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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2018 Eastern Washington Final Offer List Map

2018 Draft Water Quality Funding Offer List and Intended Use Plan Eastern Washington Water Quality Projects

https://ecology.wa.gov/2018-eastern-washington-final-offer-list-map

2018 Water Quality Financial Assistance Applications

Summary of applications received for the 2018 Ecology Water Quality Combined Funding Program

https://ecology.wa.gov/2018-water-quality-financial-assistance-applicatio

2018 Draft Water Quality Assessment 4B Analyses

This is part of Ecology's submittal to EPA for the 2018 Water Quality Assessment.

https://ecology.wa.gov/2018-draft-wqa-4b-analyses

2018 Deschutes TMDL Cover Letter

This cover letter is included in the TMDL document to address the EPA decisions about this TMDL

https://ecology.wa.gov/2018-deschutes-tmdl-cover-letter

Determinations for Data and Information Submitted

This explains how Ecology used narrative data and information submitted for the 2018 Draft Water Quality Assessment

https://ecology.wa.gov/2018-draft-wqa-determinations-for-data-and-informa

Guidance for Public Review

This is a guide on how to review and comment on the draft Water Quality Assessment

https://ecology.wa.gov/2018-draft-wqa-guidance-for-public-review

2018 Modified Sand & Gravel General Permit

Sand & Gravel General Permit language modified 2018.

https://ecology.wa.gov/2018-modified-sand-gravel-general-permit

Response to comments 2018

This document is the response to public comment period held on the 2018 permit modification.

https://ecology.wa.gov/2018-response-to-comments

2018 EWA Formal Workshops Agenda

Agenda for the 2018 Formal Workshops and Public Hearings in Eastern WA

https://ecology.wa.gov/2018-ewa-formal-workshops-agenda

2017 settlement Agreement Sand & Gravel

Sand & Gravel 2017 settlement Agreement with WACA

https://ecology.wa.gov/2017settlementagreemt

Public meeting table prompts for MS4 reissuance 2017

This is the list of table prompts from the public meeting for the MS4 reissuance process.

https://ecology.wa.gov/2017pubmtgtableprompts

2017 Pretreatment Plan

2017 Coast Seafood Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993011pretrtplan

Coast Pretreatment plan for 2018

Annual pretreatment plan for Zostera Japonica control on commercial clam beds in Willapa Bay.

https://ecology.wa.gov/2018-pretreatment-plan-for-coast

2017 Pretreatment Plan

2017 Taylor Shellfish Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993005pretrtplan

2017 Pretreatment Plan

2017 Wiegardt and Sons Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993006pretrtplan

2017 Pretreatment Plan

2017 Station House Oysters Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993004pretrtplan

2017 Pretreatment Plan

2017 Northern Oyster Company Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993007pretrtplan

2017 Pretreatment Plan

2017 Willapa Bay Shellfish Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993008pretrtplan

2017 Pretreatment Plan

2017 Herrold Fish Oyster Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993009pretrtplan

2017 Pretreatment Plan

2017 Heckes Clam Inc Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993010pretrtplan