Hallsdale-Powell Utility District (HPUD) has completed many improvements to its sewer collection system and its main wastewater treatment facility since the 2004 TDEC Commissioner’s Order. Those actions have eliminated violations at the WWTP and reduced sanitary sewer overflows (SSOs). However, SSO’s continue to occur at a higher than acceptable level. Consequently, as of August 27, 2014 the aforementioned Commissioner’s Order was superseded by Consent Order 14-0044 requiring the elimination of SSO’s by 2024. This Order resulted in the development and implementation of a revised plan to address the SSO’s through a combination of ongoing investigative and rehabilitation initiatives as well as new improvements initiatives including equalization tanks and interceptor replacement.
Mynatt/Rifle Range and Northfield Sewer Rehab Project
Hallsdale-Powell Utility District is continuing to work with WK Dickson and Robert Campbell & Associates on a sewer rehabilitation project that will address issues in the Mynatt/Rifle Range Road area in Halls and the Northfield area in Powell. The Mynatt/Rifle Range Rd area is located in basin HP06 in HPUD’s collection system which has shown to have the most I/I per flow monitoring data. The Northfield subdivision has had issues during wet weather events that have resulted in a chronic overflow due to old clay lines and poor connections.
The project will consist of approximately 2,900 LF of open cut replacement, 9,200 LF of pipe bursting, and 9,200 LF cured in place pipe (CIPP), and the rehabilitation of the manholes and sewer services. This project was scheduled to go to bid late Spring 2023. Due to the delays in funding with the Knox County ARPA, this project was bid in November 2023 and is set to begin in April 2024.