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River & stream flow monitoring methods
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
Forest practices effectiveness monitoring
We evaluate whether forest practices rules protect fish, wildlife, and water quality.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/forest-practices-effectiveness-monitoring
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
Watershed Health Monitoring by region
We studied stream habitat across the state since 2009 and report on findings.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/regional-reports
Watershed health — Puget Sound Region update
River and stream habitat in the Puget Sound Region shows variable conditions.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/regional-reports/puget-sound
Air Quality Index (AQI)
The Air Quality Index (AQI) tells you when air quality is healthy or unhealthy.
https://ecology.wa.gov/research-data/monitoring-assessment/air-quality-index
Air quality studies
Information about air quality studies we conduct.
https://ecology.wa.gov/research-data/scientific-reports/air-quality-studies
Wastewater testing
Whole effluent toxicity testing ensures wastewater does not harm aquatic life.
https://ecology.wa.gov/research-data/monitoring-assessment/wastewater-testing
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
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
Puget Sound feeder bluffs
Protecting the cliffs that feed Puget Sound beaches with sand and the beaches that depend on them.
https://ecology.wa.gov/research-data/monitoring-assessment/coastal-monitoring-assessment/projects/puget-sound-feeder-bluff
Data collection methods
We collect beach topography and nearshore bathymetry data using GNSS, boat-based lidar, sonar, and UAS.
https://ecology.wa.gov/research-data/monitoring-assessment/coastal-monitoring-assessment/data-collection-methods
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
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
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
Sulfur dioxide air quality designations
We’re deciding if parts of Washington don't meet national air quality standards for sulfur dioxide.
https://ecology.wa.gov/regulations-permits/plans-policies/areas-meeting-and-not-meeting-air-standards/sulfur-dioxide-designations
Noise pollution — Frequently asked questions for residents
Do you have questions about noise pollution? Find some common questions and answers.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/noise-pollution/noise-pollution-faq-for-residents
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
FAQ: Evaluate options to clean up homes and small businesses
These FAQs help homeowners and small businesses evaluate cleanup options and complete cleanup work.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-residential-cleanups/evaluation-cleanup-for-homeowners-small-busine
FAQ: Investigate and report toxic releases
FAQs to help homeowners and small businesses investigate and report toxic releases.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-residential-cleanups/investigating-reporting-toxic-releases
Primary response contractors for spill cleanup
We approve primary response contractors to allow them to be cited in industry oil plans.
https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/primary-response-contractors
Beneficial Use Determination registry
List of all pending or approved beneficial use determinations.
https://ecology.wa.gov/regulations-permits/permits-certifications/solid-waste-permits/beneficial-use-determinations/beneficial-use-determinations-registry
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 checklist guidance, Section B: Earth
Checklist guidance Part B. Elements of the Environment
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-earth
Safer products for businesses
Learn how your business can find and purchase less toxic chemicals and products.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/safer-alternatives/safer-products-for-businesses
Lithium-ion battery safety and management
Learn how to safely manage, store, and dispose of lithium-ion batteries.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/batteries/lithium-ion-batteries
Antifreeze
Learn how your business can manage antifreeze and recycle spent antifreeze.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/antifreeze
Batteries
Batteries can be disposed as universal waste or under an exclusion for lead-acid batteries.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/batteries
Dental waste
Dental offices generate dangerous waste that must be disposed of properly.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/dentists
Nicotine and cannabis waste
Learn how your business can properly handle nicotine, vape, and cannabis waste.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/nicotine-and-cannabis-waste
Managing pharmaceutical waste
Learn how to manage waste pharmaceuticals properly to keep them out of the environment.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste
Solvents
Most solvents become dangerous waste and must be managed properly.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/solvents
Solvent-contaminated wipes
Follow these best management practices for solvent-contaminated wipes.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/solvent-wipes
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
Accumulation
Learn more about on-site dangerous waste accumulation time limits and restrictions.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/accumulation
Prepare for an inspection
We inspect facilities to ensure they legally handle, store, and dispose of dangerous waste.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/prepare-for-an-inspection
Step five: Check Washington state-only criteria
Learn how to determine if your waste meets Washington state-only dangerous waste criteria.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/check-washington-state-only-criteria
Small quantity generators (SQGs)
Learn about the benefits and rules for dangerous waste small quantity generators (SQGs).
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/generator-category/small-quantity-generators
Approved sampling and analysis procedures
Approved laboratory analysis methods for cleaning up contaminated sites.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-cleanup-tools/sampling-and-analysis-procedures
Managing solar panel waste
Learn how businesses can properly manage, recycle, or dispose of end-of-life solar panels.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/solar-panel-waste
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
Tier Two reporting
Facility reporting guidelines for Tier Two, including how to file with Tier Two Online.
https://ecology.wa.gov/regulations-permits/reporting-requirements/emergency-planning-community-right-to-know-act/tier-two-reporting
Small cosmetics manufacturer certification subsidy program
Small cosmetics manufacturers can apply for financial support to reformulate and certify their products.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/safer-alternatives/safer-chemicals-for-manufacturers/cosmetics-certification-subsidy-program
Manuals & procedures for accredited labs
Download the procedure manual, and find tips and tools for accredited environmental labs.
https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation/manual-and-procedures-for-accredited-laboratories
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 Action Monitoring — source identification
Learning, sharing best ways to identify and eliminate sources of stormwater pollution in WA.
https://ecology.wa.gov/regulations-permits/reporting-requirements/stormwater-monitoring/stormwater-action-monitoring/sam-source-identification
E-Cycle WA information for manufacturers
Find out whether you qualify as a manufacturer under the E-Cycle Washington program.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/electronics-ecycle-guidance-and-reports/manufacturers
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