Press Release Clean Harbors Announces Field Services Center in Seymour, Connecticut Continues to offer environmental services throughout the region SEYMOUR, Conn. – Sept. 24, 2013 – Clean Harbors, North America’s leading provider of environmental, energy and industrial services, today announced that it is opening a new Field Services office here. The office will employ approximately 50 Clean Harbors personnel and serve as a base for a wide range of services throughout the Connecticut region. The Seymour location brings together Field Services operations from two existing Connecticut offices, Bristol and Milford, into a single, state-of-the-art facility to provide environmental services supporting manufacturing, chemical and bio-technical manufacturers/companies, as well as utilities and telecommunications businesses. These services include emergency spill response, plant maintenance and hazardous waste management and collection. Clean Harbors Field Service technicians also staff community hazardous waste collections throughout the state. “The newly renovated state-of-the-art site in Seymour represents a valuable asset for both our customers and employees in Connecticut,” said Joseph Heron, Clean Harbors General Manager of Field Services. “It enables us to incorporate all of our Field Services operations together under one roof at a strategically located facility with easy access to routes 95, 84 and 91. It will serve as an excellent resource for us as we expand our operations and continue to enhance our service offering to the Connecticut marketplace.” Field Fervices employees are being transferred from Bristol and Milford to Seymour. Bristol will remain the base for Clean Harbors’ Technical Services (including Waste Disposal and CleanPack®), Transportation and Logistics, as well as the Wastewater Treatment facility. In addition, Clean Harbors’ Safety-Kleen subsidiary has waste oil collection/recycling service centers in Bridgeport and Portland, Connecticut. The Seymour facility will be the base for the Company’s fleet of service and emergency response vehicles including vacuum and tanker trucks, excavators and roll-off container trucks, boats, boom trailers and other specialized equipment. Occupancy of the new Seymour facility, located at 770 Derby Ave., is expected in October. About Clean Harbors Clean Harbors is the leading provider of environmental, energy and industrial services throughout North America. The Company serves a diverse customer base, including a majority of the Fortune 500 companies, thousands of smaller private entities and numerous federal, state, provincial and local governmental agencies. Through its Safety-Kleen subsidiary, Clean Harbors also is a premier provider of used oil recycling and rerefining, parts washers and environmental services for the small quantity generator market. 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com Press Release Clean Harbors Announces Field Services Center in Seymour, Connecticut Headquartered in Massachusetts, Clean Harbors has waste disposal facilities and service locations throughout the United States and Canada, as well as Mexico and Puerto Rico. For more information, visit www.cleanharbors.com. Contacts: Joseph Costa Vice President, Corporate Marketing Clean Harbors 781.792.5465 costa.joseph@cleanharbors.com 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com