Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Silver Lake IA 04-UDM-1229

Palo Alto County S20T95NR34W 2 mi W of Ayrshire.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Evaluated
Integrated Report
Category 0
Legacy ADBCode
IA 04-UDM-01020-L_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Fish Consumption
Not assessed
Primary Contact Recreation
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, the Class B(LW) aquatic life uses remain assessed as PS due to organic enrichment from naturally occurring internal nutrient recycling in this shallow glacial lake.   The Class A (primary contact recreation) uses remain "not assessed" due to lack of swimming beach and swimming uses at this lake.

Monitoring and Methods
Assessment Key Dates
Methods
120 Surveys of fish and game biologists/other professionals
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