EPA ISSUED A SDWA 1431 ADMINISTRATIVE ORDER DECISION DOCUMENT ON JUNE 10, 2010 REQUIRING THAT THE US ARMY NATIONAL GUARD BUREAU OF BOURNE, MA ADDRESS THE CONTAMINATION AT THREE OPERABLE UNITS WITHIN THE MMR IMPACT AREA. THE OPERABLE UNITS ARE: WESTERN BOUNDARY, NORTHWEST CORNER, AND AREA 2. FOR ALL THREE OUSs, THE SELECTED REMEDY TO BE IMPLEMENTED CONSISTS OF MONITORED NATURAL RECOVERY WITH ESTABLISHMENT OF LAND USE CONTROLS.