Groundwater aquifers are areas of significant volume of groundwater. Recharge areas show the drainage region that provides rain infiltration into the aquifer. Wellhead protection areas are areas that provide groundwater for large public water supply wells. This map shows general soil wetness categories for the town or watershed. Wet or moist areas have limited potential for development because of the likelihood of septic system failure or seasonal flooding.
Drainage basins are the area of land that drain into rivers, streams, ponds, and estuaries.
The wetlands data were developed by RI Department of Environmental Management Narragansett Bay Estuary Program from 1996 aerial photography and include 9 classes of coastal wetlands along with other coastal features. Detailed information on this project and database can be obtained here .