North Fork Black Hawk Creek IA 02-CED-551
mouth (T87N R15W Sec1 Grundy County) to confluence with South Fork Black Hawk Creek(T88N R15W Sec8 Grundy County)
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 02-CED-0383_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Documentation
Assessment Comments
1992 DNR stream use assessment in Grundy county.
Basis for Assessment
Changed assessment of support of B(LR) aquatic life uses developed for the 1994 report (PS) to FST due to historical information from ISU fish surveys in early 1980s suggesting considerably better habitat and much more diverse fish community. Stream is certainly threatened by agricultural nonpoint sources, but historical information suggests better than average habitat and aquatic community.
Monitoring and Methods
Assessment Key Dates
| 6/1/1992 | DNR Stream Use Assessment |
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 |