North Raccoon River IA 04-RAC-1140
from confluence with Drainage Ditch 101 (S36 T91N R36W Buena Vista Co.) to confluence with unnamed tributary in S4 T92N R36W Buena Vista Co.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1996
Result Period
1992 - 1994
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-RAC-0050_3
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Documentation
Assessment Comments
Assessment is based on results of an October 1994 DNR stream use assessment.
Basis for Assessment
Used results of the October 1994 DNR stream use assessment near Rembrandt to assess support of the Class B(LR) aquatic life uses as PS due to (1) habitat score (19) worse than the overall score (22) for DNR stream use assessments, and (2) indications on field sheet of extensive channel alterations (straightening), little substrate diversity, and no pool and/or riffle development.
Monitoring and Methods
Assessment Key Dates
| 10/1/1994 | Biological Monitoring |
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 |