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HomeMy WebLinkAboutNC0080381_Effluent Toxicity Test Result_20171031Water Resources ENVIRONMENTAL QUALITY October 31, 2017 Mr Russell G Colbath, P E Water Resources Director Post Office Box 69 Monroe, North Carolina 28111-0069 ROY COOPER Governor MICHAEL S REGAN Secretory S JAY ZIMMERMAN Director RECENED1KDE0JDWR NOV 07 2017 \Nater OuE111ty' permitting section SUBJECT Effluent Toxicity Test Results John Glenn WTP NPDES Permit NCO080381 Union County, NC Dear Mr Colbath On October 10, 2017, Roberto Scheller of this Office conducted sampling for whole effluent toxicity at the subject facility Sampling was conducted on October 10th and 12th 2017 Enclosed for your file is a copy of the Division's test results We wish to thank you and the operating staff for assistance regarding this sampling The enclosed report should be self-explanatory, however, should you have any questions, please do not hesitate to contact myself of Roberto Scheller at (704) 235-2204 or roberto scheller@ncdenr gov Sincerely, W Corey Basinger, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ Enclosure Whole Effluent Toxicity Testing Report cc David Rankin, ORC, John Glenn WTP, 2119 Old Camden Road, Monroe, NC 28110 Wastewater Branch File State of North Carolina I Environmental Quality 1 Water Resources I Water Quality Regional Operations Mooresville Regional Office) 610 East Center Avenue, Suite 3011 Mooresville, North Carolina 28115 704 663 1699 Division of Water Resources October 25, 2017 MEMORANDUM To- Corey Basinger _ Water Quality Regional Operations, MRO Through. Cindy A. Moore D---- Supervisor, Aquatic Toxicology Branch (ATB) From: Carol Hollenkamp (� Quality Assurance Officer, Aquatic Toxicology Branch (ATS) Subject- Whole effluent toxicity test results John Glenn WTP NPDES Permit # NIC0080381/001 Union County The aquatic toxicity test using grab samples of effluent discharged from the John Glenn WTP has been completed. John Glenn WTP has a permitted effluent discharge of 0.898 million gallons per day (MGD) entering Stewarts Creek Whole effluent samples were collected on October 10 and October 12 by Roberto Scheller for use in a chronic Cenodaphn►a dubia pass -fail toxicity test. The test passed Toxicity test information follows. Test Type Test Result Test Concentrations Control Survival Control Mean Reproduction Test Treatment Survival Treatment Mean Reproduction First Sample pH First Sample Conductivity First Sample Total Residual Chlonne Second Sample pH Second Sample Conductivity Second Sample Total Residual Chlorine 3 -Brood Cenodaphn►a dubia chronic pass -fail Pass 90% 100% 29 9 neonates 100 30.25 neonates 6.55 SU 242 micromhos/cm 0 23 mg/L 6.89 SU 254 micromhos/cm 0 14 mg/L Test results for the above samples indicate that the effluent would not be predicted to have water quality impacts. These samples were split and tested by Environmental Testing Solutions, Inc.. The chronic Ceriodaphn►a dubia pass/fail test run by Environmental Testing Solutions, Inc. resulted in a pass Please contact Ls if you have any questions or if further effluent toxicity monitoring is desired. We may be reached at (919) 743-8401 Basin. Yadkin -Pee Dee cc- Roberto Scheller (MRO)