Iowa DNR
ADBNet

Water Quality Assessments

Impaired Waters List

Cedar River IA 02-CED-479

from Rock Cr. nr Orchard (S24 T97N R17W Floyd Co.) to Iowa / Minnesota state line (S8 T100N R18W Mitchell Co.)

Assessment Cycle
1992
Result Period
1988 - 1990
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 02-CED-0110_3
Overall Use Support
Not supporting
Aquatic Life Use Support
Not assessed
Fish Consumption
Not assessed
Primary Contact Recreation
Not supporting
Documentation
Assessment Comments

Assessment based on water quality monitoring.

Basis for Assessment

The only WQC violated was for fecals:  13 samples were analyzed during the two-year period; 9 were collect.  at approx average flows; 7 samples had levels of fecals > Class A WQC (=78% =NS).   According to VanSteenburg (FO2), Hormel and Excel are two industries likely responsible for high levels of fecals in Cedar R; Hormel has its own WWTP and feedlot.   Reach was ended at Mitchell Dam; i.e., fecals would possibly settle out in the Mitchell Impoundment.

Monitoring and Methods
Assessment Key Dates
Methods
210 Fixed station physical/chemical monitoring (conventional pollutants only)
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