SITE WAS A FORMER REMOVAL SITE THAT WAS CONTAMINATED WITH PCBS. THE RESPONDENT AGREED TO PERFORM ADD'L REMEDIAL WORK TO CLEAN UP THE SITE TO RESIDENTIAL STANDARDS, PERFORM A CONTROLLED DEMOTIONS, AND CONVERT THE SITE TO RESIDENTIAL HOUSING. ASSIGNMENT OF PPA AT THE O'BRIEN SITE FROM SERENA, INC TO S&S DEVELOPMENT CO., INC., THE ADDITIONAL SETTLING DEFENDANT