IN 1986, RESPONDENT SCRAPED STAINED SOIL FROM ABOUT A 7-ACRE AREA ON THE FACILITY WHERE, MANY YEARS EARLIER, RAILROAD TIES WERE TREATED WITH CREOSOTE AND STACKED TO DRIP DRY. THE SCRAPED SOIL WAS PLACED IN A SOIL PILE ON THE EAST END OF THE UPPER TERRACE. RESPONDENT THEN TRUCKED APPROXIMATELY 200 TRUCKLOADS(2&1/2 TONS EACH) TO THE CHAFFEE COUNTY SUB- TITLE D LANDFILL. CONFIRMED SITE CONTAMINANTS INCLUDE CREOSOTE, PENTACHLORO- PHENOL(PCP), MULTIPLE DIOXIN/FIRIN ISOMERS, LEAD, ZINC, COP- PER AND ARSENIC.