We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

California Stream Bioassessment Procedure from December 2003

Provides a standardized protocol for assessing biological and physical/habitat conditions of wadeable streams in California.

You may need Adobe Reader to view files on this page. See EPA’s About PDF page to learn more.