Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

East Fork Crooked Creek IA 03-SKU-919

mouth to Phillips Cr S8T73NR5W HenryCo

Assessment Cycle
1996
Result Period
1992 - 1994
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 03-SKU-0125_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Fish Consumption
Not assessed
Documentation
Assessment Comments

Stream use assessment.

Basis for Assessment

Used results of the July 1991 DNR stream use assessments to assess support of the Class B(LR) aquatic life uses as PS due to (1) habitat scores (21 and 18) worse than the overall median score (22) for DNR stream use assessments, (2) indications on field sheets of unstable, eroding stream banks, little substrate diversity, and extensive channel alterations (straightening), and (3) fish communities of relatively few (3) species, and most species are pollution- tolerant (e.g., red shiner and green sunfish).

Monitoring and Methods
Assessment Key Dates
7/1/1991 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