NCG020065_2020 DMR_20210322

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'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 K]00®K]
Facility Name:
County: Swain
Phone Number:
Nantahala Talc & Limestone Company -Hewitt Quarry
828 )557-4428
Certified Laboratory Environmental Inc.
Lab #
Lab #
Total no- of SDOs monitored 3
Stormwater Discharge Outfall (SDO) No. 1 VMA Outfall? Yes ❑ No Z
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 El
Yes, received approval from DEMLR to reduce monitoring frequency ❑
No, turbidity benchmark exceedances did not require monthly monitoring
Other I --I
Outfall No.
Stormwater
rkS
Date Sample
Collected,
molddlyr
Quarter 1
Quarter 2
Quarter 3
Quarter 4
Total
Rainfall,mgll
Indicate NO
LOif
a
No Flow
No Flow
No Flow
No Flow
TSS,
Circ3e
Benchmark
100150
SS,
mlll
0.1
Permit
Turbidity,
NTU
Gircle
Benchmark
50125I1Q
Date 10/1/2015
Last Revised
Upstream
(U) Turbidity,
NTU
w
NIP'►
Sater quaiit
tanard apples
— 9/30/2020
10-2-2015
Downstream
(D) Turbidity,
NTUO&G,
NIA
St ndard applies
Non -polar
mgllinche
(VMA)
New
Motor Oil
Usage
(gallmo.)
>55 allmo.
9
aveage rquiresenchma
TSS and Noon -polar
&G monitoring

Certificate of Coverage No. NCG02 0 0�®EI
Additional Outfall Attachment (make copies as needed for additional outfalis)
Stormwater Discharge Outfall (SDO) No. 3 VMA Outfall? Yes ❑ No 0
Is this outfall currently in Tier 2 for any parameter? Yes ❑ No 0
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 i❑
Other
Outfall No.
Total
Rainfall,
TSS
SS TurbiditytN/A
(U,
Downstream
(D) Turbidity,
Non -polar
New
Motor Oil
a
inches
mgll
mill NTU
NTU
O&G, mgll
Usage
Sformwater
Indicate
Circe
Benchmark
circle
Benchmark
N/A
{VMA)
gal/mo.)
n55 9 Umo,
Benchmarks
FL�Wrf
if
applicable
.1 0n
+�v15�
e n
��� 501251� (}
Water Quafit
Standard applies es
PP
Water Quality
standard applies
15
a.rageregWres
TSS and Non -polar
Date Sample
O&G monitorin
Collected,
moldd/yr
Q1 & Q2
No Flow
Q3 & Q4
No Flow
Permit Date 10/1/2015 — 9/30/2020
Last Revised 90-2-2015

Certificate of Coverage No. NCG02 0❑ 0�©�
Additional Outfall Attachment (make copies as needed for additional outfaiis)
Stormwater Discharge Outfall (SDO) No. 4 VMA Outfall?
Yes ❑ No 0✓
Is this outfall currently in Tier 2 for any parameter?
Yes ❑ No 0
Was this outfall ever in Tier 2 during the past year?
Yes ❑ No Ej
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
Total Upstream
Outfall No. RainfalTSS, 5S, Turbidity, (U) Turbidity,
l'
Downstream
(D) Turbidity, Non -polar
New
Motor Oil
mgll mlll NTU NTU
4 inches
NTU O&.G, mgll
Usage
circle Circle
Stormwater Indicate1J0 Benchmark Benchmark NIA
(VMA)
Nlq
(galhmo.)
>55 gallmo.
Benchmarks FLOWif n �012�1� water Quality
a ricable 1 00150 0. standard applies
Standard apples 15
average requires
TSS and Nan -polar
Date Sample
o&c monitorin
Collected,
molddlyr
Q1 & Q2 No Flow
Q3 & Q4 No Flow
Permit Date 101112015 — 9/30/2020
Last Revised 10-2-2015

Certificate of Coverage No. NCG02 0�©�
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 2/27/29
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