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Home My WebLink AboutWQCS00016_Other Correspondence_20190617MOORESVILLE REGIONAL OFFICE June 17, 2019 North Carolina Department of Environment Quality Mooresville Regional Office 610 East Center Avenue, Suite 301 Mooresville NC 28115 ATN: W.Corey Basinger, Regional Supervisor Water Quality Regional Operations Section Mooresville Regional Office Division of Water Resources, NCDEQ RE: Notice of Violation & Intent To Issue Civil Penalty Tracking Number: NOV — 2019 —DV - 0239 Sanitary Sewer Overflows — April 2019 Collection System Permit No. WQCS00016 Albemarle Collection System Stanly County Dear Mr. Basinger, The purpose of this letter is to provide additional information for the consideration in the above referenced matter in accordance with your letter dated May 28th, 2019 and received by the City of Albemarle Collections ORC on June 17th, 2019. This matter relates to the sanitary sewer overflows that the City of Albemarle experienced during the month of April 2019. These overflows are associated with I&I / heavy rain events 04/08/2019 Incident number 201900696 was associated with a lateral sewer service that connects 1214 N 2nd Street to our sewer system. Incident number 201900695 is associated with a manhole in the parking lot of 1436 US Hwy 52 north. The above mentioned SSO's are in a low laying area of our collection system. During a time of heavy rains this line becomes capacitated and has hydraulic issues which cause the severity of the I&I to cause sso's at this point in our system. The City of Albemarle has a Smart cover system installed on the manhole associated with incident number 201900695. During times of rain the Systems ORC and back up have real time alerts sent via email and text message to try and lessen the impact of the SSO's. The ORC and back up were dispatched on site at the call of the Smart cover system alarm. Crew were dispatched to try and lessen the impacts buy using city vactor truck to remove 6000 gallons from upstream manhole to stop SSO . Crews then used truck to clean up debris in parking lot in both areas by what is outlined in the City of Albemarle spill response procedure. Incident number 201900696 at 1214 N2nd Street is just downstream of the above mentioned SSO and by the removal of water from the upstream manhole was able to stop the SSO here. SSO was cleaned up by crews in which they were able to rake up debris and lime and straw area around cleanout. Crews also graveled customers drive were spill had occurred . In summary all of the above events were due to large amounts of rain that the City of Albemarle experienced during these dates. These SSO's are also in an area of the system that is hydraulically challenged due to bottle necking and several 90 degree turns. This will be part of our Phase 2 dig and replace which will address I&I in this area and do away with the hydraulic challenges in this area thus improving flow and cutting out substantial amounts of I&I. This project is slated to start in July 151. Funding is in place and the City of Albemarle looks forward to seeing the outcome of this project for the betterment of our collection system. The City of Albemarle appreciates the opportunity to provide this information for consideration in this matter. It is hoped that we will be received favorably. If there are any more questions or information that is needed, please feel free to contact this office. Sincerely, TWUn - WvC .sov,,, Collection System ORC 704-961-6149 City of Albemarle