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HomeMy WebLinkAboutNCG140210 DMR WW (2)PROCESS WASTEWATER — Quarterly Discharge Monitoring Report GENERACPERMIT NO. NCG140000 CERTIFICATE OF COVERAGE NO. NCG14 0 210 FACILITY NAME: Chandler Concrete Company - Haw River Plt. 609 PERSON COLLECTING SAMPLES: Tim Light CERTIFIED LABORATORY:Pace Analytical Lab #633 LIMIT VIOLATIONS? YES ® NO ❑ Orig - State 0 Copy - State 0 Copy - Plant 0 Copy - File SAMPLE COLLECTION YEAR: 2015 SAMPLE QUARTER: ❑Jul -Sept ❑Oct -Dec ®Jan -March ❑April -June COUNTY: Alamance PHONE NO. (L36) 578 - 2912 ADD TO LISTSERVE? ❑YES ®NO EMAIL: DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other: WS -V NSW OPTIONAL INFO: Part A: Wastewater Monitoring Requirements Outfall No Date Sample Collected) (mm/dd/yr) Type of Wastewater VE, RM, MD 2 ( ) pH' (standard) Total Suspended Solids, (mg/L) Settleable Solids' (mL/L) TPH using method 1664A 6 SGT -HEM (mg/L) Discharge Total Flow Duration 7' (minutes) (gallons/day) ' 6-93'41 303,5 53 (15)6 1 01/12/15 VE RM MD 7.4 10.0 ND N/A >45 UNK 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. z 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 DWQ 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. 5 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 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. 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 DWQ. If the permittee cannot obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ, and the DWQ Regional Office may require an annual flow report on a case-by-case basis. Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11 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 Quality Attn: DWQ Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 (919)807-6379 The sampler was unable to remain on site for the duration of the storm event / discharge. 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 the are significan enalties for submitting false information, including the possibility of fines and imprisonment for knowing violations." (Signature of Sl l S (Da e) Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11 Page 2 of 2