NCG140218_DMR_20210119

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT (DMR) — WASTEWATER
SUBMIT TO CENTRAL OFFICE*
General Permit No. NCG140000
Calendar Year 2020
Report ALL WASTEWATER monitoring data on this form (include "No Flow"/"No Discharge' and Limit Violations) from
the previous calendar vear to the DEQ by MARCH 1 of each vear.
Certificate of Coverage No. NCG14 0❑ E� 1❑®
Facility Name:
County: _ _
Phone Number:
Thomas Concrete of Carolina - Durham Plant
Durham
919 1598-0456
Certified Laboratory ESC -Pace Analytical
RECE
FEB 0 8 2021
Togil tf pe lls monitored
Lab # ENy375 DWR SECTION
Lab #
Wastewater (WW) Discharge Outfall No. 001
Does this outfall discharge WW to SA waters? Yes ❑ No ❑✓
Does this outfall discharge WW to SB or PNA waters? Yes ❑ No 0
Does this outfall discharge WW to HQW or ORW waters? Yes ❑ No El
If so, what is the 7Q10 flow rate? or Tidally influenced waters, 7Q10 not available ❑
Does this outfall discharge WW to Trout (Tr) designated waters? Yes ❑ No ❑✓
Were there any limit violations in the calendar year? Yes r❑ No ❑
Outfall No.
001
Daily Flow Rate,
cfs
pH,
SU
TSS,
mg/l
SS,
ml/I
Ilapplicable
Non -Polar O&G (EPA Method 1664
(SGT-HEM)), mg/l
Effluent
Limitations
Daily Maximum
OOW or ORW
50%of7010
Indicate NOFLOW i/
applicable
haahwatar
6.0-9.0
saltwalu
6.8-8.5
Standard
30
HOW
20
MOW /ORW and Tr. or
PNA
10
HOW, OR. SA,
Sit. PNA, or any
Trout
5
No Limit
SamplesoBenchmark
subject tto Ti.,.iarad Responses
15
Date
Sample
Collected,
mo/dd/ r
02/06/20
0.38
11.64
129
N/A
<5.10
05/19/20
0.38
11.79
154
<0.033
<1.22
07/24/20
0.38
11.23
-
<0.2
-
11/14/20
0.38
11.91
-
0.7
-
Permit Date 8/1/2017 — 6/30/2022
Last Revised 8-22-2017

Certificate of Coverage No. NCG14 0❑ 2❑ 10®
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 6y 40 CFR §122.22] q ,
Signature
Date i
Mail Annual Summary Wastewater 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 8/1/2017 — 6/30/2022
Last Revised 8-22-2017