The Pennsylvania Wellhead Protection Plan outlines implementation of wellhead protection, including area delineation, contaminant identification, contingency planning, and management approaches.
The Michigan Department of Environmental Quality surface water intake protection program (SWIPP) complement the wellhead protection program by protecting drinking water originating from surface water sources.
The New England Interstate Water Pollution Control Commission compiles source water assessment for interstate source waters, and provides GIS data. The document provides information on regulation, delineation, inventory, management, contingency planning, enforcement, and progress measurements.
The Minnesota Wellhead and Source Water Protection Programs prevents contamination by requiring public drinking water supplies to identify critical supply recharge areas and adopt management strategies to protect water supplies. This webpage by the Minnesota Pollution Control Agency provides additional resources and guidance for water systems, including maps of petroleum remediation.