Questions From July 2013 EMC Meeting Dr. Thomas Starr, Chairman, North Carolina Science Advisory Board (SAB) Was the recommended acceptable ambient level (AAL) based on new data or a change in methodology? Did the SAB consider deposition and ingestion of arsenic in developing its recommendation for the AAL? Is the SAB work peer reviewed? Lori Cherry, Division of Air Quality Will the EPA re-evaluation consider ingestion pathways through groundwater, surface water, and the like? 1 1

Questions From July 2013 EMC Meeting Kathy Stecker, Division of Water Resources Has DWR looked at arsenic in NC surface waters or fish? 2 2