The Environmental Protection Commission adopted amendments to Iowa Admin. Code r. 61, Water Quality Standards; and r. 62, Effluent and Pretreatment Standards: Other Effluent Limitations or Prohibitions. The changes establish numerical water quality criteria for chloride for the protection of aquatic life uses, establish numerical water quality criteria for sulfate for the protection of aquatic life uses, and update the effective date of references to the "Supporting Document for Iowa Water Quality Management Plans." http://www.legis.state.ia.us/aspx/ACODOCS/DOCS/10-07-2009.Bulletin.pdf pp. 1058-63.