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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TDG Draft EIS and Short-term Modification Language February 2019 Hearing Presentations

This is a PDF of the PowerPoint presentations provided at the February 2019 hearings on the draft EIS and short-term modification language for total dissolved gas criteria in WAC 173-201A.

https://ecology.wa.gov/tdg-draft-eis-and-short-term-modification-language

TDG short term modification administrative order

Signed short term modification administrative order for total dissolved gas criteria

https://ecology.wa.gov/tdg-short-term-modification-administrative-order

Submittal Crosswalk (WAC 173-201A) 8/01/16

This is the Submittal Crosswalk for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/submittal-crosswalk-wac-173-201a-8-01-16

Summary of WWHM2012 updates

This is a summary of all of the updates to the 2012 model from the WWHM3

https://ecology.wa.gov/summary-of-wwhm2012-updates

Summary Changes Addendum Chapter 173-230

This is a document that summarizes the changes in the rule language to help crosswalk from the old rule language

https://ecology.wa.gov/summarychangesaddendum

Stromwater Manual Handout 4

UIC guidance for the stormwater manual meeting.

https://ecology.wa.gov/swm-4

Stormwater Manual Update Agenda

Meeting agenda to help improve the manuals.

https://ecology.wa.gov/swm-agenda

Table 602 and Table 612 with track changes (WAC 173-201A) 07/17/18

This is a supporting document showing the proposed edits to Chapter 173-201A WAC Table 602 and Table 612 in track changes.

https://ecology.wa.gov/table-602-and-table-612-with-track-changes-wac-17

Boatyard general permit SWPPP template

Example template of a Stormwater Pollution Prevention Plan (2012) This template was prepared by the Northwest Marine Trade Association (NMTA) for use by its boatyard members. NMTA has granted the Department of Ecology permission to make this form available to all interested parties.

https://ecology.wa.gov/swppptemplate

Boatyard general permit SWPPP Worksheets

Examples of Stormwater Pollution Plan Worksheets (2007)

https://ecology.wa.gov/swpppworksheets

Stormwater Manual Handout

Redevelopment handout for the manual improvement meeting.

https://ecology.wa.gov/swm-handout-1

Stormwater Manual Handout 2

Flow chart for stormwater manual improvement.

https://ecology.wa.gov/swm-handout-2

Stormwater Manual power point

This presentation shows intended improvements for the manual.

https://ecology.wa.gov/swm-powerpoint

SWMMEW Winter Newsletter 2018-19

This newsletter gives a description of the Stormwater Management Manual Update for Eastern WA and describes the major changes.

https://ecology.wa.gov/swmmew-winter-newsletter

Supplemental Information for WGHOGA NPDES permit application

Burrowing shrimp document: Supplemental Information for WGHOGA NPDES permit application

https://ecology.wa.gov/supplemental-information-for-wghoga-npdes-permit-a

SWPPP CSWGP

Word document template for creating a stormwater pollution prevention plan (SWPPP)

https://ecology.wa.gov/new-swppp

Stormwater Work Group recommendations for second round effectiveness studies

This letter from the SWG chair outlines the funding recommendations for the second round of effectiveness studies for Stormwater Action Monitoring

https://ecology.wa.gov/swg-esrecommendations06072017

Sand & Gravel General Permit Summary of Changes

Summary of Changes in the Preliminary Draft Sand & Gravel General Permit

https://ecology.wa.gov/summarypreliminarydraftpermitchanges

2017 Annual Report for Taylor Shellfish

This annual report reviews Zostera Japonica controls on commercial clam beds in Willapa Bay for Taylor Shellfish.

https://ecology.wa.gov/taylor-3005-annual-report

2018 pretreatment plan for Taylor

Annual pre-treatment plan for Zostera japonica control on commercial clam beds in Willapa Bay for Tylor Shellfish

https://ecology.wa.gov/taylor-pretreatment-plan