Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Rock River IA 06-BSR-1538

from confluence with Kanranzi Cr. (S28 T100N R45W Lyon Co.) to the IA/MN state line

Assessment Cycle
1996
Result Period
1992 - 1994
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 06-BSR-0040_2
Overall Use Support
Fully
Aquatic Life Use Support
Fully
Documentation
Assessment Comments

Assessment based on results of DNR stream use assessments conducted in Lyon county.

Basis for Assessment

Used assessment of support of the Class B(LR) aquatic life uses developed for the 1994 report.

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