NCG020330_2021 DMR_20210716

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 Flovv rNo 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
Total no. of outfalls monitored 1
Lab # 12
Lab # 633
Wastewater (WW) Discharge Outfali 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 SB or PNA waters?
Yes ❑
No ❑✓
Does this outfall discharge WW to HOW 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 [D
Were there any limit violations in the calendar year?
Yes[]
No
❑✓
Outfall No.
003
Daily Flow
Rate, cfs
pH,
SU
TSS,
mg/I
SS,
mill
ffNAWk'b"
Discharge
Turbidity,
NTU
Upstream
(U) Turbidity,
NTU
Downstream
(D) Turbidity,
NTU
Effluent
Limitations
Mo. Ave! Daily Max.
HOW or ORW
o
50 /o Of
/�
7O1 0
w
ind���NO bw
hsshwanr
6.0-9.0
u"�
6.8-8.5
Industrial sand
25/45
HQW pr o�ew
20/30
HQw cr ORw
tnQ T• or PNA
10/15
HQw. oRw.
SA. So, PNA
or an Trod
y
0.1 /0.2
No Limit
circle water
Quality Standard
that applies:
50/25/10
NIA
water Quaitty
Standard applies
N/A
Water
Standard Pwl•a
Date Sample
Collected,
mo/dd/ r
06/20/2021
0.59
8.5
ND
ND
4.0
N/A
N/A
Permit Date 10/1/2015 — 9/30/2020
Last Revised 10-2-2015
Coliform,
col/100 mi
N/A
N/A

Certificate of Coverage No. NCG02 0E31M OO
"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
Signatu
Date%
I1WEIM A61luut-d SuFfIRIE"Io L)6""M to the NGFJ)F(I Comrrall OOmce.
Note the addross is correct -- Contral Files is housed in OWR (pgo( O MLH)
G` .G. Oop) "Olrvirlont� of EVAV©RUuuOMe] i Qua MY Q O F(R)
AwUn' L)1'PM Hes
Ico17 1'11161 Sc>rrVo Q ( orI rt
Rol Iauc G 11(a90, -1 G,11
Central FileQ= )Iephone, [phone]
Qk�jjo Bono? C OUI) GU DM�' NZ Movnnv,@�ftrr PovuWUng Stti e' on tkua Gaut ju OSf> ce a
F)Gv uiig Bate 10/1/2015 -- 9/30/2020
Last Revised 10-2-2015