Des Moines River IA 04-UDM-1212
from the Interstate 80/35 bridge (S17 T79N R24W Polk Co.) to Saylorville Dam in S30 T80N R24W Polk Co.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1996
Result Period
1992 - 1994
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-UDM-0010_3
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Fully
Documentation
Assessment Comments
Basis for Assessment
Assess Class B aquatic life use as FST due to lack of any violations for Class B WQC (except for Hg and Cu) and due to continued extremely high use of the tailwater of Saylorville Dam for fishing. Assess Class B fish consumption use as FS due to very low levels of fish contamination as reported by the ISU monitoring network: all levels of pesticides and mercury << 1/2 FDA action levels.
Monitoring and Methods
Assessment Key Dates
| 9/18/2001 | Fixed Monitoring End Date |
| 10/5/1999 | Fixed Monitoring Start Date |
Methods
| 230 | Fixed station physical/chemical (conventional plus toxic pollutants) |
| 260 | Fish tissue analysis |
Monitoring Levels
| Biological | 0 |
| Habitat | 0 |
| Physical Chemistry | 3 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 0 |
| BioIntegrity | N/A |