Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Twelve-mile Lake IA 04-UDM-1231

Emmet County S21T98NR34W 4 mi. SW of Wallingford.

Assessment Cycle
1994
Result Period
1990 - 1992
Designations
Assessment Type
Evaluated
Integrated Report
Category 0
Legacy ADBCode
IA 04-UDM-01060-L_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Not assessed
Documentation
Assessment Comments

Assessment based on reports by IDNR Wildlife Bureau.

Basis for Assessment

Support of the Class B(LW) aquatic life uses was assessed as FST, with high levels of nutrients in agricultural nonpoint source runoff believed to threaten the continued support of these uses.

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