Search Results - Washington State Department of Ecology

We measure water's width, depth, and speed in rivers and streams to compute streamflow.

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

Water quality monitoring methods for rivers & streams

Learn how we measure water quality in rivers and streams, including methods and parameters.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/water-quality-monitoring/river-stream-monitoring-methods

Pollution prevention (P2)

Learn about pollution prevention (P2) and how you can apply best practices to your business.

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

Puget Sound nearshore

SAM monitors and assesses impacts of stormwater runoff in Puget Sound nearshore environments.

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-status-and-trends/puget-sound-nearshore

SEPA Guidance for Nonproject proposals

Completing SEPA review for "nonproject" proposals.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/non-project-proposals

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

Programmatic EIS

Overview of programmatic environmental review for clean energy.

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

SEPA Frequently Asked Questions

SEPA questions and answers.

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

Products required to meet recycled content minimums

This page explains which products are subject to the law and provides compliance information.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/recycled-content-products

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

Western Washington Phase II Municipal Stormwater Permit

Permit regulates stormwater discharges in the 2nd-most highly populated areas in Western Washington.

https://ecology.wa.gov/regulations-permits/permits-certifications/stormwater-general-permits/municipal-stormwater-general-permits/western-washington-phase-ii-municipal-stormwater

SEPA checklist guidance, Section B: Land & shoreline use

Guidance for Land & shoreline use in Part B of SEPA environmental checklist.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-8-land-shoreline-use

SEPA checklist guidance, Section B: Surface water

Guidance to complete Surface water section for Part B of SEPA environmental checklist.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-3-water/environmental-elements-surface-water

Dam construction & modification guidance

We provide guidance and technical notes for dam construction and modification.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dam-construction-modification-guidance

Puget Sound Nutrient General Permit

The voluntary Nutrient General Permit helps WWTPs reduce nutrient pollution in Puget Sound.

https://ecology.wa.gov/regulations-permits/permits-certifications/nutrient-permit

Annual air quality registration

Emission registration program for industrial air pollution.

https://ecology.wa.gov/regulations-permits/reporting-requirements/air-quality-emissions-reporting/air-quality-registration

Geographic Response Plans (GRPs)

GRPs, a Northwest Area Contingency Plan tool, guide early, localized actions when oil spills happen.

https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/geographic-response-plans-for-oil-spills

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

E-Cycle WA information for processors

Learn how to become a processor for the E-Cycle Washington program and register to become one.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/electronics-ecycle-guidance-and-reports/processors

Spill response plans for Class 2 mobile facilities

We require Class 2 mobile oil-handling facilities in Washington to have a spill response plan.

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

Technical manuals

Requirements for technical manuals for vessels with contingency plans.

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

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

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 checklist guidance, Section D: Nonproject actions

SEPA Guidance for Environmental Checklist Part D

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-d-non-project-actions

SEPA checklist guidance, Section B: Housing

Guidance for completing Housing section for Part B of the SEPA environmental checklist.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-9-housing

SEPA checklist guidance, Section B: Aesthetics

Guidance for completing Aesthetics section for Part B of the SEPA environmental checklist.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-10-aesthetics

SEPA checklist guidance, Section B: Light & glare

Guidance for completing Light & glare section in Part B of the SEPA environmental checklist.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-11-light-glare

SEPA checklist guidance, Section B: Utilities

Guidance to complete Utilities section of Part B of SEPA environmental checklist.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-16-utilities

Common types of dangerous waste

Learn how to manage common types of dangerous waste at your business.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste

Fertilizers

Learn how your business can register, manage, and dispose of fertilizers properly.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/fertilizers

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

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

Measuring Street Sweeping 6PPDQ Whole Environment Load Reductions

Potential for street sweeping to reduce the amount of 6PPDQ on the roadway

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-effectiveness-studies/sweeping-6ppd-load

Model remedies for mine sites

Methods for cleaning up sites contaminated with hardrock mining waste.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/mtca-model-remedies/model-remedies-for-mine-sites

Washington's air quality implementation plan

The State Implementation Plan is an overarching plan to keep Washington's air clean.

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

What to do if you spill oil or hazardous substances

Spills to water must be reported immediately to help reduce impacts to the environment.

https://ecology.wa.gov/regulations-permits/reporting-requirements/spills-if-you-spill

Learning from incidents and spills

We learn from incidents and spills through investigations and share what we learn with others.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/learning-from-incidents-and-spills

Pacific Coast Coal Company

We permit the water quality discharge at the Pacific Coast Coal Company for the John Henry Mine.

https://ecology.wa.gov/regulations-permits/permits-certifications/pccc

Upland Finfish Hatching & Rearing General Permit

This water quality permit covers certain hatcheries that raise finfish species.

https://ecology.wa.gov/regulations-permits/permits-certifications/upland-finfish-permit

Water right permits

Use a pre-application request form before applying for a new or updated water right.

https://ecology.wa.gov/regulations-permits/permits-certifications/water-right-permits

Financing solid waste for the future

We have released several reports assessing solid waste funding mechanisms and potential alternatives.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/solid-waste-financing

Find groundwater publications

Map and text-based methods for searching for groundwater-related reports for Washington.

https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/find-groundwater-publications

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

Puyallup River tributaries effectiveness monitoring

We’re studying bacteria pollution in tributaries to the Puyallup River.

https://ecology.wa.gov/research-data/monitoring-assessment/water-quality-improvement-effectiveness-monitoring/puyallup-river-tributaries

Marine algae & plankton

Marine algae blooms are overgrowths of plankton. They can look like a spill in the water.

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

Watershed health — Lower Columbia update

River and stream habitats in the Lower Columbia Region show some slight downward trends.

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

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