Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Bloody Run IA 01-YEL-433

mouth (Clayton Co.) to west line of S22 T95N R4W Clayton Co.

Assessment Cycle
2002
Result Period
1998 - 2000
Designations
Assessment Methodology
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 01-YEL-0060_0
Overall Use Support
Fully
Aquatic Life Use Support
Fully
Fish Consumption
Not assessed
Documentation
Assessment Comments

Assessment is based on (1) results of monitoring of fish, macroinvertebrates, habitat & water quality as part of the Sny Magill / Bloody Run project and (2) DNR summary of trout reproduction. Highlighted in Iowa Conservationist.

Basis for Assessment

SUMMARY:  The Class B(CW) coldwater aquatic life uses are assessed as "fully supported."  Fish consumption uses remain "not assessed."  EXPLANATION:  Based on the assessment developed for the 2000 report (see above), and based on an updated summary of trout reproduction in Iowa streams prepared by the DNR Fisheries Bureau in April 2002, the Class B(CW) uses were upgraded from "fully supported / threatened" to "fully supported."  According to this summary, this reach of Sny Magill Creek is in the category of Iowa trout streams that have fairly consistent natural reproduction and are capable of maintaining a viable population for the target trout species without any stocking.   This assessment is supported by results of chemical water quality monitoring conducted from 1996 through 1999 (see assessment for the 2000 report above).   Fish consumption uses remain "not assessed" due to lack of fish tissue monitoring in this stream reach.

Monitoring and Methods
Assessment Key Dates
4/16/2002 Biological Monitoring
9/30/1999 Fixed Monitoring End Date
10/1/1995 Fixed Monitoring Start Date
Methods
240 Non-fixed station physical/chemical (conventional + toxicants)
320 Benthic macroinvertebrate surveys
330 Fish surveys
380 Quan. measurements of instream parms-- channel morphology-- floodplain-- 1-2 seasons-- by prof
Monitoring Levels
Biological 4
Habitat 4
Physical Chemistry 3
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 0
BioIntegrity N/A