The Charles River Pollution Control District (CRPCD) in Medway, Mass., identified a need for improved efficiency, then found a way to fill the gap and pay for a project that ended up costing $850,000.
The 30-year-old 5.7 mgd regional wastewater treatment facility had a major upgrade in 2000 when it added an anoxic selector, fine-bubble aeration, a SCADA system, and cloth disc filters. The latest improvements came after an energy audit funded by the Massachusetts Division of Energy Resources in 2008.
“They approached us to see if we were interested in participating in the Massachusetts Energy Management Pilot for Drinking Water and
