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.

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Guidance for Completing the Clean Water funding (CWSRF) Initial Data Reporting Sheet

Guidance to help funding receipients complete the CWSRF Initial Data Reporting Sheet.

https://ecology.wa.gov/guidance-for-completing-the-cwsrf-initial-data-rep

Guidance for Davis-Bacon Compliance

Applicant guidance for water quality loans through the Department of Ecology

https://ecology.wa.gov/guidance-for-davis-bacon-compliance

Governor's letter to the Chehalis Basin Board (non-dam alternative)

A letter from Governor Jay Inslee requesting the exploration of non-dam alternatives to the proposed Chehalis Basin River flood control dam

https://ecology.wa.gov/governor-s-non-dam-alternative-letter-chehalis-ba

Guidance for Marine Net Pen Aquaculture in Washington State

Proposed guidance for net pen aquaculture management and operations in Puget Sound and the Strait of Juan de Fuca.

https://ecology.wa.gov/guidance-for-marine-net-pen-aquaculture-in-washing

Governor Drought Request Letter

Letter from Governor Inslee to Director Watson

https://ecology.wa.gov/governordroughtrequestletter-2021

Guidance for wildlife response

Guidance document for wildlife response

https://ecology.wa.gov/guidance-for-wildlife-response

Governor's letter to the Director (non-dam alternative)

A letter from Governor Jay Inslee requesting the exploration of non-dam alternatives to the proposed Chehalis Basin River flood control dam

https://ecology.wa.gov/governor-s-non-dam-alternative-letter-ecology-and

Guide to Curbside Collection of Electronics Through the E-Cycle Washington Program

This guide addresses recurring questions and issues about curbside recycling service as they relate to the E-Cycle Washington program.

https://ecology.wa.gov/guide-to-curbside-collection-of-electronis-through

Guidance on enforcement of lead, cadmium, and phthalate limits

Guidance on enforcement of lead, cadmium, and phthalate limits for the Children's Safe Product Act

https://ecology.wa.gov/guidance-on-enforcement-of-lead-cadmium-and-phth

Grant scope of work template

Template for state grants to local governments to complete their required shoreline program periodic reviews.

https://ecology.wa.gov/grant-scope-of-work-template

Goldendale Energy Storage Project Section 401 water quality certification

On May 22, 2023, Ecology notified Rye Development that it issued a water quality certification for the Goldendale project.

https://ecology.wa.gov/goldendale-section-401-water-quality-certification

Ecology Water Quality Funded Facility Projects Guidance Document for the CWSRF Federal Reporting Form in EAGL

https://ecology.wa.gov/guidance-document-for-cwsrf-federal-reporting-form

Grocery retailers meeting summary (WAC 173-443) 5/10/22

This is the summary for the 5/10/22 Q&A with grocery retailers about Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/grocery-retailers-meeting-summary-wac-173-443-5-10

Gravity Acquisition and Depth to Basement Modeling (WAC 173-557; 173-555) 01/27/15

Gravity Acquisition and Depth to Basement Modeling of the Spokane Valley and Rathdrum Prairie Aquifer, Northeastern Washington and Northwestern Idaho, John S. Oldow and Kenneth F. Sprenke, Idaho Department of Water Resources, WA Ecology, October 31, 2006 WAC 173-557; 173-555 rulemaking.

https://ecology.wa.gov/gravity-acquisition-and-depth-to-basement-modeling

Ground-Water Flow Model (WAC 173-557; 173-555) 01/27/15

Ground-Water Flow Model for the Spokane valley-Rathdrum Prairie Aquifer, Spokane County, Washington, and Bonner and Kootenai Counties, Idaho, United States Geological Survey, Scientific Investigations Report 2007–5044 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/ground-water-flow-model-wac-173-557;-173-555-01

Grand Coulee Approved SMP March 2013