Iowa DNR

Water Quality Assessments

Impaired Waters List

Nishnabotna River IA 05-NSH-1412

IA/MO line to (S26 T67NR42W Fremont Co.) to confluence of E. Nishnabotna and W. Nishnabotna rivers in S2 T67N R42W Fremont Co.

Assessment Cycle
Result Period
1992 - 1994
Assessment Type
Integrated Report
Category 0
Legacy ADBCode
IA 05-NSH-0010_0
Overall Use Support
Aquatic Life Use Support
Fish Consumption
Assessment Comments

Assessment is based on results of fish tissue (RAFT) monitoring in 1995.

Basis for Assessment

Had no violations of Class B(WW) WQ criteria in five samples collected by USGS during water year 1993 at the Hamburg monitoring station; station discontinued by USGS after the 1993 water year.   All levels of contaminants in sample of carp fillets collected for the 1995 RAFT program were less than 1/2 the FDA action levels.   Account in "Iowa Float Trips" states that the Nishnabotna remains channelized throughout.

Monitoring and Methods
Assessment Key Dates
9/1/1995 Fish Tissue Monitoring
260 Fish tissue analysis
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