The MDC is a nonprofit municipal corporation chartered by the Connecticut General Assembly in 1929. The MDC provides water, sewer and household hazardous waste collection services to its member municipalities: Bloomfield, East Hartford, Hartford, Newington, Rocky Hill, West Hartford, Wethersfield and Windsor. In addition, under a series of special agreements, the District supplies treated water to portions of Glastonbury, South Windsor, Farmington and East Granby.