Project Description: The Henderson Water Utility (HWU) operates a combined sewer system which discharges to the Ohio River. On August 7, 2007, HWU entered into a Consent Judgment with regulators with the primary objective being to reduce the discharge of combined sewer to the environment. HWU’s Long Term Control Plan included multiple complex projects which have allowed the utility to meet this objective. Recent improvements to the Henderson Water Utility’s North Wastewater Treatment Plant (WWTP) have increased the peak hydraulic capacity of the WWTP from 15.0 MGD to 25.5 MGD. These improvements included a new headworks, renovation of one aeration basin, one new 160’ diameter final clarifier, reuse of two existing 140’ diameter final clarifiers, new RAS Pumping Station, and new Ultraviolet (UV) Disinfection Facility. In addition to the projects at the WWTP site, two major pumping station and force main upgrades were required in order to deliver the peak flow rate. Design of this 25.5 MGD project included provisions allowing the WWTP hydraulic capacity to be increased to 36.0 MGD with the installation of additional equipment and one additional 160’ diameter final clarifier. With completion of the North Wastewater Treatment Plant Improvements, HWU has finished all major projects under its Long-Term Control Plan, which required an investment of approximately $55 million.
Project Name: North Wastewater Treatment Plant Improvements Long-Term Control Plan
Utility Name and Location: Henderson Water Utility, Henderson, Kentucky
Key Personnel: J. Gregory Davenport, P.E., Stephen C. Lee, P.E. Robert S. Qualman, Jr., P.E., Dwight Phillips, Electrical Engineering
Construction Cost: Approximately $55 million
Date of Completion: n/a
Engineering Services: Planning, Detailed Design, Bidding and Award, Construction Administration, and Resident Observation