Buttrick Creek IA 04-RAC-1149
mouth (S26 T83N R30W Greene Co.) to confluence of East Buttrick and West Buttrick creeks in SE 1/4 S25 T84N R30W Greene Co.
Assessment Comments
Assessment based on 1995 biocriteria data.
Basis for Assessment
Used a review of the field sheet from the September 1992 DNR stream use assessment and the August 1995 DNR biocriteria sampling to upgrade the assessment of support of the Class B(LR) aquatic life uses from FST to FS due to (1) presence of a very diverse fish commuity (species/families: 20/5 (1992), 26/5 (1995)), (2) presence of all the expected fish taxa (11 of 11 in biocriteria sampling) for streams in the Des Moines Lobe subecoregion (47b), (3) presence of fish taxa that indicate above average quality of water and aquatic habitat (e.g., several darter species, smallmouth bass, and northern hogsucker), and (4) lack of indications of signficant threats to the continued support of the Class B(LR) uses.
Assessment Key Dates
Methods
| 220 | Non-fixed station physical/chemical monitoring (conventional pollutant only) |
| 315 | Regional reference site approach |
| 320 | Benthic macroinvertebrate surveys |
| 330 | Fish surveys |
| 380 | Quan. measurements of instream parms-- channel morphology-- floodplain-- 1-2 seasons-- by prof |
Monitoring Levels
| Biological | 4 |
| Habitat | 4 |
| Physical Chemistry | 1 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 0 |
| BioIntegrity | N/A |