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HomeMy WebLinkAboutWQCS00010_NOI_NOV2023DV0038_20230131Public Services Department Water & Sewer Mains Division January 31, 2023 Lon T. Snider NCDENR Winston-Salem Regional Office 450 West Hanes Mill Road, Suite 300 Winston-Salem, NC 27105 RE: Notice of Violation & Intent to Issue Civil Penalty - - - Tracking No.: NOV-2023-DV-0038 -- Sanitary Sewer Overflows - December 2022 Incident Numbers 202201789, 202201800 12/9/2022, 12/13/2022 Mr. Snider, NORTH CAROIDWS INTERNATIONAL Cm� NC Department of Environmental Quality Received FEB 01 2023 Winston-Salem Regional Office This letter is in response to the Notice of Violation, Tracking No.: NOV-2023-DV-0038, concerning Incident Numbers 202201789 and 202201800. Incident Number 202201789 was a sanitary sewer overflow (SSO) that occurred on December 9, 2022, at 1601 Lazy Ln. High Point, North Carolina. Once crews were dispatched to the call, they were onsite and working at 3:05 pm. The manhole level dropped at 3:40 pm. The cause of the overflow was grease and debris. The grease was traced to a private apartment complex upstream from the overflow. The area upstream is residential with no restaurants or nonresidential grease contributors. Fats, Oils, and Grease (F.O.G.) educational material was given to the apartment management to give to their residents. Crews also used degreaser when flushing the mains. Cleaning and inspections have been increased at this location. The debris in the line consisted of some large rocks and gravel. The suspected cause of the debris appears to be the recent construction and expansion of a nearby highway. This sewer main has been cleaned and placed on root control since March 2022. Crews removed all solids from the spill site and staked off the surrounding area. They also applied lime for disinfection purposes. This area has also been inspected by sewer camera operators to ensure grease and debris have been removed. City of High Point, P.O.230, 211 South Hamilton Street, High Point, NC 27261 USA Office: 336-883-3691 Fax: 336.822.7071 TDD 336.883.8517 Incident Number 20221800 was an SSO that occurred on December 13, 2022, at 4004 Premier Dr. High Point, North Carolina. The upstream area includes a large, private apartment complex and several restaurants. There have been no previous issues with this sewer main prior to this overflow. The cause of the stoppage was gravel and flushable wipes. The gravel is determined to have come from nearby construction and development. Once the overflow was found at 4:51 pm, crews were on site and had the overflow stopped by 5:26 pm. Sewer crews removed several buckets full of flushable wipes. Crews staked off the spill site and spread lime out over the surrounding area. They then used a skid steer and shovels to dig out the contaminated soil and replaced it with clean stone. Crews traced the creek to ensure there was no fish kill. The creek was also flushed. The sewer camera crew televised the sewer mains upstream and downstream to ensure the removal of the debris. We are currently researching potential options for public educational materials concerning the risks of using flushable wipes and how they cause damage in the wastewater collection system. If you have any questions or require further information, please feel free to call me at (336) 883-3466. Sincerely, Sawa seaWiar`?aary Sarah Beth McAvoy ORC WWCS cc: Robby Stone- Public Services Director, Derrick Boone- Assistant Public Services Director, Joseph Holden - W/S Mains Superintendent, Carrie Hyler-Pretreatment Supervisor, File City of High Point, P.O.230, 211 South Hamilton Street, High Point, NC 27261 USA Office: 336-883-3691 Fax: 336.822.7071 TDD 336.883.8517