Little Cedar River IA 02-CED-575
from Chickasaw/Floyd county line ( W line S6 T95N R14W Chickasaw Co.) to confluence with unnamed tributary in W 1/2 S22 T96N R15W Floyd Co. (approximately 4 miles NE of Charles City)
Assessment Comments
Assessment is based on results of (1) IDNR stream use assessment in August 1995 and (2) IDNR/UHL biocriteria monitoring in October 1995.
Basis for Assessment
SUMMARY: The Class B(WW) aquatic life uses remain assessed (evaluated) as "fully supported" based on results of (1) an IDNR stream use assessment in August 1995 and (2) an IDNR/UHL biocriteria sampling in October 1995. Fish consumption uses remain "not assessed" due to the lack of recent fish contaminant monitoring in this stream reach.
EXPLANATION: Continue to use the assessment developed for the 1998, 2000, and 2002 reports that was based primarily on results of the October 1995 IDNR/UHL biocriteria assessment (Fish IBI= 85(excellent), BM-IBI= 79(very good)) and, secondarily, on the August 1995 IDNR stream use assessment. However, because these data are now considered too old (greater than five years) to accurately characterize current water quality conditions, the assessment category is changed from "monitored" (indicating an assessment with relatively high confidence) to "evaluated" (indicating an assessment with relatively low confidence). Fish consumption uses remain "not assessed" due to the lack of fish contaminant monitoring in this stream segment.
Assessment Key Dates
| 10/3/1995 | Biological Monitoring |
| 8/1/1995 | Biological Monitoring |
Methods
| 320 | Benthic macroinvertebrate surveys |
| 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 |
| 150 | Monitoring data more than 5 years old |
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 | Very Good |