Aquatic weed control technical assistance
We provide advice on identifying, monitoring, and managing invasive freshwater aquatic plants.
https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Aquatic-weed-control-technical-assistance
Stormwater permittee guidance & resources
Resources for general permit application, reporting on monitoring, and technical requirements.
https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Stormwater-permittee-guidance-resources
Combined sewer overflows
We're working to control combined sewer overflows to keep water clean.
https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Combined-Sewer-Overflows
EPA Vessel General Permit
Find out about the EPA Vessel General Permit and tap into helpful resources.
https://ecology.wa.gov/Regulations-Permits/Permits-certifications/EPA-vessel-general-permit-graywater
Certified Erosion & Sediment Control Lead
Find a Certified Erosion & Sediment Control Lead or learn how to become one.
https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Certified-erosion-sediment-control
Fresh Fruit Packing General Permit
Find out about the Fresh Fruit Packing General Permit and get helpful resources.
https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Fresh-fruit-packing-general-permit
Water quality individual permit guidance
Guidance and resources for individual wastewater permits; limit pollution, maintain water quality.
https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Water-quality-permits-guidance
Bridge & Ferry Terminal Washing Permit
This permit protects water from cleaning and painting activities at bridges and ferry terminals.
https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Bridge-and-Ferry-Terminal-Washing-Permit
Environmental laboratory accreditation
Learn how we accredit environmental laboratories and where to find them.
https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Laboratory-Accreditation
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
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
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 quality permit database - PARIS
Our PARIS database lets you access water quality permits, discharge monitoring reports, and more.
https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Water-quality-permits-database
Stormwater Action Monitoring
Western Washington stormwater permittees cooperatively monitor permit effectiveness through SAM.
https://ecology.wa.gov/Regulations-Permits/Reporting-requirements/Stormwater-monitoring/Stormwater-Action-Monitoring
Sand & Gravel General Permit history
Find historical information about our Sand and Gravel General Permit.
https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Sand-Gravel-General-Permit/Sand-Gravel-General-Permit-history
Applying for laboratory accreditation
Learn specific details on how laboratories may seek and maintain accreditation in Washington.
https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Laboratory-Accreditation/Applying-for-laboratory-accreditation
WQWebPortal guidance
Learn how to submit your permit documents electronically through the WQWebPortal.
https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Water-quality-permits-guidance/WQWebPortal-guidance
401 Water Quality Certifications for hydropower licenses
We work with the Federal Energy Regulatory Commission (FERC) licensing process for hydropower dams.
https://ecology.wa.gov/Regulations-Permits/Permits-certifications/401-Water-quality-certification/Certifications-for-hydropower-licenses
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