Odebolt Creek IA 06-LSR-1592
mouth (NE 1/4 S15 T87N R40W Ida Co.) to confluence with unnamed tributary in S24 T87N R39W Ida Co.
Assessment Comments
1997 bioassessments (dstr->upstr): (fish) 13 spp., 5 fams.; 10 spp., 4 fams.; Fish IBI= 39(fair), 35(fair); BM-IBI= 57(good), 57(good).
Basis for Assessment
Used results of the two August 1997 DNR watershed bioassessments at and 2.5 mi ESE of Ida Grove to assess support of the Class B(LR) aquatic life uses as FST due to (1) presence of a moderately diverse fish community for the Loess Hills and Rolling Prairie subecoregion, (2) presence of a majority of the expected fish taxa (5 of 7)* for streams in this subecoregion, and (3) lack of violations of Class B(LR) WQ criteria in the samples collected during the watershed assessments. (*Odebolt Creek is near the boundary of two subecoregions and the fish community contains species typical of each of these subecoregions.)
Assessment Key Dates
| 8/19/1997 | 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 | 2 |
| BioIntegrity | Fair |