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Arboricultural Expert Witness

Teragan & Associates, Inc.

3145 Westview Circle
Lake Oswego, Oregon 97034

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Our firm provides litigation services for tree related issues. Our team of experts have an in-depth knowledge of the regulatory standards and guidelines set forth by OHSA, ANSI A300, ISA Guidelines, and other applicable best management practices. We are very proficient in municipal code interpretation, tree and plant appraisal, forensic data collection, tree and plant disease diagnosis, and tree risk assessments.

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