The attached letter referral requests, through the Office of Site Remediation Enforcement, that the Department of Justice file a proof of claim incorporating the following claims for the seven Superfund Sites as well as taking appropriate steps to preserve Region III??s ability to require Solutia to perform response actions and corrective action at the two RCRA facilities. These claims include approximately $366,210.40 of unreimbursed past response costs incurred in connection with the Heizer Creek Site and an estimated $1.3 million of future response costs for this Site. At the Solutia, Inc./AES Monsanto Site, $1,429.09 of unreimbursed past response costs have been incurred in connection with this Site. At the Fike/Artel Chemical Superfund Site, potentially responsible parties have established a trust fund to finance performance of the remedial work at the Site. Solutia is a grantor of this trust and estimates that $2.6 million of future response costs represents its volumetric allocation in connection with the Site. At the Spectron Superfund Site, EPA has incurred approximately $2.2 million in past response costs and estimates that $32.4 million of future response costs will be incurred at the Spectron Site. EPA has incurred approximately $538,387 of unreimbursed past response costs and estimates $800,000 of future response costs to be incurred at the Maryland Sand, Gravel, and Stone Site. EPA has incurred $648,215.64 in unreimbursed response costs and estimates that