The U.S. Environmental Protection Agency has entered into an agreement with a Middlefield-based construction contractor requiring the company to restore wetlands that it filled, and to pay a civil penalty for alleged violations of the Clean Water Act. The EPA said the settlement resolves allegations that Silenex Associates LLC violated federal law when it discharged, dredged and/or filled about 12 acres of freshwater wetlands and other waters at 186 Cherry Lane in Durham. As part of the settlement, Silenex will restore and/or mitigate 8.5 acres of freshwater wetlands and about 3,000 linear feet of the impacted tributaries to their natural condition. In addition, Silenex will pay a civil penalty of $24,500. Silenex, an affiliate of Xenelis Construction Co. Inc., did not immediately respond to a request for comment.

CT contractor ordered to restore wetlands, pay fine for Clean Water Act violations