Iowa DNR
Iowa DNR

ADBNet

Water Quality Assessments
Impaired Waters List

Elk Creek IA 01-TRK-176

confluence with Steeles Br. (S26 T91N R4W Clayton Co.) to confluence with unnamed tributary in S13 T90N R4W Delaware Co.

Assessment Cycle
1994
Result Period
1990 - 1992
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 01-TRK-0280_2
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Documentation
Assessment Comments

Three 1991 stream use assessment sites: two in Delaware County and one in Clayton County.

Basis for Assessment

Two locations in B(LR) segment were assessed.  Downstream location had above average habitat and upstream location had below average habitat.  Good diversity of substrate types and several pool/riffle sequences observed at both locations.  Extensive pasture use impacts were noted at upstream location.  Pasture impacts were less evident at downstream location.  Fair diversity of fish observed at both locations.  Pasture use is probably greatest threat to integrity of aquatic community.

Monitoring and Methods
Assessment Key Dates
10/1/1991 DNR Stream Use Assessment
Methods
330 Fish surveys
375 Visual observation-- may not quantify some parameters-- single season-- by prof.
Monitoring Levels
Biological 0
Habitat 0
Physical Chemistry 0
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 0
BioIntegrity N/A