Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Elk Creek IA 02-SHL-798

mouth to east line of S13 T99N R22W Worth Co.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 02-SHL-0030_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Documentation
Assessment Comments

Assessment is based on results of a DNR stream use assessment in November 1994.

Basis for Assessment

Continued to use the assessment of support of the Class B(LR) aquatic life uses developed for the 1996 report (=PS).   Review of the field sheet from the November 1994 DNR stream use assessment shows that only one fish species (fathead minnow) was captured during the assessment (although seining efficiency was hindered by large boulders in the stream).   Follow-up monitoring is needed to determine the status of the aquatic communities and habitats and to determine the degree to which the Class B(LR) uses may be impaired.

Monitoring and Methods
Assessment Key Dates
11/1/1994 DNR Stream Use Assessment
Methods
330 Fish surveys
375 Visual observation-- may not quantify some parameters-- single season-- by prof.
Monitoring Levels
Biological 2
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 Moderate
  • Pasture grazing - Riparian
  • Moderate
Other habitat alterations Aquatic Life Support Moderate
  • Pasture grazing - Riparian
  • Moderate