Research & Data
Use this portal to filter and search for all of our scientific information.
Ecology provides the high-quality science that is the foundation of Washington state environmental policy. Our monitoring, assessment, and modeling services provide a data-rich understanding of our state’s land, air, and water. We provide access to that data through reports, databases, maps and user-friendly online tools.
Sprague Lake Community Mtg
Sprague Lake Hydrology Analysis Community Kick-Off Meeting November 22, 2022
https://ecology.wa.gov/sprague-lake
Pasco Basin Groundwater Subarea
Rulemaking Announcement (WAC 173-135)
https://ecology.wa.gov/wac-173-135_-21-01
2022 Applicant Workshop Presentation
Streamflow restoration competitive grants applicant workshop presentation
https://ecology.wa.gov/workshop-presentation
Adopted rule language (WAC 173-219)
This is adopted rule language for WAC 173-219 Reclaimed Water
https://ecology.wa.gov/adopted-rule-language-wac-173-219-01-23-18
Rulemaking proposed language (WAC 173-526) 06/16/10
This is proposed rule language for WAC 173-526 Chapter 173-526 WAC - Cowlitz Water Resources Management Program - WRIA 26
https://ecology.wa.gov/rulemaking-proposed-language-wac-173-526-06-16-1
Rulemaking proposed language (WAC 173-525) 03/02/05
This is proposed rule language for WAC 173-525 Grays-Elochoman Instream Resources Protection and Water Management Program
https://ecology.wa.gov/rulemaking-proposed-language-wac-173-525-03-02-0
Rulemaking proposed language (WAC 173-566) 01/17/2019
This is proposed rule language for (WAC 173-566) Streamflow Restoration Funding 01/17/2019
https://ecology.wa.gov/rulemaking-proposed-language-wac-173-566-01-17-2
Rulemaking proposed language (WAC 173-555) 09/17/14
This is proposed rule language for amendment to WAC 173-555 Water Resources Program in the Little Spokane River basin, WRIA 55.
https://ecology.wa.gov/rulemaking-proposed-language-wac-173-555-09-17-1
Rulemaking proposed language (WAC 173-557) 09/17/14
This is proposed rule language for WAC 173-557 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer.
https://ecology.wa.gov/rulemaking-proposed-language-wac-173-557-09-17-1
SEPA documentation (WAC 173-557) 09/17/14
This is SEPA documentation for WAC 173-557 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010
https://ecology.wa.gov/sepa-documentation-wac-173-557-09-17-14
Scientific Investigations Map 2095 (WAC 173-557; 173-555) 01/27/15
Scientific Investigations Map 2095 – Campbell, A.M. Groundwater Levels in the Spokane Valley-Rathdrum Prairie Aquifer, Spokane County, Washington and Bonner and Kootenai Counties, Idaho, September 2004 for WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.
https://ecology.wa.gov/scientific-investigations-map-2095-wac-173-557;-1
Spokane River Minimum Instream Flow Recommendations (WAC 173-557; 173-555) 01/27/15
Spokane River Minimum Instream Flow Recommendations - Rusty Post, Ecology Watershed Planning August 1, 2012 WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.
https://ecology.wa.gov/spokane-river-minimum-instream-flow-recommendation
Spokane River Temperature Profile, Barker Road to Plantes Ferry Park (WAC 173-557; 173-555) 01/27/15
Spokane River Temperature Profile, Barker Road to Plantes Ferry Park, Guy Gregory and John Covert, Ecology Publication 06-11-005, September 2005 for WAC 173-557 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.
https://ecology.wa.gov/spokane-river-temperature-profile-barker-road-to
Streamflow Trends in the Spokane River and Tributaries (WAC 173-557; 173-555) 01/27/15
Streamflow Trends in the Spokane River and Tributaries, Spokane Valley/Rathdrum Prairie, Idaho and Washington, United States Geological Survey, Scientific Investigations Report 2005-5005 WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.
https://ecology.wa.gov/streamflow-trends-in-the-spokane-river-and-tributa
Surface-Water/Ground-Water Interaction (WAC 173-557; 173-555) 01/27/15
Surface-Water/Ground-Water Interaction of the Spokane River and the Spokane Valley/Rathdrum Prairie Aquifer, Idaho and Washington, United States Geological Survey, Water Resources Investigations Report 03-4239U for WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.
https://ecology.wa.gov/surface-water-ground-water-interaction-wac-173-55
Watershed Management Plan Water Resource Inventory Area 55 (WAC 173-557; 173-555) 01/27/15
Watershed Management Plan Water Resource Inventory Area 55 - Little Spokane River & Water Resource Inventory Area 57 - Middle Spokane River, Prepared by: Spokane County regarding rulemaking for WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.
https://ecology.wa.gov/watershed-management-plan-water-resource-inventory
Summary preliminary draft permit changes Sand and Gravel General Permit.
This document provides a summary of the proposed changes in the Preliminary Draft Sand & Gravel General Permit.
https://ecology.wa.gov/summary-preliminary-draft-permit-changes
2023 workshops about streamflow restoration competitive grants
This is the flyer for 2023 workshops about streamflow restoration competitive grants.
https://ecology.wa.gov/202310streamflowrestgrants
StevensCountyWaterBankProposal
Summary of Water Bank Proposal put forth by Stevens County
https://ecology.wa.gov/water-bank-proposal-summary-stevens-county
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