NCG020043_DMR_20210216

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT (DMR) - STORMWATER
SUBMIT TO CENTRAL OFFICE*
General Permit No. NCG020000
Calendar Year 2020
*Report ALL STORMWATER monitoring data on this form (include "No Flow" P'No Discharge" and Benchmark
Exceedances) from the previous calendar year to the DEQ by MARCH 1 of each year.
Certificate of Coverage No. NCG020043
Facility Name: Martin Marietta Materials, Inc. - Raleigh Durham Quarry
County: Wake
Phone Number 919 782-0002 Total no. of SDO's monitored 2
Certified Laboratory Pace Analytical Lab # 12
Lab #
Stormwater Discharge Outfall (SDO) No. 003 VMA Outfall? Yes
No X
Is the outfall currently in Tier 2 for any parameter? Yes X
No
Was the outfall ever in Tier 2 during the past year? Yes X
No
If the outfall was in Tier 2 last year, was monthly monitoring discontinued?
Yes, enough consecutive samples below benchmarks to decrease frequency
ECF'` /�
Yes, received approval from OEMLR to reduce monitoring frequency
V t�
FEB
No, turbidity benchmark exceedances did not require monthly monitoring
2 3 200,
Other
L EN_r&AL FILL
Outfall No.
-----------
Total
Rainfall,
inches
TSS
mg/1
SS,
ml/I
Turbidity,
NTU
Upstream
(U) Turbidity
NTU
Downstream
(D) Turbidity
NTU
Non -polar
O&G, mg/I
VMA
New
Motor Oil
Usage
al/mo.
Stormwater
Benchmarks
Indicate NO
FLOWi(
a 4caMe
Circleined
Benchmark
Benchmark
10 50
0.1
nOnncle
Benchmark
�25110
NA
Water Quality
Standard a lies
NA
Water Quality
Standard Ilan
15
»Se requires
average requires
TSS and Ncry lar
O&G mandanng
Date Sample
Collected,
mo/dd/yr
6/19/2020
0.8
19.3
No
24.5
12/7/2020
0.4
21.7
No
43.3
Permit Date 10/1/2015 - 9/30/2020
Last Revised 10/2/2015

Certificate of Coverage No. NCG020043
Additional Outfall Attachment (Make copies as needed for additional outfalls)
ormwater Discharge Outfall (SDO) No. 002 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 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.
-----------
Total
Rainfall,
inches
TSS
mg/I
SS,
mill
Turbidity,
NTU
Upstream
(U) Turbidity
NTU
Downstream
(D) Turbidity
NTU
Non -polar
O&G, mg/I
(VMA)
New
Motor Oil
Usage
(gal/mo.)
Stormwater
Benchmarks
Indlcate NO
F`owd
applicable
C,rde
Benchmark
100 50
0.1
Cte
8enUimak
�25/10
NA
water0uality
Standard applies
NA
watm er0ua
Standard applies
15
'55 gaVmo.
average requires
TSS and Nampolar
O&G monitoring
Date Sample
Collected,
mo/dd/yr
12/7/2020
0.4
67.1
24.5
ND
> 55
> 55
No Observed Dischar a in 1 st Period 2020
Permit Date 10/1/2015 - 9/30/2020
Last Revised 101212015

Certificate of Coverage No. NCG020043
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,
[Required by 40 CFR 122.22]
Signature
Date
including the possibility of fines and imprisonment for knowing violation."
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 10/112015 - 9/30/2020
Last Revised 101212015