1. SECTION 106(A) OF THE COMPREHENSIVE ENVIRONMENTAL RE- SPONSE, COMPENSATION AND LIABILITY ACT, AS AMENDED , 42 U.S.C. SECTION 9606(A) ( CERCLA ). 2. ROCKWOOL INDUSTRIES SITE TAYLORS VALLEY ROAD BELTON, BELL COUNTY, TEXAS 76513 3. THE ROCKWOOL SITE CONSISTS OF APPROXIMATELY ONE HUNDRED ACRES OF LAND IN BELTON, TEXAS. CUREENTLY INACTIVE, THE ROCKWOOL FACLLITY OPERATED AS A MINERAL WOOL INSULATION MANUFACTURING PLANT FROM MID-1950 UNTIL FEB. 1987. REGION 6 HAS CONDUCTED A REMEDIAL PRELIMINARY ASSESSMENT AND A SITE INVESTIGATION. THE SITE WAS PROPOSED FOR LISTING ON THE NATIONAL PRIORITIES LIST (NPL) ON MAR. 6, 1998. KNOWN SOURCES OF CONTAMINATION INCLUDE TWO PILES OF CONTAMIN- ATED SLAG AND SOILS; SUBSTANCES OF CONCERN ARE MAINLY METALS SUCH AS ARSENIC, ANTIMONY, AND LEAD. CTMC, A TEXAS CORPORATION FORMED ON SEPT. 2, 1997, PURCHASED APPROXI- MATELY 83 ACRES OF THE 100-ACRE ROCKWOOL SITE AT A TAX FORFEITURE AUCTION LATER IN SPET. 1997. PRIOR TO THE PUR- CHASE, THE REGION HAD NOTIFIED MR. FRITH THAT THE SITE WAS TO BE PROPOSED TO THE NPL, AND THAT HE WOULD BE CON- SIDERED A POTENTIALLY RESPONSIBLE PARTY IF HE PURCHASED THE SITE, AND THAT HE SHOULD NOT CONDUCT ANY SITE ACTIVI- TIES WITHOUT OBTAINING APPROVAL FROM THE REGION. THERE IS SOME EVIDENCE, DISCOVERED AFTER I