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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Fire Mountain Farms site map

Site map for Fire Mountain Farms' proposed biosolids land application site

https://ecology.wa.gov/site-map-d4e8515a558ce8e1addb3ddeb6f0f563

Fire Mountain Farms site specific land application plan

Site specific land application plan for Fire Mountain Farms' proposed biosolids land application site

https://ecology.wa.gov/site-specific-land-application-plan

Sample VBAP-ECOPRO submission letter

Vessel companies applying for Voluntary Best Achievable Protection (VBAP) or Exceptional Compliance Program (ECOPRO) status may use this template to create their submittal letter.

https://ecology.wa.gov/sample-vbap-ecopro-submission-letter

Stipulated stay March 2022

This is a stipulated partial stay from March 2022 for the Nutrient General Permit

https://ecology.wa.gov/stipulated-stay-march-2022

Statement of Basis for Proposed Permit Modification of WTP Permit

The Statement of Basis provides information on Ecology’s decision to modify the WTP Permit, focusing on the operations of the Analytical Laboratory.

https://ecology.wa.gov/statement-of-basis

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

Splash Boxx Functional Equivalency

Ecology finds Splash Boxx treatment system is functionally equivalent to a Bioretention Facility (rain garden) when using approved Bioretention Soil Media for stormwater management and must adhere to the guidelines for Bioretention areas found in Best Management Practice T7.30.

https://ecology.wa.gov/splash-boxx

Aquatic Invasive Species Management General Permit Response to Comments

Response to Comments for the Aquatic Invasive Species Management General Permit.

https://ecology.wa.gov/rtc08082016

Aquatic Noxious Weed Control NPDES General Permit Shoreline Posting Templates

Shoreline Posting Templates for the Aquatic Noxious Weed Control NPDES General Permit.

https://ecology.wa.gov/shorelinepostingtemplatesnoxweed

Aquatic Noxious Weed Control NPDES General Permit Shoreline Posting Templates - Spanish

Shoreline Posting Templates for the Aquatic Noxious Weed Control NPDES General Permit - SPANISH.

https://ecology.wa.gov/shorelinepostingtemplatesnoxweed_spanish

Sediment Impact Zone Application for Grays Harbor

Burrowing shrimp document: Sediment Impact Zone Application for Grays Harbor

https://ecology.wa.gov/sediment-impact-zone-application-for-grays-harbor

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

Settlement Agreement for CSWGP

CSWGP October 27, 2016 Settlement Agreement

https://ecology.wa.gov/settlement15-142-11-1-16

Sand & Gravel General Permit 2016

The Sand and Gravel General Permit regulates discharges of process water, stormwater, and mine dewatering water into waters of the state.

https://ecology.wa.gov/sandandgravelpermit2016

Sand & Gravel General Permit Summary of Changes

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

https://ecology.wa.gov/summarypreliminarydraftpermitchanges

2018 Pretreatment Plan Station House Oyster

2018 pretreatment plans on control for commercial clam beds in Willapa Bay for Station House Oyster.

https://ecology.wa.gov/station-2018-pretreatment-plan

2017 Annual Report for Station House Oyster

This annual report covers Zostera Japonica controls on commercial clam beds in Willapa Bay for Station House Oyster.

https://ecology.wa.gov/station-3004-2017-annual-report

Snohomish County 2005 CSWGP Appeal

2005 Construction Stormwater General Permit appeal from Snohomish County.

https://ecology.wa.gov/snohomishcounty