Sewer Treatment

Sewer Collection System

Our system contains approximately 241 miles of sewer collection lines including some 2 inch low pressure sewers, up to 36 inch interceptor sewers. We have 21 wastewater pumping stations in our collection system which we maintain. Each year the collection system is expanded, mostly by developers installing new subdivisions, and each year since 1991 we have spent approximately $500,000 on rehabilitating existing sewer lines.

Treatment Plant Operator Magazine Focuses on City of Cookeville

The City of Cookeville Wastewater Treatment Plant was featured in Treatment Plant Operator magazine for December 2020.  Divide and Conquer Describes This Facility's' Approach to Nitrogen and Phosphorus. Innovations including a new and ingenious nutrient-removal process spell consistent success for the operations and maintenance team in Cookeville.

To view the Article Click Here

Hour of Operation

The Wastewater Treatment Plant hours of operation are: Monday-Friday 6am - 2pm.

Wastewater Treatment Plant Information

The Cookeville Wastewater Treatment Plant (WWTP) is a 14 million gallon per day (MGD) activated sludge treatment plant utilizing the Lakeside’s Oxidation Ditch technology. The treatment capacity is up to 14 MGD. The treatment train now consists of grit removal, influent pump station (screw pumps), a sludge selector, oxidation ditches, secondary clarifiers, and ultraviolet light disinfection. The sludge process use 2 sludge holding tanks and a belt press and centrifuge to de-water the sludge. The sludge then is processed through a lime stabilization process to produce a Class A biosolid which is then land recycled and used as a soil amendment. Download the WWTP Process Schematic and Information Brochure (PDF).

WWTP Employees 2022 Cropped 4by3