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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MS4 Permit Secondary Permitee List

List of Secondary Permittee for municipal stormwater permits

https://ecology.wa.gov/ms4-permit-secondary-permitee-list

MOU

Memorandum of Understanding (MOU) between U.S. Bureau of Reclamation and Ecology signed in 2022.

https://ecology.wa.gov/mou

MOU between EPA and Ecology

Memorandum of Understanding between EPA Region 10 and Ecology concerning TPA

https://ecology.wa.gov/mou-between-epa-and-ecology

Monthly dangerous waste generation limits

Quantity exclusion limits (QEL) to determine monthly dangerous waste generator category

https://ecology.wa.gov/monthly-generation-limits-plain-text

Monthly Record Keeping Calendar

Use this form to keep accurate records for the CAFO permit

https://ecology.wa.gov/monthly-record-keeping-calendar

Final MOU WSDA and Ecology 2011

This is the Memorandum of Understanding between Washington Dept. of Agriculture and Ecology. It explains roles and responsibilities of each agency.

https://ecology.wa.gov/mou-agecology-2011final

Crosswalk: Western Washington Phase II and Phase I permits; 2014 Stormwater Management Manual for Western Washington; Municipal Separate Storm Sewer System (MS4) (2015)

Refer to Western Washington Phase II and Phase I Permit references to the 2014 Stormwater Management Manual for Western Washington sections and how they relate to the Municipal Separate Storm Sewer System (MS4) permits

https://ecology.wa.gov/ms4permit-to-swmmww-2015

Invasive Moth Control Permit Fact Sheet

https://ecology.wa.gov/mothfactsheet041204

Invasive Moth Control Permit

https://ecology.wa.gov/mothfinalpermit

Montana GREET model (WAC 173-424) 11-28-22

This spreadsheet is the final Montana GREET model, fuel carbon intensity calculator for Clean Fuels Program, November 28, 2022.

https://ecology.wa.gov/montana-greet-model-wac-173-424-11-28-22

Montana GREET model (WAC 173-424) 07-15-22

This spreadsheet is the Montana GREET model, fuel carbon intensity calculator for Clean Fuels Program, July 15, 2022.

https://ecology.wa.gov/montana-greet-model-wac-173-424-07-15-22

Moderate Risk Waste Work Group Agenda and Notes - September 23, 2014

https://ecology.wa.gov/moderate-risk-waste-work-group-agenda-and-notes

Ewaste recycled data

Electronics generated, recycled and disposed in tons, electronics recycling rate, Washington State.

https://ecology.wa.gov/mrwewastedata

Mercury in biosolids data

Mercury (hg) content of biosolids produced at wastewater treatment facilities in Washington.

https://ecology.wa.gov/mrwmercurydata

Fact Sheet Addendum for the Modification of the Sand and Gravel General Permit

APPENDIX B: FACT SHEET ADDENDUM SAND AND GRAVEL GENERAL PERMIT DRAFT PERMIT MODIFICATION

https://ecology.wa.gov/modificationfactsheet

Monroe Approved SMP August 2008

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

https://ecology.wa.gov/monroe-approved-smp-august-2008

Moses Lake Approved SMP January 2017

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

https://ecology.wa.gov/moses-lake-approved-smp-january-2017

Mount Vernon Approved SMP June 2011

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

https://ecology.wa.gov/mount-vernon-approved-smp-june-2011

Mountlake Terrace Approved SMP November 2013

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

https://ecology.wa.gov/mountlake-terrace-approved-smp-november-2013

Mobile Facility Response Plan Review Checklist

A checklist for Mobile Facility Response Plan Review

https://ecology.wa.gov/mobile-facility-response-plan-review-checklist