Sanitary District Number Two was established by Chapter 516 of the New York State Laws of 1928. The general and legal authority for it to operate is contained in the Civil Divisions Act, Section 202. Geographically the District encompasses the hamlets of Baldwin, Roosevelt, South Hempstead and parts of Uniondale, Rockville Centre and Freeport. The total number of residents and businesses serviced is approximately 55,000 comprising of 16,800 stops.
