Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Bear Creek IA 01-VOL-298

south line of S18 T91N R4W (Clayton Co.) to west line of S23 T91N R5W Clayton Co

Assessment Cycle
2004
Result Period
2000 - 2002
Designations
Assessment Methodology
Assessment Type
Monitored
Integrated Report
Category 2a
Legacy ADBCode
IA 01-VOL-0030_2
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Not assessed
Documentation
Assessment Comments

Assessment is based on a 2002 summary of trout reproduction in Iowa streams prepared by the IDNR Fisheries Bureau.

Basis for Assessment

SUMMARY:  The Class B(CW) coldwater aquatic life uses remain assessed (monitored) as "fully supported / threatened” (minor impacts) based on the April 2002 summary of trout reproduction in Iowa streams prepared by the IDNR Fisheries Bureau.   Fish consumption uses remain "not assessed."  This assessment is the same as that developed for the 2002 reporting cycle.

EXPLANATION:  Based on the assessment developed for the 2000 report (see above), and based on an updated summary of trout reproduction in Iowa streams prepared by the DNR Fisheries Bureau in April 2002, the Class B(CW) uses remain assessed as "fully supported / threatened."  According to the updated summary, this reach of Bear Creek is in the category of Iowa trout streams that exhibit recent, but inconsistent reproductive success and that are generally not capable of maintaining a viable population for the target trout species at this time.   Fish consumption uses remain "not assessed" due to lack of 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