Des Moines River IA 04-LDM-1020
upper end of Red Rock Reservoir (W line S34 T77N R20W Marion Co.) to confluence with South R. in S12 T77N R22W Warren Co.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1992
Result Period
1988 - 1990
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-LDM-0040_1
Overall Use Support
Not supporting
Aquatic Life Use Support
Threatened
Fish Consumption
Not supporting
Primary Contact Recreation
Not supporting
Documentation
Assessment Comments
Assessment is based on IDNR ambient monthly city monitoring dstr from Des Moines.
Basis for Assessment
Class B uses assessed as NS due to fish consumpt advisory issued in Dec 1989; aquatic life support assessed as FST due to lack of Class B(WW) WQC violations. Support of Class A uses assessed as NS (as in previous 305(b)s) due to levels of fecal coliforms exceeding Class A WQC in 15 of 19 samples collect at approx average flows; source of fecals believed the DM WWTP.
Monitoring and Methods
Assessment Key Dates
Methods
| 420 | Water column surveys (e.g. fecal coliform) |
| 230 | Fixed station physical/chemical (conventional plus toxic pollutants) |
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 |