Muchakinock Creek IA 04-LDM-1049
from confluence with Little Muchakinock Cr. (S34 T75N R16W Mahaska Co.) to confluence with unnamed tributary in NW 1/4 SW 1/4 S27 T76N R17W Mahaska Co.
Assessment Comments
Three stream use assessments in 1990.
Basis for Assessment
Continue to use the assessment of support of the Class B(LR) aquatic life uses developed for the 1996 report (=PS). Follow-up monitoring is needed to determine the status of the aquatic communities and habitats and to determine the degree to which the Class B(LR) uses may be impaired. Because data upon which this assessment is based are more than 5 years old, the 305(b) assessment category was changed from "monitored" to "evlauted." This stream was identified in 1992 by DNR Fisheries Biologists as having major water quality impacts due to coal mine runoff (see page 3-106 of the 1996 Section 305(b) report). Comments on field sheet regarding "very few fish for the depth and type of habitat sampled" suggest the potential for WQ impacts related to low pH.
Assessment Key Dates
Methods
| 330 | Fish surveys |
| 375 | Visual observation-- may not quantify some parameters-- single season-- by prof. |
Monitoring Levels
| Biological | 3 |
| Habitat | 3 |
| Physical Chemistry | 0 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 0 |
| BioIntegrity | N/A |