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Home My WebLink AboutNC0085812_NOV-2019-LV-0295 Response_20190503Department of Public Works WaterMastewater Division 4600 Goldmine Road Monroe, NC 28110 T. 704-289-1434 F. 704-289-7395 May 3, 2019 Mr. Corey Basinger Regional Supervisor NCDEQ 610 East Center Avenue, Suite 301 Mooresville NC 28115 C,� Dear Mr. Coasiiger 1ivj r This letter is in response to NOV-2019-LV-0295, permit flow limit exceedance at the Tallwood WRF dated April 23, 2019. We contracted with Am -Liner to complete the repairs discovered during the recent SSES performed by Frazier Engineering. This task order includes 22 manhole repairs and 15 clean - out repairs plus installation of inflow dishes. We anticipate this work beginning in the next 2-3 weeks. We performed smoke testing in the Belk Boy Scout Camp's collection system. As a result two defective manholes were repaired, four damaged clean -out caps replaced, and thirteen inflow collectors were installed. We also discovered that a recently installed grease interceptor had settled around 6" allowing direct inflow of groundwater. The Camp had the contractor correct this issue. We are continuing our visual inspections and plug testing around the basin during rain events. We remain is committed to the reduction of I&I and meeting all permit limits. If you have any questions or concerns please contact me at 704-296-4215. Sincerely, " IIb Andrew Neff, PE Water & Wastewater Division Director Union County Public Works Cc: Aubrey Lofton, Interim Public Works Administrator Josh Brooks, Assistant Water & Wastewater Division Director Bart Farmer, WRF Superintendent Greg Morgan, Field Services Superintendent