Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Little Cedar River IA 02-CED-578

from confluence with Burr Oak Cr. (S12 T98N R16W Mitchell Co.) to dam of impoundment at Stacyville in SE 1/4 S31 T100N R16W Mitchell Co.

Assessment Cycle
1996
Result Period
1992 - 1994
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 02-CED-0480_1
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Not assessed
Documentation
Assessment Comments

Assessment is based on results of three DNR stream use assessments in August 1995.

Basis for Assessment

Used results of four DNR stream use assessments at three locations (NNE Stacyville, near L.  Cedar, and at Pioneer Park) to assess support of the B(WW) aquatic life uses as FST due to (1) habitat scores (26, 26, 24, 25) above the overall average score (22) for DNR stream use assessments, (2) fish scores (14, 13, 13 (electrofishing) and 9 seining) better than the 75th percentile score (12) for stream assessments made with electrofishers and slightly below for assessments made with seines, and (3) exceptional diversity of fish species; e.g., 22, 23, 16 including fair numbers of adult and juvenile smallmouth bass.

Monitoring and Methods
Assessment Key Dates
8/1/1995 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
  • Source Unknown
  • Not Impairing
Siltation Overall Use Support Not Impairing
  • Bank or Shoreline Modification/Destabilization
  • Pasture grazing - Riparian
  • Not Impairing
  • Not Impairing