Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Dunlap Pond IA 06-BOY-1507

Harrison County S2T81NR41W at E edge of Dunlap.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Evaluated
Integrated Report
Category 0
Legacy ADBCode
IA 06-BOY-00270-L_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Fish Consumption
Not assessed
Documentation
Assessment Comments

Assessment based on reports by IDNR Wildlife Bureau.

Basis for Assessment

The DNR Wildlife biologist recommended that the assesssment of support of the Class B(LW) aquatic life uses be upgraded from NS to PS, with siltation from agricultural nonpoint sources the primary threat to water quality.

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
Causes and Sources of Impairment
Causes Use Support Cause Magnitude Sources Source Magnitude
Siltation Overall Use Support Moderate
  • Agriculture
  • Bank or Shoreline Modification/Destabilization
  • Natural Sources
  • Moderate
  • Slight
  • Slight
Siltation Aquatic Life Support Moderate
  • Agriculture
  • Bank or Shoreline Modification/Destabilization
  • Natural Sources
  • Moderate
  • Slight
  • Slight