Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

North Bear Creek IA 01-UIA-255

mouth (S25 T100N R6W Winneshiek Co.) to IA/MN state line (Winneshiek Co.)

Assessment Cycle
2000
Result Period
1996 - 1998
Designations
Assessment Methodology
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 01-UIA-0190_0
Overall Use Support
Fully
Aquatic Life Use Support
Fully
Fish Consumption
Not assessed
Documentation
Assessment Comments

Assessment is based on a survey of trout reproduction in Iowa streams prepared by the DNR Fisheries Bureau.

Basis for Assessment

SUMMARY:  The Class B(CW) coldwater aquatic life uses were assessed as "fully supported."  Fish consumption uses remain "not assessed."  EXPLANATION:  Based on a summary of trout reproduction in Iowa streams prepared by the DNR Fisheries Bureau, the support of the Class B(CW) uses was changed from "fully supported / threatened" to "fully supported."  According to Moeller (1999), North Bear Creek is in the category of Iowa trout streams with long-term, consistent natural reproduction; these streams are capable of maintaining a viable population of trout without stocking.   Assessment is also based on results of the 1994 DNR biocriteria sampling (see assessment for the 1996 report above).   Based on results of the 1994 sampling, this waterbody probably should have been assessed as "fully supported" (not threatened).   Fish consumption uses remain "not assessed" due to lack of recent fish tissue monitoring in this stream reach.

Monitoring and Methods
Assessment Key Dates
4/16/2002 Biological Monitoring
Methods
330 Fish surveys
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