Regulations & Permits - Washington State Department of Ecology

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

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

Equivalent stormwater manuals for municipal stormwater permits

We provide information for municipal stormwater permittees about equivalent stormwater manuals for Phase I and both the Eastern and Western Washington Phase II municipal stormwater permits.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/stormwater-manuals/equivalent-stormwater-manuals-for-municipal-stormw

Stormwater Action Monitoring - Administering pooled resources

Credible and transparent administration of Stormwater Action Monitoring program.

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/administration

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

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

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

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

Underground storage tank operator certification

Learn how to get the required underground storage tank operator certification.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/ust-owner-and-operator-resources/operator-certification-training

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

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

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

Eagle US 2, Longview

We regulate water and hazardous waste at the Axiall Corporation's Eagle US 2 plant in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/eagle-us-2-llc

Hasa, Longview

We regulate water and hazardous waste activities at the Hasa bleach repackaging plant in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/hasa

Matheson Tri-Gas, Anacortes

We regulate water and hazardous waste activities at the Linde hydrogen plant in Anacortes.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/matheson-anacortes

North Pacific Paper Corporation (NORPAC)

We regulate the water and hazardous waste activities at the NORPAC paper mill in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/norpac

Pacific Functional Fluids

We regulate wastewater and hazardous waste activities at Pacific Functional Fluids in Tacoma.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/pacific-functional-fluids

Puget Sound Energy Ferndale Generating Station

We regulate water and hazardous waste at the PSE Ferndale electricity cogeneration station.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/puget-sound-energy-ferndale-generating-station

WestRock, Tacoma

We regulate water, hazardous waste and cleanup at RockTenn's WestRock pulp and paper mill in Tacoma.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/westrock-tacoma

Water budgets of individual local trees

This study investigates how much water trees use and may help us mitigate stormwater.

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-effectiveness-studies/water-budgets-of-individual-local-trees