Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Black Hawk Wildlife Area IA 04-RAC-1135

Sac County S9T86NR36W 2 mi S of Lake View.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Evaluated
Integrated Report
Category 0
Legacy ADBCode
IA 04-RAC-00477-L_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Fish Consumption
Not assessed
Documentation
Assessment Comments

Assessment based on surveys by IDNR Wildlife Bureau.

Basis for Assessment

Waterbody not designated for beneficial uses in the Iowa Water Quality Standards as of June 1996.   This publicly-owned waterbody was added to the list of Iowa wetlands in 1994 at the suggestion of the DNR Wildlife Bureau.  

Comments of DNR Wildlife Biologist indicate siltation and extreme water level fluctuations associated with a large contributing watershed area, in addition to a serious exotic macrophyte (purple loosestrife) infestation, are impairing wetland uses.   Biologist recommeded that the support of the aquatic life uses of this wetland be assessed as PS.

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