ABSTRACT
T h e rem ed ia tio n system d iscu ssed in th is p ap e r is lo ca ted a t an ac tiv e E P A S uperfu n d site. In th e early 1990's, a g ro u n d w a te r trea tm e n t system w as c o n s tru c te d to inhibit th e o ff-s ite m ig ra tio n o f trich lo ro e th y len e (T C E ) co n tam in ated g ro u n d w a te r. T h e g ro u n d w a te r trea tm e n t system (F ig u re 1) co n s is ts o f ex tra c tio n w ells w h ich d isch arg e a t a com bined ra te o f 60 g p m in to m u lti-s tag ed a ir d iffusion units. V ap o r/g a s con ta in in g th e T C E is co n veyed from th e air d iffusion u n its to a g ran u la r ac tiv a ted ca rb o n un it lo ca ted o u ts id e th e trea tm e n t building. T h e tre a te d g ro u n d w a te r is d isch arg ed to a s to rm sew er.
