The Department of Public Health and Environment will conduct a public hearing for consideration of the adoption of revisions to the Classifications and Numeric Standards for Arkansas River Basin, Regulation #32 (5 CCR 1002-32), to reconsider the water quality designations for Upper Arkansas segment 26 and Fountain Creek segments 2a, 2b, 4 and 6; to consider a potential temporary modification for selenium for Fountain Creek segment 6; and to correct an error in the chronic numeric standards for cadmium in segments 2b and 2c of the Upper Arkansas River. The hearing will be held July 15, 2008. http://www.sos.state.co.us/CCR/RegisterContents.do?Volume=31&Month=4&Year=2008.