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
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
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
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
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
Guidance for contaminated water on construction sites
Information on how to manage contaminated water on construction sites.
https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Stormwater-permittee-guidance-resources/Contaminated-water-on-construction-sites