ABSTRACT
T h e tw o m a in ca teg o rie s o f rem ed ia tio n o f g ro u n d w a te r are co n ta in m en t and re s to ra tio n o f g ro u n d w a te r q u ality [1,2]. T h is p ap e r fo cu ses o n co n ta in m en t u s in g s lu rry w a lls w ith a g ro u n d w a te r ex trac tio n sy stem th a t c rea tes an inw ard h y d rau lic g rad ien t. S im u la tio n m o d e ls h av e p ro v en to be u se fu l to o ls w h en d e s ig n in g co n ta in m en t sy stem s by p red ic tin g w h e th e r th e g ro u n d w a te r and c o n tam in an ts w ill b reach th e system . P o w erfu l flo w co d es can h an d le co m p lex b eh a v io r su ch as f lo w in frac tu red rock , h e te ro g en e ity , co m p lex b o u n d ary co n d itio n s an d rep re se n ta tio n o f v e rtica l s lu rry w alls n ea r-h o rizo n ta l co n fin in g lay ers as a re s is tan c e to flow . C o n tam in an t tran sp o rt co d es ran g e fro m sim p le a n a ly tica l m o d e ls u s in g co n s tan t p a ram ete rs to s im u la te ad v ec tio n , d isp e rs io n , a d so rp tio n , an d d ecay [3] to so p h is tica ted co d es th a t can in c lu d e m u ltip le m e th o d s w ith in each co d e [4]. C o u p led co d es h av e b een d ev e lo p ed th a t s im u lta n eo u s ly so lv e fo r flow , co n tam in an t tran sp o rt, an d g eo ch em ica l reac tio n s .
