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I <br /> LE END <br /> zo) SOIL VAPOR EXTRACTION WELL <br /> SHALLOW GROUNDWATER MONITORING WELL <br /> (<05-11 (( ) DEEP GROUNDWATER MONITORING WELL <br /> I <br /> �-~ I GROUNDWATER EXTRACTION WELL <br /> 4{A) ARCO WELLS <br /> I (CP) CONOCOPHILLIPS WELLS <br /> 0 50 <br /> (�:�'� �. <br /> i0Q <br /> U MtBE ISOCONCENTRATION CONTOUR(erg/L) <br /> f ` �99) MtBE CONCENTRATION(lig/L)BY EPA METHOD 8260 <br /> MBE METHYL TERTIARY BUTYL ETHER <br /> (<o so ALLEY <br /> 1l<z oCP) ` INS) NOT SAMPLED <br /> OTE ARCO WELLS MW-6 THROUGH MW 8 SAMPLED <br /> p)� ON OCTOBER 8,2003 CONOCOPHILLIPS WELLS SAMPLED <br /> MVy_1 (C <br /> \ ON OCTOBER 8,2003 ARCO WELLS MW-3, MW-5,MW-9 <br /> Z:1 THROUGH MW-11,EW-1,AND EW 2 SAMPLED ON <br /> C, 180 4; ;1V1�' ICP` -3(CP) f OCTOBER 9,2003 ARCO WELLS MW-1 MW-2,AND <br /> A00 !1 Ir;rCE' r MW-4 SAMPLED ON OCTOBER 17,2003 <br /> s + <br /> MW-4(CPaIVd 9G <br /> i <br /> x <br /> 6W 7(a(CP, <br /> MW-6(A) (A) <br /> (21,000) EW-4(A) <br /> EW-3(A) <br /> (..�--�—" <br /> (39) <br /> ) Rtwo <br /> {<0 5 (€ i� <br /> [ (38,000) 1��550) ������ I <br /> EW-7(A) <br /> HARD (110 S1t1 AL <br /> t <br /> o C?mw <br /> $ o- (A) p MW-4*(A) UII DING <br /> PUMP (33) <br /> SVE-1 S(-ANDAC +V11* A <br /> Lu m (DRY) PAVING {430) <br /> PAVING <br /> N � <br /> O <br /> DUIL[AN(a <br /> W-9 VA) <br /> / o { I <br /> � � A(i t <br /> � <br /> p <050) m RA ANG a 60 120 <br /> mI AC MW-2*(A) / l REFERENCE THIS FIGURE IS BASED ON AN AERIAL SURVEY <br /> s L rA ING (430) / PROVIDED BY MORROW SURVEYING APPROXIMATE SCALE FEET <br /> _- <br /> --i Cl <br /> Cti <br /> DRAWN 8Y pr{ PREPARED BY PREPARED FOR <br /> tS1Nra � CHECKED KF ARCO STATION #4932 FIGURE 4 <br /> $ MW-8(A) / APPROVED CH FORMER CONOCOPHILLIPS <br /> (<050) DATE 4116104 PR STATION #4409 MtBE ISOCONCENTRATION CONTOUR MAP <br /> JOB NO 77BP 54932 03 S E C Q R 16 HARDING WAY SHALLOW WATER BEARING ZONE <br /> N CAD FILE MTBE SHALLOW 3017 KILGORE ROAD SUITE 100 1502 NORTH EL DORADO STREET 1ST QUARTER 2004 <br /> RANCHO CORDOVA CA 95670 STOCKTON,CALIFORNIA <br />