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A <br /> 8-27/VW-18 A <br /> NORTHWEST B-22/VW-12 B-25/VW-15 SOUTHEAST i <br /> B-11/VW-3 B—g/ -4 <br /> B-10/VW-2- B-17/vw-8 -B-20/VW-17 <br /> B—7 FENCE <br /> B-20/VW-10 PATTERSON VACANT <br /> SITE PASS RD FIELD V-18 <br /> 00 00 <br /> DEPTH <br /> DEPTH bl63r 203\ (ft —BGS) <br /> (ft —BGS) � I <br /> 0 00179 �~ \ <br /> .� � / 1306 tae. � � Ooa3 � <br /> p0 <br /> 1456. 40 �L 00 r� y <br /> <0005 r / \ �7�— 333 4 20 I <br /> 20 592 10 `� EXP LANATI.O N <br /> \ � 40918 100 � t I <br /> 1 \ 700 l SILT AND CLAY <br /> <0 005 \ \ 74 0 81 / <br /> 1,196 1,488 ' 031 40 SAND AND SILTY SAND <br /> 40 � X09 � � �_ � I <br /> 0 26 opo 39 3 �} <0 005 1 <br /> <0 005 0 077 0 0284 <br /> A 581rO476 <br /> 3.9 � TPHG ISOCONCENTRATION LINE <br /> — — 100 (m9/k9) <br /> TD=52 5' � lp ` t0021 t10 100 401 60 GEOLOGIC CONTACT, DASHED WHERE <br /> 60 TD=61'TD-61' 1000 APPROXIMATE, QUERIED WHERE INFERRED <br /> �OOg t,640 � B-20/VW-10 — BORING/WELL DESIGNATION <br /> 0709 l 1,297 (DASHED WHERE PROPOSED) <br /> 1\ 1 <0 005 <br /> 80 TD=76 5' t6\ TD=80' 80 <br /> \ 520 / / <br /> TOTAL BTEX CONCENTRATION <br /> 00772 TD=88 5' 005 /� (mg/kg) <br /> TD=90 5 <br /> V 1OO PERFORATED INTERVAL <br /> 100 E 0 0136 <br /> R <br /> T 0 <br /> FILTER PACK INTERVAL <br /> C TD=110' TOTAL DEPTH OF BORING (FEET) <br /> 0 273 A TD='52 5' BELOW SURFACE GRADE <br /> TD=116' L 120 <br /> - 120 <br /> S <br /> C 20 <br /> 0 <br /> A <br /> L <br /> E <br /> FIGURE 4 <br /> o I 0 40 80 awN I ARCO PRODUCTS COMPANY <br /> 0 N N 40 APP ARCO SERVICE STATION NO 6 SS <br /> 1 REV 25775 SOUTH PATTERSON PASS <br /> o F HORIZONTAL SCALE IN FEET <br /> co LEWENVIRONMENTAL SOLUTIONS B PROJECT NO ! TRACY, CALIFORNIA <br /> cq coISION OF EMCON E 20805-152008 STEX IMPACTS ALONG CROSS SECTION A-A' <br /> T <br /> z <br />