Welcome to the Town of Groton, Connecticut

Water Pollution Control

Assistant Director of Public works - WPCD: Harold Clarke, P.E.
Operations Supervisor: (Vacant)

Maintenance Supervisor: Wendall Smith

170 Gary Court
Groton, CT 06340

For sewer or grinder pump related emergencies please call 860-445-1016

The Town of Groton wastewater treatment system serves approximately 6,350 accounts. The collection system contains 22 pump stations, 136 miles of sewer lines, and 2,500 manholes. The treatment plant is designed to treat 7.5 million gallons per day using an activated sludge process. Solids are collected, dewatered, and shipped for disposal. Nitrogen is removed from the liquid in a two-step aerobic and anaerobic process by beneficial bacteria. The wastewater is disinfected with sodium hypochlorite (basically “Bleach”) before being pumped to an outfall and released in the Thames River. Strict, daily monitoring and laboratory testing continuously assure the treated water we release is safe for people and the environment.

Staff in this division operates the water pollution control wastewater collection system and secondary treatment facility. This facility is fully funded through the collection of user fees. Staff performs the necessary functions to keep the system and facility continuously operational at maximum efficiency and is responsible for the collection, treatment, and discharge of effluent. Employees maintain and repair equipment, instrumentation, facilities, and sewer lines; they trouble-shoot malfunctions; oversee inventory; respond to alarms; and respond to citizen concerns. Numerous samples are collected by staff and bacteriological examination performed.

WPCF Facility Tours

Tours of the treatment facility for educational or informational purposes are available. If you would like to schedule a tour of the WPCF, you can email the WPCF or call 860-441-6784.