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7 <br /> {.. B-9/ 6-11/ B-7/ <br /> B <br /> MW-4 8-12 VW-2 MW-2 <br /> ° g ' l <br /> � 2 <br /> Silt, trace some clay '_1 Silt, some sand <br /> -- -- _z_ - - � � ~ � EXPLANATION <br /> 10 ` � _ <br /> Silt, trace some clay MW- Monitoring Well <br /> Sand, fine— to Z <br /> medium—grained ? 8--11 1 <br /> VW–.,: Vapor–Extraction Well <br /> Silty sand, <br /> - - - --- - -- - - fine—graved � �- - - - � � _ <br /> 20 c1 0 ` � — 8-12 Soil Boring <br /> <1 0 <br /> Ground–Water <br /> Sandy silt to Surface (October 1991) <br /> W <br /> silt, some sand, <br /> W fine—grained <br /> 30 Silt. some clay Slotted Casing <br /> z X10 <br /> 71 ® Soil Sample <br /> w <� <br /> Ld 40 Concentration Of TPHg <br /> <1.0 — 71 Measured In Parts Per <br /> Million <br /> <10 Sand. fine— to <br /> <1 0 coarse—grained 11 <110 <br /> 50 — - - -- – ---- -?--- -- -�--- - z«- f — Z <br /> Silt, some sand. Silt, some sand, <br /> fine—grained fine--grained <br /> 60 Silt, trace clay Silt, trace clay 10 <br /> fi5 <br /> 5 <br /> 0 10 20 <br /> APPROXIMATE SCALE <br /> Source Figure modified from map IN FEET <br /> provided by RESNA Industnes V RTICAL EXAGGERATION 2X <br /> ARCO PRODUCTS COMPANY FIGURE <br /> r Emcon ARCO SERVId[ STATION NO 548 <br /> 1612 4AMMER LANE 4 <br /> STOCKY N, CALIFORNIA <br /> [PROJECT NO <br /> GEOLOGIC C OSS—SECTION 8—B' 0805-111 01 <br />