Iowa DNR
ADBNet

Water Quality Assessments

Impaired Waters List

Old Mans Creek IA 02-IOW-686

from confluence with unnamed tributary (N line S1 T78N R7W Johnson Co.) to confluence with unnamed tributary in NE 1/4 S4 T78N R8W Johnson Co.

Assessment Cycle
1996
Result Period
1992 - 1994
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 02-IOW-0150_2
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Documentation
Assessment Comments

Assessment based on results of IDNR biocriteria monitoring in 1994.

Basis for Assessment

Used data from 1994 biocriteria site in Johnson County to update use support determination.  Fish and habitat metrics from stream use assessment protocol were applied to the data.  Habitat quality was fairly good.  A lot of snag habitat and diversity of current and depth in reach sampled.  Water clarity was poor at time of sampling making it difficult to catch fish.  Reasonably good diversity of fish for B(LR) stream including channel catfish, gar and walleye.

Monitoring and Methods
Assessment Key Dates
8/3/1994 Biological Monitoring
Methods
220 Non-fixed station physical/chemical monitoring (conventional pollutant only)
315 Regional reference site approach
320 Benthic macroinvertebrate surveys
330 Fish surveys
380 Quan. measurements of instream parms-- channel morphology-- floodplain-- 1-2 seasons-- by prof
Monitoring Levels
Biological 4
Habitat 4
Physical Chemistry 1
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 1
BioIntegrity N/A