ON APRIL 17, 2009, REGION 5 EXECUTED AN ADMINISTRATIVE SETTLEMENT AGREEMENT AND ORDER ON CONSENT (AOC) FOR A REMOVAL ACTION AT THE PIQUA HOSPITAL SITE IN PIQUA, OHIO WITH THE RESPONDENTS, HOSPDELA LLC AND DR. ENRIQUE DE LA PIEDRA. THE AOC WAS ENTERED INTO AS A PROCEEDING UNDER SECTIONS 104, 106(A), 107 AND 122 OF COMPREHENSIVE ENVIRONMENTAL RESPONSE, COMPENSATION, AND LIABILITY ACT (CERCLA). THE PIQUA HOSPITAL SITE IS A FORMER HOSPITAL WHICH WAS BEING RENOVATED FOR OTHER USES. REGION 5 CONDUCTED A SITE ASSESSMENT ON MARCH 17 - 18, 2009 AND DOCUMENTED THE PRESENCE OF HAZARDOUS WASTES AT THE SITE, INCLUDING CORROSIVE-CONTAINING DRUMS (ACIDS AND CAUSTICS), ELEMENTAL MERCURY AND ASBESTOS CONTAINING MATERIALS. UNDER THE AOC, THE RESPONDENTS SHALL, AMONG OTHER THINGS, PROPERLY REMOVE THE ASBESTOS CONTAINING MATERIALS IN OUTDOOR AREAS, REMOVE ALL HAZARDOUS WASTE INCLUDING DRUMS, CONTAINERS AND MERCURY SOURCES AND STABILIZE ANY INDOOR AREAS CONTAMINATED WITH ASBESTOS CONTAINING MATERIALS.