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Welcome to Amnis Opes Institute

The Amnis Opes Institute (AOI) delivers efficient and high quality environmental services to meet clients needs.

amnis opes news:

Watershed Assessments Move Forward

AOI continues its work on behalf of the U.S. EPA and the Washington Department of Ecology to implement rigorous stream assessments.

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Silvies Valley Ranch

AOI and Oregon State University are developing a base map of the Silvies Valley Ranch and the surrounding areas. The database will offer current conditions and provide a foundation for future research and decision making.

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