CIRCUITRON CORPORATION ('CIRCUITRON') OPERATED A MANUFACTURING FACILITY AT THE CIRCUITRON SITE (THE 'SITE') AND DISPOSED OF HAZARDOUS SUBSTANCES AT THE SITE. CIRCUITRON WAS EVENTUALLY ACQUIRED BY ADI ELECTRONICS, INC. ('ADI'). IN 1986, ADI, CIRCUITRON, AND OTHER CORPORATIONS OWNED BY ADI, FILED PETITIONS FOR PROTECTION UNDER CHAPTER 11 OF THE UNITED STATES BANKRUPTCY CODE. EPA HAS INCURRED COSTS IN TAKING RESPONSE ACTIONS AT THE SITE AND INTENDS TO INCUR A SUBSTANTIAL AMOUNT OF RESPONSE COSTS IN THE FUTURE. EPA, IN ORDER TO PROTECT ITS ABILITY TO RECOVER RESPONSE COSTS FROM TWO OF THE MAJOR POTENTIALLY RE- SPONSIBILE PARTIES ('PRPS'), FILED A PROOF OF CLAIM WITH THE BANKRUPTCY COURT ON NOVEMBER 30, 1987 AFTER A VERBAL REFERRAL TO THE U.S. DEPARTMENT OF JUSTICE ('DOJ'). THE REFERRAL CONFIRMS OUR PREVIOUS ORAL REFERRAL TO DOJ AND RECOMMENDS THAT A PROOF OF CLAIM BE FILED IN THE ADI CHAPTER 11 BANKRUPTCY PROCEEDING TO OBTAIN RECOVERY FROM THE BANKRUPTCY ESTATE OF COSTS INCURRED TO DATE BY EPA OF APPROXIMATELY $45,000. A COPY OF THE PROOF OF CLAIM, WHICH WAS FILED PURSUANT TO THE ORAL REFERRAL, IS ATTACHED AS AN EXHIBIT TO THE REFERRAL. THE PROOF OF CLAIM MADE REFERENCE TO, AND SEEKS RECOVERY OF, ALL ADDITIONAL COSTS THAT MAY BE INCURRED BY EPA IN THE FUTURE.