Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Bruce Creek IA 01-MAQ-60

mouth (S19/30 line T91N R6W Clayton Co.) to unnamed tributary in S27 T91N R7W Fayette Co.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Evaluated
Integrated Report
Category 0
Legacy ADBCode
IA 01-MAQ-0290_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Documentation
Assessment Comments

Stream use assessment in Fayette County.

Basis for Assessment

Used a rewview of the field sheet from the October 1991 DNR stream use assessment in Fayette County to upgrade the assessment of support of the Class B(LR) aquatic life uses from PS to FST due to (1) presence of a moderately diverse fish community (10 species from 2 families) for streams in the Iowan Surface subecoregion (47c) and (2) presence of a majority of the expected fish taxa (6 of 11) for streams in this subregion.  Comments regarding "very few fish" on the field sheet are difficult to interpret; ie, lack of good numbers of fish may be related to a late season collectoin (mid-October) or to relatively short reach of stream sampled (200 feet).  The primary impacts to the physical characteristics of this stream are frequent pasturing of the riparian corridor and frequent streambank erosion.  The data upon which this assessment is based is more than 5 years old.  Additional monitoring is needed to update this assessment.

Monitoring and Methods
Assessment Key Dates
10/1/1991 DNR Stream Use Assessment
Methods
360 HABITAT ASSESSMENT
330 Fish surveys
150 Monitoring data more than 5 years old
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 Aquatic Life Support Slight
  • Erosion and Sedimentation
  • Pasture grazing - Riparian
  • Slight
  • Slight