Water Treatment Plants
Both facilities improve finished water quality and comply with state and federal drinking water standards.
The John J. Carroll Plant uses ozone as a primary disinfectant and chloramines for residual disinfection, allowing MWRA to meet current and tougher future state and federal water quality standards. The plant has the capacity to treat up to 405 million gallons of water from the Wachusett Reservoir each day, though 270 million gallons per day is the average.
This plant treats drinking water for three Chicopee Valley communities: Chicopee, Wilbraham and South Hadley Fire District #1.
Water enters this plant directly from the pristine Quabbin Reservoir. It is treated with chlorine, for primary disinfection in accordance with the federal Safe Drinking Water Act.
Updated April 25, 2007