Many homes or businesses are on a single water source.
Examples are separate systems serving workers and schools.
Examples include cafes, bars, campgrounds and motels. There are two sources for this data. The DOR personnel indicate that this is not a validated field so errors of classification are possible particularly in the 1970s. If a point could not be located by this method, the data was not entered. Since this data reflects properties, it should not be used to identify wells, but could be used to estimate locations where a property is using public or community water.