Trout Creek (aka Trout Run) IA 01-UIA-269
mouth (S23 T98N R8W Winneshiek Co.) to confluence with unnamed tributary (aka Trout Run) in S27 T98N R8W Winneshiek Co.
Assessment Comments
Monitored as part of Section 319 project.
Basis for Assessment
Used information from stream assessments conducted in 1992 by DNR and in 1995 by DNR/UHL, as well as information from a summary of the ongoing CWA Section 319 water quality project, to downgrade the assessment of support of the Class B(CW) aquatic life uses from FST to PS due to impacts from streambank erosion, channel sedimentation, and potential organic enrichment due to nutrient contributions from livestock and other nonpoint sources. See the 1998 assessment developed for the Class B(LR) reach (Waterbody IA 01-UIA-0300-2) for additional information. For more information on the Trout Run Water Protection Project, call 319/382-4352.
Assessment Key Dates
| 9/30/1999 | Fixed Monitoring End Date |
| 10/1/1997 | Fixed Monitoring Start Date |
Methods
| 320 | Benthic macroinvertebrate surveys |
| 330 | Fish surveys |
Monitoring Levels
| Biological | 4 |
| Habitat | 0 |
| Physical Chemistry | 0 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 0 |
| BioIntegrity | N/A |
| Causes | Use Support | Cause Magnitude | Sources | Source Magnitude |
|---|---|---|---|---|
| Organic enrichment/Low DO | Overall Use Support | Not Impairing |
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| Organic enrichment/Low DO | Aquatic Life Support | Not Impairing |
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| Other habitat alterations | Overall Use Support | Not Impairing |
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| Other habitat alterations | Aquatic Life Support | Not Impairing |
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| Siltation | Overall Use Support | Not Impairing |
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| Siltation | Aquatic Life Support | Not Impairing |
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