Search Results - Washington State Department of Ecology

Emergency Planning & Community Right-to-Know Act

Overview of Washington's EPCRA program and general reporting requirements.

https://ecology.wa.gov/regulations-permits/reporting-requirements/emergency-planning-community-right-to-know-act

Water rights and dam safety policies, procedures & guidance

Policies, procedures & guidance guide our water right and dam safety work

https://ecology.wa.gov/regulations-permits/plans-policies/water-rights-dam-safety-policies-procedures-guidan

Frequently flooded areas: Critical Areas Ordinance

Frequently flooded areas are covered by Critical Areas Ordinances promoting safety from floods.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-floodplains-critical-areas-ordinanc

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

Transportation implementation plans

Find out how we make sure transportation investments are consistent with air quality goals.

https://ecology.wa.gov/regulations-permits/plans-policies/state-implementation-plans/transportation-conformity

Records search checklist

Before buying property, use the records search checklist for due diligence and to know past uses.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-residential-cleanups/records-search-checklist

Proficiency testing requirements

Six proficiency testing sample providers are approved by our laboratory accreditation program.

https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation/proficiency-testing-providers

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

Worldwide Response Resource List

Database of information on oil spill response equipment.

https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/worldwide-response-resource-list

E-Cycle WA 2025 final administrative fee tier schedule

The administrative fee covers the costs associated with implementing the E-Cycle.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/electronics-ecycle-guidance-and-reports/manufacturers/final-administrative-fee-schedule

E-Cycle WA prior years' administrative fee schedules

Administrative fees cover the costs of implementing the E-Cycle WA program.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/electronics-ecycle-guidance-and-reports/manufacturers/prior-years-administrative-fees

Construction stormwater general permit history

CSWGP documentation from previous permit reissuance and appeals processes.

https://ecology.wa.gov/regulations-permits/permits-certifications/stormwater-general-permits/construction-stormwater-permit/permit-history

Lower Columbia urban streams

This monitoring is funded by the municipal stormwater permittees in Clark and Cowlitz counties.

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-status-and-trends/lower-columbia-urban-streams

Seismic measures for Class 1 Facilities

We amended WAC 173-180-330 and 173-180-340 in June 2023.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-oil-industry/facilities-seismic-measures

Print free labels

Free dangerous waste labels you can print from your computer for your business.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/label-dangerous-waste/print-free-labels

Property inspection checklist

Before buying property, use the property inspection checklist to complete an onsite inspection.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-residential-cleanups/property-inspection-checklist

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

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

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

Cosmo Specialty Fibers

We regulate air, water, and hazardous waste at Cosmo Specialty Fibers in Cosmopolis.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/cosmo-specialty-fibers

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

HF Sinclair Puget Sound Refinery

We regulate water and hazardous waste activities at the HF Sinclair Puget Sound Refinery in Anacortes.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/hf-sinclair-puget-sound-refinery

Mint Farm Electricity Cogeneration Facility

We regulate water and hazardous waste for PSE's Mint Farm electricity cogeneration facility.

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

Nippon Dynawave, Longview

We regulate the air, water, and hazardous waste activities at the Nippon Dynawave mill in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/nippon-dynawave-longview

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

Phillips 66 Refinery

We regulate water and hazardous waste activities at the Phillips 66 refinery in Ferndale.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/phillips-66-refinery

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

Tesoro Refinery

We regulate water, hazardous waste, and cleanup at Tesoro Refining & Marketing Company in Anacortes.

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

WestRock, Longview

We regulate air, water, and hazardous waste at the WestRock mill in Longview.

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

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

Solvay Chemicals, Longview

We regulate the water and hazardous waste activities at the Solvay chemical plant in Longview.

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

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

Oil spill drills

We require oil spill drills to test and improve industry contingency plans.

https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/oil-spill-drills

Industrial facility permits and regulation

We regulate air, water, and waste for most of the large industrial facilities in Washington.

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

Clean Energy Siting Council

Tracking the progress of efforts to improve siting projects

https://ecology.wa.gov/regulations-permits/sepa/clean-energy/council

Weyerhaeuser Lumber Mill, Longview

We regulate the water and hazardous waste activities at Weyerhaeuser's lumber mill in Longview.

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

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

Specialty Minerals, Longview

We regulate water and hazardous waste at the Specialty Minerals chemical plant in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/specialty-minerals-longview

Ecology as SEPA lead agency

For some proposals, we lead or co-lead the environmental review.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-at-ecology

SEPA checklist guidance, Section B: Environmental Elements

Checklist guidance Part B Environmental Elements

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements

SEPA guidance

Overview, purpose, and details of SEPA review process.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance

Contanda expansion proposal

Contanda, formerly Westway Terminal, proposed an expansion of the Grays Harbor methanol terminal.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-at-ecology/grays-harbor-terminal-expansion/contanda

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

Pollution prevention services for medium and large businesses

Get pollution prevention technical assistance for your medium or large business.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/pollution-prevention-services/toxics-reduction-assistance

River and stream flow monitoring

We report the amount of water flowing through Washington’s rivers and streams using graphs and maps.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/flow-monitoring

Long-term marine water & sediment data

We gather high quality data to help accurately reflect changes in marine environments over time.

https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/water-column-data

Watershed health — Coastal Region update

River and stream habitat in the Coastal Region may show some improvements, but changes are slight.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/regional-reports/coastal

Watershed health — Mid-Columbia update

River and stream habitat in the Mid-Columbia Region shows slight improvement.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/regional-reports/mid-columbia

Watershed health — Snake River update

River and stream habitat in the Snake River Region shows variable conditions.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/regional-reports/snake-river