Paint Creek IA 01-UIA-226
mouth (Allamakee Co.) to confluence with Little Paint Cr. in S32 T97N R3W Allamakee Co.
- Assessment Cycle
- 2016
- Release Status
- Final
- Data Collection Period
- Overall IR Category
- 2 - Some of the designated uses are met but there is insufficient data to determine if remaining designated uses are met.
- Trend
- Unknown
- Created
- 9/15/2016 8:45:46 AM
- Updated
- 10/5/2016 8:54:50 AM
Assessment Summary
The presumptive Class A1 (primary contact recreation) uses remain "not assessed" (IR 3a) due to the lack of information upon which to base an assessment. The Class B(WW1) aquatic life uses are assessed (monitored) as "fully supported" (IR 2a) based on results of IDNR/SHL biological sampling in 2010, 2011 and 2014. Fish consumption uses remain "not assessed" (IR 3a) due to the lack of fish contaminant monitoring in this stream segment.
Assessment Explanation
This Class B(WW1) aquatic life uses are assessed (monitored) as "fully supported" based on biological data collected in 2010, 2011 and 2014 as part of the IDNR/SHL stream biocriteria project. A series of biological metrics which reflect stream water quality and habitat integrity were calculated from the biological sampling data. The biological metrics are based on the numbers and types of benthic macroinvertebrate taxa and fish species collected in the stream sampling reach. The biological metrics were combined to make a fish community index of biotic integrity (FIBI) and a benthic macroinvertebrate index (BMIBI). The indexes rank the biological integrity of a stream sampling reach on a rising scale from 0 (minimum) to 100 (maximum). The 2010 FIBI score was 62 (good) and the BMIBI score was 64 (good). The 2011 FIBI score was 58 (good) and the BMIBI score was 69 (good). The 2014 FIBI score was 67 (good) and the BMIBI score was 67 (good). The aquatic life use support was assessed as fully supporting (=FS), based on a comparison of the FIBI and BMIBI scores with biological impairment criteria (BIC) established for previous Section 305(b) reports. The FIBI BIC for this ecoregion is 52 and the BMIBI BIC for this ecoregion is 61. This segment passed the FIBI BIC 3/3 times and passed the BMIBI BIC 3/3 times in the last five years. The biological impairment criteria were determined from a statistical analysis of biological data collected at stream ecoregion reference sites from 1994-2008. This assessment is considered "monitored" because there were two or more samples collected from this segment in multiple years from 2010-2014.
Fish consumption uses remain "not assessed" due to the lack of fish contaminant monitoring in this stream segment.
Assessment Key Dates
| 8/13/2010 | Biological Monitoring |
| 8/10/2011 | Biological Monitoring |
| 8/13/2014 | Biological Monitoring |
Methods
| 315 | Regional reference site approach |
| 320 | Benthic macroinvertebrate surveys |
| 330 | Fish surveys |
| 380 | Quantitative physical habitat assessment |