AGAWAM -- On Nov. 20, a contractor for Tennessee Gas Pipeline Co. improperly discharged 16,500 gallons of pipeline wastewater from a storage tank to the ground near the company's natural gas compressor station on Suffield Street.
The water, which contained metals and other contaminants, had been used for "hydrostatic testing" of the Connecticut Expansion pipeline project under construction by the Kinder Morgan subsidiary.
The U.S. Environmental Protection Agency on Dec. 12 sent Tennessee notice of an "urgent legal matter" and demanded information about the incident to see if there was a violation of the Clean Water Act. Tennessee responded on Dec. 21. The documents are contained in a biweekly progress report Tennessee filed with the Federal Energy Regulatory Commission, or FERC.