BY LETTER DATED AUGUST 14, 2007, EPA NOTIFIED CBS OPERATIONS INC. ( CBS 0 AND TCI PACIFIC COMMUNICATIONS ( TCI ) THAT THE PUBLIC COMMENT PERIOD FOR AN AGREEMENT FOR RECOVERY OF PAST RESPONSE COSTS ( AGREEMENT ) IN CONNECTION WITH OPERABLE UNIT 4 ( OU4 ) OF THE PALMERTON ZINCE PILE SUPERFUND SITE ( SITE ) HAD ENDED AND THAT THE EFFECTIVE DATE OF THE AGREEMENT WOULD BE AUGUST 15, 2007. UNDER THE TERMS OF THE AGREEMENT, CBS AND TCI AGREED TO PAY 100% OF EPA'S PAST COST FOR OU4 OF THE SITE, AS DEFINED IN THE AGREEMENT, IN THE AMOUNT OF $256,138.40. NOTICE OF THE AGREEMENT WAS PUBLISHED IN THE FEDERAL REGISTER ON JULY 9, 2007, AND THE PUBLIC COMMENT PERIOD ENDED ON AUGUST 8, 2007. NO COMMENTS WERE SUBMITTED AND THE AGREEMENT PROVIDES THAT THE EFFECTIVE DATE SHALL BE THE DATE THAT EPA ISSUES WRITTEN NOTICE THAT THE COMMENT PERIOD HAS ENDED AND ANY COMMENTS RECEIVED, IF ANY, DO NOT REQUIRE MODIFICATION OF OR EPA WITHDRAWAL FROM THE AGREEMENT. CBS AND TCI HAVE SIXTY (60) DAYS FROM THE EFFECTIVE DATE TO SUBMIT THEIR PAYMENT.