Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Swan Lake Branch IA 04-RAC-1142

mouth to W line S4T80NR28W Dallas Co.

Assessment Cycle
1994
Result Period
1990 - 1992
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-RAC-0052_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Not assessed
Documentation
Assessment Comments

Stream use assessment.

Basis for Assessment

Stream assessment form indicates fairly good habitat quality for a small stream in this region.   Some diversity of substrate and several pool/riffle sequences observed.   Channel bends, undercut banks, and woody debris provide additional cover and structure.  Lacking deep pool habitat where assessed.   Fairly good diversity of fish species dominated by cyprinids.   Siltation of riffles noted as well as isolated pasture impacts along the stream.

Monitoring and Methods
Assessment Key Dates
9/1/1992 DNR Stream Use Assessment
Methods
330 Fish surveys
375 Visual observation-- may not quantify some parameters-- single season-- by prof.
Monitoring Levels
Biological 3
Habitat 3
Physical Chemistry 0
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 0
BioIntegrity N/A