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.
10-6-19 Agency comments on federal rulemaking
This is the agency's official written comments submitted to EPA about the federal rulemaking to repeal our state water quality standards.
https://ecology.wa.gov/10-6-19-agency-comments-on-federal-rulemaking
2005 to 2012 SWMMWW Redlines
This shows which sections changed between the 2005 and 2012 Stormwater Management Manual for Western Washington with edits marked with redline tracked changes.
https://ecology.wa.gov/2005-2012swmmwwredlines
Historic 2010 Upland Fin-fish Hatching and Rearing General Permit
This is the 2010 general permit for upland fin-fish hatching and rearing general permit. This is a National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge General Permit for discharges to water associated with upland fin-fish hatching and rearing activities.
https://ecology.wa.gov/2010permitfinal
2012-2014 Stormwater Management Manual for Western Washington - Chart of Changes
Chart of Changes between the 2012 and 2014 SWMMWW
https://ecology.wa.gov/2012-2014-swmmww-chartofchanges
Aquatic Mosquito Control General Permit SEPA final determination of non-significance
Final SEPA determination of non-significance for the Aquatic Mosquito Control General Permit.
https://ecology.wa.gov/05112015sepadnsfinalrev
Stormwater Control Transfer Program first draft comments
Comments on first draft guidance on a Stormwater Control Transfer Program
https://ecology.wa.gov/1st-draft-comments
2011 Fact Sheet Sand and Gravel General Permit
Historical document for the Sand and Gravel General Permit.
https://ecology.wa.gov/2011-fact-sheet
Public meeting powerpoint for webinar at Ecology on MS4 reissuance
Powerpoint for public meeting in October 2017 of Reissuance of Phase I &Western Washington Phase II Municipal Stormwater Permits.
https://ecology.wa.gov/10-12-17prelimdraft_webinarfinal
Agenda for Introduction to the Preliminary Drafts of the Phase I and Western Washington Phase II Municipal Stormwater Permits.
This is an agenda of a meeting presenting preliminary draft sections of the Permits and the Stormwater Management Manual for Western Washington.
https://ecology.wa.gov/10-12-17pubmtgagenda
Errata sheet for the Zostera japonica Management FEIS
2014 Corrections and Clarifications on the Zostera japonica Management General Permit.
https://ecology.wa.gov/03282014zjfeiserrata
Phase II only S5.C.X Source Control
Western WA Phase II Municipal Stormwater Permit Preliminary Draft Permit Section: Source Control S5.C.X (proposed new section to add).
https://ecology.wa.gov/10-3-17_prelimsourcecontrolfinal
Municipal Stormwater Phase II Permit S5.C.1 Education and Outreach permit section preliminary draft
Public Education and Outreach (Phase II) Preliminary draft “fact sheet” and permit language.
https://ecology.wa.gov/10-3-17prelim_phi_ed_o
Municipal Stormwater Phase I Permit S5.C.10 Education and Outreach permit section preliminary draft
Public Education and Outreach (Phase I) Preliminary draft “fact sheet” and permit language.
https://ecology.wa.gov/10-3-17prelim_phi_ed_o-1
S5.C.4/S5.C.5 Controlling Runoff – site and subdivision scale
2019 Western Washington Municipal Stormwater preliminary draft permit language for S5.C.4/S5.C.5 Controlling Runoff – site and subdivision scale.
https://ecology.wa.gov/10-3-17prelimcontrollingrunoff
Preliminary draft language for S5.C.2/S5.C.3 Mapping for MS4 permits
2019 Western Washington Municipal Stormwater Permit preliminary draft language for S5.C.2/S5.C.3 Mapping.
https://ecology.wa.gov/10-3-17prelimdraftmappingfinal
S5.C.8/S5.C.3 IDDE tracking and reporting
Preliminary draft permit section for the Phase I and Western Washington Phase II Municipal Stormwater Permit language on IDDE tracking and reporting.
https://ecology.wa.gov/10-3-17prelimidde_final
S8. Monitoring
Proposed 2019-2024 Phase I MS4 permit language for S8. Monitoring and Assessment.
https://ecology.wa.gov/10-3-17prelims8_costappendixfinal
2011 to 2016 Sand and Gravel Permit comparison
This shows the changes for the 2011 to 2016 Sand and Gravel General Permit.
https://ecology.wa.gov/2011-to-2016-permit-comparrison
Construction Stormwater General Permit (2005)
2005 Construction Stormwater General Permit.
https://ecology.wa.gov/2005cswgp
Construction Stormwater General Permit Reissuance Response to Comments (2005)
2005 Construction Stormwater General Permit Reissuance Response to comments.
https://ecology.wa.gov/2005responsetocomments
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