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In early 1990 the water table was located at 44 feet below the <br />' '"TrLlflf� In 1 , 4, LUd _} ,Ju� J',_1 11 i { t E _1L1L _U1J_LL1,1L , '1� It � <br /> feet and below Thal area i s cnntarr i n-1trr4 it w=i- <br /> capillary fringe at one time The distribution of contamination <br /> at the 40 foot level and below as caused by the movement of <br /> groundwater Although this zone is unsaturated at present it <br /> could became saturated again <br />' Three wells BM-Z, 3, and 6 had no contamination at all and their <br /> position defines the zero lane along the west and north sides of <br />' the site Well 4 as clean except for the capillary fringe and <br /> defines the zero limits on the southeast side Well 5 has a <br />' small amount of contamination at 15 feet but the fact that the <br /> zones below 15 feet are clean to the 40 foot level indicate the <br />' northern migration of fuel an the unsaturated zone was very <br /> limited Therefore, we assess the northernn limit of the <br /> contamination is gust beyond BM--5 <br /> The cross-section between BM-1 to BM-4 shows the beds dippinO. <br />' from BM--I to BM-4. Even though this is the case, migration <br /> above the capillary fringe has not occured over the 60 feet that <br /> seperate the wells This section shows the dap of the bed would <br /> not promote migration toward Grant Street Therefore, we assess <br />' the zero line to the east of the pit to be approximately the <br /> middle of the side wells on Grant Street. <br /> Although the dap of the beds as toward Charter Way from the old <br /> pit, the limited migration seen at wells 4 and 5 seem to <br />' indicate limited migration toward the south We do not believe <br /> the contamination has spread further than the north edge of the <br />' sidewalk on Charter Way (See Fig. 6) <br /> 9 <br />