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I <br /> ti <br /> I <br /> k <br /> MW-4 I TPH 1,020 <br /> B 1 14'70 � <br /> AC PAVING (-26.56)1 MTBEL 2,290 <br /> LEGEND <br /> TPH ND<50 <br /> B ND<2 I <br /> MTBE ND<2 <br /> MW-6 GROUNDWATER MONITORING WELL LOCATION <br /> Mw- k <br /> TPH ND<50 J 0.002 FT/FT �. GROUNDWATER FLOW DIRECTION AND GRADIENT <br /> (--20.49)1 � <br /> MTB 40120 I <br /> GROUNDWATER ELEVATION CONTOURIN IN FEET RELATIVE <br /> TPH ND<50 - -(20.60)- <br /> B ND<2 TO MEAN SEA LEVEL. CONTOUR INTERVAL: 0.10 FOOT <br /> MW-6 MTB 8 370 (-20.60) GROUNDWATER ELEVATION !N FEET RELATIVE TO <br /> 1 (-20.56) ^� MEAN SEA LEVEL <br /> CVMW-5 <br /> • ARCO FACILITY <br /> (o TPHq1 ND<50 TOTAL PETROLEUM HYDROCARBONS AS GASOLINE (ug/L) <br /> EXISTING (-20.44) NJ. 5469 �O B ND<2 BENZENE (ug/L) <br /> MTBEI ND<2 METHYL TERT—BUTYL ETHER (ug/L) <br /> i <br /> UST COMPL �``' J t <br /> Na NOT DETESTED AT OR ABOVE STATED REPOR T iNG LIMIT <br /> 1 , , NOTE: ALL CONCENTRATION 1N MICROGRAMS PER LFTER (ug/L) <br /> f�Ci AC PAVING <br /> TPH(31 ND<50 <br /> MTBE 1 2 MW-2 <br /> 9 2 C <br /> —20.60) <br /> (—0 47 TPH ND<50 <br /> B I ND<2 <br /> MTBE ND<2 <br /> PUMP <br /> ISLANDS ' <br /> AC PAVING <br /> N <br /> 0 30' <br /> SCALE <br /> pR1VE�NAY FIGURE 4 <br /> GROUNDWATER SUMMARY MAP <br /> JUNE 23, 2000 <br /> ARCO FACILITY NO. 5469 <br /> 130 WILSON WAY <br /> STOCKTON, CA. <br /> PROJECT NO. DRAWN BY AB F02 GO <br /> RRAILEY K. MARTIN <br /> FILE NO. PREPARED Eff Delta <br /> DO-336-02 R. BAILEY <br /> �. Environmental <br /> DATE REV. REVIEWED BY �,. Consultants, Inc. <br /> 03 AUG 00 <br />