Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Bluff Creek IA 04-UDM-1248

mo to dam of Don Williams Lake Boone Co

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-UDM-0160_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Not assessed
Documentation
Assessment Comments

Stream use assessment.

Basis for Assessment

Continue to use the assessment of support of the Class B(LR) aquatic life uses used for the 1996 report.  Due to relatively low number of species/families (8/2) for streams in the Des Moines Lobe subecoregion (47b), and due to the presence of less than a majority of the expected fish taxa (5 of 11) for streams in this subregion, follow-up monitoring is needed.   Low diversity likely due to difficulty seining through coarse substrates, but follow-up monitoring is needed to (1) update this assessment, (2) determine the status of the aquatic communities and habitats, and (3) determine the degree to which the Class B(LR) uses may be impaired.

Monitoring and Methods
Assessment Key Dates
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