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.
2018 Draft Water Quality Assessment 4B Analyses
This is part of Ecology's submittal to EPA for the 2018 Water Quality Assessment.
https://ecology.wa.gov/2018-draft-wqa-4b-analyses
2018 Deschutes TMDL Cover Letter
This cover letter is included in the TMDL document to address the EPA decisions about this TMDL
https://ecology.wa.gov/2018-deschutes-tmdl-cover-letter
Determinations for Data and Information Submitted
This explains how Ecology used narrative data and information submitted for the 2018 Draft Water Quality Assessment
https://ecology.wa.gov/2018-draft-wqa-determinations-for-data-and-informa
Guidance for Public Review
This is a guide on how to review and comment on the draft Water Quality Assessment
https://ecology.wa.gov/2018-draft-wqa-guidance-for-public-review
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
2017 Ecology Supplemental Budget Submittal
Ecology's 2017 Supplemental Capital Budget submittal
https://ecology.wa.gov/2017supplementalsubmittal
2018 Annual WMMFA Report
This annual report indicates the total covered electronic products (CEPs) collected in 2018 and the year to date total of CEPs collected. This report also breaks down the pounds collected by county and product type.
https://ecology.wa.gov/2018-annual-wmmfa-report
2018 Draft Acceptable Source Impact Levels (ASIL) Options (WAC 173-460) 07/26/18
This is a 7/26/18 spreadsheet of options to update the list of acceptable source impact levels (ASIL) in Chapter 173-460 WAC.
https://ecology.wa.gov/2018-asil-options-wac-173-460-07-26-18
2018 Draft Acceptable Source Impact Levels (ASIL) Summary List (WAC 173-460) 07/26/18
This is the 7/26/18 draft summary list of Acceptable Source Impact Levels (ASIL) in Chapter 173-460 WAC.
https://ecology.wa.gov/2018-draft-asil-list-wac-173-460-07-26-18
2017 Pretreatment Plan
2017 Coast Seafood Z. japonica Pretreatment Plan
https://ecology.wa.gov/2017wag993011pretrtplan
2017 Pretreatment Plan
2017 Taylor Shellfish Z. japonica Pretreatment Plan
https://ecology.wa.gov/2017wag993005pretrtplan
2017 Pretreatment Plan
2017 Wiegardt and Sons Z. japonica Pretreatment Plan
https://ecology.wa.gov/2017wag993006pretrtplan
2017 Pretreatment Plan
2017 Station House Oysters Z. japonica Pretreatment Plan
https://ecology.wa.gov/2017wag993004pretrtplan
2017 Pretreatment Plan
2017 Northern Oyster Company Z. japonica Pretreatment Plan
https://ecology.wa.gov/2017wag993007pretrtplan
2017 Pretreatment Plan
2017 Willapa Bay Shellfish Z. japonica Pretreatment Plan
https://ecology.wa.gov/2017wag993008pretrtplan
2017 Pretreatment Plan
2017 Herrold Fish Oyster Z. japonica Pretreatment Plan
https://ecology.wa.gov/2017wag993009pretrtplan
2017 Pretreatment Plan
2017 Heckes Clam Inc Z. japonica Pretreatment Plan
https://ecology.wa.gov/2017wag993010pretrtplan
4469 results
401 - 420 of 4469