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.
Areas affected by nitrogen oxides emissions in Washington
Map of nitrogen oxides emissions from diesel Volkswagen (VW) vehicles in Washington
https://ecology.wa.gov/2017vwdieselnox
2017 VW Diesel NOx By Census
An Excel file that shows 2017 Diesel NOx pollution by census tract.
https://ecology.wa.gov/2017vwdieselnoxbycensus
Volkswagen (VW) Nitrogen Oxides Emissions in Washington-alt
The text version of the map where the nitrogen oxides emissions can be found in Washington.
https://ecology.wa.gov/2017vwnitrogenoxideemissions-alt
2017 affected Volkswagen (VW) registered vehicles in Washington
Top Washington counties with registered 2.0 and 3.0 liter diesel Volkswagen (VW) vehicles
https://ecology.wa.gov/2017vwregisteredcars
Pacific Northwest Volkswagen (VW) Zero-Emissions Vehicle (ZEV) Investment Proposal
Investment proposal for Pacific Northwest Volkswagen (VW) Zero-Emissions Vehicle (ZEV)
https://ecology.wa.gov/20161223pnwzevinvestmentproposal
Volkswagen (VW) Notice of Penalty - State
State Notice of Penalty for Volkswagen (VW)
https://ecology.wa.gov/07082016vwnoticeofpenalty-state
Electric Fire Truck Grant FAQs
FAQ for electric firetruck grants
https://ecology.wa.gov/electricfiretruckgrantfaq
Grant Application for Diesel to Zero-Emission Refuse Vehicles, Street Sweepers, PCHE, and Freight Switchers: Frequently Asked Questions, July 17, 2023
This is the July 2023 frequently asked questions (FAQ) about the grant for zero-emission refuse vehicles,street sweepers, port cargo handling equipment, and freight switcher locomotives.
https://ecology.wa.gov/202307vwzevfaq
Application checklist for Level 2 EV charging, July 2024
This is the July 2024 application checklist for Level 2 EV charging stations.
https://ecology.wa.gov/202407ev2checklist
Volkswagen Federal Settlement Grant Level 2 guidelines
This notice announces funding available to help increase level 2 charging access across Washington State where drivers are likely to spend at least one to four hours..
https://ecology.wa.gov/202309ev2guidelines
Level 2 Grant application instructions
Application instructions for Level 2 grant funding: Charge Where You Are
https://ecology.wa.gov/202309ev2instructions
Example terms and conditions for Ecology grants
This is the July 2024 example terms and conditions document for Ecology grants.
https://ecology.wa.gov/202407exampletermscond
Cap-and-Invest Linkage Rulemaking Public Meeting
.pdf of July 10 public meeting presentation
https://ecology.wa.gov/presentation-wac-173-441-446-7-10-24
Online tool: Cleanup and Tank Search
Find information on contamination cleanup sites and underground storage tanks.
https://ecology.wa.gov/online-tool-cleanup-and-tank-search
Executive Summary
Water Resources Program executive summary on the five year strategic plan
https://ecology.wa.gov/executive-summary
Rulemaking Proposal Extension (WAC 173-201A) 7/11/24
This is a rulemaking proposal extension (CR-102 C) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington
https://ecology.wa.gov/rulemaking-proposal-extension-wac-173-201a-7-11-24
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
Rule Agenda for July - December 2024
Rule Agenda for July thru December 2024
https://ecology.wa.gov/rule-agenda-for-july-dec-2024
Northeast West Plains PFAS in drinking water sampling results map
The EPA created this map to summarize where samples were taken without showing private well locations.
https://ecology.wa.gov/west-plains-pfas-sampling-results-map
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