Hickory Creek IA 01-NMQ-110
mouth (S21 T89N R2W Dubuque Co.) to confluence with unnamed tributary in S14 T89N R2W Dubuque Co.
Assessment Comments
Stream use assessment in Dubuque County.
Basis for Assessment
Continued to use the assessment of support of the Class B(LR) aquatic life uses developed for the 1994 report. Because data used to develop this assessment are more than 5 years old, changed the 305(b) assessment category from "monitored" to "evaluated." Follow-up monitoring is needed to update the assessment, to better determine the status of the aquatic communities and habitats, and to determine to what degree the aquatic life uses are impaired. A review of the field sheet from the October 1991 DNR stream use assessments shows a fish community with 4 species from 1 family that lacks most of expected species/genera of Class B(LR) streams in this region. Follow-up monitoring is needed.
Assessment Key Dates
| 10/1/1991 | DNR Stream Use Assessment |
Methods
| 360 | HABITAT ASSESSMENT |
| 330 | Fish surveys |
| 150 | Monitoring data more than 5 years old |
Monitoring Levels
| Biological | 0 |
| 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 | Moderate |
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| Organic enrichment/Low DO | Aquatic Life Support | Moderate |
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| Other habitat alterations | Overall Use Support | Moderate |
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| Other habitat alterations | Aquatic Life Support | Moderate |
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| Siltation | Overall Use Support | Moderate |
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| Siltation | Aquatic Life Support | Moderate |
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