Search Results - Washington State Department of Ecology

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

Toxics monitoring in consumer products

We design studies to test for toxic chemicals in consumer products.

https://ecology.wa.gov/research-data/monitoring-assessment/consumer-products-testing

Stream biological monitoring

We evaluate the health of rivers and streams by studying multiple aquatic communities.

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

E-Cycle WA information for transporters

Find out whether you qualify as an E-Cycle Washington transporter and what the requirements are.

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

Washington Emissions Inventory Reporting System (WEIRS)

Submit your emissions data using WEIRS.

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

Bioretention effectiveness for 6PPD and PFAS

Treatment Effectiveness of Stormwater Facility with HPBSM for Toxic Chemicals

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-effectiveness-studies/bioretention-effectiveness-for-6ppd-and-pfas

Evaluation of Best Management Practices Maintenance Conditions

Study evaluating the maintenance thresholds for select best management practices for stormwater.

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-effectiveness-studies/bmp-maintenance-conditions

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

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

Vapor intrusion

We have guidance that helps you evaluate and respond to vapor intrusion at your MTCA cleanup site.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/vapor-intrusion-overview

Overview of compliance & enforcement at Ecology

View the compliance and enforcement authority we have, and what actions we have recently taken.

https://ecology.wa.gov/regulations-permits/compliance-enforcement/overview-of-compliance-enforcement

Solid waste & recycling data

View data on solid waste collection and recycling in Washington.

https://ecology.wa.gov/research-data/data-resources/solid-waste-recycling-data

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

Data products & reports

See example data products, get access to data, and view reports and presentations.

https://ecology.wa.gov/research-data/monitoring-assessment/coastal-monitoring-assessment/data-products

Local Emergency Planning Committees (LEPCs)

Information on how to contact state and local emergency planning officials.

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

Local solid and hazardous waste planning

Solid and hazardous waste management plans that local governments are required to submit to us.

https://ecology.wa.gov/regulations-permits/plans-policies/washington-state-waste-plan/local-waste-planning

Puget Small Streams study

Stormwater Action Monitoring's (SAM) receiving waters study on Puget Sound's small streams.

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

Fish consumption rate: Technical support document

This 2013 technical support document estimates how much fish Washington residents are eating.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/fish-consumption-rates-technical-support

Characterization of Stormwater Transport of Contaminants of Emerging Concern

We work with City of Tacoma to look for several contaminants of emerging concern in stormwater.

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-effectiveness-studies/stormwater-characterization

Watershed health monitoring

We monitor the regional health of rivers and streams in watersheds throughout the state.

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

King County BEACH report

Learn about beaches sampled for bacteria levels in King County in the summer of 2024.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/king-county

Pierce County BEACH report

Learn about beaches sampled for bacteria levels in Pierce County in the summer of 2024.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/pierce-county

Whatcom County BEACH report

Learn about beaches sampled for bacteria levels in Whatcom County in the summer of 2024.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/whatcom-county

Acronyms & glossary for the Toxics Cleanup Program

We have a list of acronyms and terms commonly used in contaminated site cleanup work.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/toxic-cleanup-acronyms

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

Western Washington Hydrology Model

Western WA Hydrology Model models most hydrologic conditions for stormwater control and design.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/stormwater-manuals/western-washington-hydrology-model

Mercury lights guidance

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/mercury-lights-guidance

Municipal stormwater permit guidance

We provide guidance for developing and implementing municipal stormwater management programs.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/municipal-stormwater-permit-guidance

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

SEPA subject index

References to SEPA topics in rule and statute.

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

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

Pharmaceutical waste codes

Find common waste codes for pharmaceutical waste.

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

CLARC guidance

Use these guidance documents in combination with CLARC to establish cleanup levels.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-cleanup-tools/clarc/guidance

Stormwater manuals

We develop stormwater manuals to provide stormwater permit implementation and management guidance.

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

Oil transfers and transfer inspections

Our oil-transfer requirements help prevent spills during bulk-oil transfers.

https://ecology.wa.gov/regulations-permits/compliance-enforcement/oil-transfers

Rulemaking at Ecology

Find out about our rulemaking activities.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking

Infrastructure, rule, & program plans

Our plans and rules to improve air quality and meet national air quality standards.

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

Plan to control nonpoint sources of pollution

The Nonpoint Plan outlines our approach for addressing water quality impacts from nonpoint pollution.

https://ecology.wa.gov/regulations-permits/plans-policies/plan-to-control-nonpoint-sources-of-pollution

Vessel information

Oil spill regulations and recommendations for vessel masters, agents, and companies.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-oil-industry/vessel-information

TransAlta Power Plant

The TransAlta agreement lowers harmful air pollutants from Washington's only coal-fired power plant.

https://ecology.wa.gov/regulations-permits/compliance-enforcement/transalta

Paired watershed retrofit & restoration study

Stormwater Action Monitoring effectiveness study: Paired watershed retrofit and restoration study.

https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-effectiveness-studies/paired-watershed-retrofit-and-restoration-study

Stormwater Action Monitoring - Effectiveness studies

Learning what works best to reduce urban runoff volumes and pollution in Western Washington.

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

Municipal stormwater general permits

This permit covers urban areas that collect stormwater runoff in public storm sewer systems.

https://ecology.wa.gov/regulations-permits/permits-certifications/stormwater-general-permits/municipal-stormwater-general-permits

Municipal stormwater permit reissuance

Information about the reissuance of 2024 Western and Eastern Washington Municipal Stormwater permits.

https://ecology.wa.gov/regulations-permits/permits-certifications/stormwater-general-permits/municipal-stormwater-general-permits/municipal-stormwater-permit-reissuance

State Emergency Response Commission (SERC)

State Emergency Response Commission implements the Emergency Planning and Community Right-to Know Act

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

Technical resources for sediment cleanups

Access our technical resources to help support your sediment cleanup decisions.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/sediment-cleanup-resources

Dangerous waste permits

Facilities that store, treat, or dispose of dangerous waste must have a dangerous waste permit.

https://ecology.wa.gov/regulations-permits/permits-certifications/dangerous-waste-permits

SEPA lead agency contacts

Browse tables containing SEPA contacts at state and local agencies in Washington.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-lead-agency-contacts

Meet our team

Businesses can contact our team for non-enforcement pollution prevention (P2) technical assistance.

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

Pollution prevention assistance (PPA)

Businesses can get free, non-regulatory pollution prevention help from local PPA specialists.

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