Iowa DNR

Water Quality Assessments

Impaired Waters List

Beaver Creek IA 02-CED-555

mouth (S34, T90N, R14W, Black Hawk Co.) to confluence with South Beaver Cr. in S25, T90R, R17W, Butler Co.

Assessment Cycle
Release Status
Result Period
1990 - 1992
Assessment Type
Integrated Report
Category 0
Legacy ADBCode
IA 02-CED-0400_0
Overall Use Support
Aquatic Life Use Support
Fish Consumption
Not assessed
Assessment Comments

Stream use assessment near Black Hawk/Butler co line.

Basis for Assessment

Stream assessment form indicates fair habitat quality for B(WW) stream in this region.   Sandy run habitat was most dominant type observed.   Best cover for fish consisted of numerous woody debris snags.   Rel.  good riparian conditions and meandering stream channel are also positive attributes.   Frequent stream bank erosion noted is a symptom of susceptability to high flow.  Fair diversity of fish observed, but generally low numbers of fish caught.   Size of stream and turbidity may have reduced sampling effectiveness.   Data from quarterly monitoring station shows no violations of Class B(WW) WQS.

Monitoring and Methods
Assessment Key Dates
7/1/1992 DNR Stream Use Assessment
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
Causes and Sources of Impairment
Causes Use Support Cause Magnitude Sources Source Magnitude