NCG020173 DMR SW 20210204

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT (DMR) — STORMINATER
SUBMIT TO CENTRAL OFFICE'
General Permit No. NCG020000
Calendar Year 2020
'Report ALL STORMWATER monitoring data on this form (include "No Flow"I"No Discharge" and Benchmark
Exceedances) from the previous calendar year to the DIED byMARCH 1 of each year.
Certificate of Coverage No. NCG020173
Facility Name: Mallard Creek Quarry
County: Mecklenburg
Phone Number: 704-547-9775 Total No. of SDOs Monitored
Certified Laboratory Pace Analytical Lab N 40
Lab N
tonnwater Discharge Outfall (SDO) No. 10 VMA Outfall? Yes No
this outfall currently in Tier 2 for any parameter? Yes No
'as this outfall ever in Tier 2 during the past year? Yes No
this outfall was In Tier 2last year, was monthly monitoring discontinued?
as, enough consecutive samples below benchmarks to decrease frequency
as, received approval from DEMLR to reduce monitoring frequency
o, turbidity benchmark exceedances did not require monthly monitoring
Curtail No. i
Total Rainfall, Inches
TSS, mgll
SS, ml/1
Turbidity,
NTU
Upstream (U)
Turhidity, NTU
Downstream
(D) TNTbldity,
Non -polar O&G,
mg/l (VMA)
New Motor Oil
Usage
(gallmo.)
Stomawater
Benchmarks
Date Sample
Collected,
molddlyr
120-620
ewo,.aonown.m
No Observed Discharge
`""'
Ot 0/50
U.1
"""
5 /025110
N/A
suo or ,
N/A
°ia°;
15
620 - 12/20
No Observed Discharge
SE -
Pam It Dale 101112015-913012020
Last Revised 10-2-2015

Cerfificate 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 property 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 0y 40 CFR §122.221
Signature: 4)4v-v-&
Date: 2/4/2021
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 101112015 — 913012020
Last Revised 10-2-2015