IN THE EVENT A CONSENT DECREE IN NOT SIGNED BY THE POTENTIALLY RESPONSIBLE PARTIES, EPA WILL PURSUE ENFORCE- MENT OF AN ADMINISTRATIVE ORDER PURSUANT TO SECTION 106 OF THE COMPREHENSIVE ENVIRONMENTAL RESPONSE, COMPENSATION AND LIABILITY ACT OF 1980 (CERCLA), 42 U.S.C. 9606, AS AMENDED BY THE SUPERFUND AMENDMENTS AND REAUTHORIZATON ACT OF 1986 (SARA), PUB.L. 99-499, FOR THE PERFORMANCE OF THE RD/RA AT THE LEWISBURG DUMP SUPERFUND SITE IN LEWISBURG, TN. THE POTENTIALLY RESPONSIBLE PARTIES INCLUDE PERSONS, AS THAT TERM IS DEFINED IN SECTION 101(21) OF CERCLA, WHO OWNED THE SITE OR ARRANGED FOR THE DISPOSAL OF HAZARDOUS SUBSTANCES AT THE SITE.