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B-9/ <br /> I <br /> MW-4 B-12 VW-2 MW�2 <br /> Silt, some sand ` <br /> Silt. trace some clay �� i <br /> I <br /> -- -� —z — -- - � -- f � CPLANATION^ <br /> I <br /> 10 l�+lonitorin Well <br /> ~ Silt, trace some clay MWS 9 <br /> Sand. fine– to <br /> medium–grained ~ ~ �� Vapor—Extraction Well <br /> Silty sand, <br /> 1 � <br /> —--— --———— fine--grained — — 8--12 So11 Boring <br /> 20 1 0 � GGround--Water <br /> I--- ' <br /> ~ ~ Sandy silt to Surface (October 1991) <br /> silt, some sand, <br /> LTJ fine-grained <br /> LL.I <br /> 30 Slotted Casing <br /> z Silt, some clay � 1 0 r g <br /> 71 e� <br /> C Sof Sample <br /> LTJ f <br /> Q 40 <10 Concentration Of TPHg <br /> 71 Measured In Parts Per <br /> 0 Sand, fine– to Million <br /> 10 coarse–grained 10 <br /> 50 — — <br /> Silt, some sand. Silt. some sand, <br /> fine–grained fine–grained <br /> 60 Silt, trace clay Silt, trace clay � 10 <br /> i <br /> i <br /> 6 ,1 <br /> 0 10 20 <br /> APPROXIMATE <br /> Source Figure modified from map IN FEET <br /> SCALE <br /> FEET <br /> provided by RESNA Industries. VERTCAL EXAGGERATION = 2X <br /> ARCO PRODUCTS COMPANY FIGURE <br /> Emcon ARCO SERVICE STATION NO 548 <br /> 1612 HAmIlER LANE <br /> STOCKMK CALIFORNIA <br /> PROJECT N0. <br /> IL j GEOLOGIC CROSS—SECTION B—e' 0805-111 01 <br />