NCG140119_DMR_20200730 (1)

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG 14 O 119
FACILITY NAME: Chandler Concrete Piedmont - Salisbury #114
PERSON COLLECTING SAMPLES: _
CERTIFIED LABORATORY:Pace Analytical Lab #633
OPTIONAL INFO:
PartA: Stormwater Monitoring Requirements
Ong - State
SAMPLE COLLECTION YEAR: 2020 0 Copy -State
SAMPLING PERIOD: ❑July -December ®January -June 0 Copy -Plant
COUNTY Rowan 0 Copy -File
PHONE NO.(3366) 226.1182
ADD TO USTSERVE? DYES ®NO EMAIL: _
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other: WS-V B
Date Sample
Collected
pH
TSS
Total
In Tier 2
go f Mont sin
Outfall No.
(mm/dd/yrOR
(Standard Units)
(mg/L)
Rainfall'
Monthly Monitoring?
Tier
NO FLOW)'
(in)
(y/n)
Sampling
-
-
61
10011
-
-
-
1
NQD
N
N/A
NQD-No Qualified Discharge -
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 Reportthe abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning(VE), Raw Material Stockpiles(RM), Mixing Drum Cleanout(MD). Report more 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 monitoringfor 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 ri for all other water classifications.
6 Process wastewater discha tees shall only be monitored for TPH when commingled with stormwater discharges from VMA 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 be set to 50% of the Summer 7010 Flow as per 15A NCAC 02B.0224.Permittees
who discharge wastewater to HOW waters shall obtain a Summer 7010 flow and report this information to DEMLR. if the permittee cannot obtain a Summer 7Q10 flow for receiving waters at
discharge location, the permittee shall notify DEMLR, and the DEMLR Regional Office may require an annual flow report on acase-by-case basis.
Permit Date: 8/1/2017-06/30/2022
Last Revised 07/27/17
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AUG 10 2020
CEN-TW', Fir "-S
DV'WR SEC ICN

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using> 55 gal of new motor oil/month— averaged over a calendar year.
Non -Polar Oil &
Outfall
Date Sample
pH
Grease using
Total Suspended
Event
Total
New Motor Oil
Monthl n Tier 2
# of Months in
(Standard
method
Solids
Duration
Rainfallc
Usage
Tier
No.
Collected
Units)
16645GT--HEM
(ma)
(minutes)
(in)
(gal/month)
Monitoring?
Sampling°
(mo/dd/yr)'
(mg/L)
(y/n)
6-97
15'
i
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:
Mai Original and one copy of this DIM (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
"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:;W7
false information, Including the possibility of fines and imprisonment for knowing violations."
_ 30
(Sign ure of Permittee) ( te)
Permit Date: 8/1/2017- 6/30/2022 Last Revised 7/27/18
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