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i 1 <br /> MW-1 1 MW-14 <br /> LEGEND <br /> <0 50 <br /> ® ARCO SOIL VAPOR EXTRACTION WELL <br /> ' MW-13 SHALLOW GROUNDWATER MONITORING WELL <br /> (CONOCOPHILLIPS) <br /> SHALLOW GROUNDWATER MONITORING WELL <br /> ' (ARCO) � <br /> INTERMEDIATE GROUNDWATER MONITORING WELL <br /> M 1 (CONOCOPHILLIPS) <br /> INTERMEDIATE GROUNDWATER MONITORING WELL <br /> I ' (ARCO) <br /> MW-10 -r" DEEP GROUNDWATER MONITORING WELL <br /> <0 50 AI- 10 FOR W-2 (CONOCO/PHILLIPS) <br /> V-6well 76S TION 4�9�W-8 ARCO GROUNDWATER EXTRACTION WELL <br /> us-vsMW-1 � �1 I 0 00 MtBE ISOCONCENTRATION CONTOUR(Ng/L) <br /> 1200 <br /> 000 MtBE CONCENTRATION�tglL) BY EPA METHOD 8260 <br /> MW-1 MW-3 <br /> W-10 T e �1 MtBE METHYL TERTIARY BUTYL ETHER <br /> I W6 <br /> 9 + ,W-7 <br /> P91L MICROGRAMS PER LITER <br /> ' MW-4+ - --- ---- APPROXIMATE PROPERTY BOUNDARY <br /> TACO BELL 430 <br /> RESTAURANT NS NOT SAMPLED, INSUFFICIENT AMOUNT OF WATER <br /> 0� FOR SAMPLE COLLECTION <br /> EW-4 E 5 <br /> r5000 HARPIN G WAY <br /> 1W� sY <br /> DMW 2 MW <br /> MW-7 <br /> X050 E MW 1 <br /> I <br /> 380 <br /> '1 ! <br /> EW-7 I <br /> 1 7 <br /> MW-5 <br /> E-1 DM -1 5r0 <br /> M <br /> SV -1 0 O <br /> W-3 DRY ` 2 <br /> 21 ® MW11 m f <br /> SVE-2 1,70�i r <br /> ` � N <br /> PUMP ISLAND 0 <br /> l t AREAS I STAT 0 <br /> BUI ING ' <br /> (ni � <br /> M50 W-9 i im' �� ARCO STATION % <br /> FORME' 460 X4932 Y� 9 0 60 120 AND <br /> EXISTI _-�` REFERENCE THIS FIGURE IS BASED ON AN AERIAL SURVEY I <br /> USTs PROVIDED BY MORROW SURVEYING APPROXIMATE SCALE FEET <br /> FOR FORMER 76 STATION#4409 FIGURE <br /> 1502 NORTH EL DORADO STREET MtBE ISOCONCENTRATION <br /> ARCO STATION#4932 CONTOUR MAP /� I <br /> 16 HARDING WAY SHALLOW WATER BEARING ZONE 4 <br /> SE C 0 RSTOCKTON GALIFORNIA JANUARY 12& 13,2005 <br /> MW 8 3017 KILGORE ROAD SUITE 100 <br /> ' C0 50 i RANCHO CORDOVA CALIFORNIA JOB NUMBER DRAWN BY CHECKED BY APPROVED BY DATE <br /> PHONE (916)661 0400/861-0430(FAX) 77BP 54932 03 RT KF CH 01/21/05 <br /> Q 1CADD 7MRCO549321AUTOPOST20051TO-4932 MTBE SHALLOW 05 1Q dwg 91W2006 5 62 10 PM droy SACRAMENTO 077 <br />