Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Nine Eagles Lake IA 05-GRA-1361

Decatur County S18T67NR25W 3.5 mi. SE of Davis City.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 05-GRA-01010-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 excessive turbidity from natural sources.

Monitoring and Methods
Assessment Key Dates
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)
260 Fish tissue analysis
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