Research & Data

Use this portal to filter and search for all of our scientific information.

Ecology provides the high-quality science that is the foundation of Washington state environmental policy. Our monitoring, assessment, and modeling services provide a data-rich understanding of our state’s land, air, and water. We provide access to that data through reports, databases, maps and user-friendly online tools.

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WasteCharacterization2015-16

Washington's 2015-2016 waste characterization study samples landfills from across the state to estimate overall solid waste composition.

https://ecology.wa.gov/washington-waste-characterization-2015-2016

Vader-biosolids-spill-plan

This document describes the spill prevention and response plan for Vader Wastewater Treatment Plant's biosolids proposal.

https://ecology.wa.gov/vader-biosolids-spill-prevention-and-response

Continued Response Actions to Partial Collapse of PUREX Tunnel 1

Due to the continued immediate threat to human health and the environment posed by the instability of PUREX Tunnel 1, Ecology approves grouting of PUREX Tunnel 1 as an interim stabilization measure.

https://ecology.wa.gov/20170608purexgroutresponse

July 16, 2012: Ecology's approach to fish consumption standards in Washington state

Former Ecology Director Ted Sturdevant's 2012 transmittal letter announcing Ecology's approach to fish consumption standards in Washington state.

https://ecology.wa.gov/20120716sturdevantfcrapproachtostandards

Amended Administrative Order Docket #15419 amending Order Docket #14156

This amended order adds PUREX Tunnel 2 to the scope of Corrective Action 3 and provides additional time for USDOE-RL and CHPRC to complete Corrective Action 3.

https://ecology.wa.gov/20170915purexamendedorder

Vader-draft-agreed-order

This draft agreed order would allow the Vader Wastewater Treatment Plant to remove biosolids for land application.

https://ecology.wa.gov/vader-draft-agreed-order

Vader-added-conditions

This documents lists additional and more stringent conditions to a draft agreed order for the Vader Wastewater Treatment Facility.

https://ecology.wa.gov/vader-draft-agreed-order-added-conditions

Presentation slides (WAC 173-323) 8/7/17

August 7, 2017 Presentation slides for Chapter 173-323 rulemaking.

https://ecology.wa.gov/presentation-slides-wac-173-323

Vader-sampling-analysis

This document describes the sampling and analysis planned for the removal of biosolids from the Vader Wastewater Treatment Plant.

https://ecology.wa.gov/vader-sampling-and-analysis-plan

Vader-SEPA-letter

This is a letter from the City of Vader stating their proposal meets the Washington State Environmental Protection Act requirements.

https://ecology.wa.gov/vader-sepa-letter

WasteGenerationAndRecovery-2021

This is Solid Waste Managment's public dataset covering waste generation, recycling, and recovery quantities in 2021.

https://ecology.wa.gov/wastegenerationandrecovery-2021-updated-3-19-24

WA Composted Materials 2023

This is Solid Waste Management's list of Washington compost facilities and the types of materials they accept.

https://ecology.wa.gov/wa-composted-materials-2023

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

Active groundwater studies

We conduct groundwater studies for long- and short-term projects. Learn about our active studies.

https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/active-studies-index

Freshwater fish contaminant monitoring

We analyze freshwater fish for various toxic chemicals.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring/freshwater-fish-contaminant-monitoring

Monitoring for lead in lakes & streams

We monitor temporal changes in the lead levels of rivers and streams in the state.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring/lead-monitoring

Mercury in fish tissue

We monitor mercury levels in freshwater fish throughout Washington.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring/mercury-in-fish-tissue

Monitoring Puget Sound from ferries

We installed sensors on passenger ferries as a cost-effective way of collecting water quality data.

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

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

Models and tools for water quality improvement

We use models to predict water quality changes to help find strategies to address pollution.

https://ecology.wa.gov/research-data/data-resources/models-spreadsheets/modeling-the-environment/models-tools-for-tmdls