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HomeMy WebLinkAboutNCG140087_DMR_20210429PROCESS WASTEWATER — Quarterly Discharge Monitoring Report GENERAL PERMIT NO. NCG140000 1 QTR CERTIFICATE OF COVERAGE NO. NCG14 0 0 8 FACILITY NAME: Chandler Concrete Piedmont - SILER CITY Pit #109 PERSON COLLECTING SAMPLES: _ CERTIFIED LABORATORY: Lab# LIMIT VIOLATIONS? YES ❑ NO Part A: Wastewater Monitoring Requirements Orig — State 0 Copy — State 0 Copy — Plant 0 Copy - File SAMPLE COLLECTION YEAR: 2021 SAMPLE QUARTER: ®Jan -March ❑April -June ❑Jul -Sept ❑Oct -Dec COUNTY:CHATHAM PHONE NO. (336) 226-1181 ADD TO LISTSERVE? ❑YES ®NO EMAIL: _ DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA []Trout ®Other: C OPTIONAL INFO: Non -Polar Date Sample Type of Wastewater Total Suspended Settleable Oil&Grease Discharge Total Flow Outfall No. Collected' (VE, , MD) RM n (standard) Solids Solids using method Duration (gallons/day) (mm/dd/yr) (mg/L) (mL/L) 1664SGT--HEM6 (minutes) (mg/L) - - - 6-93,4 303'5 53 (15)6 - - 1 NO FLOW VE RM MD N/A N/A N/A No Discharge this Period - ' 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 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. '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 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 for TPH when commingled with stormwater 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. 'Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall beset 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 7Q10 flow for the 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 Last Revised 07/27/17 Page 1 of 2 MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY (INCLUDING ALL "NO FLOW", "NO DISCHARGE") WITHIN 30 DAYS OF RECEIPT OF SAMPLE (OR AT END OF MONITORING PERIOD IN CASE OF "NO FLOW") TO: Division of Water Resources Attn: DWR Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 (919)807-6379 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 th 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 fpPWWitting false information, including the possibility of fines and imprisonment for knowing violations." (Signature of Permittee) 4:�/' (Date) Permit Date:B/1/2017-06/30/2022 Last Revised 07/27/17 Page 2 of 2