sentences:  As of 2014, the Iowa Geological and Water Survey no longer appears in the DNR organization chart, as its eight scientists became part of the Iowa Institute of Hydraulic Research (IIHR) Hydroscience & Engineering at the University of Iowa.As of 2016, the most recent Iowa's impaired water list is from 2014.It contained 571 waterbodies with a total of 754 impairments.