Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Soldier Creek IA 04-UDM-1277

mouth (S19 T89N R28W Webster Co.) to confluence with unnamed tributary in S26 T90N R28W Webster Co.

Assessment Cycle
2002
Result Period
1998 - 2000
Designations
Assessment Methodology
Assessment Type
Evaluated
Integrated Report
Category 0
Legacy ADBCode
IA 04-UDM-0290_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Documentation
Assessment Comments

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

Basis for Assessment

SUMMARY:  The Class B(LR) aquatic life uses remain assessed as "partially supported."  The assessment category, however, is changed from "monitored" to "evaluated."  EXPLANATION:  Continue to use the assessment developed for the 1998 and 2000 reports (see above) that was based on results of the 1994 IDNR stream use assessment.   However, because these data are now considered too old (greater than five years) to accurately characterize current water quality conditions, the assessment category is changed from "monitored" (indicating an assessment with relatively high confidence) to "evaluated" (indicating an assessment with relatively low confidence).   Follow-up monitoring is needed to better define the status of the aquatic communities of this stream and to determine the degree to which the Class B(LR) uses may be impaired.

Monitoring and Methods
Assessment Key Dates
11/1/1994 Biological Monitoring
Methods
330 Fish surveys
375 Visual observation-- may not quantify some parameters-- single season-- by prof.
150 Monitoring data more than 5 years old
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
Cause Unknown Overall Use Support Moderate
  • Source Unknown
  • Moderate
Cause Unknown Aquatic Life Support Moderate
  • Source Unknown
  • Moderate