Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Iowa River IA 02-IOW-628

from Burlington St. dam in Iowa City (Johnson Co.) to Coralville Reservoir dam (Johnson Co.)

Assessment Cycle
1992
Result Period
1988 - 1990
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 02-IOW-0030_2
Overall Use Support
Not supporting
Aquatic Life Use Support
Partial
Fish Consumption
Fully
Primary Contact Recreation
Not supporting
Drinking Water
Not assessed
Documentation
Assessment Comments

Assessment is based on results of routine water quality & fish tissue monitoring as part of the UI/ACOE Coralville Water Quality Study.

Basis for Assessment

Reach was assessed as NS due to high levels of fecals:  7 of 13 sampled collected during non-runoff periods violated the Class A WQC.   Sampling showed no violations of Class B WQC or high levels of fish contaminants.

Monitoring and Methods
Assessment Key Dates
Methods
420 Water column surveys (e.g. fecal coliform)
120 Surveys of fish and game biologists/other professionals
230 Fixed station physical/chemical (conventional plus toxic pollutants)
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