Plum Creek IA 04-EDM-982
mouth (S17 T96N R28W Kossuth Co.) to confluence with unnamed tributary in S16 T96N R27W Kossuth Co.
Assessment Comments
Assessment is based on results of IDNR/UHL biological (biocriteria) monitoring in 1997: FIBI = 31 (fair), BMIBI = 75 (good). Non-riffle FIBI BIC = 32, BMIBI BIC = 62.
Basis for Assessment
SUMMARY: The Class B(LR) aquatic life uses are assessed (evaluated) as "fully supported" based on results of biological monitoring conducted in 1997 as part of the IDNR/UHL biocriteria project. The data are now too old for the assessment to be considered monitored; therefore, the assessement is considered evaluated.
EXPLANATION: The aquatic life uses are assessed as "fully supported" based on results of the IDNR/UHL biological monitoring conducted on this stream segment in 1997. As stated in the assessment developed for the 2000 reporting cycle, the FIBI score was 31 (fair) and the BMIBI score was 75 (good). The aquatic life use support was assessed as fully supported (=FS), based on a comparison of the FIBI and BMIBI scores with biological impairment criteria (BIC) established from a statistical analysis of data collected at stream ecoregion reference sites from 1994-2004. The non-riffle FIBI BIC for this ecoregion is 32 and the BMIBI BIC for this ecoregion is 62.
Assessment Key Dates
| 8/12/1997 | Biological Monitoring |
| 8/12/1997 | One-time Chemical 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 | Good |