Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Catfish Creek IA 01-TRK-126

south line of S9 T88N R2E (Dubuque Co.) to west line of S30 T88N R2E Dubuque Co.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 01-TRK-0100_3
Overall Use Support
Fully
Aquatic Life Use Support
Fully
Fish Consumption
Not assessed
Documentation
Assessment Comments

1995 biocriteria: habscr/fshscr = 31/13 (shock, 18 spp., 5 fams.).

Basis for Assessment

Used a review of results from the July 1995 DNR biocriteria sampling in Dubuque County to upgrade the assessment of support of the Class B(CW) uses from FST to FS due to (1) presence of the expected game fish species (i.e., brown trout (6), rainbow trout (2), & brook trout (3)), (2) presence of a very diverse fish community (18 species from 5 families) for streams in the Driftless Area ecoregion (52), (3) presence of all the expected fish taxa (9 of 9) for streams in this region, and (4) indications of very high quality aquatic habitats.

Monitoring and Methods
Assessment Key Dates
7/28/1995 Biological Monitoring
Methods
220 Non-fixed station physical/chemical monitoring (conventional pollutant only)
315 Regional reference site approach
320 Benthic macroinvertebrate surveys
330 Fish surveys
380 Quan. measurements of instream parms-- channel morphology-- floodplain-- 1-2 seasons-- by prof
Monitoring Levels
Biological 4
Habitat 4
Physical Chemistry 1
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 1
BioIntegrity Good
Causes and Sources of Impairment
Causes Use Support Cause Magnitude Sources Source Magnitude
Other habitat alterations Overall Use Support Not Impairing
  • Agriculture
  • Bank or Shoreline Modification/Destabilization
  • Habitat Modification (other than Hydromodification)
  • Not Impairing
  • Not Impairing
  • Not Impairing
Other habitat alterations Aquatic Life Support Not Impairing
  • Agriculture
  • Bank or Shoreline Modification/Destabilization
  • Habitat Modification (other than Hydromodification)
  • Not Impairing
  • Not Impairing
  • Not Impairing
Siltation Overall Use Support Not Impairing
  • Agriculture
  • Bank or Shoreline Modification/Destabilization
  • Habitat Modification (other than Hydromodification)
  • Not Impairing
  • Not Impairing
  • Not Impairing
Siltation Aquatic Life Support Not Impairing
  • Agriculture
  • Bank or Shoreline Modification/Destabilization
  • Habitat Modification (other than Hydromodification)
  • Not Impairing
  • Not Impairing
  • Not Impairing