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
1996 - 1998
Assessment Type
Integrated Report
Category 0
Legacy ADBCode
IA 05-NSH-0010_0
Overall Use Support
Aquatic Life Use Support
Not assessed
Fish Consumption
Assessment Comments

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

Basis for Assessment

SUMMARY:  The Class B(WW) aquatic life uses remain "not assessed."  The fish consumption uses remain "fully supported."  EXPLANATION:  The most recent water quality monitoring data for this river reach are from 1993 (see above).   These data are now considered too old (greater than five years) for characterizing current water quality conditions.   Thus, the Class B(WW) aquatic life uses were considered "not assessed" for both the 1998 report and the current (2000) report.   Fish consumption uses remain "fully supported" based on results of EPA/DNR fish tissue (RAFT) monitoring in 1995 (see assessment for the 1996 report above).

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