Iowa DNR
ADBNet

Water Quality Assessments

Impaired Waters List

Floyd River IA 06-FLO-1552

mouth to West Branch Floyd R. in S2, T91N, R46W, Plymouth Co.

Assessment Cycle
1994
Release Status
Final
Result Period
1990 - 1992
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 06-FLO-0010_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Fish Consumption
Not assessed
Documentation
Assessment Comments

Assessment is based on results of IDNR ambient monthly water quality monitoring near James and September 1990 IDNR stream use assessment conducted in Plymouth county.

Basis for Assessment

Had no violations of Class B(WW) WQC; but assessed as PS due to known impairments due to habitat alterations related to hydrological modification (channelization) and due to flow aterations related to channelization, and due to siltation related to agriculture.

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 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
Causes and Sources of Impairment
Causes Use Support Cause Magnitude Sources Source Magnitude