The Clarksville Wastewater System is one of the largest in Tennessee and serves approximately 120,000 people. Below is a brief description of what composes the physical wastewater system and the operations staff who do an excellent job of operating and maintaining it according to the Tennessee Department of Environment and Conservation (TDEC), Water Pollution Division and Environmental Protection Agency (EPA) regulations.

It is our goal and commitment to protect the Cumberland River and its tributaries, the environment, and the general public from pollution during the transmission and treatment of Clarksville’s wastewater.

Wastewater Treatment Plant

The wastewater plant is currently staffed with 24 employees covering the disciplines of operations, maintenance, laboratory and management. Each employee is trained fully to understand the wastewater treatment processes and properly operate the plant.

Wastewater Collection System

The wastewater collection system is comprised of 790 miles of gravity mains, 230 lift stations, 177 miles of force (pressure) mains, and 18,678 manholes. In order to operate and maintain this complex system, Clarksville Gas and Water staffs a total of 35 employees with disciplines including:

  • Industrial Pretreatment
  • Lift Station Operation and Maintenance
  • Management
  • Odor Control
  • Wastewater Construction and Rehabilitation (for Repair and In-House Replacement of Wastewater Lines, etc.)

Support Divisions

The wastewater system is also complimented with two electronics specialists to operate and maintain a complex Supervisory Control and Data Acquisition (SCADA) system. Other wastewater operations support divisions include:

  • Customer Service
  • Finance/Accounting and Purchasing
  • Fleet and Building Maintenance
  • Information Technology
  • Internal Engineering group

State Certification

Note: State certification is required of all designated staff once they are qualified to sit for the state examination.


Wastewater Infrastructure Statistics for Fiscal Year 2022
  • Wastewater produced and treated: 4.89 billion gallons
  • Wastewater plant capacity: 25 million gallons per day (MGD)
  • Wastewater customers: 67,434
  • Force Main: 194 miles
  • Gravity sewer lines: 852 miles
  • Pump stations: 234
  • Pump Station Evaluations: 8,000
  • Sewer main inspected by CCTV: 112,256 ft.
  • Lateral lines inspected: 50,411 ft.
  • Sewer main line washed: 249,788 ft.
  • Lateral line washed: 22,384 ft.
  • Sewer main repaired: 2,418 ft.
  • Sewer collection evaluations: 11,900 ft.