Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Little Maquoketa River IA 01-TRK-131

mouth (Dubuque Co.) to confluence with Hogans Br. in S36 T89N R1W Dubuque Co.

Assessment Cycle
1996
Result Period
1992 - 1994
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 01-TRK-0140_1
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Not assessed
Documentation
Assessment Comments

1990 stream use assessment in Dubuque county.

Basis for Assessment

Assessed support of aquatic life uses as FST due to exceptional habitat score (32) and due to information gathered during biocriteria sampling during 1995.  Fish and habitat metrics from stream use assessment protocol were applied to the data.  Data indicate very good! habitat quality.  Moderate diversity and good numbers of fish including many smallmouth bass.

Monitoring and Methods
Assessment Key Dates
8/1/1990 DNR Stream Use Assessment
Methods
360 HABITAT ASSESSMENT
330 Fish surveys
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
Nitrate Overall Use Support Not Impairing
  • Agriculture
  • Not Impairing
Nitrate Aquatic Life Support Not Impairing
  • Agriculture
  • Not Impairing
Nutrients Overall Use Support Not Impairing
  • Agriculture
  • Not Impairing
Nutrients Aquatic Life Support Not Impairing
  • Agriculture
  • Not Impairing
Turbidity Overall Use Support Not Impairing
  • Agriculture
  • Not Impairing
Turbidity Aquatic Life Support Not Impairing
  • Agriculture
  • Not Impairing