Dry Creek IA 02-CED-507
mouth (S1 T83N R7W Linn Co.) to confluence with unnamed tributary in S15 T84N R7W Linn Co.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Evaluated
Integrated Report
Category 0
Legacy ADBCode
IA 02-CED-0217_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Documentation
Assessment Comments
Stream use assessment in Linn County.
Basis for Assessment
Used a review of the field sheet from the May 1992 DNR stream use assessment at Cedar Rapids to continue to assess support of the Class B(LR) aquatic life uses as FST due to (1) presence of a moderately diverse fish community (11 species from 3 families) for streams in the Iowan Surface subecoregion (47c), (2) presence of a majority of the expected fish taxa (7 of 11) for streams in this subregion, and (3) indications on field sheet of good quality aquatic habitats. The only signficant threat to the physical characteristics of the stream was channel straightening; trash in stream also noted.
Monitoring and Methods
Assessment Key Dates
| 5/1/1992 | DNR Stream Use Assessment |
Methods
| 330 | Fish surveys |
| 375 | Visual observation-- may not quantify some parameters-- single season-- by prof. |
| 150 | Monitoring data more than 5 years old |
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 |