Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Upper Iowa River IA 01-UIA-245

from confluence with unnamed tributary (NE 1/4 S21 T100N R12W Howard Co.) to IA/MN state line in S11 T100N R14W Howard Co.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 01-UIA-0120_5
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Not assessed
Documentation
Assessment Comments

Previous assessment was based on results of DNR stream use assessment in September 1995.

Basis for Assessment

Used a review of the field sheet from the September 1995 DNR stream use assessment near Chester to continue to assess support of the Class B(WW) uses as FST due to (1) presence of a very diverse fish community for Class B(WW) streams in the Iowan Surface subecoregion (47c), (2) presence of nearly all the expected fish taxa (9 of 11) for streams in this subregion, (3) presence of the expected game fish species (smallmouth bass), with both adults and juveniles present and (4) indications of above average habitat quality due to presence of diverse substrates and to lack of significant impacts to the physical characteristics of this stream reach.

Monitoring and Methods
Assessment Key Dates
9/1/1995 DNR Stream Use Assessment
Methods
330 Fish surveys
375 Visual observation-- may not quantify some parameters-- single season-- by prof.
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