describe the color of the discharge A
ing basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: 1.1 !A
3. Odor: Describe any distinct odors that the
chlorine odor, etc.): 0 D 1
may have (i.e., smells strongly of oil, weak
4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
1 V 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:
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:
B 2 3 4 5
7. Is there any foam in the stormwater discharge? Q Yes No.
8.
9.
Is there an oil sheen in the stormwater discharge? QYes �No.
Is there evidence of erosion or deposition at the outfall? Q Yes KNO.
10. Other 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.
Page 2 of 2
SWU-242, Last modified 06/01/2018

Envlronmenral
Quallty
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit https:Hdeq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: N/C/Cj / 0 /q /O /O /O /O / or Certificate of Coverage No.: N_/C/G/ Q /q / 0 / 01041
Facility Name: She f' fin— WI wams
County: 6W IA9rd Phone No.
�
Inspector: N-1Wt&1OYqetk-
Date of Inspection:
Time of Inspection:
Total Event Precipitation (inches):
All permits require qualitative monitoring to be performed during a "measurable storm event."
A "measurable storm event" is a storm event that results in an actual discharge from 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 DEMLR
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)
1. Outfall Description:
Outfall No. SDI603 Structure (pipe, ditch, etc.):;
Receiving Stream:
Po ��e, Q,v� �c-�+✓i�
Describe the industrial activities that occur within_ the outfall drainage area:
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SWU-242, Last modified 06/0112QI8

i
2. Color: Describe the color of the discharge
(light, medium, dark) as descriptors:
ing basic colors (red, brown, blue, etc.) and tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.):
4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
10 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:
1 Q
3.. 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where I is no solids and 5 is extremely muddy:
1� 2 3 4 5
7.
8.
9.
Is there any foam in the stormwater discharge? Q Yes No.
Is there an oil sheen in the stormwater discharge? QYes '�(No.
Is there evidence of erosion or deposition at the outfall? Q Yes I NO.
10. Other 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.
Page 2 of 2
SAT-242, Last modified 06/01/2018