NCG140001_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"rNo Discharge"and Benchmark
Exceedences)from the previous calendar year to the DEQ by MARCH f of each year.
Certificate of Coverage No. NCG14 0❑OQ 11❑
Facility Name: Thomas Concrete of Carolina-Raleigh Plant
County: Wake
Phone Number: g( 19 )828-4403 Total no. of SDOs monitored 1
Certified Laboratory Pace Analytical Lab# 375
Lab#
Stormwater Discharge Outfall (SDO) No, 001 VMA Outfali? Yes ❑ No [E
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 ❑� 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 ❑
Other ❑
Non-polar O&G
Total (EPA Method New Motor Oil
Total Rainfall, Suspended pH, 1664 Usage )
Outfall No. (SGT•HEM)), 9 (gal/mo.
oar inches Solids (TSS), SU mg/I (VMA) N.ppfk.bhe
m /l n.Ppue,m.
Stormwater "'"`Benchmark
Ind)--.NO FLOWiI 100150 6.0-9.0 15 >55 aU...a..,.,ray.b..Ts9 and
Benchmarks PPPa.bh N.rvp.l.r OAO m.nk.d,
Date Sample
Collected,
mo/dd/yr
01/25/21 0.20 90 9.57 - -
02/11/21 1.01 686 9.67
03/16/21 0.29 36.6 9.87
04/21 NO FLOW
05121 NO FLOW
06/03/21 2.30 73 9.31 - -
07/08/21 2.52 <2.5 8.56
08/21 NO FLOW
09/21 NO FLOW
10121 NO FLOW
11/21 NO FLOW
12121 NO FLOW
Permit Date 8/1/2017—6/30/2022
Last Revised 8-22-2015

i
i
Certificate of Coverage No. NCG14 Fj1F1 0E10
CERTIFICATION
ul 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 vlolations.°
[Required by 40 CFR§122.221
Signature
Date
Mail Annual Summary Stormwater DMIR to the NCDEQ Central Office:
Note the address is correct-Central Files Is housed In DWR(Rat 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 DEIVILR Stormwater Permitting Staff in the Central Office at:
[phone]
Permit Date 8/1/2017—6/30/2022
Last Revised 8-22 2015