Cedar River IA 02-CED-468
from dam of Cedar Falls Impoundment (NW 1/4 S12 T89N R14W Black Hawk Co.) to upper end of impoundment (W line S2 T89N R14W Black Hawk Co.)
Assessment Comments
Assessment is based on results of IDNR ambient city monitoring and fish tissue (RAFT) monitoring.
Basis for Assessment
SUMMARY: Support of neither the Class A (primary contact recreation) uses nor the Class B(WW) aquatic life were assessed due to lack of data. Fish consumption uses remain assessed as "fully supporting." EXPLANATION: The USGS NASQAN water quality monitoring station at Cedar Falls, upon which previous assessments of the Class A and Class B(WW) uses have been based, was discontinued in 1995. Given the lack of recent water quality data, assessments of support for these beneficial uses were not developed. Fish consumption uses remain assessed as "fully supporting" based on results of EPA/DNR fish tissue (RAFT) monitoring in 1997 that showed levels of all contaminants in samples of whole-fish carp were below ½ of the respective FDA action levels and DNR levels of concern (see assessment for the 1998 report above).
Assessment Key Dates
| 9/5/2001 | Fixed Monitoring End Date |
| 11/9/1999 | Fixed Monitoring Start Date |
| 9/1/1997 | Biological Monitoring |
Methods
| 230 | Fixed station physical/chemical (conventional plus toxic pollutants) |
| 260 | Fish tissue analysis |
| 420 | Water column surveys (e.g. fecal coliform) |
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 |