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 2001 biocriteria data: Fish IBI= 37 (fair), BM-IBI= 70 (good).
Basis for Assessment
The assessment was based on data collected in 2001 as part of the DNR/UHL stream biocriteria project. The 2001 Fish IBI score was 37 (fair) and the BM-IBI score was 70 (good). The aquatic life use support was changed from fully supporting (=FS) to fully supporting/threatened (=FST), based on a comparison of the most recent F-IBI and BM-IBI scores with biological assessment criteria established specifically for the 2002 Section 305(b) report. The biological assessment criteria were determined from a statistical analysis of data collected at stream ecoregion reference sites from 1994-2001.
Assessment Key Dates
| 7/24/2001 | Biological Monitoring |
Methods
| 330 | Fish surveys |
| 380 | Quan. measurements of instream parms-- channel morphology-- floodplain-- 1-2 seasons-- by prof |
| 220 | Non-fixed station physical/chemical monitoring (conventional pollutant only) |
| 315 | Regional reference site approach |
| 320 | Benthic macroinvertebrate surveys |
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 | 1 |
| BioIntegrity | Fair |