NCG020330_2021 DMR_20210716 (2)

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT (DMR) — STORMWATER
14 SUBMIT TO CENTRAL OFFICE*
General Permit No. NCG020000
Calendar Year 2021
'Report ALL STORMWATER monitoring data on this form (include "No Flow'/"No Discharge" and Benchmark
Exceedances) from the previous calendar year to the DEO by MARCH 1 of each year.
Certificate of Coverage No. NCG02
Facility Name: 3M Pittsboro
County: Chatham
Phone Number: 9( 19 ) 642-400s
Certified Laboratory Pace Labs
Lab # 633
Lab # 12
Total no. of SDOs monitored 4
Stormwater Discharge Outfail (SDO) No. 002 VMA Outfaii? Yes ❑ No M✓
Is this outfall currently in Tier 2 for any parameter? Yes ❑ No ✓P1
Was this outfall ever in Tier 2 during the past year? Yes No ✓[]
If this outfall was in Tier 2 last year, was monthly monitoring discontinued?
Yes, enough consecutive samples below benchmarks to decrease frequency [l
Yes, received approval from DEMLR to reduce monitoring frequency 11
No, turbidity benchmark exceedances did not require monthly monitoring El
Other r_1
Outfall No.
002
Benchmarks
Date Sample
Collected,
mo/dd/ r
Total
Rainfall,
inches
Indicate NO
FLOW"
• icable
TSS
mg/I
Benchmark chmark
100/50
SS
mill
0.1
Turbidity,
y
NTU
CI,Ck chmark
Ben
50/25/10
Upstream
(U) Turbidity,
NTU
N/A
"''" Quality
Standard appkn
Downstream
(D) Turbidity,
NTU
N/A
""•r °oa"ry
Standard applies
Non -polar
O&G, mg/l
(VMA)
15
New
Motor Oil
Usage
al/mo.
>55 paUmo.
awnpa requires
TSs and Non-9olar
O&G monitor!
06/20/2021
1.35
24.3
ND
30.7
N/A
N/A
N/A
N/A
Permit Date 10/112015 — 9/30/2020
Last Revised 10-2-2015

Certificate of Coverage No. N0002 [0] 3313[I®
Additional Outfall Attachment (make copies as needed for additional outfalis)
Stormwater Discharge Outfall (SDO) No. 004 VMA Outfall?
Yes ❑ No ❑✓
Is this outfall currently In Tier 2 for any parameter?
Yes ❑ No []
Was this outfall ever in Tier 2 during the past year?
Yes ❑ No ❑✓
If this outfall was in Tier 2 last year, was monthly monitoring discontinued?
Yes, enough consecutive samples below benchmarks to decrease frequency
❑
Yes, received approval from DEMLR to reduce monitoring frequency
❑
No, turbidity benchmark exceedances did not require monthly monitoring
❑
Other
Outfall No.
W4
---------
Total
Rainfall,
inches
TSS,
mg/i
SS,
ml/I
Turbidity,
Y
NTU
Upstream
(U) Turbidity,
NTU
Downstream
(D) Turbidity,
NTU
Non polar
O&G, mg/I
(VMA)
New
Motor Oil
Usage
al/mo.
Stormwater
Benchmarks
Date Sample
Collected,
mo/dd/yr
,,,tea,. NO
'��''"
ea.
1.35
�h :r«
100/50
12.9
OND
Benchmark
50/25l10
15.4
N/A
water Quality
Standaw appaes
N/A
N/A
Water Quality
Standard appilo
5
'u oallmo.
avarape requires
TSS and Non -polar
O&G monftorl ng
06/20/2021
N/A
N/A
NIA
Permit Date 10/1/2015 — 9/30/2020
Last Revised 10-2-2015

Certificate of Coverage No. NCG02 0� 3_j 3[�©
Additional Outfall Attachment (make copies as needed for additional outfalls)
Stormwater Discharge Outfail (SDO) No. 005 VMA Outfali? Yes ❑ No ✓[�
Is this outfall currently in Tier 2 for any parameter? Yes ❑ No []
Was this outfall ever In Tier 2 during the past year? Yes ❑ No ✓jv
If this outfall was in Tier 2 last year, was monthly monitoring discontinued?
Yes, enough consecutive samples below benchmarks to decrease frequency ❑
Yes, received approval from DEMLR to reduce monitoring frequency ❑
No, turbidity benchmark exceedances did not require monthly monitoring ❑
Other n
Outfall No.
005
Total
Rainfall,
inches
TSS,
mg/I
SS,
mi/1
Turbidity,
Y
NTU
Upstream
(U) Turbidity,
NTU
Downstream
(D) Turbidity,
NTU
Non -polar
O&G, mg/i
(VMA)
New
Motor Oil
Usage
g
allmo.
Sformwafer
Date Sample
Collected,
molddl r
kK*cata rro
FG&AWk;bft
-
1.36
ein�,,,ti,k
5.8
ND
�"ti,nark
8.3
N/A
Standard ws
o
N/A
N/A
Water
Standard applies
�
15
>cle SS ysUma.
average requires
TSSNon.pr
D& ,Ontt
06/20/2021
N/A
N/A
N/A
Permit Date 10/1/2015 — 9/30/2020
Last Revised 10-2-2015

Certificate of Coverage No, NCG02 07 3a 37 007
Additional Outfall Attachment (make copies as needed for additional outfalls)
Stormwater Discharge Outfall (SDO) No. 006 VMA Outfall? Yes []✓ No ❑
Is this outfall currently in Tier 2 for any parameter? Yes ❑ No 17-11
Was this outfall ever in Tier 2 during the past year? Yes ❑ No 0
If this outfall was In Tier 2 last year, was monthly monitoring discontinued?
Yes, enough consecutive samples below benchmarks to decrease frequency ❑
Yes, received approval from DEMLR to reduce monitoring frequency ❑
No, turbidity benchmark exceedances did not require monthly monitoring ❑
Other f-1
Outfall No.
Total
Rainfall,
Inches
TSS
mg/l
SS
mUl
Turbidity,
NTU
Upstream
(U) Turbidity,
NTU
Downstream
(D) Turbidity,
NTU
Non -polar
O&G, Mg/Il
(VMA)
New
Motor Oil
L�U.Lsage
l/mo
Stormwater
Date Sampie
Collected,
mo/dd/yr
h dicata No
O1
;
1.35
r.`oe`ia,Mwr
100/500.1
3.0
ND
_h rk
50/25/10
4.1
N/A
aed;
N/A
NIA
Standardt
15
a155 981(mo
ra" requires
TSw6and Non-polart,P�„
03G moniftwing
06/20/2021
N/A
N/A
ND
Permit Date 10/1/2015 — 9/30/2020
Last Revised 10-2-2015

Certificate of Coverage No. N0002 0[]aaF0-1
CERTIFICATION
"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."
[Required by 40 CFR § 122, 22] /j
Signature
Date
Mail Annual Summary Stormwater DMR to the NCDEQ Central Office:
Note the address is correct — Central Files is housed in D WR (not DEMLR)
N.C. Department of Environmental Quality (DEQ)
Division of Water Resources
Attn: DWR Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
Central Files Telephone [phone]
Questions? Contact DEMLR Stormwater Permitting Staff in the Central Office at:
[phone]
Permit Date 10/1/2015 — 9/30/2020
Last Revised 10-2-2015