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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2024 YTD Statistics WMMFA

This report includes the year-to-date collection statistics for the E-Cycle Washington program in 2024.

https://ecology.wa.gov/2024-ytd-wmmfa

Biosolids facilities list 2024

This is Ecology's official list of biosolids facilities in Washington.

https://ecology.wa.gov/biosolids-facilities-list-a5a06e95e96db8d865eedf1f5db8a461

DRAFT Chapter 173-339 WAC Cosmetic Products Restrictions

This is the draft rule language for Chapter 173-339 WAC Cosmetic Products Restrictions.

https://ecology.wa.gov/draft-chapter-173-339-wac-cosmetic-products-restrictions-07-24

AFFF EIS interactive plain text

This is the plain text version of the interactive AFFF environmental impact statement (EIS).

https://ecology.wa.gov/afff-eis-plain-text

PFAS information from the Department of Health

The Washington State Department of Health has information on PFAS health concerns, PFAS in drinking water, and limiting exposure.

https://ecology.wa.gov/doh-pfas

Resources: 6PPD informational materials and resource links

Access more information about 6PPD and find 6PPD-quinone resources.

https://ecology.wa.gov/resources-6ppd-informational-materials-and-resource-links

Email list: Toxic-Free Cosmetics Act

https://ecology.wa.gov/email-list-toxic-free-cosmetics-act

Survey: PCB program contractors

This is the survey for contractors to express interest in the PCB lights incentive program.

https://ecology.wa.gov/survey-pcb-program-contractors

Rulemaking Announcement (WAC 173-339) 12/19/24

Rulemaking Announcement CR 101

https://ecology.wa.gov/rulemaking-announcement-wac-173-339-12-19-24

Geographic Information Systems (GIS)

Our GIS staff maintain spatial datasets and applications, conduct GIS projects, and publish GIS maps.

https://ecology.wa.gov/research-data/data-resources/geographic-information-systems-gis

Industrial Section Permits

Links to all permits issued by Ecology's Industrial Section for air, water and waste at paper mills, refineries and chemical plants.

https://ecology.wa.gov/industrial-permits

Annual Report 2023

The Washington State Mercury-Containing Lights Product Stewardship Program began on Jan. 1, 2015, for the collection and recycling of mercury-containing lights sold at retail. Pursuant to WAC 173-910-430, each stewardship organization must submit an annual report to the department describing the results of implementing the stewardship organization's plan for the prior calendar year.

https://ecology.wa.gov/annual-report-2023

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 Facilities

This is Ecology's list of active solid waste facilities in Washington.

https://ecology.wa.gov/solid-waste-facilities

Publication: Methods for Producing Biochar and Advanced Biofuels in Washington State (2011)

This is the first of a series of reports exploring the use of biomass thermochemical conversion technologies to sequester carbon and to produce fuels and chemicals.

https://ecology.wa.gov/publication-methods-for-producing-biochar-and-advanced-biofuels-in-washington-state-2011

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

Contaminants in lake sediment cores

We age-date sediment cores from three lakes per year to assess contaminant deposition trends.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring/contaminants-in-sediment-cores

Railroad Creek monitoring

Our scientists are studying how mine remediation affects aquatic life uses along Railroad Creek.

https://ecology.wa.gov/research-data/monitoring-assessment/water-quality-improvement-effectiveness-monitoring/railroad-creek

Black Lake Grocery groundwater monitoring

We monitor groundwater for petroleum hydrocarbons at the Black Lake Grocery site.

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

Estimating nitrate groundwater impacts

We developed a method to estimate groundwater nitrate impacts from nutrients and fertilizers.

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