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HomeMy WebLinkAboutNC0026352_Performance Annual Report_20020115Town of Bladenboro January 15, 2002 System Performance Annual Report North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 RE: Bladenboro Wastewater Treatment Plant NPDES Permit No.: NC0026352 Bladen County Dear Sirs, 11 F E B 2 1 2002 DENR - WATER QUALITY POINT SOURCE BIb]iNCii Enclosed you will find the Annual Performance Report for the year of 2001 for the Town of Bladenboro, North Carolina Wastewater Treatment Plant. We believe the report to be complete and accurate. The customers will be notified of the availability of the report through the local newspaper or sewer bills. If you have any questions, please advise. Sincerely, Hydro Management Services Delane Jac I son Town Administrator 305 South Main Street * Post Office Box 455 * Bladenboro, NC 28320 Phone (910) 863-3655 * Fax (910) 863-3738 TOWN OF BLADENBORO WASTEWATER TREATMENT FACILITY ANNUAL PERFORMANCE REPORT For the Calendar Year 2001 prepared: January, 2002 2001 Annual Performance Report for the Town of Bladenboro Wastewater Treatment Facility I. General Information Facility/System Name: Town of Bladenboro Wastewater. Treatment Plant Responsible Entity: Town of Bladenboro Person in Charge/Contact: Delane Jackson Town Administrator PO Box 455 Bladenboro, NC 28320-0455 (910) 863-3655 Description of Collection System or Treatment Process: The Town of Bladenboro owns and operates it's own wastewater treatment system. The wastewater treatment facility consists of two sewage lift stations and a 0.500 MGD wastewater treatment plant. The unit processes in the treatment train include an influent bar screen, pump station, dual activated sludge aeration basins, and two secondary clarifiers. Secondary clarifier effluent is routed through a 0.17 acre aerated lagoon, with subsequent clarification. The flow then travels through a 0.36 acre polishing pond prior to discharge. Effluent disinfectionand dechlorination are provided by Chlorine and Sulfur dioxide, respectively. The wastewater treatment plant's design incorporates an aerated sludge holding tank and sand drying beds for the handling and dewatering of excess biological solids. A sludge hauling contractor periodically removes liquid sludge from the facility and land applies the material on area permitted sites. The treated effluent is ultimately discharged to Bryant Swamp, a Class "C" swamp waters in the Lumber River Basin. II. Compliance Performance The North Carolina Department. of Environment and Natural Resources (NCDENR) regulates the Town of Bladenboro effluent discharge under the National Pollutant Discharge Elimination System (NPDES). The NCDENR issued to the Town a NPDES Permit, which includes water quality limits and sampling and monitoring requirements. The NPDES Permit requires the Town to test more than 14 different constituents in the treated water. The monitoring frequency for these constituents are set at various intervals such as continuous, daily, weekly, monthly, and quarterly. During the reporting period, the Town conducted 2,837 tests of the treated water before it was discharged to the creek. The WWTP achieved a compliance level of 90.5% with the NPDES Permit requirements. Following is a summary of the testing for the parameters, which are, assigned Water Quality standards by the NPDES Permit. Please note the summary does not include parameters, which incorporates a monitoring requirement only, nor does it include daily process control testing. Constituent Number of Test Required Number of Test Conducted* Flow Continuous Continuous Biochemical Oxygen Demand (BOD) 104 134* Total Suspended Solids (TSS) 104 134* Ammonia 52 79 Fecal Coliform 52 82 Chlorine 104 214* Total Nitrogen 4 4 Total Phosphorus 4 5 Mercury 4 11 Oil & Grease 12 10 Toxicity 4 5 *Testing is not required on holidays or during inclement weather, which may affect the number of daily tests conducted. In addition to the required testing, the Town conducted over 2,340 in-house test to ensure the proper operation of the wastewater treatment plant. Following is a summary of permit violations, which occurred during the year: February 2001 Failed the toxicity test on February 21. The sources of toxicity, including Chlorine levels were evaluated. April 2001 The weekly average limit for Fecal Coliform was exceeded. During the month effluent samples were missed which include pH, residual chlorine, temperature, and dissolved oxygen. Also for the streams, dissolved oxygen and temperature were missed. The operator indicated at the time the report was completed failed to record the data. The original data was never received and the data was reconstructed as much as possible by use of the logbook. May 2001 There was incomplete on -site sampling and monitoring of temperature, pH, residual chlorine, and dissolved oxygen. Corrective measures were taken through staff changes. June 2001 The weekly average limit for Fecal Coliform was exceeded. The problem was identified to be with the chlorinatorand piping. The chlorine and SO2 lines were originally fed by one common water line, thus contributing to periodic chlorine problems. The system has been re -plumbed to incorporate independent water lines feeding chlorine and SO2 systems. November 2001 Failed the toxicity test. The balance of chlorination and dechlorination systems was evaluated. December 2001 Failed the toxicity test. The source of the toxicity is under evaluation. III. Certification I have personally examined and am familiar with the information submitted in this document and attachments. Based upon my inquiry of those individuals immediately responsible for obtaining the information reported herein, I believe that the submitted information is true, accurate and complete. I am aware that there are significant penalties for submitting false information. Signed this Delane Jackson (Name) Town Administrator P.44„, (Signature) day of Fe J rut ctr 1 , 2002. `roman of 'Pladenboro TO: Whom it may concern FROM: Town of Bladenboro RE: Collection System DATE: February 11, 2002 There were not reportable overflows/spills for the Town of Bladenboro sewage collection system for the year 2001. Andrew Coleman, ORC Collections System 305 South Main Street * Post Office Box 455 * Bladenboro, NC 28320 Phone (910) 863-3655 * Fax (910) 863-3738