Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Lake Meyer IA 01-TRK-158

Winneshiek County S34T97NR9W 3 mi SW of Calmar.

Assessment Cycle
1992
Result Period
1988 - 1990
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Trophic
Eutrophic
Trend
Stable
Legacy ADBCode
IA 01-TRK-02245-L_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Fish Consumption
Not assessed
Primary Contact Recreation
Partial
Documentation
Assessment Comments

Monitored in 1992 by ISU for Clean Lakes Classification Study (1994).

Basis for Assessment

Both fishable and swimmable uses were assessed as PS for the 1992 report; fish uses were assessed as PS and swim uses not assessed.

Causes and Sources of Impairment
Causes Use Support Cause Magnitude Sources Source Magnitude
Algal Grwth/Chlorophyll a Overall Use Support Moderate
  • Internal nutrient cycling (primarily lakes)
  • Moderate
Algal Grwth/Chlorophyll a Primary Contact Recreation Moderate
  • Internal nutrient cycling (primarily lakes)
  • Moderate
Noxious aquatic plants Overall Use Support Moderate
  • Internal nutrient cycling (primarily lakes)
  • Moderate
Noxious aquatic plants Primary Contact Recreation Moderate
  • Internal nutrient cycling (primarily lakes)
  • Moderate
Nutrients Overall Use Support Moderate
  • Agriculture
  • Internal nutrient cycling (primarily lakes)
  • Natural Sources
  • Moderate
  • Moderate
  • Slight
Nutrients Aquatic Life Support Moderate
  • Agriculture
  • Internal nutrient cycling (primarily lakes)
  • Natural Sources
  • Moderate
  • Moderate
  • Slight
Nutrients Primary Contact Recreation Moderate
  • Agriculture
  • Internal nutrient cycling (primarily lakes)
  • Natural Sources
  • Moderate
  • Moderate
  • Slight
Organic enrichment/Low DO Overall Use Support Moderate
  • Internal nutrient cycling (primarily lakes)
  • Moderate
Organic enrichment/Low DO Aquatic Life Support Moderate
  • Internal nutrient cycling (primarily lakes)
  • Moderate
Siltation Overall Use Support Moderate
  • Agriculture
  • Natural Sources
  • Moderate
  • Slight
Siltation Aquatic Life Support Moderate
  • Agriculture
  • Natural Sources
  • Moderate
  • Slight