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Home My WebLink AboutNCG140091 DMR SW STORMWATER DISCHARGE OUTFALL (SDO) - Semi-Annual MONITORING FORM GENERAL PERMIT NO. NCG140000 Orig-State 0 Copy—State 0 Copy—Plant CERTIFICATE OF COVERAGE NO. NCG14 0 0 9 1 SAMPLE COLLECTION YEAR:2014-2015 0 Copy-File FACILITY NAME: Chandler Concrete Co.-Roxboro Pit. 607 SAMPLING PERIOD: ❑July-December ®January-June PERSON COLLECTING SAMPLES: �< COUNTY Person CERTIFIED LABORATORY:Pace Analytical Lab#633 �, - - PHONE NO. ( 336) 599 - 8343 OPTIONAL INFO: JUL 3 1 zoi5 ADD TO LISTSERVE? OYES ONO EMAIL: _ DISCHARGING TO CLASS: LISA ❑HQW ❑PNA ❑Trout ®Other: C Part A:Stormwater Monitoring Requirements CENTRAL FILES Date Sample DWRIC71t3 In Tier 2 Collected pH TSS Event Total a Monthly #of Months in Tier Outfall No. (mo/dd/yr OR (Standard Duration Rainfall 2 Units) (m g/L) (minutes) (in) NO FLOW)' Monitoring? 2 Sampling (Y/ ) - - 6-92 1002.3 - - - - 2 NO FLOW N N/A 1 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) (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 dimly responsible •r gathering the information,the information submitted is,to the best of my knowledge and belief,true,accurate,and complete. I am awa/re�.`i• re a • sig• fica' penalties for submitting false information,including the possibility of fi es a imprisonment for knowing violations." / � 7ZdJx (Signature of Permittee) / (D te) Permit Date:7/1/2011-60/30/2015 Last Revised 7/13/11 Page 2 of 2 PROCESS WASTEWATER — Quarterly �l orig-State Qua to y Discharge Monitoring Report 0 Copy-State GENERAL PERMIT NO. NCG140000 0 Copy-Plant 0 Copy-File CERTIFICATE OF COVERAGE NO. NCG14 0 0 9 1 SAMPLE COLLECTION YEAR: 2014-2015 FACILITY NAME: Chandler Concrete Company- Roxboro Pit. 607 SAMPLE QUARTER: ❑Jul-Sept ❑Oct-Dec Jan-March ®April-June PERSON COLLECTING SAMPLES: , ` COUNTY: Person CERTIFIED LABORATORY:Pace Analytical Lab#633 RCI` FD PHONE NO. ( 336) 599- 8343 JUL X015 ADD TO LISTSERVE? OYES NO EMAIL: LIMIT VIOLATIONS? YES ® NO n DISCHARGING TO CLASS: LISA ❑HQW fPNA ❑Trout ®Other: C CENTRAL FILES — DWrZ SECTION OPTIONAL INFO: Part A:Wastewater Monitoring Requirements TPH using Date Sample Total Suspended Settleable Discharge Outfall No. Collected' Type of Wastewater pH Solids Solids method 1664A Duration Total Flow (mm/dd/yr) (VE,RM,MD)2 (standard) (mg/L) (mL/L) SGT-HEM (minutes) (gallons/day)7 (mg/L) 6-93,4 303,6 53 (15)6 - - 1 NO FLOW VE RM MD N/A No Qualifying Discharge observed 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. 'Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HOW 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 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 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 there are significant penalties for submitting false information,including the possibility of fines and imprisonment for knowing violations." /I/ 7 2 r /S Sig ature of Permittee)/ ( ate) Permit Date:7/1/2010-06/30/2015 Last Revised 07/13/11 Page 2 of 2