NCG020173 DMR WW 20210203

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT (DMR) — WASTEWATER
SUBMIT TO CENTRAL OFFICE"
General Permit No. NCG020000
Calendar Year 2020
'Report ALL WASTEWATER monitoring data on this form (indude'No Flow"f No Discharge" and Limit Violations) from the previous calendar year to the
DIED by MARCH 1 of each year.
sate of Coverage No. NCG020173
y Name: Mallard Creek Quarry
y: 704-547-9775
Number: Mecklenburg Total No. of Outfalls Monitored 1
ed Laboratory Pace Analytical Lab # 40
Lab #
Wastewater (WW) Discharge Outfall No. 1
Is this an industrial sand mine (See 40 CFR §436 Subpart D)? Yes No X
Does this outfall discharge W W to SA waters? Yes No x
Does this outfall discharge W W to SB or PNA waters? Yes No %
Does this outfall discharge WIN to HOW or ORIN waters? Yes No X
If so, what is the 7Q10 flow rate? NA or Tidally influenced waters, 7Q10 not available
Does this outfall discharge W W to Trout (Tr) designated waters? Yes a No Bx
Were there any limit violations in the calendar year? Yes No X
C E G 11 r
Outfall No. 1
Daily Flow
Rafe eft;
PH, SU
T55, mg/l
SS, ml/I
w�ym,
Discharge
Turbidity, NTU
Upstream (U)
Turbidity,
NTU
Downstream (D)
Turbidity, NTU
Fecal Collform,
co1ml
(SAI (SA)
Effluent
Ll.Ae.IDair
MO.A /Dell
a Y
Max.
HQWor ORW
50%of7Q10
Indic ate NO FLOWif
appliroble
Freshwater 6.
9.0 Saltwater
6.8-8.5
Ind,wrial sand 25/45
HQW or ORW 20/30
IIQW or ORW and Tr
or PN:\10/I$
HQW. Caw,
SA, Sa, PNA or
any Taunt
ILI/0.2
No Limit nm.wa.
......—
y"v50/25110 rr
N/A wn.,o�aav
a.�n,m.00u..
N/A wn.o,,anrv..m.°
=,w..
N/A
Dale Sample
Collected, ma/dNyr
6/11/2020
0.23
8.3
5.9
<0.10
1.2
10/23/2020
0.06
8.9
23.6
<0.10
10.6
Permit Date 10/112015 — 9/30/2020
Last Revised 10-2-2015

Certificate of Coverage No. NCG020173
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 CPR §122 nj
Signature-/'o'-�Z �Vd
Date 2/3/2021
Mail Annual Summary Stormwater 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 10/112016 — 9/30/2020
Last Revised 10-2-2015