Crane Creek IA 01-WPS-406

Assessment Comments

Assessment is based on results of a November 1994 DNR stream use assessment.

Basis for Assessment

[Note:  For the 2002 report, the previous waterbody segment (IA 01-WPS-0180-0), from the mouth of Crane Creek to an unnamed tributary in Bremer County, was split into three subsegments:  (1) mouth to to confluence with unnamed tributary in NW 1/4, S24, T90N, R12W, Black Hawk Co.  (IA 01-WPS-0180-1), (2) unnamed tributary in Black Hawk Co.  to to confluence with unnamed tributary in NE 1/4, S16, T91N, R12W, Bremer Co.  (IA 01-WPS-0180-2), and (3) unnamed tributary in Bremer Co.  to confluence with unnamed tributary in S17, T92N, R12W, Bremer Co.  (IA 01-WPS-0180-3).   For assessments on the original waterbody segment (IA 01-WPS-0180-0), see the assessment information for IA 01-WPS-0180_1.]      

SUMMARY:  The Class B(LR) aquatic life uses remain assessed as "fully supported / threatened."  The assessment category, however, is changed from "monitored" to "evaluated."  EXPLANATION:  Continue to use the assessment developed for the 1998 report (see above) that was based on results of the 1994 DNR stream use assessment.   However, because these data are now considered too old 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).