Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

North Branch North River IA 04-LDM-1106

mouth (S35 T77N R27W. Madison Co.) to confluence with unnamed tributary in S5 T77N R29W Madison Co.

Assessment Cycle
1994
Result Period
1990 - 1992
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-LDM-0315_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Documentation
Assessment Comments

Stream use assessment.

Basis for Assessment

Stream assess.  forms indicate above average habitat quality Some diversity of substr.  and several pool/riffle sequences resulting from stream intercepting limestone bedrock.   Stream is mostly meandering with some channeliz.  near bridges.   Rel.  good diversity of fish species observed including good population of juvenile ch.  catfish at one location.

Monitoring and Methods
Assessment Key Dates
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