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For Water Systems Operators

Ground Water and Source Water Protection

Information on this site is provided for water systems and operators that utilize groundwater and protect groundwater sources. Also provided are downloadable tools and resources.

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Domestic Well Safety

Find general information about private wells and learn how public health is improving local and state capacity to assess and manage risks associated with private wells


Information about groundwater including groundwater chemistry and hydrogeology, aquifer sensitivity (susceptibility) analysis, and well information.

Groundwater Under the Direct Influence of Surface Water (GWUDI)

Information about groundwater sources located close enough to nearby surface water to receive direct surface water recharge.

Source Water Protection

Information about source water protection including land use planning, source water assessment, and delineation of groundwater drinking water protection areas in Oregon.