Assessment Comments
Assessment is based on results of 2000 IDNR/UHL biological (biocriteria) sampling: FIBI = 48 (fair) and BMIBI = 62 (good). Riffle site FIBI BIC = 53, BMIBI BIC = 62.
Basis for Assessment
SUMMARY: The Class B(LR) aquatic life uses are assessed (monitored) as "fully supported" based on results of IDNR/UHL biological (biocriteria) sampling in 2000.
EXPLANATION: This assessment was based on data collected in 2000 as part of the DNR/UHL stream biocriteria project. The 2000 FIBI score was 48 (fair) and the BMIBI score was 62 (fair). The aquatic life use support was assessed as fully supporting (=FS), based on a comparison of the FIBI and BMIBI scores with biological impairment criteria (BIC) established for previous Section 305(b) reports. The biological impairment criteria were determined from a statistical analysis of data collected at stream ecoregion reference sites from 1994-2004. The riffle site FIBI BIC for this ecoregion is 53 and the BMIBI BIC for this ecoregion is 62.
