NCG140138_DMR_20211214

PROCESS WASTEWATER —Discharge Monitoring Report
GENERAL PERMIT No. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140138 OEC 14 2WAPLE COLLECTION YEAR: _
FACILITY NAME: Greystone Concrete Products, Inc. PILE PERIOD: July -December ❑January -June
AI S L F I
SAMPLE COLLECTOR: ' /�y /� f/ PLE FREQUENCY: Quarterly ❑ Semi-annually
`Jy �ffr/ VIR SECT COUNTY: Vance
CERTIFIED LABORATORY: Lab #
Lab PHONE NO.: 252-438-5144
/ ADD TOLISTSERVE? ❑YES [—]NO EMAIL:
LIMIT VIOLATIONS? YES ❑ NO ❑ DISCHARGING TO CLASS: [:]SA ❑HQW ❑PNA ❑Trout ❑Other r s '�
OPTIONAL INFO:
Part A: Wastewater Monitoring Reouirements
Outfall No.
Date Sample
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)
-
-
-
fi-93.4
B0',s
53
(15)6
-
-
rGG ZVia ar 3rs4a ,rs rra„=,r..t up.,[ m[gcu in this quarter —report No riow" or No Ulscharge- here. Please make sure to mark the sample quarter above.
' Report the 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.
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.
Permit Date: 8/1/2017-06/30/2022 Last Revised 08/09/17
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4 pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
S 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 moni ored 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 provisior s of Part IV, Section A, including the Tiered Response Action.
' Flow rate can be measured continuously or calcul ted. 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 waste ater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DEMLR. If the permittee cannot
obtain a Summer 7Q10 flow for the receiving wat rs 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.
ORIGINAL AND ONE COPY OF
D OF MONITORING PERIOD II
Division of Water Resources
Attn: DWR Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
ING ALL "N
PLE
"I certify, under penalty of law, that this documents and all attachments were prepared under my direction or supervision in accordance with a system designed to
assure that qualified personnel properly gather an 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."
ure of Permittee) (D e)
Permit Date: 8/1/2017-06/30/2022 Last Revised 08/09/17
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