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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Adopted rule language (WAC 173-446)

Adopted rule language WAC 173-446

https://ecology.wa.gov/adopted-rule-language-wac-173-446-12-03-24

CFS Workshop on Draft Rule Language

Slideshow presentation

https://ecology.wa.gov/presentation-wac-173-424-12-5-and-12-11-2024

HFCs & other fluorinated greenhouse gases rulemaking

Slideshow presentation

https://ecology.wa.gov/presentation-wac-173-443-12-16-2024

Models & spreadsheets

Computer models predict changes and spreadsheets calculate. We offer these tools to the public.

https://ecology.wa.gov/research-data/data-resources/models-spreadsheets

GIS Data

Ecology's authoritative GIS data layers are available for download.

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

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

Watershed health sampling sites

Learn about the sites we sample.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/sampling-sites

Groundwater quality assessment

Our hydrogeologists monitor and assess groundwater quality and quantity in Washington.

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

River and stream monitoring

Our freshwater data helps us to assure clean and abundant water to support human and aquatic life.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring

Jellyfish in Puget Sound

Jellyfish numbers may be increasing in Puget Sound. You can help us monitor them.

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

Salish Sea Model

We use a computer tool that simulates hydrodynamic and water quality processes in the Salish Sea.

https://ecology.wa.gov/research-data/data-resources/models-spreadsheets/modeling-the-environment/salish-sea-modeling

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

Watershed health sampling schedules

See when our crews will be collecting data on the health of watersheds at sites across the state.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/sampling-schedules

How to Create a SAW Account for Source Management System (SMS)

These are instructions for how to create a SAW account, register for Air Quality Portal, and add Source Management System (SMS).

https://ecology.wa.gov/202007createsawsms

Source Management System (SMS) User Guide

These are instructions for using the Source Management System (SMS).

https://ecology.wa.gov/202007smsuserguide

Creating a SAW account for Washington Emissions Inventory Reporting System (WEIRS)

Instructions for creating a SAW account for Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/20190723creatingsawweirsaccount

Washington Emissions Inventory Reporting System (WEIRS) Emissions Inventory Codes

Emissions Inventory Codes for Washington Emissions Inventory Reporting System (WEIRS), 12/20/19

https://ecology.wa.gov/20191220emissionsinventorycodes

Washington Emissions Inventory Reporting System (WEIRS) Add New Emissions form

form to add new emissions in Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/addnewemissions

Washington Emissions Inventory Reporting System (WEIRS) Add New Process form

form to add new process in Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/addnewprocess

Washington Emissions Inventory Reporting System (WEIRS) Add New Release Point form

Form to add new release point in Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/addnewreleasepoint