Yellow River IA 01-YEL-434
mouth (S34 T96N R3W Allamakee Co.) to County Road X-26 bridge in S24 T96N R5W Allamakee Co.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1996
Result Period
1992 - 1994
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 01-YEL-0070_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Not assessed
Primary Contact Recreation
Not assessed
Documentation
Assessment Comments
821101 (2IOWA), 6 mi E of Volney; three fish surveys in May 1989.
Basis for Assessment
Changed assessment of primary contact recreation uses from "partially supported" to "not assessed" due to lack of sufficient data. Thus, the 1994 assessment of aquatic life uses ("fully supported / threatened") remains. This assessment is supported by fish surveys at 3 locations in this reach of the Yelow River in May 1989 by Daryl Howell and John Olson of DNR: Volney (19 species); Sixteen (11 species); Ion (14 species). This reach not sampled during DNR stream use assessments conducted from 1990-1995. [DNR fish surveys: JRO- 20, 21, and 22, 1989.]
Causes and Sources of Impairment
| Causes | Use Support | Cause Magnitude | Sources | Source Magnitude |
|---|---|---|---|---|
| Pathogens | Overall Use Support | Slight |
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| Pathogens | Primary Contact Recreation | Slight |
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