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Groundwater Overview
The Department conducts a variety of functions critical to the management of Oregon’s water resources.  Staff set standards for water measurements, complete hydrologic studies, enforce water laws, and help water users and local watershed groups identify and solve local water needs.  Information gathered by the division’s studies is managed and analyzed by agency staff and used for water availability assessments, mapping, planning for future water supplies and supporting local efforts.

Groundwater Index

Groundwater Data
Click here to access the well log database, water level plots and data, or locate a well constructor. 

Groundwater Site Information Site
Click here to explore subsurface data managed by the state.  The GSIS is a database housing information pertaining to “groundwater sites”, which are dominantly a cross-referenced subset of the well log database (approximately 7%). In addition to these well locations, the GSIS also includes some spring locations, outcrop sample locations, and stratigraphic section locations.

Well Log Forms, Publication & Newsletter
Click here to access well log forms, special standard forms, Well Said Newsletter, and Water Well Owner's Handbook.
Well Constructors
Click here to find information for continuing education courses, well constructor license exam dates, and access the rules and statutes relating to well construction. 
Well Identification Program
Click here for the well identification application, instructions, and frequently asked questions.
State Water & Monitoring Well Repository
Click here for access to the State’s repository of water well locations.  Information is provided about the State GIS standard for Water & Monitoring Wells, objectives of this work, how to query the repository, and links to other state resources for similar data.
Groundwater Studies & Publications
Click here for information about ground water studies and publications.
Groundwater Advisory Committee
Click here for more information about the committee, members, agendas, and meeting summaries.
Critical Groundwater Allocations
Click here for more information about the critical groundwater allocations.
Neighborhood Groundwater Network 
Click here for more information about this community ground water level measurement program in the Eola Hills Groundwater Limited Area.
Protect your Groundwater Day
Click here for more information about groundwater protection.
Tokatee Falls, Kyle Gorman 2006