The Department of Environmental Quality proposed to amend Idaho Admin. Code r. 58.01.08, Idaho Rules for Public Drinking Water Systems. Changes would add a new section for membrane filtration, add and revise definitions, and clarify general requirements for pilot studies. There will be public hearings October 25, November 8, and December 1, 2011, and the deadline for written comment is November 15. See http://adm.idaho.gov/adminrules/bulletin/bul/11bul/11oct.pdf (pp. 746-47).