Upper Iowa River IA 01-UIA-236
mouth (Allamakee Co.) to Lane's Bridge at river mile 6 (NW 1/4 S31 T100N R4W Allamakee Co.).
Assessment Comments
821131 (21IOWA) near New Albin. 006641 (1117MBR) near New Albin.
Basis for Assessment
Used methods for assessing support of Class A (primary contact recreation) uses defined in EPA's 1998 Guidelines for Section 305(b) reporting: For the 13 samples collected, the geometric mean of 83 fecal coliforms per 100 ml and only 8% of samples > 400 fecal coliforms per 100 ml suggests that the Class A use is Fully Supported. Overall assessment considered fully supported/threatened due to known threats from agricultural nonpoint sources. No violations of Class B(WW) WQ quality criteria occurred in the 24 samples collected from the DNR fixed monitoring station near Dorchester during the 1996-97 period, thus suggesting full support of aquatic life uses. Additional monitoring is needed to determine the status of the aqutaic communities and habitats of this reach of river.
Assessment Key Dates
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 |