What is EIM?
EIM features
What's new?
What's in EIM?
Other databases
Supported browsers
Ecology > EIM > About EIM

What is EIM?

The Environmental Information Management System (EIM) is the Department of Ecology's main database for environmental monitoring data. EIM contains records on physical, chemical, and biological analyses and measurements. Supplementary information about the data (metadata) is also stored, including information about environmental studies, monitoring locations, and data quality.

EIM Features
EIM features
  • A searchable database
    Search over 15 million environmental records from 118,000 monitoring locations throughout and adjoining Washington state. Access data from over 3700 studies including information about where samples were collected, study details, and data quality.
  • Search by map
    Search for environmental data by navigating a map of Washington state.
  • Search and download
    Conduct a custom search for environmental datasets by form or by map, then download for analysis.
  • My EIM
    Use an advanced search, download and analysis tool.
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What's new?
  • Big changes in 2013
    On August 1 3013 we launched a new Search app with a slick new map, updated many fields in the database to better meet the needs of our customers and the data we receive, added the ability to accept time series data from field instruments, and added more customized search pages for looking at specific data types.  See more info in our 2013 Changes document.
  • Groundwater Data Center
    The Groundwater Data Center is a special portal and search for EIM users interested in groundwater data and wells.
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What's in EIM?
  • Chemical measurements
    Metals, PCBs, etc.
  • Physical measurements
    Water clarity, flow, temperature, groundwater levels (including transducer data), etc.
  • Biological measurements
    Fish measurements, plant tissue, benthic organisms, bioassay data, etc.
  • Habitat data
    Habitat metrics
  • Study information
    Study purpose and contact information, data quality, links to bibliographic information, etc.  Studies range from statewide ambient stream monitoring to hazardous waste site cleanups.
  • Location information
    Detailed physical and geographical information about monitoring locations.  Includes information about well construction and use, when available.

Data sources
Data in EIM is collected by Ecology or on behalf of Ecology by environmental contractors - and by Ecology grant recipients, local governments, and volunteers.

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What other data sources are available outside EIM?

Online data
Listed below are additional sources of environmental monitoring data collected by Ecology that are not available through EIM but are available either online or via download:

Refer also to Ecology's Environmental Assessment Program page for additional information.

Legacy and offline data
In addition to the data sources listed above, we are constantly in the process of migrating legacy and offline datasets into EIM.  For more information on legacy and offline datasets, contact the EIM team.

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What browsers are recommended for EIM?

EIM is compatible with Microsoft© Internet Explorer 7-9, Firefox, Chrome, and Safari.

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