NCG140350_DMR SW_20220222

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT (DMR) — STORMWATER
SUBMIT TO CENTRAL OFFICE*
General Permit No. NCG140000
Calendar Year 2021
'Report ALL STORMWATER monitoring data on this form (include "No Flow"/No Discharge" and Benchmark
Exceedances) from the previous calendar year to the DEO by MARCH i of each year.
Certificate of Coverage No. NCG14 13❑ 5❑ 0❑
Facility Name: Thomas Concrete of Carolina - Wake Forest Plant
County: Wake
Phone Number: 9( 19 )562-1909 Total no. of SDOs monitored 1
Certified Laboratory Pace Analytical Lab # 375
Lab #
Stormwater Discharge Outfall (SDO) No. 001 VMA Outfall? Yes 0 No ❑
Is this outfall currently in Tier 2 for any parameter? Yes 0 No ❑
Was this outfall ever in Tier 2 during the past year? Yes 0 No ❑
If this outfall was in Tier 2 last year, was monthly monitoring discontinued?
Yes, enough consecutive samples below benchmarks to decrease frequency I]
Yes, received approval from DEMLR to reduce monitoring frequency 11
Other ❑
Outfall No.
001
Total Rainfall,
inches
Total
Suspended
Solids (TSS),
m /I
pH,
SU
Non -polar O&G
(EPA Method
1664 (SGT-HEM)),
mg/I (VMA)
M."Jk.bl.
New Motor Oil
Usage al/mo.)
9 (9
N.pprk.bm
Stormwater
Benchmarks
mak.r.NOFl.own
.pplk.bl.
G"°"a... hm `"
100/50
6.0.9.0
15
sse.umo.,..,.a• •n.rwrss.na
Nan.pola 0&G monilarlOp
Date Sample
Collected,
mo/dd/ r
4ma
01/25/21
0.05
105
12.36
<1.29
>55
02/11/21
0.98
77.2
11.53
<1.26
>55
03/16/21
0.23
63.1
11.74
<1.22
>55
04/21
NO FLOW
05/21
NO FLOW
06/03/21
2.18
15A
10.87
<1.16
>55
07/08/21
2.52
22.2
10.84
<1.16
>55
08/21
NO FLOW
09/09/21
0.08 1
331
9.81
<1.16
>55
10/21
NO FLOW
11/21
NO FLOW
12/21
NO FLOW
Permit Date 8/11/2017 — 6/30/2022 R F O E I V E D
Last Revised 8-22-2015
MAR 0 7 2022
:tN f RAL FILES
DWR SECTION

Certificate of Coverage No. NCG14 E]®5❑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."
lRequlred by 40 CFR §121221
Sign ture
Date
Mail Annual Summary Stormwater DMR to the NCDEQ Central Office:
Note the address is canned — Central Files is housed In DWR (aot DEMLR)
N.C. Department of Environmental Quality (DEQ)
Division of Water Resources
A, f ,_tn: 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 Data 8/1/2017 -- 0/3012022
Lest Revised 8-22-2015