10/5/99: THIS IS A COST RECOVERY ACTION FOR $5.7 MILLION HAZARDOUS SUBSTANCES, TRICHLOROETHYLENE (TCE) AND 1,1,1 TRICHLOROETHANE (TCA) WERE USED AS SOLVENTS IN A VAPOR DEGREASER AT A MANUFACTURING FACILITY LOCATED AT THE COLORADO AVENUE SUBSITE )(108 S. COLORADO AVENUE, HASTINGS, NE) BETWEEN 1963 AND 1971. THE SPENT SOLVENT THAT WAS DRAINED FROM THE DEGREASER WAS INTENTIONALLY DISCHARGED INTO THE SANITARY SEWER AT TIMES AND THE STORM SEWER AT OTHER TIMES. THE SPENT SOLVENT EXFILTRATED FROM BOTH SEWER LINES, MIGRATED THROUGH THE SOIL AND INTO THE GROUNDWATER, CREATING A PLUME OF CONTAMINATION THAT IS APPROXIMATELY ONE MILE LONG. THE PAST OWNER/OPERATOR, DRAVO CORP., OWNED THE FACILITY BETWEEN 1975-1982, ERIC INC. OWNED AND OPERATED THE SUBSITE FOR 18 MONTHS (MAY 1982-DEC 1983), AND THE CURRE NT OWNER/OPERATOR, DRESCO CORP., 1983 TO THE PRESENT.