New toxicity data have become available since the EPA national criteria were published in 1988. IDNR has been working with EPA and the Chloride Technical Advisory Committee to determine the most appropriate recommendation in regard to setting a Chloride standard in Iowa.

Technical Advisory Committee for Chloride:

• Roster (*.pdf file)
• November 26, 2007 Meeting Agenda, (*.pdf file)
  • November 26, 2007 Meeting Notes, (*.pdf file)
  • Chloride Recalculation Presentation, (*.pdf file)
  • Chloride Recalculation Summary, (*.pdf file)
• December 14, 2007 Meeting Agenda

Issue Papers:

• Chloride Issue Paper (*.pdf file)