One hundred District customers were selected for this purpose and samples collected from their drinking water taps. Subsequent analysis of these samples for the presence of lead and copper indicates that all one hundred samples met, or were less than current New York State Health Department drinking water standards of 0.015 Parts Per Million for Lead and 1.3 Parts Per Million for Copper. Bowling Green Estates, East Meadow, Levittown, Roosevelt Field, Uniondale Water Districts. The District continues an active program of bi-annual flushing of hydrants to remove any accumulation of dissolved material which may have settled in the main and to minimize the dislocation of water in the Districts distribution system. The District's 3,000 fire hydrants are flushed once in the spring and once in the fall.
Public notification is provided to each district customer prior to commencement of flushing program.
Wells 6B in Levittown was removed from service in February because of excessive Volatile halogenated organic compounds. Wells 1 and 4 in Uniondale were converted to dual Gas and Diesel Fuel. The Department also samples granular activated carbon and packed tower aeration water supply treatment facilities on a monthly basis. A total of 10,845 water quality samples were collected for 1999 for which 52,899 laboratory tests were performed. These tests include various inorganic, organic and microbiological constituents listed in the New York State drinking water standards.