Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Mill Creek (aka Big Mill Creek) IA 01-TRK-115

Alternate name(s) for this segment: Big Mill Creek

confluence with Little Mill Cr. to confluence with unnamed tributary in S1 T86N R3E Jackson Co.

Assessment Cycle
2000
Result Period
1996 - 1998
Designations
Assessment Methodology
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 01-TRK-0030_2
Overall Use Support
Fully
Aquatic Life Use Support
Fully
Fish Consumption
Not assessed
Documentation
Assessment Comments

Assessment is based on survey of trout reproduction.

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 Class B(CW) uses were assessed as "fully supported."  According to Moeller (1999), this reach of Big Mill 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.   Fish consumption uses remain "not assessed" due to lack of recent fish tissue monitoring in this stream reach.

Monitoring and Methods
Assessment Key Dates
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