Iowa DNR
Iowa DNR

ADBNet

Water Quality Assessments
Impaired Waters List

Knapp Creek IA 02-IOW-697

mouth (S34 T81N R8W Johnson Co.) to confluence with unnamed tributary in S16 T81N R8W Johnson Co.

Assessment Cycle
1994
Result Period
1990 - 1992
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 02-IOW-0172_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Documentation
Assessment Comments

Stream use assessment in Johnson County.

Basis for Assessment

Stream assessment form indicates below average habitat quality.  Relatively little diversity of substrates (a lot of shifting sand) and few pool/riffle sequences observed.   Frequent channelization and pasture use impacts noted.   Low diversity of fish observed.

Monitoring and Methods
Assessment Key Dates
5/1/1992 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