This project consisted of the construction of a complete new facility and an off-site influent pumping station. The main process stream included a new screenings building with two (2) 3.0 MGD cylindrical fine screens and conveyor, two (2) oxidation ditches (Carrousel design), each with two (2) 125 HP slow speed surface aerators, two (2) 110' diameter circular clarifiers, a two-channel ultraviolet disinfection facility, and a re-aeration basin. An administration building was constructed to support plant operations, a laboratory and maintenance requirements.
The sludge process included two (2) 45' diameter circular sludge thickeners, a RAW/WAS building and wet wells, a masonry solids processing building containing two (2) 2.0 meter belt filter presses and a lime/sludge stabilization system required to produce Class A and B sludge. A total of 15 pumps were installed, consisting of submersible or horizontal centrifugal pumps and progressive cavity pumps. Plant control included a data acquisition system with a master terminal unit, two (2) plant site remote terminal units, and a remote radio telemetry unit at the influent pump station. The data acquisition system collects input from more than 25 field devices. The influent pump station located off-site consisted of a cast-in-place concrete wet well containing six 125 HP submersible centrifugal pumps. All motor control and support equipment is housed in an above grade masonry structure.
W. Rogers Company (WRC) drilled, shot, excavated and disposed of approximately 12,000 CY of rock; excavated, placed, redistributed or otherwise disposed of approximately 100,000 CY of earth; installed and tested 12,500' (250 tons) of exterior ductile iron pipe with fittings in sizes from 4" to 42". WRC installed and tested a 48" HDPE outfall line over a distance of 2,350 feet. Approximately 1,000 feet of this line was placed in a wetlands area created by an abandoned surface mine. This required special construction techniques to accomplish the work while minimizing the environmental impact. WRC installed and tested more than 5,000' of small diameter PVC potable water and chemical feed piping, and placed and cured more than 11,000 CY of structural concrete. This required the construction, placement and removal of more than 225,000 SF of forming surface and finishing of approximately the same quantity.
Westside Wastewater Treatment Plant has been recognized by the KY-TN WEA and the EPA for excellence in operation and maintenance.