All community public water systems within the Guernsey to State Line subbasin utilize groundwater. Based on the listing of community public water systems in the subbasin registered with the United States Environmental Protection Agency, more than 7,479 people rely solely on groundwater sources of supply for their community water systems. The locations, populations served, and sources for these community public water systems are listed in the following table. A map showing locations of municipal wells that are permitted to produce more than 50 gallons per minute (gpm) and public water supply system surface water intakes can be seen by clicking here.

A total of seven community public water systems are located in the Guernsey to State Line subbasin. TorringtonÆs population accounts for 96 percent of the subbasin population that is served by community public groundwater supply systems. Other subbasin towns operate relatively small water supply systems for populations ranging from 46 to 510 people.

Summary of Groundwater Usage for Community Public Water Systems in the Guernsey to State Line subbasin