Iowa DNR
ADBNet

Water Quality Assessments

Impaired Waters List

Cedar Creek IA 03-SKU-905

mouth (S9 T71N R7W Henry Co.) to confluence with Little Cedar Cr. in S17 T70N R7W Henry Co.

Assessment Cycle
1996
Result Period
1992 - 1994
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 03-SKU-0090_1
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Documentation
Assessment Comments

Basis for Assessment

Used results from DNR fixed station water quality monitoring, and results from the October 1990 DNR stream use assessment WSW of Oakland Mills to assess support of the Class B(WW) uses as FST due to (1) habitat score (32) far better than the overall median score (22) for DNR stream use assessments (high score primarily due to above average low flow characteristics of this relatively large stream) and (2) indications on field sheet of very diverse substrates, several pool/riffle sequences, only isolated channel alterations, and moderately stable stream banks.   Threats to continued support of aquatic life uses include agricultural nonpoint source runoff and alterations to stream channels in headwater reaches.

Monitoring and Methods
Assessment Key Dates
10/1/1990 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