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I' <br /> L GEND <br /> I f MW-6D(CP <br /> II ® SOIL VAPOR EXTRACTION WELL <br /> SHALLOW GROUNDWATER MONITORING WELL LOCATION <br /> • MW-11 MW 13D DEEP GROUNDWATER MONITORING WELL <br /> (<0 50 <br /> GROUNDWATER EXTRACTION WELL <br /> I <br /> j (A) ARCO WELLS <br /> (CP) CONOCOPHILLIPS WELLS <br /> MW-11D 100 MtBE ISOCONCENTRATION CONTOUR Wg/L) <br /> (99) MtBE CONCENTRATION(ugIL) BY EPA METHOD 8260 <br /> rc}s�o IWBE METHYL TERTIARY BUTYL ETHER <br /> (<050 <br /> FOR <br /> -10 $ a +L� op <br /> iso <br /> W-2(C <br /> ALLY (<20) :P)\ <br /> r <br /> � # (NS) NOT SAMPLED <br /> MW-8D(CF 1 NOTE ARCO WELLS MW-6 THROUGH MW-8 SAMPLED <br /> (pP) ON OCTOBER 8,2003 CONOCOPHILUPS WELLS SAMPLED <br /> MW rnRM4I ON OCTOBER 8,2003 ARCO WELLS M -3,MW-5,MW-9 <br /> �v, r THROUGH MW-11,EW-1,AND EW-2 SAMPLED ON <br /> (461 14 1GfV# BD(CP W-3 CP OCTOBER 9,2003 ARCO WELLS MW-1,MW-2,AND <br /> Q W-10D(CP) I y ) 1' MW-4 SAMPLED ON OCTOBER 17,2003 <br /> MW-4(CP _90 C <br /> V � MW 7D C <br /> (31)' ORiv All <br /> Y <br /> i?talYtiW <br /> �. MW-6 DMW-3(A) I f <br /> (32,000) <br /> D 2(A) <br /> MW-7 (2000) MW-12D <br /> (<0 50) <br /> I i <br /> HARDING WAY <br /> )tv� � <br /> p tyE A) (25,060) DMW 1 (A) MW 5 <br /> MW-3 (NS) <br /> {c0 50) <br /> 30 ®'1 UMP MW-4 2IgW001j <br /> S(DRY) S (7,200) � u <br /> AC n <br /> g VING PAVING <br /> 3 � <br /> 0 <br /> N <br /> BUILOI <br /> W 1-50 <br /> MW-9 AC <br /> 050) PAVING 0 80 920 <br /> Z ! <br /> a Pis+ REFERENCE THIS FIGURE IS BASED ON AN AERIAL SURVEY <br /> O AC <br /> PAVINO�- MW-2 PROVIDED BY MORROW SURVEYING APPROXIMATE SCALE FEET <br /> F- <br /> �OTk1,A>�R&T �. DRAWN BY PR PREPARED BY PREPARED FOR <br /> 0 QST+1yG tt8 CHECKED KF ARCO STATION#4932 FIGURE 4 <br /> APPROVED CH FORM-R CONOCOPHILLIPS <br /> (c0 50) LO fjfl' DATE 1!27!04 PR TATION #4409 MtBE ISOCONCENTRATION CONTOUR MAP <br /> U JOB NO 77BP 54932 03 S E C Q R 16 HARDING WAY SHALLOW WATER BEARING ZONE <br /> a � 3017 KILGORE ROAD SUITE 100 1502 NORTH ELDORADO STREET OCTOBER 8,9,AND 17,2003 <br /> g CAD FILE MTBE SHALLOW RANCHO CORDOVA,CA 95670 STf OCKTON CALIFORNIA <br /> 1 <br />