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...

Crew Endurance Management

Manage crew endurance risk factors and protect situational awareness. Publication courtesy of U.S. Coast Guard.

https://ecology.wa.gov/crew-endurance-management

Eastern Washington Clean Sites Initiative accessible list of cleanup sites

The Eastern Washington Clean Sites Initiative funds cleanups to improve residents’ quality of life.

https://ecology.wa.gov/csi-sites-accessible-list

CRITFC Request for TDG STM

This is a letter from the Columbia River Inter-tribal Fish Commission requesting Ecology to modify its total dissolved gas standards on the lower Snake and Columbia rivers.

https://ecology.wa.gov/critfc-request-for-tdg-stm

CRO EYC application

Central Region application for summer employment with the Ecology Youth Corps.

https://ecology.wa.gov/cro-eyc-application

CRO-EYC-Median-Application

Application for median crew openings in the Central Region

https://ecology.wa.gov/cro-eyc-median-application

CRO-EYC-teacher reference form

EYC reference form

https://ecology.wa.gov/cro-eyc-teacher-reference-form

CRO Youth Application

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

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

Crude Carbon Intensity Analysis (WAC 173-424) 11-22

This is the final table of Washington crude carbon intensity analysis for 2017-2020.

https://ecology.wa.gov/crude-carbon-intensity-analysis-wac-173-424-11-22

Crude Carbon Intensity Analysis (WAC 173-424) 06-22

This is the June 2022 table of Washington crude carbon intensity analysis for 2017-2020.

https://ecology.wa.gov/crude-carbon-intensity-analysis-wac-173-424-06-22

Crude Carbon Intensity Analysis (WAC 173-424) 04/22

This is the April 2022 table of Washington crude carbon intensity analysis for 2017-2020.

https://ecology.wa.gov/crude-carbon-intensity-analysis-wac-173-424-04-22

Crude Carbon Intensity Analysis (WAC 173-424) 03/09/22

This is the March 9, 2022 table of Washington crude carbon intensity analysis for 2017-2020.

https://ecology.wa.gov/crude-carbon-intensity-analysis-wac-173-424-03-09

Construction Stormwater General Permit

Stormwater runoff from construction sites can carry muddy water, debris, and chemicals into local waterways. Sediments, chemicals, and debris can harm aquatic life and reduce water quality. Following the requirements in the Construction Stormwater General Permit (CSWGP) results in discharges that help control and reduce water pollution.

https://ecology.wa.gov/cswgpfinalmod2017

Fact Sheet Addendum with Response to Comments for the CSWGP Modification

Fact Sheet Addendum for the CSWGP Modification dated March 22, 2017 (includes Response to Comments)

https://ecology.wa.gov/cswgpmod2017responsetocomments

2015 Construction Stormwater General Permit Public Comments / Response to Comments

Public Comments / Response to Comments for the 2015 Construction Stormwater General Permit Reissuance process

https://ecology.wa.gov/cswgp2016responsetocomments

2010 Construction Stormwater General Permit Fact Sheet

Detailed explanation of the 2010 Construction Stormwater General Permit

https://ecology.wa.gov/cswgpfs072110

Public Workshop PowerPoint Slideshow for 2015 Construction Stormwater Permit Reissuance

The 2015 Construction Stormwater Permit Reissuance Public Workshop PowerPoint Slideshow explains the process, schedule, and proposed changes to the permit.

https://ecology.wa.gov/cswgppblcwrkshp2015

2010 Construction Stormwater General Permit

This is the previous Construction Stormwater General Permit, effective from January 1, 2011 to December 31, 2015.

https://ecology.wa.gov/cswgppermit120110

2010 Construction Stormwater General Permit Response to Comments

Response to Comments on the 2010 Construction Stormwater General Permit reissuance.

https://ecology.wa.gov/cswgpresponse120110

Crosswalk of State and Federal Regulations (WAC 173-360A) 06/30/23

This document identifies each state fund requirement in the proposed amendment of WAC 173-360A, Underground Storage Tank Regulations, and the corresponding requirement in the current federal regulations.

https://ecology.wa.gov/crosswalk-of-state-and-federal-regulations