NCG020001_2021 DMR_20220227

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT (DMR) — STORMWATER
SUBMIT TO CENTRAL OFFICE*
General Permit No. NCG020000
Calendar Year 2021
*Report ALL STORMWATER monitoring data on this form (include "No Flow'T'No Discharge" and Benchmark
Exceedances) from the previous calendar year to the DEQ by MARCH 1 of each year.
Certificate of Coverage No. NCG02
Facility Name: Triangle Quarry
Countv: Wake
Phone Number: (919 ) 266-1100
Certified Laboratory ENCO Labs Inc. -Cary
ENCO Labs Inc. -Orlando
Lab # S�
Lab #
Total no. of SDOs monitored 3
Stormwater Discharge Outfall (SDO) No. sDo-3/EQ-1 VMA Outfall? Yes ❑✓ No ❑
Is this outfall currently in Tier 2 for any parameter? Yes ❑ No ❑✓
Was this outfall ever in Tier 2 during the past year? Yes ❑ No Q
If 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.
SDO-3/EQ-1
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
al/mo.
Sformwater
Benchmarks
Indicate NO
FLOW if
applicable
Circle
Benchmark
100/50
0.1
Circle
Benchmark
50/25/10
N/A
Water Quality
Standard applies
N/A
Water Quality
Standard applies
1 5
>55 gal/mo.
average requires
TSS and Non -polar
O&G monitoring
Date Sample
Collected,
mo/dd/yr
02/01/2021
0.48
9
<0.1
15
<2.7
>55
Permit Date 10/1/2015 — 9/30/2020
Last Revised 10-2-2015

Certificate of Coverage No. N0002 0❑ 0❑ 0❑❑
Additional Outfall Attachment (make copies as needed for additional outfalls)
Stormwater Discharge Outfall (SDO) No. SDO-5 VMA Outfall? Yes ❑ No
Is this outfall currently in Tier 2 for any parameter? Yes ❑ No ❑✓
Was this outfall ever in Tier 2 during the past year? Yes ❑ No ❑✓
If 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.
SDO-5
Total
Rainfall,
inches
TSS,
mg/I
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
FLOW if
a licable
Circle
Benchmark
100/50
0•1
Circle
Benchmark
50/25/10
NIA
Water Quality
Standard applies
N/A
Water Quality
Standard applies
1 5
>55 gallmo.
average requires
TSS and Non -polar
OSG monitoring
Date Sample
Collected,
mo/dd/yr
02/19/2021
5.53
10
<0.1
10
Permit Date 10/1/2015 — 9/30/2020
Last Revised 10-2-2015

Certificate of Coverage No. NCG02 [O] 0� 1❑
Additional Outfall Attachment (make copies as needed for additional outfalls)
Stormwater Discharge Outfall (SDO) No. SDO-6/EQ-2 VMA Outfall? Yes ✓❑ No ❑
Is this outfall currently in Tier 2 for any parameter? Yes ❑ No FZ
Was this outfall ever in Tier 2 during the past year? Yes ❑ No ❑✓
If 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.
SDO-6/EQ-2
Total
Rainfall,
inches
TSS,
mg/I
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
FLOW if
applicable
Circle
Benchmark
100/50
0.1
Circle
Benchmark
50/25/10
N/A
Water Quality
Standard applies
N/A
Water Quality
Standard applies
1 CJ
>55 gallmo.
average requires
TSS and Non -polar
O&G monitoring
Date Sample
Collected,
mo/dd/yr
02/01/2021
0A8
5
<0.1
8
6.02
>55
Permit Date 10/1/2015 — 9/30/2020
Last Revised 10-2-2015

Certificate of Coverage No. N0002 IE 0❑ fl
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]
Signature
Date a/
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 10/1/2015 — 9/30/2020
Last Revised 10-2-2015