Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Lost Island Lake IA 06-LSR-1632

Palo Alto County S31T97NR34W 3 mi N of Ruthven.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 06-LSR-02390-L_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Fully
Primary Contact Recreation
Threatened
Documentation
Assessment Comments

Monitored in 1990 by ISU as part of the Clean Lakes Classification Study and used results of August 1994 fish tissue monitoring.

Basis for Assessment

Used assessments of support of the Class A primary contact recreation uses (=FST), Class B(LW) aquatic life uses (=FST), and fish consumption uses (=FS) developed for the 1994 and 1996 reports.   Assessments were reviewed by the DNR Fisheries Bureau in 1998.   DNR Fisheries suggested that primary threats to full support of designated uses were nutrients and organic enrichment from natural shallowness.

Monitoring and Methods
Assessment Key Dates
Methods
340 Primary producer surveys (phytoplankton/periphyton/macrophyton)
120 Surveys of fish and game biologists/other professionals
222 Non-fixed-station monitoring (conventional during key seasons and flows)
260 Fish tissue analysis
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