Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Lacey Keosauqua Lake IA 04-LDM-1008

Van Buren County S2T68NR10W 1 mi S of Keosauqua

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Evaluated
Integrated Report
Category 0
Legacy ADBCode
IA 04-LDM-00160-L_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Fish Consumption
Not assessed
Primary Contact Recreation
Partial
Drinking Water
Not assessed
Documentation
Assessment Comments

Basis for Assessment

The assessments developed for the 1994 and 1996 reports were reviewed and approved by the DNR Fisheries Bureau.   Thus, both the Class A (primary contact recreation) uses and the Class B(LW) aquatic life uses were assessed as PS due to high levels of turbidity from nonpoint runoff in the lake watershed.   Nearly the entire watershed is in public ownership, and the turbidity is believed due to soil type.   No information available for developing an assessment of support of the Class C (drinking water) uses.

Monitoring and Methods
Assessment Key Dates
10/18/2001 Fixed Monitoring End Date
5/22/2000 Fixed Monitoring Start Date
Methods
340 Primary producer surveys (phytoplankton/periphyton/macrophyton)
420 Water column surveys (e.g. fecal coliform)
120 Surveys of fish and game biologists/other professionals
222 Non-fixed-station monitoring (conventional during key seasons and flows)
Monitoring Levels
Biological 0
Habitat 0
Physical Chemistry 3
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 0
BioIntegrity N/A