Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Browns Lake IA 06-WEM-1735

Woodbury County S32T87NR47W 2 mi W of Salix.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 06-WEM-00485-L_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Fully
Primary Contact Recreation
Threatened
Documentation
Assessment Comments

Assessment is based on results of (1) ISU lake survey in 1992, (2) surveys by IDNR Fisheries Bureau (3) ISU report on lake phytoplankton communities, and (4) results of U.S. EPA/IDNR fish tissue monitoring in 1995.

Basis for Assessment

Assessments of use support were reviewed by the DNR Fisheries Bureau.   DNR Fisheries biologist that aquatic plants pose a problem on an intermittent basis.

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