North Fork Crow River Watershed Stressor Identification Report

This report documents the efforts that were taken to identify the causes, and to some degree the source(s) of impairments to aquatic biological communities in streams in the North Fork Crow River Watershed (NFCRW). This is the second Stressor Identification (SID) Report for the NFCRW. The first report followed the initial Intensive Watershed Monitoring (IWM) effort in 2007 (MPCA, 2014). A separate SID report was written for Grove Creek following IWM-1 work (MPCA, 2013a). A second round of IWM occurred in the NFCRW in 2017, and is described in a second Intensive Watershed Monitoring and Assessment Report (MPCA, 2020a). The second SID effort began in 2018, and investigated stream segments that were either new biological impairments discovered in IWM-02, or biological impairments that were not included in the IWM-1 NFCRW SID Report. The Minnesota Department of Natural Resources (DNR) conducted geomorphic surveys/assessments at six stream segments in 2017 and 2018 that were assessed as impaired in IWM-01, which are presented in this current report.