THIS IS A COST RECOVERY ACTION UNDER CERCLA SEC 107 TO RECOVER $229,402.08 FROM SCI, ACCEM-TRON, INC., HANDY & HAR- MAN, APPLIED TECHNOLOGY, UNIVERSITY HOSPITAL, UNIROYAL INC., & HERCULES, INC. FOR CERCLA SEC 104 REMOVAL OF HAZARDOUS SUBSTANCES FROM THE POTTSTOWN ABANDONED TRAILER SITE. AL- THOUGH THERE IS A CONFUSING & COMPLEX WEB OF FACTS & PRPS, ALL THE SUBSTANCES CAN BE TRACED TO TWO OF THE DEFS, SCI & ALCHEM-TRON, & IN ALMOST EVERY INSTANCE, THE ORIGINAL GENER- ATOR OF THE SUBSTANCE IS KNOWN. MR. CHARLES COLBERT SERVED AS PRES OF SCI CHEMICALS INC., SCI EQUIPMENT & TECHNOLOGY INC. & SEVERAL OTHER COMPANIES & BUSINESS OPERATIONS AND HIS BROTHER, JACK COLBERT SERVED AS VICE-PRESIDENT. THEY OPERATED SCI & OTHER RELATED COMPANIES FOR THE SALE & SHIPMENT OF VARIOUS CHEMICALS IN INTERSTATE & FOREIGN COMMERCE AS WELL AS OPERATING A DISPOSAL FACILITY. WHILE ARRANGING FOR SALES OF WASTE CHEMICALS, SCI STORED CHEMICALS IN VARIOUS WAREHOUSES PRIMARILY IN NJ & PA. SOME WERE STORED IN LICENSED TSD FACILITIES WHILE OTHERS WERE MERELY PLACED IN EMPTY WAREHOUSES W/OUT REFERENCE TO COMPAT- ABILITY, IGNITABILITY, ETC. ACCORDING TO ROBERT LIST, CURRENT PRESIDENT OF BLUE CHIP TRANSPORTATION CO., IN 10/84, HE WAS A PARTNER OF THE TREN- TON INTERNATIONAL WAREHOUSE (TIW). ON OR ABOUT 12/12/83, CHARLES COLBERT ARRANGED TO STORE 15 TRAILORS AT TIW. ONLY 2 LOADS WERE DELIVERED TO TIW THAT EVEN