Rock Creek IA 01-MAQ-4
from unnamed tributary (S23T81NR5E Clinton Co.) to headwaters in NE 1/4 S11 T81N R5E Clinton Co.
Assessment Comments
Assessment is based on results of ambient water quality monitoring conducted by IDNR & UHL in support of TMDL development.
Basis for Assessment
SUMMARY: The assessment developed for the 2002 reporting cycle remains valid for the 2004 reporting cycle; no additional data have been generated for this assessment segment: The general uses of this segment of Rock Creek were assessed as "fully supported." Data used for this assessment were generated as part of IDNR/UHL monitoring conducted in support of the TMDL for lower Rock Creek.
EXPLANATION: Results of monitoring at the IDNR/UHL station at Highway 30 show no violations of Class B(LR) water quality criteria for dissolved oxygen, pH, or ammonia-nitrogen in the nine samples collected from March to November 2001. These results suggest water quality adequate to fully support the general aquatic life uses of this stream segment.
Assessment Key Dates
| 11/12/2001 | Fixed Monitoring End Date |
| 3/21/2001 | Fixed Monitoring Start Date |
Methods
| 240 | Non-fixed station physical/chemical (conventional + toxicants) |
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 |