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.
Step two: Is it exempt or excluded?
Determine if your waste is excluded from the dangerous waste regulations.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/is-it-exempt-or-excluded
Underground Injection Control (UIC) program: Chapter 173-218 WAC
We regulate discharge of injection well fluids to protect against groundwater contamination.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/underground-injection-control-program
Online UIC injection well registration
We provide online access to register new and existing underground injection control (UIC) wells.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/underground-injection-control-program/register-uic-wells-online
Underground injection control well registration requirements & information
Get Underground Injection Control (UIC) well registration requirements and information.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/underground-injection-control-program/uic-registration-requirements-information
Heat pump & air conditioning return flow UIC wells
Groundwater circulated through a heat pump/air conditioning (HAC) system has to meet requirements.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/underground-injection-control-program/heat-pump-air-conditioning-return-flow-wells
Hydrologic performance of bioretention
Study of the oldest bioretention facilities to evaluate infiltration performance.
https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-effectiveness-studies/bioretention-infiltration
Aquatic & Invasive Species Control general permit
We have issued a combined state agency general permit.
https://ecology.wa.gov/regulations-permits/permits-certifications/aquatic-pesticide-permits/aquatic-invasive-species-control-general-permit
Aquatic Mosquito Control General Permit
This permit allows the use of insecticides to control mosquitoes.
https://ecology.wa.gov/regulations-permits/permits-certifications/aquatic-pesticide-permits/aquatic-mosquito-control
Aquatic Noxious Weed Control General Permit
We issue this general permit to manage freshwater and marine noxious weeds in Washington.
https://ecology.wa.gov/regulations-permits/permits-certifications/aquatic-pesticide-permits/aquatic-noxious-weed-control
Aquatic Plant & Algae Management General Permit
This permit covers the in-water and shoreline management of plants, algae, and phosphorus.
https://ecology.wa.gov/regulations-permits/permits-certifications/aquatic-pesticide-permits/aquatic-plant-algae-management
Burrowing shrimp control (Imidacloprid)
We are denying a request to use imidacloprid on shellfish beds in Willapa Bay & Grays Harbor.
https://ecology.wa.gov/regulations-permits/permits-certifications/aquatic-pesticide-permits/burrowing-shrimp-control-imidacloprid
Irrigation System Aquatic Weed Control permit
This permit regulates the use of pesticides to manage plant and algae growth in irrigation systems.
https://ecology.wa.gov/regulations-permits/permits-certifications/aquatic-pesticide-permits/irrigation-system-aquatic-weed-control
Zostera japonica management on commercial clam beds in Willapa Bay General Permit
This permit allows the use of an herbicide to control non-native eelgrass in Willapa Bay.
https://ecology.wa.gov/regulations-permits/permits-certifications/aquatic-pesticide-permits/zostera-japonica-eelgrass-management
Sprague Lake Community Mtg
Sprague Lake Hydrology Analysis Community Kick-Off Meeting November 22, 2022
https://ecology.wa.gov/sprague-lake
Focus on: Climate change and health equity
A joint Ecology and Health focus sheet exploring the health and community impacts of climate change.
https://ecology.wa.gov/201210-climate-justice-focus-sheet
2020-21 Project Awards: Chehalis River Basin Aquatic Species Restoration Plan
Descriptive list of state grant awards for aquatic habitat restoration projects in the Chehalis Basin
https://ecology.wa.gov/2020-21-asrp-project-list
KeepingYourBeachClean
An infographic with tips on how to keep your beach clean.
https://ecology.wa.gov/beach-infographic-print-version
2016 Municipal Solid Waste Map
This spreadsheet lists data for the amounts of municipal solid waste produced by each Washington county and where that waste is land filled.
https://ecology.wa.gov/2016-msw-map-082319
ROD ROD BENT 17-03 July 17 2018
A Report of Decision from the Benton County Water Conservancy Board
https://ecology.wa.gov/rod-rod-bent-17-03-july-17-2018
Bonneville Power Administration TSD permit (PDF)
A permit issued in 2011 allowing the Bonneville Power Administration to treat, store and dispose of dangerous waste.
https://ecology.wa.gov/bonneville-power-administration-tsd-permit
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