NCG020330_DMR WW 20210714

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT (DMR) — WASTEWATER
SUBMIT TO CENTRAL OFFICE*
General Permit No. NCG020000
Calendar Year 2021
'Report ALL WASTEWATER monitoring data on this form (include "No FlowT'No Discharge" and Limit Violations) from
the previous calendar year to the DEQ by MARCH 1 of each year.
Certificate of Coverage No. NCG02
Facility Name: 3M Pittsboro
County: _ Chatham
Phone Number: (919 )642-4009
Certified Laboratory Pace Labs
Lab # 12
Lab # 633
Total no. of outfalls monitored 1
Wastewater (WW) Discharge Outfall No. 003
Is this an industrial sand mine (See 40 CFR §436 Subpart D)?
Yes ❑
No ❑✓
Does this outfall discharge WW to SA waters?
Yes ❑
No ❑✓
Does this outfall discharge WW to S13 or PNAwaters?
Yes ❑
No ❑✓
Does this outfall discharge WW to HQW or ORW waters?
Yes❑
No ❑✓
If so, what is the 7Q10 flow rate? or Tidally influenced waters,
7Q10 not available ❑
Does this outfall discharge WW to Trout (Tr) designated waters?
Yes ❑
No ❑✓
Were there any limit violations in the calendar year?
Yes
❑
No
❑✓
Outfall No.
003
Daily Flow
Rate, cfs
pH,
SU
TSS,
mg/I
SS,
ml/I
Ifapplrcabl.
Discharge
Turbidity,
NTU
Upstream
(U) Turbidity,
NTU
Downstream
(D) Turbidity,
NTU
Fecal
Coliform,
col/100 ml
SA
Effluent
Limitations
Mo. Ave/Daily Max.
HOWor ORW
50%of
7Q10
Indicate NO FLOW
rfapplkaer°
fmh.t.r
6.0-9.0
3,111water
6.8-6.5
Industrial Sand)
25/45
HOWorORW
20/30
HQWcrORW
and Tr or PNA
10/15
How, oRW,
SA, SS,PNA,
or any Trout
0.1/0.2
No Limit
Circle Water
Quality
t Standard
tha50/25/10
N/A
Water Quality
Standard applies
N/A
WaterQuality
Standard applies
N/A
Date Sample
Collected,
mo/dd/ r
06/20/2021
0.59
8.5
ND
ND
4.0
N/A
N/A
NIA
ii
1 IZAL FILES
Permit Date 10/112015 — 9/30/2020
Last Revised 10-2-2015

Certificate of Coverage No. N0002 ] 30 3❑ 0�
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] n A
Date
Mail Annual Summary Wastewater DMR to the NCDEQ Central Office:
Note the address is correct — Central Files is housed in DWR (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 101112015 — 9/30/2020
Last Revised 10-2-2015