Indian Creek IA 05-NSH-1425
mouth (S17 T75N R37W Cass Co.) to confluence with Wolf Cr. in S35 T79N R37W Shelby Co.
Assessment Comments
Assessment is based on results of 1996 Biocriteria sampling: Fish IBI=22 (poor), BM-IBI=51 (fair).
Basis for Assessment
SUMMARY: The Class B(LR) aquatic life uses remain assessed as "partially supported." The assessment category, however, is changed from "monitored" to "evaluated." EXPLANATION: Continue to use the assessment developed for the 1998 and 2000 reports (see above) that was based on results of the 1996 IDNR biocriteria assessment. However, because these data are now considered too old (greater than five years) to accurately characterize current water quality conditions, the assessment category is changed from "monitored" (indicating an assessment with relatively high confidence) to "evaluated" (indicating an assessment with relatively low confidence). Follow-up monitoring is needed to better determine the status of the aquatic communities and the extent to which the Class B(LR) uses may be impaired.
Assessment Key Dates
| 10/15/1996 | Biological Monitoring |
Methods
| 330 | Fish surveys |
| 380 | Quan. measurements of instream parms-- channel morphology-- floodplain-- 1-2 seasons-- by prof |
| 220 | Non-fixed station physical/chemical monitoring (conventional pollutant only) |
| 315 | Regional reference site approach |
| 320 | Benthic macroinvertebrate surveys |
| 150 | Monitoring data more than 5 years old |
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 | Poor |
| Causes | Use Support | Cause Magnitude | Sources | Source Magnitude |
|---|---|---|---|---|
| Other habitat alterations | Overall Use Support | Moderate |
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| Other habitat alterations | Aquatic Life Support | Moderate |
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