PITTSFIELD — An overflowing tank at the city wastewater treatment plant off Holmes Road spilled sludge into the Housatonic River early Tuesday morning. City leaders believe 1,200 gallons of wastewater ...

SUMMERTON — The sludge grew inch by inch with each passing year inside the water tank that fed a nearby housing complex. The blanket of grime was at least a foot deep in some places, and turned ...