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.

See more about this collection...

Cleanup Rule Notice No. 2: Invitation to statewide scoping webinar, Tuesday, April 3, 2018

You're invited to join our statewide listening session in-person or online on April 3, 2018, from 1pm to 3:30pm. Webinar starts at 1:30pm.

https://ecology.wa.gov/notice02cleanupruleinvitemar2018

Cleanup Rule exploratory rulemaking process & timeline (as of February 2018)

A notice about our exploratory process and timeline for updating Washington's Cleanup Rule.

https://ecology.wa.gov/noticecleanupruleexplorermfeb2018

Cleanup Rule exploratory rulemaking process & timeline (as of January 2018)

A January 2018 notice of our exploratory process and timeline for updating Washington's Cleanup Rule.

https://ecology.wa.gov/noticecleanupruleexprmjan2018

Notification documentation boilerplate

Boilerplate for notification documentation

https://ecology.wa.gov/notification-documentation-boilerplate

NSIA_ColumbiaRiverkeeper_SaveOurWildSalmon Request for TDG Short-term Mod

A letter from NSIA, Columbia Riverkeeper, and Save Our Wild Salmon requesting a short-term modification to total dissolved gas criteria of WAC 173-201A-200(1)(f)(ii).

https://ecology.wa.gov/nsia_columbiariverkeeper_saveourwildsalmon-request

Northwest region Washington 2018 litter statistics

This document covers 2018 litter recovery statistics for Washington's northwest region.

https://ecology.wa.gov/northwest-region-washington-2018-litter-statistics

November 4, 2020 Agenda - Vessels that do not transmit AIS data

Agenda for November 4, 2020, meeting

https://ecology.wa.gov/november-4-2020-agenda-vessels-that-do-not-transm

November 4, 2020 - Vessels that do not transmit AIS webinar summary

Summary of questions and answers from November 4, 2020, webinar

https://ecology.wa.gov/november-4-2020-vessels-that-do-not-transmit-ais

November 19, 2020 Webinar Slides - Vessel Movement Module Updates and Follow Up

Webinar slides for November 19, 2020, meeting

https://ecology.wa.gov/november-19-2020-webinar-slides-vessel-movement-m

November 19, 2020 - Updates on Vessel Movement Module webinar summary

Summary of questions and answers from November 19, 2020, webinar

https://ecology.wa.gov/november-19-2020-updates-on-vessel-movement-modul

NRWO Youth Application

An application for a crew member position for the Ecology Youth Corps' 2022 summer youth crews.

https://ecology.wa.gov/nrwo-youth-application

Norwegian Encore, Norwegian Cruise Line inspection report

This document is the wastewater discharges inspection report for Norwegian Encore, Norwegian Cruise Line.

https://ecology.wa.gov/norwegian-encore-norwegian-cruise-line-inspection

SEPA Response to Public Comments - North Ranch`

Documentation of Ecology and Mason County response to public comments re new biosolids facility construction by Bio Recycling

https://ecology.wa.gov/northranchseparesponsepubliccomments

NoticetoInterestedParties

This is the notice to interested parties that we sent out to all interested stakeholders.

https://ecology.wa.gov/noticetointerestedparties

NoticeInterestedParties(WAC173219)082317

Notice to interested parties about the Aug. 23, 2017 – October 13, 2017 public comment period.

https://ecology.wa.gov/notice-interested-parties-wac-173-219-08-23-17

NRCS Assessment Procedure for Existing Waste Storage Ponds

Review and assessment process for waste storage ponds

https://ecology.wa.gov/nrcs-assessment-procedure-for-existing-waste-stora

Notice to Withdraw Rulemaking and Immediately Refile 12/16/16

This is the notice to withdraw the earlier announcement to expand the scope of the rulemaking.

https://ecology.wa.gov/notice-to-withdraw-rulemaking-and-immediately-refi

Draft Aquatic Noxious Weed Control NPDES General Permit

Aquatic Noxious Weed Control NPDES General Draft Permit.

https://ecology.wa.gov/noxiousdraftfs100511

Aquatic Noxious Weed Control NPDES General Permit

The general permit covers the indirect discharge of herbicides, adjuvants, and marker dyes into estuaries, marine areas, wetlands, along lake shorelines, rivers, streams, and other wet areas to manage Spartina and freshwater noxious weeds in Washington. An indirect discharge occurs when there may be incidental overspray or dripping of a chemical from the treated plants into waters of the state.

https://ecology.wa.gov/noxiouspermitfinal050712

Aquatic Noxious Weed Control NPDES General Permit Response to Comments

Response to Comments for the Aquatic Noxious Weed Control NPDES General Permit.

https://ecology.wa.gov/noxiousweedappendixdresponsetocomment