Johnson Creek IA 02-CED-559
mouth (S20 T90N R16W Butler Co.) to Butler county road T-25 at W line S5 T90N R17W (reach designated as B(w) prior to 1990).
Assessment Comments
Stream use assessment in Butler County.
Basis for Assessment
[Assessment information applies to Johnson Creek as a whole. Johnson Creek was separated into two segments after the 1998 305(b) report.] "General Use" waterbody. Used a review of the field sheet from the July 1992 DNR stream use assessment to assess support of the "general" aquatic life uses as FST due to (1) presence of a slight majority of the expected fish taxa (6 of 11) for streams in the Iowan Surface subecoregion (47c) and (2) due to results of a 1981 Iowa State University fish survey (JRO-39-1981) that showed 15 species from 3 families and presence of 9 of the 11 expected fish taxa for streams in this subregion. Additional monitoring is needed to update this assessment, to better determine the status of the aquatic communities and habitats, and to review the use designation for this stream.
Assessment Key Dates
| 7/1/1992 | 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 |