Iowa DNR

Water Quality Assessments

Impaired Waters List

Turkey River IA 01-TRK-148

mouth (Clayton Co.) to confluence with Volga R. in S26, T92N, R4W, Clayton Co.

Assessment Cycle
Release Status
Result Period
1994 - 1996
Assessment Type
Integrated Report
Category 0
Legacy ADBCode
IA 01-TRK-0200_0
Overall Use Support
Aquatic Life Use Support
Fish Consumption
Not assessed
Assessment Comments

DNR Quarterly WQ monitoring conducted in FY96 and FY97 (21IOWA 250221).

Basis for Assessment

Used results from the DNR quarterly WQ monitoring station near Garber to assess support of the Class B(WW) aquatic life uses as FS due to lack of violations of Class B(WW) water quality criteria in the 8 samples collected over the 1996-97 period.   Revised the assessment to FST due to potential threats from nonpoint sources.   In addtion, the March/ April 1998 Iowa Conservationist identifies the Turkey River from Elkader to Osterdock as providing good angling opportunities for channel catfish.

Monitoring and Methods
Assessment Key Dates
230 Fixed station physical/chemical (conventional plus toxic pollutants)
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