Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Walnut Creek IA 04-LDM-1069

mouth (S24 T77N R21W Marion Co.) to headwaters in NE1/4 SE30 T79N R21W Jasper Co.

Assessment Cycle
2002
Result Period
1998 - 2000
Designations
Assessment Methodology
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-LDM-0227_0
Overall Use Support
Fully
Aquatic Life Use Support
Fully
Documentation
Assessment Comments

Assessment is based on results of chemical and biological monitoring conducted as part of the Walnut Creek Watershed Resoration project from 1995-1997.

Basis for Assessment

SUMMARY:  The general aquatic life uses remain assessed as "fully supported."   EXPLANATION:  The aquatic life uses remain assessed as "fully supported" based on results of the chemcial and biologica monitoring conducted on this stream segment in 1995-1997 as part of the Walnut Creek Watershed Monitoring Project (see assessment for the 2000 report above).   In part, these data are less than five years old and, according to IDNR's methodology for Section 305(b) assessments, are thus appropriate for characterizing current water quality conditions.

Monitoring and Methods
Assessment Key Dates
8/1/1997 Fixed Monitoring End Date
4/1/1995 Fixed Monitoring Start Date
Methods
330 Fish surveys
240 Non-fixed station physical/chemical (conventional + toxicants)
320 Benthic macroinvertebrate surveys
Monitoring Levels
Biological 4
Habitat 4
Physical Chemistry 3
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 0
BioIntegrity N/A