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Underground Injection Control | Other Ground Water-Related Links |
Ground Water-Related Reports |
Conferences & Events |
Contact Information
Chapter 173-200 WAC: Water Quality Standards for Ground Waters of the State of Washington
Implementation Guidance for Ground Water Quality Standards
Ecology Publication 96-02, revised October 2005
Explains and interprets the standards providing clear direction to promote consistent statewide implementation for all activities which have a potential to degrade ground water quality.
This program protects groundwater quality by regulating the disposal of fluids into the subsurface.
Critical Aquifer Recharge Area (CARA)
This ordinance provides local governments with a mechanism to protect the functions and values of a community’s drinking water by preventing pollution and maintaining supply.Interagency Ground Water Committee
Representatives from state agencies, federal and local governments, tribes, and other public groups with an interest in protecting and preserving the ground water of Washington State. The committee is inactive at this time.Ground Water Assessment in Washington State
Environmental Assessment Program
Information on technical studies of groundwater-related issues.Columbia Basin Ground Water Management Area (GWMA)
A voluntary, local planning effort to work on nitrate in ground water issues, formed by locally elected leaders and citizens of Adams, Franklin and Grant Counties.The Ground Water Story (Note: requires Micromedia FLASH software to view. See webpage for more information.)
An animated lesson about ground water. Courtesy of King County Metro.Homestead Assessment System (HAS) / Farmstead Assessment System (FAS) Programs for WA State
Provides voluntary and confidential water quality/environmental risk assessments for home and/or farm property. The program helps protect the watershed's water quality, including drinking water resources.Land Application Guidance Documents
Guidance on Land Treatment of Nutrients in Wastewater, with Emphasis on Nitrogen
State Waste Discharge to Ground Permits (area under development)
- General Permits
- Sand & Gravel
- Fruit Packing
Ground Water Studies and Reports
Environmental Assessment Program page
Information on ground water assessment studies performed by the Department of Ecology.Ground Water in Washington State Report
Ecology Publication No. 96-007
General summary of ground water in Washington StateNitrate Contamination in the Mid-Columbia Basin Report
Information on nitrate contamination in ground water in the mid-Columbia Basin area, including Adams, Benton, Franklin, Grant, Lincoln, and Whitman counties.Nitrogen Use by Crops and the Fate of Nitrogen in the Soil and Vadose Zone
Ecology Publication No. 00-10-015
Report on a literature review on the fate of residual nitrogen (N) in the soil and vadose zone. Provides background information on nitrogen use by crops and interactions between the soil water and nitrogen balances and crop water and N use.
None at this time.
Contact us for more information
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