Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Coldwater Creek IA 02-SHL-789

mouth (S29 T93N R16W Butler Co.) to confluence with unnamed tributary in S26 T94N R19W Cerro Gordo Co.

Assessment Cycle
1996
Result Period
1992 - 1994
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 02-SHL-0023_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Documentation
Assessment Comments

Stream use assessment in 1992.

Basis for Assessment

Used assessment of support of the Class B(LR) aquatic life uses developed for the 1994 report (=FST).  Continued support of uses is threatened by overpasturing of riparian zone and by fish kills caused by mismanagement of livestock waste.

Monitoring and Methods
Assessment Key Dates
6/1/1992 DNR Stream Use Assessment
Methods
330 Fish surveys
375 Visual observation-- may not quantify some parameters-- single season-- by prof.
Monitoring Levels
Biological 3
Habitat 3
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
Other habitat alterations Overall Use Support Not Impairing
  • Agriculture
  • Grazing related Sources
  • Pasture grazing - Riparian
  • Not Impairing
  • Not Impairing
  • Not Impairing
Other habitat alterations Aquatic Life Support Not Impairing
  • Agriculture
  • Grazing related Sources
  • Pasture grazing - Riparian
  • Not Impairing
  • Not Impairing
  • Not Impairing
Unionized Ammonia Overall Use Support Not Impairing
  • Agriculture
  • Intensive Animal Feeding Operations
  • Not Impairing
  • Not Impairing
Unionized Ammonia Aquatic Life Support Not Impairing
  • Agriculture
  • Intensive Animal Feeding Operations
  • Not Impairing
  • Not Impairing