Paint Creek IA 01-UIA-226
mouth (Allamakee Co.) to confluence with Little Paint Cr. in S32 T97N R3W Allamakee Co.
- Assessment Cycle
- 2018
- 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
- 5/10/2019 1:21:42 PM
- Updated
- 5/10/2019 1:24:40 PM
Assessment Summary
The Class B(WW1) aquatic life uses are assessed (evaluated) as "fully supported" based on results of DNR/SHL biological sampling in 2011 and 2014.
Assessment Explanation
This Class B(WW1) aquatic life uses are assessed (monitored) as "fully supported" based on biological data collected in 2011 and 2014 as part of the DNR/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 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 2/2 times and passed the BMIBI BIC 2/2 times in the last six 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 now considered "evaluated" because there were not two or more samples collected from this segment in multiple years from 2012-2016.
The presumptive Class A1 (primary contact recreation) uses and the fish consumption uses (Class HH) remain "not assessed" due to the lack of information upon which to base an assessment.
Assessment Key Dates
8/10/2011 | Biological Monitoring |
8/13/2014 | Biological Monitoring |
Methods
150 | Monitoring data more than 5 years old |
315 | Regional reference site approach |
320 | Benthic macroinvertebrate surveys |
330 | Fish surveys |
380 | Quantitative physical habitat assessment |