| description:
|
This polygon shapefile contains Wellhead Protection Areas (WHPAs) for community and non-community, non-transient drinking water supplies in addition to watershed delineations for surface water intakes and groundwater sources under the direct influence of surface water. The data contains wellhead protection area (WHPA) polygons that represent Phase I or Phase II WHPAs based upon existing hydrologic data or advanced studies. NHDES uses a 500-foot radius circle for protection activities associated with sources for transient systems. |