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Home My WebLink AboutNCG140087 DMR SW STORMWATER DISCHARGE OUTFALL (SDO) - Semi-Annual MONITORING FOR Pl Ori GENERAL PERMIT NO. NCG140000 . g-State 0 Copy-State 0 Copy-Plant CERTIFICATE OF COVERAGE NO. NCG14 0 0 8 7 SAMPLE COLLECTION YEAR:2014-2015 0 Copy-File FACILITY NAME: Chandler Concrete Co.—Siler City; bCE``VEE AMPLING PERIOD: ❑July-December ®January-June PERSON COLLECTING SAMPLES: Brian Teague COUNTY Chatham JUL 31 2015 PHONE NO. (919)742 -2193 CERTIFIED LABORATORY:Pace Analytical Lab#633 OPTIONAL INFO: CENTRAL FILES ADD TO LISTSERVE? OYES ENO EMAIL: _ DWR SECTION DISCHARGING TO CLASS: LISA ❑HQW ❑PNA ❑Trout ®Other: C Part A:Stormwater Monitoring Requirements Date Sample In Tier 2 Collected pH TSS Event Total a Monthly #of Months in Tier Outfall No. (Standard Duration Rainfall (mo/dd/yr OR Units) (mg/L) (minutes Monitoring? 2 Sampling NO FLOW) ) (in) (Y/n) - 6-92 1002'3 - - - - 1 NO FLOW N N/A 2 NO FLOW N N/A 'If"NO FLOW"or"NO DISCHARGE, Enter"NO FLOW"or"NO DISCHARGE"for each outfall here. Please make sure to mark the sample period above. 2 If a value is in excess of the benchmark,or outside the benchmark range(for pH),you must implement the Tier 1 or Tier 2 responses in the General Permit.Tier 2 Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range. 3 TSS benchmark values are 100 mg/I,except when discharging to ORW, HOW,Trout,and PNA waters where they are 50 mg/I. "For each sampled measurable storm event the total precipitation must be recorded using data from an on-site rain gauge. Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11 Page 1 of 2 Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using>55 gal of new motor oil/month—averaged over a calendar year. In Tier 2 pH TPH using method Total Suspended Event Total New Motor Oil #of Months Outfall Date Sample a Monthly (Standard 1664A SGT-HEM Solids Duration Rainfall Usage in Tier 2 No. Collected Units) (mg/L) (mg/L) (minutes) (in) (gal/month) Monitoring? Sampling2 (mo/dd/yr)1 (Y/n) 6-92 152 1002'3 - - - - - - - - N / A - - - No vehicle maintenance performed at facility - - - 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: Mail Original and one copy of this DMR (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 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 dire respon 'ble for gathering the information,the information submitted is,to the best of my kn•wledge and belief,true,accurate,and complete. I am aware t• • are ' nifi n penalties for submitting false information,including the possibility of fin: an• mprisonment for knowing violations." (Signature of Permittee (Da -) Permit Date:7/1/2011-60/30/2015 Last Revised 7/13/11 Page 2 of 2 /Orig-State PROCESS WASTEWATER — Quarterly Discharge Monitoring Report 0 Copy-State GENERAL PERMIT NO. NCG140000 0 Copy-Plant 0 Copy-File CERTIFICATE OF COVERAGE NO. NCG14 0 0 8 7 SAMPLE COLLECTION YEAR: 2015 FACILITY NAME: Chandler Concrete Company- Siler City#109 SAMPLE QUARTER: ❑Jul-Sept ❑Oct-Dec I ]Jan-March ®April-June PERSON COLLECTING SAMPLES: Brian Teague COUNTY:Chatham CERTIFIED LABORATORY:Pace Analytical Lab#RECEIVED PHONE NO. (919)742 - 2193 ADD TO LISTSERVE? OYES NO EMAIL: LIMIT VIOLATIONS? YES ❑ NO® JUL 31 2015 DISCHARGING TO CLASS: ❑SA ❑HQW I IPNA ❑Trout ®Other: C CENTRAL FILES DWR SECTION OPTIONAL INFO: Part A:Wastewater Monitoring Requirements Date Sample Total Suspended Settleable TPH using Discharge Outfall No. Collected) Type of Wastewater pH method 1664A Total Flow i Solids Solids Duration (mm/dd/yr) (VE,RM MD) (standard) SGT-HEM 6 (gallons/day)7 (mg/L) (mL/L) (mg/L) (minutes) - - 6-93,4 303,5 53 (15)6 - - 1 NO FLOW VE RM MD N/A 2 NO FLOW VE RM MD N/A No qualifying discharge this period- 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 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. 3 I 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. 7 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 HOW waters shall obtain a Summer 7010 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 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 th are significant penalties for submitting false information,including the possibility of fines and imprisonment for knowing violations." (Si nature of Permittee) (D e) Permit Date:7/1/2010-06/30/2015 Last Revised 07/13/11 Page 2 of 2