CONSENT DECREE PROVIDES FOR: (1) THE DESIGN AND IMPLEMENTATION OF THE REMEDIAL ACTION SELECTED B Y REGION VII OF THE U.S. ENVIRONMENTAL PROTECTION AGENCY ( E PA ) IN A RECORD OF DECISION ISSUED ON APRIL 23, 1999, FOR T HE OPERABLE UNIT #1 ( OU1 ) PORTION OF THE SITE; AND (2) REI MBURSEMENT OF A SUBSTANTIAL PORTION OF EPA'S PAST RESPONSE C OSTS AND ALL OF EPA'S FUTURE RESPONSE COSTS INCURRED IN CONN ECTION WITH THE REMEDIAL DESIGN AND REMEDIAL ACTION ( RD/RA ) CONSENT DECREE. THE SETTLING PARTIES IN THIS CASE ARE TRW INC., AMERICAN SHIZUKI CORPORATION ( ASC ) AND THE ARNOLD E NGINEERING COMPANY ( ARNOLD ). TRW INC. OWNED OR OPERATED F ACILITIES IN OGALLALA, NEBRASKA FROM APPROXIMATELY 1960 THRO UGH 1989. THE EPA BELIEVES RELEASES OF HAZARDOUS SUBSTANCES TO THE GROUND WATER OCCURRED DURING THIS TIME PERIOD. ASC IS A CURRENT OWNER AND OPERATOR OF A FACILITY PREVIOUSLY OWN ED AND OPERATED BY TRW INC. AND AT WHICH RELEASES OF HAZARDO US SUBSTANCES OCCURRED. ARNOLD IS A CURRENT OWNER AND OPERA TOR OF A FACILITY AT WHICH RELEASES OF HAZARDOUS SUBSTANCES OCCURRED DURING THE PERIOD OF ARNOLD'S OWNERSHIP AND OPERATION.