Clinton Wastewater Treatment Plant

Image
Sewer - clintonwwtp2

The Clinton Wastewater Treatment Plant provides advanced sewage treatment services to the town of Clinton and the Lancaster Sewer District. MWRA assumed formal operational responsibility for the Clinton plant in 1987.

Since then, MWRA has designed and constructed new primary, secondary, and advanced treatment facilities that incorporate rehabilitated portions of the existing plant with new construction.

The new facilities, designed to meet all current and projected NPDES discharge standards, were completed in 1992. A Phosphorus Reduction Facility was completed in 2017, designed to meet discharge standards in the NPDES permit issued in 2017.

Clinton WTP's Facilities

The plant provides secondary treatment using an activated sludge process in combination with advanced nutrient removal, disinfection and dechlorination.

The major facilities include a headworks, primary settling tanks, digesters, sludge processing, trickling filters, aeration tanks, secondary tanks, and a phosphorus reduction facility. The plant discharges its effluent into the South Nashua River in accordance with the discharge limits of the facility's NPDES permit. Residual materials are pressed and transported to an MWRA owned landfill for disposal. Staff also perform regular monitoring of the landfill site.

Clinton Wastewater Treatment Plant Statistics