Iowa DNR

Water Quality Assessments

Impaired Waters List

Iowa River IA 02-IOW-622

from south corporate limit of Wapello (S35, T74N, R3W, Louisa Co.) to Long Cr (S1, T74N, R4W, Louisa Co.)

Assessment Cycle
Release Status
Result Period
1988 - 1990
Assessment Type
Integrated Report
Category 0
Legacy ADBCode
IA 02-IOW-0010_2
Overall Use Support
Aquatic Life Use Support
Not assessed
Fish Consumption
Primary Contact Recreation
Not assessed
Assessment Comments

Assessment is based on results of fish contaminant monitoring.

Basis for Assessment

[The same assessment is used for Iowa River waterbodies IA 02-IOW-0010-1 and IA 02-IOW-0010-2.]

The two data values for FCB were collected at high flows, yet values were rel.  low (240 and 450); thus assessed as FST.   All fish contams were < 1/2 FDA action levels.

Monitoring and Methods
Assessment Key Dates
240 Non-fixed station physical/chemical (conventional + toxicants)
260 Fish tissue analysis
Monitoring Levels
Biological 0
Habitat 0
Physical Chemistry 3
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 0
BioIntegrity N/A
Causes and Sources of Impairment
Causes Use Support Cause Magnitude Sources Source Magnitude