Mississippi River IA 01-NEM-61
from Iowa R. (Louisa Co.) to Lock & Dam 15 at Davenport Scott Co.
Assessment Comments
008247 (1117MBR/ US EPA) downstream from Muscatine, 006664 (1117MBR/US EPA) downstream from Linwood.
Basis for Assessment
Used results of fish tissue monitoring conducted downstream from Muscatine for the 1995 RAFT program to assess fish consumption uses as FS due to levels of all contaminants in samples of bottom feeding fish (carp fillets) and predator fish (white bass fillets) less than 1/2 FDA action levels and less than DNR levels of concern. Also used results of RAFT trend monitoring dowstream from Linwood: levels of all contaminants in the sample of whole-fish carp were less than 1/2 FDA action levels and DNR levels of concern. The 1/4/95 list of CSOs indicates Muscatine has 6 CSO discharges that are likely contributing sources of pathogens, BOD and nutrient enrichment in the Mississippi River near Muscatine. No monitoring data are available to assess the impact of CSOs.
Assessment Key Dates
| 12/31/1995 | Fixed Monitoring End Date |
| 1/1/1995 | Fixed Monitoring Start Date |
Methods
| 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 |