THIS IS A PROPOSED ACTION AGAINST THE AMERICAN RADIO- CHEMICAL CORPORATION (ARC) ET. AL. UNDER SECTION 107 OF CERCLA TO RECOVER PAST COSTS OF A REMOVAL ACTION INCURRED IN RESPONDING TO THE RELEASE AND THREATENED RELEASE OF HAZARDOUS SUBSTANCES AT THE SITE. THIS CASE INVOLVES THE ARC SITE LOCATED IN SANFORE, FL. THE SITE IS LOCATED ON CARRIER AVENUE, BUILDING NO. 137, AT SANFORD INDUSTRIAL PARK IN SANFORD, FL. ARC LEASED THE BUILDING FROM THE CITY OF SANFORD IN 1969. IN 1971 PURSUANT TO A SPECIAL LEGISLATIVE ACT, THE SANFORD AIRPORT AUTHORITY TOOK OVER THE OPERATION AND MAINTENANCE OF THE SANFORD AIRPORT AUTHORITY AND INDUSTRIAL PARK. THE INDUSTRIAL PARK INCUDES THE SITE. ARC WAS ENGAGED IN THE SYNTHESES AND PREPARATION OF CARBON 14. ARC FUSED CARBON 14 TO EXPERIMEN- TAL DRUGS, PLANT FOODS OR MATERIALS SUPPLIED BY CUSTOMERS WHO WANTED TO USE A GEIGER COUNTER TO FOLLOW THE PATH OF DRUGS AND FOOD DURING TESTS ON ANIMALS AND IN THE SOIL. ARC USED OVER 1400 CHEMICAL SUBSTANCES, INCLUDING RADIOACTIVE CHEMICALS. IN LATE 1982, CONTAMINATION WAS FOUND AT THE SITE BY STATE OF FLORIDAY INSPECTIONS. SOON THEREAFTER, THE LABORATORY WAS ABANDONED AND NO ACTION WAS TAKEN TO PREVENT ON MITIGATE FURTHER CONTAMINATION FOR SEVERAL YEARS. ON DECEMBER 20, 1985, EPA VISITED AND SURVEYED THE SITE. THE SURVEY SHOWED THAT THERE WAS A RELEASE OR THREAT OF RELEASE OF HAZARDOUS SUBSTANCES AT THE