NCG090004_DMR_20220330

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG090000
Date submitted March 30,2022
CERTIFICATE OF COVERAGE NO. NCG09 0 0 0 4 SAMPLE COLLECTION YEAR 2022
FACILITY NAME The Sherwin-Williams Manufacturing Company SAMPLE PERIOD 0 Jan-June ❑July-Dec
COUNTY Guilford or ❑ Monthly' (month)
PERSON COLLECTING SAMPLES Nicole Sweet DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY Pace Analytical Lab Cert.# ao,377fz ❑
RECEIVED zero-flow ❑watersupply ❑SA
Comments on sample collection or analysis:
Mother WS-III;NSW
N/A APR 04- 2022
PLEASE REMEMBER TO SIGN ON THE REVERSE 4
CENTRAL FILES
Part A: Stormwater Benchmarks and Monitoring Results DWR SECTION
Total event rainfall 3 0.67- ❑ No discharge this period?'
Date Sample Collected' Total Cadmium4, Chromium III,Total Total Lead, pH, Total Suspended Solide4,
Outfall No. Recoverable,
(mo/rid/yr) mg/L mg/L mg/L Standard Units mg/L
Benchmarks 0.003 or 0.002 0.905 0.075 6.0-9.0 100 or 50
Parameter Code - 01027 00034 01051 00400 C0530
SDO01 03/09/2022 <0.001 1.7 1.4 6.6 17.0
SDO02 02/23/2022 <0.001 <0.005 <0.005 6.3 21.8
SDO03 02/23/2022 <0.001 <0.005 1 <0.005 6.1 1 ND
t Monthly sampling(instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall.
'For sampling periods with no discharge at any single outfall,you must still submit this discharge monitoring report with a checkmark here.
3The 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.
4See 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, BDL,<PQL, Non-detect, ND,or other similar non-numerical
format. When results are below the applicable limits,they must be reported in the format, "<XX ms/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.
❑ No discharge this period?'
Date Sample 24-hour rainfall Non-polar Oil and New Motor or
Outfall No. Collected' amount, Grease, Total Suspended Solids Hydraulic Oil
(mo/dd/yr) Inches' mg/L mg/L Usage,
gal/mo
Benchmarks - - 15 100 or 504 Parameter Code - 46529 00552 CO530 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 Tier 3 responses. See General Permit text.
FOR PART AND PART B MONITORING RESULTS:
A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART II SECTION B.
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER ATTHE SAME OUTFALLTRIGGER 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 ANY ONE OUTFALL? YES ❑ NO 0
IF YES, HAVE YOU CONTACTED THE DEMLR REGIONAL OFFICE? YES ❑ NO ❑
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:
"I 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."
sigri4 re of Permittee Date "
Permit Date: 11/1/2018-05/31/2021 SWU-255, last revised 11/1/2012
Page 2 of 2

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.: N/C/i�/O/Q/O/o/o/O/ or Certificate of Coverage No.: N/C/G/0/9/O/O /O/-f/
Facility Name: t
County: ,r Phone No. 33ki-5SO-1162-q
Inspector: N i (a G V1l40
Date of Inspection: 3 j 1(7jS07iZ
Time of Inspection: 20 rQK 1
Total Event Precipitation(inches): U 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 stone 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, 1 certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
OutfalI No. SNUNL Structure(pipe,ditch,etc.): Ri pc,
Receiving Stream:
Norse. pfjv % Lt-e e*
Describe the industrial activities that occur within the outfall drainage area:
20LI r%* a- Q fN[]-Aiv\a_t- M&4%4A fQ&-k V ij
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S WU-242,Last modified 06/01/2018

v
2. Color: Describe the color of the di charge sing basic colors(red, brown, blue,etc.)and tint
(light,medium, dark)as descriptors:
3. Odor: Describe any distinct odo s 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:
1 02 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge,where I is no solids and 5 is the surface covered with floating solids:
1 ® 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:
-10 2 3 4 5
7. Is there any foam in the stormwater discharge? p Yes 4N
S. Is there an oil sheen in the stormwater discharge? VYes *NO.
9. Is there evidence of erosion or deposition at the outfall? 0 Yes 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

Envtronmertta7
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance onftlling out this form,please visit https://deq.nc.govlabout/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: L41cAC
j1O1q1o1olt)1c)1 or Certificate of Coverage No.: N/C/G/O/q l0/O/O/4
Facility Name: S k Orwj e — 1 1 a rylS'
County:6L,b _1:6r-64I Phone No.
Inspector: I Y r4
Date of Inspection: alas 22
Time of Inspection: lr-
Total Event Precipitation(inches 0 ,
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:
is
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. SDOlbZ Structure(pipe, ditch, etc.): I�jloe,
Receiving Stream:
Rw Lre�.k
Describe the industrial activities that occur within the outfall drainage area:
Qtx tit �- CaorAl cop ►�1/xrw��Qf�h t ri nst
Page I of 2
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e
2. Color: Describe the color of the discharge using basic colors(red,brown,blue,etc.)and tint
(light,medium,dark)as descriptors:
3. Odor: Describe any distinct odors that the discharge ay have(i.e.,smells strongly of oil,weak
chlorine odor,etc.): ND Q
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 0J 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:
1J 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:
0 2 3 4 5
7. Is there any foam in the stormwater discharge? 0 Yes ) ,No.
8. Is there an oil sheen in the stormwater discharge? QYes KNO.
9. Is there evidence of erosion or deposition at the outfall? se,?Yes $vNo.
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

KC
Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out thisform,please visit https://deq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: N/C/0/0/9/0 /O/O/O l or Certificate of Coverage No.: N/C/G/O IQ IO IO1041
Facility Name: She W YA-% Wi U. aWl's
County: ftwip Jr Phone No. '33(0- 55z—/ PZ4
Inspector: W I M SIA i'P
Date of Inspection:
Time of Inspection: Q o am
Total Event Precipitation(inches): D' (P-7
j All permits require qualitative monitoring to be performed during a"measurable storm event."
A "measurable storm event" is a stone 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. SDOO 3 Structure(pipe,ditch, etc.): t'I p Q.-
Receiving Stream:
AOrS-e, 9tAn Cf-e& -
Describe the industrial activities that occur within the�ou_tfall drainage area:
R — C�crktl v� 1 r Gt�l��'1✓�
Pagel of2
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2. Color: Describe the color of the discharge using basic colors(red,brown,blue,etc.)and tint
(light,medium, dark)as descriptors:
3. Odor: Describe any distinct odors that the disch rge 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 1 is clear
and 5 is very cloudy:
1 9) . 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 V 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:
2 3 4 5
7. Is there any foam in the stormwater discharge? Q Yes No.
8. Is there an oil sheen in the stormwater discharge? QYes ANo.
9. Is there evidence of erosion or deposition at the outfall? 0 Yes 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