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.
Sand & Gravel General Permit
This permit covers sand and gravel operations, rock quarries, and concrete and asphalt batch plants.
https://ecology.wa.gov/regulations-permits/permits-certifications/sand-gravel-general-permit
Stormwater general permits
We issue permits to protect lakes, rivers, and saltwater from polluted stormwater runoff.
https://ecology.wa.gov/regulations-permits/permits-certifications/stormwater-general-permits
Wastewater Operator Certification Program
We assure wastewater treatment plant operators are competent, trained, and certified.
https://ecology.wa.gov/regulations-permits/permits-certifications/wastewater-operator-certification
Water Treatment Plant General Permit
We regulate drinking water facilities through the use of this permit.
https://ecology.wa.gov/regulations-permits/permits-certifications/water-treatment-plants
Winery general permit
The winery general permit helps prevent possible pollution problems from winery wastewater.
https://ecology.wa.gov/regulations-permits/permits-certifications/winery-permit
Low Impact Development (LID) guidance
Presentations, fact sheets, videos, reports, manuals, and other guidance for Low Impact Development
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/low-impact-development-guidance
Vessel Deconstruction General Permit
This permit defines requirements for pollution prevention while dismantling vessels.
https://ecology.wa.gov/regulations-permits/permits-certifications/vessel-deconstruction-general-permit
Biosolids laws, rules, and support documents
See Washington's biosolids laws, the administrative rules we operate under, and support documents.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/biosolids-laws-rules-and-support-documents
Municipal stormwater permit compliance assurance program
We use a proactive approach to ensuring the permits are implemented and effective.
https://ecology.wa.gov/regulations-permits/compliance-enforcement/municipal-stormwater-compliance-assurance-program
Stormwater monitoring
Stormwater monitoring helps us know how well water quality permits are working.
https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring
Cannabis licensing and the environment
Environmental permits may be required for cannabis growers and processors.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-cannabis-businesses
Air Liquide Hydrogen Plant, Anacortes
We regulate water and hazardous waste activities at the Air Liquide hydrogen plant in Anacortes.
https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/air-liquide
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
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
401 Water Quality Certifications for federal facilities
EPA writes NPDES permits for federal facilities. We issue water quality certifications for permits.
https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification/certifications-for-npdes-federal-permits
Alcoa Wenatchee
We regulate the water and hazardous waste at Alcoa's Wenatchee aluminum smelter in Malaga.
https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/alcoa-wenatchee
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
Columbia & Cowlitz Railway
We regulate the water and hazardous waste activities at the Columbia & Cowlitz Railway in Longview.
https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/columbia-cowlitz-railway
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
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