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Our website will be unavailable from 8 to 9 p.m. on Dec. 19 for scheduled maintenance.

GIS Applications

Ecology uses geographic information system (GIS) tools and procedures as aids in accomplishing its mission of protecting the land, air, and water of the state. The agency built and maintains the GIS applications described here in order to help our staff and others understand the diverse natural and cultural environment. As a public service, we are making our GIS applications accessible using a web browser.

Air Quality Monitoring
Coastal Atlas Map
Columbia River Mainstem - Water Resources Information System (WEBMAP)
Environmental Information Management (EIM)
Facility/Site Identification (F/SID) System
Lakes
Shoreline Aerial Photos
Smelter Search
Spills Map Series
Water Quality Atlas
Water Resources Explorer
Watershed Characterization
Washington State Well Report Viewer