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HomeMy WebLinkAboutNC0086398_Draft NPDES Permit_20070411State of North Carolina Department of Environment and Natural Resources Division of Water Quality Michael F. Easley, Governor William G. Ross, Jr., Secretary Alan W. Klimek, P.E., Director Ms. Grace E. Wood V.P. Environmental Services URS Corporation 400 Northpark Town Center 100 Abernathy Road NE, Suite 900 Atlanta, GA 30328 Dear Ms. Wood: DENR-FRO JUL 9 - 2004 OWQ July 7, 2004 CDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES Subject: Draft NPDES Permit - Permit NC0086398 Aberdeen Pesticide Dumps Site Moore County Enclosed with this letter is a copy of the draft permit for your facility. Please review the draft very carefully to ensure thorough understanding of the conditions and requirements it contains. The draft permit contains no significant changes from your current permit. 0 Please submit any comments to me no later than thirty days following your receipt of the draft. Comments should be sent to the address listed at the bottom of this page. If no adverse comments are received from the public or from you, this permit will likely be issued in mid -August, with an effective date of October 1, 2004. If you have any questions or comments concerning this draft permit, contact me at the telephone number or e-mail address listed below. Sinrely, ergei Chernikov, Ph.D. NPDES Unit' cc: NPDES Unit ayettevilla.egtonalQffice / Water Quality: Section �? Point Source Compliance/Enforcement Unit Aquatic Toxicology Unit Mr. Roosevelt Childress, EPA 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 919 733-5083, extension 594 (fax) 919 733-0719 An Equal Opportunity Affirmative Action Employer sergei.chernikov@ ncmail net Permit No. NC0086398 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY Draft PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, Newfieids, Incorporated (As Registered Agent for Aberdeen Pesticide Site OU3 PRP Group) is hereby authorized to discharge wastewater from a facility located at Aberdeen Pesticide Dumps Site (APDS) NC Highway 5 (Pinehurst Road) Aberdeen Moore County to receiving waters designated as Aberdeen Creek in the Lumber River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, and IV hereof. This permit shall become effective This permit and authorization to discharge shall expire at midnight on July 31, 2009. Signed this day Alan Klimek, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission 0 SUPPLEMENT TO PERMIT COVER SHEET Aberdeen Pesticide Dumps Site is hereby authorized to: Permit No. NC0086398 1. Upon receiving an Authorization to Construct from the Division of Water Quality, operate a 0.072 MGD groundwater treatment plant consisting of an equalization tank, pumping system, settling system, filtration and backwash system, air stripper, bag filters, carbon adsorbers, and a discharge tank with dual effluent pumps, located at Aberdeen Pesticide Dumps Site (APDS), NC Highway 5 (Pinehurst Road), Aberdeen, Moore County, and 2. Discharge from said treatment works at the location specified on the attached map into Aberdeen Creek, which is classified as C waters in the Lumber River Basin. Latitude: Longitude: Quad #: Stream Class: Receiving Stream Permitted Flow: SCALE 1:24000 35°08' 03" Sub -Basin 03-07-50 79°25' 50" G21NW C Abenleen Creek 0.072 MGD North II Abenleen Pesticide Dumps Site NC0086.99R Permit No. NC0086398 A (2). CHRONIC TOXICITY PERMIT LIMIT (QRTRLY) The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphnia dubia at an effluent concentration of 2.5 %. The permit holder shall perform at a minimum, quarteriu monitoring using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. The tests will be performed during the months of February, May, August, and November. Effluent sampling for this testing shall be performed at the NPDES permitted final effluent discharge below all treatment processes. If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. The chronic value for multiple concentration tests will be determined using the geometric mean of the highest concentration having no detectable impairment of reproduction or survival and the lowest concentration that does have a detectable impairment of reproduction or survival. The definition of "detectable impairment," collection methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised - February 1998) or subsequent versions. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the following address: Attention: North Carolina Division of Water Quality Environmental Sciences Branch 1621 Mail Service Center Raleigh, North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete, accurate, include all supporting chemical/physical measurements and all concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe r Permit No. NC0086398 number, county, and the month/year of the report with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Branch at the address cited above. Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be required during the following month. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. Permit No. NC0086398 A (3). INSTREAM FLOW MEASUREMENT The permittee shall install a gauge for stream flow monitoring above the point of discharge (and below the impoundment at Pages Lake) prior to discharging from the permitted treatment works. All appropriate data, must be recorded and maintained by the permittee. A summary of flow data shall be submitted as a supplement with each discharge monitoring report form. Streamflow data may be reviewed by the Division prior to the next permit renewal. Should streamflow data indicate levels deemed by the Division to be significantly below the estimated 7Q10 (summer), this permit may be reopened to modify the permitted limits, require flow augmentation, and/. or require an intermittent discharge only when streamflows are recorded at or: above the estimated 7Q10 (summer) flow. A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (page 1 of 3 effluent pages) Permit No. NC0086398 During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge groundwater remediation wastewater from outfall(s) serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below: 'EFFLUENT CHARACTERISTICS ; , LIMITS MONITORING REQUIREMENTS Monthly Average > '' Weekly .1.07P..0,.. -Daily Maximum Measurement Fre uenc , Q. Y Sample Sample L Flow 0.072 MGD Continuous Recording I or E Total Suspended Solids 30.0 mg/1 Monthly Composite E Total Dissolved Solids Monthly Composite E pH 1 Monthly Grab E BOD5 Monthly Composite I, E Temperature °C Monthly Grab E PESTICIDES: 1, 2-Dibromo-3-chloropropane Quarterly Composite E 4,4'-DDD 0.031 µg/1 Monthly Composite E 4,4'-DDE 0.092 µg/1 Monthly Composite E 4,4'-DDT 0.040 µg/1 Monthly Composite E Aldrin 0.021 µg/1 Monthly Composite E Alpha-BHC p 2.02 µg/1 Monthly Composite E Beta-BHC 7.2 14/1 Monthly Composite E Delta-BHC Quarterly Composite E Gamma-BHC (Lindane) 0.40 µg/1 Monthly Composite E Chlordane 0.091 µg/1 Monthly Composite E Dasanit (Fensulfothion) Quarterly Composite E Dieldrin 0.022 µg/1 Monthly Composite E Disyston (Disulfoton) Quarterly Composite E Endrin 0.08 4/1 Monthly Composite E Endrin Ketone Quarterly Composite E Guthion (Azinphos Methyl) 0.40 µg/1 Monthly Composite E Heptachlor 0.033 µg/1 Monthly Composite E Heptachlor Epoxide 0.017 µg/1 Monthly Composite E Malathion Quarterly Composite E Sevin (Carbaryl) Quarterly Composite E Toxaphene 0.008 µg/1 Monthly Composite E A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (page 2 of 3 effluent pages) Permit No. NC0086398 VOLATILE :ORGANIC COMPOUNDS (VOCs) Benzene Quarterly Grab E Toluene 441 µg/1 Monthly Grab E Ethylbenzene Monthly Grab E Xylenes Monthly Grab E Methyl Tert-Butyl Ether (MTBE) Quarterly Grab E 1,2-Dichloroethane Monthly Grab E 1,1,1-Trichloroethane Quarterly Grab E Carbon Disulfide Quarterly Grab E Carbon Tetrachloride Quarterly Grab E SEMI -VOLATILE ORGANIC COMPOUNDS (SVOCs), ' 2-Methylnaphthalene Quarterly Grab E OTHER TOXICANTS Aluminum Quarterly Composite E Arsenic 21.8 µg/1 Monthly Composite E Barium Quarterly Composite E Beryllium µg/1 Monthly Composite _18 E Cadmium 5 µg/1 2/Month Composite E Chloride Quarterly Composite E Chromium 984.3 µg/1 2/Month Composite E Copper Quarterly Composite E Fluoride 72 mg/1 Monthly Composite E Iron Monthly Composite E Lead 33.8 µg/1 2/Month Composite E Magnesium Quarterly Composite -- E Manganese Quarterly Composite E Mercury2 2/Month Composite E Nickel 789 µg/1 2/Month Composite E Selenium Quarterly Composite E Silver Quarterly Composite E Sulfates Quarterly Composite E Vanadium Quarterly Composite E Zinc Quarterly Composite E Chronic Toxicity3 Quarterly Composite E A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (page 3 of 3 effluent pages) Permit No. NC0086398 Notes: * Sample locations: E - Effluent, I - Influent i The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 2 No discharge of mercury is allowed. 3 Chronic Toxicity (Ceriodaphnia) P/F at 2.5%; February, May, August, and November; See Part I, Special Condition A (2). Quarterly monitoring of pesticides via EPA methods M 608 and M 8141A is required. This monitoring shall be conducted in conjunction with toxicity testing. Quarterly monitoring shall be conducted in conjunction with toxicity sampling and testing. There shall be no discharge of floating solids or visible foam in other than trace amounts.