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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Ecology/Commerce Watershed Protection & Restoration Proposal

Six-year work plan for restoring and protecting watersheds in the Puget Sound region (2011-2017).

https://ecology.wa.gov/ecology-commerce-watershed-protection-restoratio

Strategic Framework

This document describes Ecology's Strategic Framework

https://ecology.wa.gov/ecology-strategic-framework

EcologyCommentsEPA082819

This is a copy of the testimony that Heather Bartlett gave during the EPA online hearing held Aug. 28, 2019

https://ecology.wa.gov/ecologycommentsepa082819

Ecology Organic Waste Reduction Hierarchy

A text version of the organics waste reduction hierarchy pyramid created by the Washington Department of Ecology to assist businesses and residents in efficiently managing organic wastes.

https://ecology.wa.gov/ecologyorganicsreductionhierarchy

Ecology Agreements 2023

Active agreements as of the first week of October 2022.

https://ecology.wa.gov/ecology-agreements-2023

Eastern WA O&M Worksheet

Use this worksheet as a guide for interviewing MS4 staff and reviewing applicable documents.

https://ecology.wa.gov/eastern-wa-o-m-worksheet

Ecology's response to Petition to Amend the Instream Flow Rule for the Spokane River & Spokane Valley Rathdrum Prairie (SVRP) Aquifer, (WAC 173-557; 173-555) 01/27/15

Ecology's response to Petition to Amend the Instream Flow Rule for the Spokane River & Spokane Valley Rathdrum Prairie (SVRP) Aquifer, 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/ecology-s-response-to-petition-to-amend-the-instre

Economic questions (WAC 173-444) 02/07/20

These are the economic questions to consider during rule development of Chapter 173-444 WAC, Clean Energy Transformation.

https://ecology.wa.gov/economic-questions-wac-173-444-02-07-20

Ecology Water Quality Combined Fiscal Year 2019 Applicant Workshop Guidance for Recipient Files

https://ecology.wa.gov/ecology-water-quality-combined-fiscal-year-2019-ap

Adsorb-it filtration fabric

Ecology letter finding Eco-Tec, Inc. Adsorb-it filtration fabric, when configured properly, can be used as a catch basin insert for stormwater control.

https://ecology.wa.gov/ecologyletter

Ecology's Submittal Letter to EPA (WAC 173-201A) 8/01/16

This is the Ecology's Submittal Letter to EPA for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/ecology-s-submittal-letter-to-epa-wac-173-201a-8

Ecology EPA response July 11 2022

Ecology's July 11, 2022 response to EPA on Lower Yakima Valley GWMA work

https://ecology.wa.gov/ecology-epa-letter-071122

ECS Refining Audit Report

This document includes information about direct processor, ECS Refining, and includes their annual environmental audit report. This audit verifies compliance with the performance standards for direct processors in the E-Cycle WA program.

https://ecology.wa.gov/ecsauditsummary2016

Ecology SVRPA Project Technical Memorandum: Data Report (WAC 173-557; 173-555) 01/27/15

Ecology SVRPA Project Technical Memorandum: Data Report, 2005 “6 minute” Study, Spokane Valley Rathdrum Prairie Aquifer Area, Ecology Memorandum, December 13, 2005 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/ecology-svrpa-project-technical-memorandum-data-r

Eastern Listening Session Agenda

This is the agenda for the listening session for the Eastern Washington reissuance of the municipal stormwater permit being held on April 5, 2018

https://ecology.wa.gov/eastern-listening-session-agenda

East Wenatchee Approved SMP December 2009

Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology

https://ecology.wa.gov/east-wenatchee-approved-smp-december-2009

Eatonville Approved SMP July 2015

Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology

https://ecology.wa.gov/eatonville-approved-smp-july-2015

Eatonville Shoreline Environmental Designation Map

Shoreline Environment Designation maps, which are overlays on local zoning

https://ecology.wa.gov/eatonville-shoreline-environmental-designation-map

Ecology grants - general terms and conditions example

Example of Ecology's general terms and conditions for grant agreements

https://ecology.wa.gov/ecologyexamplegtcgrants-9-12-24

Ecology Agreements 2024

A list of active agreements as of the first week of October 2024.

https://ecology.wa.gov/ecology-agreements-2024