Assessment Comments
Assessment is based on results of IDNR/UHL biological (biocriteria) monitoring in 1997: Fish IBI=44 (fair), 35 (fair); BM-IBI = 63 (good), 71 (good).
Basis for Assessment
SUMMARY: The Class B(LR) aquatic life uses are assessed (monitored) as "fully supporting / threatened" (minor impacts) based on results of IDNR/UHL biological (biocriteria) sampling in 1997. This is the same assessment as that developed for the 2002 reporting cycle.
EXPLANATION: The assessment was based on results of IDNR/UHL biological sampling in 1997. Sampling was conducted at two sites on this river segment. The F-IBI scores were 44 and 35 (both in the "fair" category); the BM-IBI scores were 63 and 71 (both in the "good" category). The aquatic life use support was assessed as fully supported / threatened (=FST), based on a comparison of the F-IBI and BM-IBI scores with biological assessment criteria. The biological assessment criteria were determined from a statistical analysis of data collected at stream ecoregion reference sites from 1994-2001. See the assessment developed for the 2000 and previous reporting cycles for more information.
