NCG140088_DMR_20211026 (2)

0 Orig — State
PROCESS WASTEWATER — Quarterly Discharge Monitoring Report 0 Copy — State
GENERAL PERMIT NO. NCG140000 0 Copy — Plant
2 QTR 0 Copy - File
CERTIFICATE OF COVERAGE NO. NCG 14 O 0 H S SAMPLE COLLECTION YEAR: 2021
FACILITY NAME: Chandler Concrete Companv - BURLINGTON Pit # 605 SAMPLE QUARTER: ❑Jan -March ®April -June ❑Jul -Sept ❑Oct -Dec
PERSON COLLECTING
CERTIFIED LABORATC
LIMIT VIOLATIONS? YES ❑ NO
Part A: Wastewater Monitoring Requirements
COUNTY: ALAMANCE
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HOW ❑PNA []Trout ®Other: NSW
OPTIONAL INFO:
OutfallNo.
Date Sample
1
Collected
( mm/dd/yr)
Type of Wastewater
(VE, RM, MD) z
pH
(standard)
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
Non -Polar
Oil &Grease
using method
1664SGT--HEM6
(mg/L)
Discharge
Duration
(minutes)
Total Flow
(gallons/day) '
-
-
-
6-93.4
303.5
53
(15)6
-
-
1
6/22/21
VE RM MD
7.2
ND
N/A
N/A
20
N/A
Discharge was result of rain event. - SW comingles with Process Water'
' 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.
`Report the abbreviation forthe 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.
3If 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. NOV 05 20/1
° pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
6 TSS limits are 20 mg/L for wastewater discharges to HQW 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 forTPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewatei, but instead is subject to
benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
'Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50%of the Summer 7Q10 Flow as per 15A NCAC 02B .0224. Permittees
who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DEMLR. If the permittee cannot obtain a Summer 7Q10flow for the receiving waters atthe
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: R/1/2017-06/30/2022 Last Revised 07/27/17
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