Regulations & Permits
Use this portal to filter and search for all of our regulatory information.
We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.
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Water quality
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
Aquatic Mosquito Control General Permit areas of restricted larvicide and adulticide use
Areas of restricted larvicide and adulticide use for Aquatic Mosquito Control General Permit.
https://ecology.wa.gov/03042015esalocations
Aquatic Mosquito Control General Permit Fact Sheet
Fact Sheet for the Aquatic Mosquito Control General Permit.
https://ecology.wa.gov/03042015factsheet
Aquatic Mosquito Control General Permit application (Notice of intent)
Application (Notice of intent) for the Aquatic Mosquito Control General Permit
https://ecology.wa.gov/03042015noi
Aquatic Mosquito Control General Permit SEPA checklist
SEPA checklist for the Aquatic Mosquito Control General Permit
https://ecology.wa.gov/03042015sepachecklistt
Aquatic Mosquito Control General Permit SEPA determination of non-significance
SEPA DNS (determination of non-significance) for the Aquatic Mosquito Control General Permit
https://ecology.wa.gov/03042015sepadns
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
Draft Zostera japonica Management General Permit application (Notice of intent)
Draft Zostera japonica Management General Permit Notice of Intent (NOI)
https://ecology.wa.gov/01022014draftzjnoi
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Comments on first draft guidance on a Stormwater Control Transfer Program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
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
Zostera japonica Management General Permit Fact sheet
Draft detailed explanation of Zostera japonica Management General Permit.
https://ecology.wa.gov/01022014zjdraftfactsheet
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
1121 results
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