East Fork Wapsipinicon River IA 01-WPS-408
upper end of Sweet Marsh Segment C (S26 T93N R12W Bremer Co.) to the Bremer/Chickasaw county line (N line S3 T93N R12W Bremer Co.)
Assessment Comments
Assessment based on 2003 biocriteria data: FIBI = 45 (fair), BMIBI = 45 (fair). Non-riffle FIBI BIC = 44; artificial substrate BMIBI BIC = 52.
Basis for Assessment
The assessment was based on data collected in 2003 as part of the DNR/UHL stream biocriteria project. The 2003 FIBI score was 45 (fair) and the BMIBI score was 45 (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 non-riffle FIBI BIC for this ecoregion is 44 and the artificial substrate BMIBI BIC for this ecoregion is 52.
Assessment Key Dates
| 9/3/2003 | Biological Monitoring |
Methods
| 220 | Non-fixed station physical/chemical monitoring (conventional pollutant only) |
| 315 | Regional reference site approach |
| 320 | Benthic macroinvertebrate surveys |
| 330 | Fish surveys |
| 380 | Quan. measurements of instream parms-- channel morphology-- floodplain-- 1-2 seasons-- by prof |
Monitoring Levels
| Biological | 4 |
| Habitat | 4 |
| Physical Chemistry | 1 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 1 |
| BioIntegrity | Fair |