International Business Machines (IBM) has owned and operated a facility in San Jose, California, since December 1956 using organic chemicals including TCA, acetone, xylene, and petroleum naphthas. The organics have been handled and stored onsite in drums, and above-ground and underground tanks. In addition, waste organic solvents were stored in concrete or steel underground tanks or drums; however, the concrete tanks were designed only to store organic wastes. In October 1980, while excavating tanks, IBM discovered soil contaminated with organics. Furthermore, investigations in November 1981 revealed extensive ground water contamination. The selected remedial action for the site includes onsite soil vapor extraction; onsite shallow and deep ground water, and offsite deep ground water pumping and treatment using air stripping, followed by onsite discharge of treated ground water to the aquifer and offsite discharge to surface water after the reuse capacity of the aquifer is exhausted.

"December 1988." "EPA/ROD-R09-89-029." PB90-108481. Additional title: Superfund record of decision (EPA Region 9): IBM (International Business Machines), San Jose, CA (first remedial action)--December 1988.