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�AIM 'J' Z FINN.ItE AMIATIdN PLAN Shell pit Company #'A 620 West Charter Way,Stockton,California Delta Project Na 40-68-586 Page 4 Note that monitoring wells MW-2, MW-5, MAA-7, MWA and MW-9 can be utilized for free product " recovery or ground water recovery. Both cannot be accomplished simultaneously because only one air line ( and fluid return line are present .porta Ig;ttlt-Opcasted product slcia ser pump has_been operating at the sato air compressor and product recovery vessel arc located in the remedial equipment area shown in Figure�3. The skimmer pump can be moved to different wells (only the wells that are equipped with a subsurface compressed air line and fluid return line)in Jrder to sl<.im frmfloatin gpetroleum product from the wells as necessary. The pump has been operating in MW-2 since its installation;however,it was recently moved to MW-7 because of changing product levels in the monitoring wells. u i- SAt; k�PPu�rts:t y�.��'�'Vebeeq_recovered.� - . 2.3 Well Inventor' A review of well records on file with the California Department of Water Resources indicatesl� � >< G1' , �vF1ih1.'!a J/kmfle rcl `,of tits 61U° _�municipal well,owned by the City of Stockton(City), is located near the intersection of Lincoln and Worth Streets,approxir.:etely 1,800 feet north(downgradieirt) Of the site. Well records show that a well located near the intersection of Center and Jefferson Streets, 13 approximately 2,300 feet northeast (downgradient)of the site, is owned by the California Water Service E Company. L* z.4 Uttiltles r The site lies within the City and is serviced by City water and sewer lines. A 24-inch sanitary sewer line and i w a Minch asbestos/cement(AC)water'line are present along the north side of Charter Way. A 6-inch cast L"y iron water line exists 19 feet south of the centerline along Charter Way. Electrical and natural gas lines are present along the northern edge of the property,immediately south of the sidewalk. i 2.5 R4 lanai Geolo and A'dro colo i s The site lies within the Great Valley geomorphic province. The geologic materials betteeth the region consist primarily of stream and delta plain deposits of the San Joaquin River and its tributaries(Norris and l Webb,I976). SuTficial geology area consists of fluvial sands,silm,and clays,and is considered to he several hundred feet thick (Jennings, et al., 1977). The San Joaquin County Flood Control and Water Conservation District Map for Spring I989 indicates that the unconfined and scmicontined ground water ''' aquifers in the vicinity of the site generally flow to the northeast.