
Title 5/Septic Systems Over 30% of the homes in Massachusetts have on-site wastewater systems, as do small businesses and institutions that are located in unsewered areas.
Title 5 of the State Environmental Code, 310 CMR 15.000, is a regulation that protects you and your community. Title 5 requires the proper siting, construction, and maintenance of all on-site wastewater disposal systems. On-site systems that are not properly located and maintained can contribute pathogens and nutrients to surface and ground waters, endangering drinking water supplies, wildlife habitat, and surface water bodies. More