Coon Creek IA 01-UIA-265
mouth (NE 1/4 S3 T99N R7W Winneshiek Co.) to road crossing in S13 T98N R7W Winneshiek Co.
The presumptive Class A1 and the Class A2 uses both were assessed as “not supported” due to levels of indicator bacteria (E. coli) that exceed state water quality criteria. The Class BCW1 use was assessed as “fully supported” based on the trout reproduction in Iowa streams summary prepared by the DNR Fisheries Bureau. All other designated uses were "not assessed."
Data Sources: Data Source Data Source ID Data Type Data Age Site ID Site Name Site Description NEIARCD 19 WQ CY 2012-2014 191910012 Coon Creek Site 19 Presumptive Class A1 -
Indicator Bacteria: Site ID Data Source ID # Samples / # Years 2012 Geometric Mean 2013 Geometric Mean 2014 Geometric Mean Annual Geometric Mean Violation # Violations % Violations Significantly >10% Violations Assessment Type Support Level 191910012 19 21 / 3 932.3 866.3 815.9 Yes 16 76% Yes Evaluated Not Site ID Data Source ID # Samples / # Years 2012 Geometric Mean 2013 Geometric Mean 2014 Geometric Mean Annual Geometric Mean Violation # Violations % Violations Significantly >10% Violations Assessment Type Support Level 191910012 19 21 / 3 932.3 866.3 815.9 Yes 4 24% Yes Evaluated Not
Aquatic Life Use - Trout Natural Reproduction
Based on the latest trout reproduction in Iowa streams summary prepared by the DNR Fisheries Bureau, the aquatic life use was assessed as "fully supported." According to the summary, a portion, or all, of this assessment unit was placed in Category I: streams that exhibit consistent natural reproduction and maintain a wild population of one or more trout species without any stocking.
Class A2 - Indicator Bacteria:
Class HH - No Data