NORWELL, Mass.–(BUSINESS WIRE)–Clean Harbors, Inc. (“Clean Harbors” or the “Company”) (NYSE: CLH), announced today that it is commencing a private offering of $600 million of senior notes (the “notes”). Clean Harbors expects the notes to mature in 2034. The Company intends to use the net proceeds from the offering of notes to finance the purchase price of the Company’s previously announced acquisition of EnviroServe, a national provider of environmental and waste management services (the “Env