CASE SUMMARY: THIS CIVIL ACTION IS BROUGHT AGAINST BOSTON & MAINE CORP FOR COST RECOVERY UNDER CERCLA SECT 107, 42 USC 9601. CASE INVOLVES EMERGENCY REMOVAL ACTION THAT WAS INITIATED ON AUGUST 1, 1984 BY EPA, TO COVER AN ASBESTOS LANDFILL WITH 30 INCHES OF GRAVEL, STONE, & TOPSOIL. THE SITE IS LOCATED AT IRON HORSE PARK, AN INDUSTRIAL PARK COMPLEX OF APPROXIMATELY 1280 ACRES IN NORTH BILLERICA, MASS, 30 MI NW OF BOSTON. THE LANDFILL OCCUPIES A 15-ACRE SECTION OF THE PARK. MUCH OF THE PARK IS DOMINATED BY BOSTON & MAINE CORPORATION'S (B&M) RAILROAD TRACKS, RAILYARD, OFFICES, & REPAIR FACILI- TIES. JOHNS-MANVILLE (J-M) LEASED THE LANDFILL FROM B&M FROM 1943 THROUGH NOVEMBER 1974, DURING WHICH TIME J-M DIS- POSED ASBESTOS DUST, OTHER ASBESTOS MILL WASTES & ASBESTOS SLUDGE DREDGED FROM LAGOONS ON J-M'S PROPERTY. THE QUANTITY OF ASBESTOS WASTES IS UNKNOWN. IN 1976, THE MASS BAY TRANS- PORTATION AUTHORITY (MBTA) PURCHASED APPROXIMATELY 3 ACRES ON THE WESTERN EDGE OF THE LANDFILL. ON 5/2/74, MASS DIV OF ENVIRONMENTAL HEALTH ISSUED J-M NOTICE CITING 2 VIOL'S OF THE REGS FOR DISPOSAL OF SOLID WASTES BY SANITARY LANDFILL, SECT 15A, CHAPTER III, MASS GEN LAW. ON 9/29/75, J-M NOTIFIED THE COMMONWEALTH THAT COST OF COMPLIANCE W/REGS MADE CONTINUED OPERATION ECONOMICALLY IN- FEASIBLE. J-M RETAINED CONTRACTOR SERVICES FOR REMOVAL & DISPOSAL OF SOLID WSTS, & DUMP'G OPE