2 plants indexed.
Shirley Dept of Public Works is a secondary wastewater treatment plant in Ayer, Massachusetts, serving 525 people. It discharges 378.54 cubic meters of treated effluent daily.
Ayer Water Pollution Control serves 6,857 residents in Ayer, Massachusetts. The plant discharges treated wastewater into the Nashua River watershed, which flows to the Merrimack River and ultimately the Atlantic Ocean.