Black Cat Creek IA 04-EDM-980

Assessment Comments

Habscr/fshscr: 25/10 (seine) (score corrected due to error in scoring % pollution tolerant species); 1997 Biocriteria: Fish IBI=51 (good), BM-IBI=74 (good).

Basis for Assessment

Used results of the August 1997 DNR biocriteria sampling approx 7 mi NNW of Algona to update the assessment of support of the Class B(LR) aquatic life uses.  Based on results of the biocriteria sampling, continue to assess support of the Class B(LR) uses as FST due to (1) presence of a relatively diverse fish community of 18 species from 5 families, (2) presence of a majority of the expected fish taxa (8 of 11) for streams in the Des Moines Lobe subecoregion, and (3) lack of violations of Class B(LR) WQ criteria in the sample collected during biocriteria sampling.   Threats identified are those from the assessment developed for the 1996 Section 305(b) report.