Missouri River IA 06-WEM-1707
from the Iowa/Missouri state line (Fremont Co.) to confluence with Platte R. west of Glenwood in Mills Co.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1994
Result Period
1990 - 1992
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 06-WEM-0010_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Fish Consumption
Fully
Primary Contact Recreation
Partial
Documentation
Assessment Comments
Assessment is based on (1) surveys of Nebraska fisheries biologists and consultation with DNR staff and (2) fish tissue monitoring in 1992.
Basis for Assessment
Again have all fish contaminants < 1/2 FDA action levels (detected traces of dioxins and furans in 1991, but follow-up for 1992 RAFT showed no detectable levels of these substances). Overall assessment will remain PS due to impacts of channelization, flow modifications of the river, and due to siltation delivered to the river from the larger tribs (e.g., Platte R.).
Monitoring and Methods
Assessment Key Dates
Methods
| 120 | Surveys of fish and game biologists/other professionals |
| 260 | Fish tissue analysis |
Monitoring Levels
| Biological | 0 |
| Habitat | 0 |
| Physical Chemistry | 0 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 0 |
| BioIntegrity | N/A |