The Metropolitan District (MDC) is a non-profit municipal corporation chartered by the Connecticut General Assembly in 1929 to provide potable water and sewerage services on a regional basis.Today, the MDC provides quality water supply, water pollution control, mapping, and household hazardous waste collection to eight member municipalities -- Bloomfield, East Hartford, Hartford, Newington, Rocky Hill, West Hartford, Wethersfield and Windsor -- and to portions of other towns in the region.The mission of the MDC is to provide our customers with safe, pure drinking water, environmentally protective wastewater collection and treatment and other services that benefit the member towns