Providing biological and physical assessments of aquatic and riparian ecosystems 

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Spring Rivers provides biological and physical assessments of aquatic and riparian ecosystems for private entities, non-profit organizations, non-governmental organizations, and local, state, and federal government agencies.  

Biological Studies and Surveys

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Spring Rivers offers biological surveys and specializes in surveys for special status taxa. 

Wetland Delineations and Hydrological Assessments

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Spring Rivers offers wetland delineations and hydrological and physical stream channel assessment services. 

Contact Us

Spring Rivers Ecological Sciences LLC

​PO Box 153 Cassel CA, 96016​

(530) 335-5446