NCG140081_DMR_Stormwater_20200810

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG14 0 0 8 1
FACILITY NAME: Chandler Concrete Piedmont - Reidsville #104
PERSON COLLECTING SAMPLES:
CERTIFIED LABORATORY:Pace Analytical Lab #633
OPTIONAL INFO:
Part A: Stormwater Monitoring Requirements
Orig - State
SAMPLE COLLECTION YEAR: 2020
0 Copy - State
SAMPLING PERIOD: ❑July -December ®January -June
0 Copy - Plant
COUNTY Rockingham
0 Copy - File
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other: WS-III / NSW
Outfall No.
Date Sample
Collected
(mm/dd/yrOR
NO FLOW)'
pH
(Standard Units)
TSS
(mg/L)
Total
Rainfall'
(in)
In Tier 2
Monthly Monitoring?
(y/n)
q of Months in
Tier
Sampling
6-9'
10013
1
NO FLOW
N
N/A
No Discharge Observed during this period
1 If wastewater systems have not discharged in this quarter —report "No Flow" or" No Discharge' here. Please make sure to mark the sample quarter above.
2 Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum Cleanout (MD). Reportmore than
one type if the waste -stream is commingled.
3 If an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DEMLR RO staff notifies you to continue
monitoring.
4 pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwater
5 TSS limits are 20 mg/L for wastewater discharges to HOW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
6 Process wastewater discharges shall only be monitored for TPH when commingled with storm water discharges from VIVA areas. TPH does not have a limit for wastewater, but instead is subject to
benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
7 Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HOW waters shall beset to 50% of the Summer 7Q10 Flow as per 15A NCAC 02B .0224. Permittees
who discharge wastewater to HOW waters shall obtain a Summer 7Q10 flow and report this information to DEMLR. If the permittee cannot obtain a Summer 7Q10 flow forthe receiving waters at the
discharge location, the permittee shall notify DEMLR, and the DEMLR Regional Office may require an annual flow report on a case -by -case basis.
Permit Date:8/1/2017-06/30/2022
AUG 10 2020
GENTW',j FiL.E
DWR st_cT iOr.i
Last Revised 07/27/17
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Part B: Vehicle Maintenance Activitv Monitorine Reouirements for facilities usine > 55 eal of new motor oil/month — averaged over a calendar vear.
Non -Polar Oil &
pH
Grease using
Total Suspended
Event
Total
New Motor Oil
In Tier 2
# of Months in
Outfall
Date Sample
(Standard
method
Solids
Duration
Rainfalla
Usage
Monthly
Tier 2
No.
Collected
Units)
1664 SGT-HEM
(mg#)
(minutes)
(in)
(gal/month)
Monitoring)
Sampling Z
(mo/dd/yr)'
ty/�}
(mg/L)
6-92
is,
1001"
N/A
*Vehicle Maintenance Not Performed at this Locatio
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copy of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period in
case of "No Flow") to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED:
"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 penal ' s for submitting false information, including the possibility of fines and imprisonment for knowing violations."
�G' ✓ 7 2 2..t�
(signature of Permittee) (Da e)
Permit Date: 8/1/2017- 6/30/2022 Last Revised 7/27/18
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