Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

East Nishnabotna River IA 05-NSH-1816

from Page/Montgomery Co. line to state Highway 48 bridge approximately 1.5 miles north of Red Oak at east line of S8 T72N R38W Montgomery Co.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 05-NSH-0020_3
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Not assessed
Documentation
Assessment Comments

Basis for Assessment

Continued to use the assessment of support of the Class B(WW) aquatic life uses developed for the 1996 report (=FST).   Threats to the continued support of these uses are frequent channelization, removal of riparian vegetation (primary mature trees), and unstable/actively eroding stream banks.   This assessment, and previous assessments, were developed without the benefit of biological information.  Montoring is needed to determine the status of the aquatic communities and habitats of the river and to provide information for an improved assessment of support of the Class B(WW) uses.  This reach of the East Nishnabotna River supports an active fishery for channel catfish and other riverine species.