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EX P LANATI O N <br /> MW-4 Block wall O Monitoring well <br /> 0(<50/<o 5/<2) Remediation <br /> r-fa <br /> equipment Vapor extraction well <br /> {1n2/n s69/<2)p r <br /> Air sparge well <br /> N ' <br /> �1 -2 r$vw-5 Sparge monitoring well <br /> rVW <br /> - _______ Destroyed well <br /> MW-7 STATION ----------- Vapor extraction/air <br /> CL <br /> sparge piping trench <br /> (<50/«5/<2) i Dispenser BUILDING S i p 9e P P g <br /> ZIDF lstands� i ~ Underground storage tank <br /> i _ <br /> O / <br /> Conductor casing <br /> ) --- 4bIVW-7 (184/119/42) Concentration of total petroleum <br /> VW_10 , _4vw-8 VW-11 46-VW-6 i hydrocarbons as gasoline (TPHG), <br /> o ------ -T----4 benzene, and MTBE in groundwater <br /> MW-< i (<5Q/503/fi 4�0 ' ; (ug/L), samples collected 6/4/99 <br /> - _4 VW-3 < Not detected at or above the <br /> ----------- IAS-2 AS--3 I Mw-2 <br /> AS-1M2MSi 3 ' I l I *(184/11 9/42) indicated laboratory detection limit <br /> Mw-10 IQf o lol i _ <br /> (168/2 63/<2) � J ` �� - � f-� J" -�VW_12 NOTE MTBE analyzed by <br /> Ms-1 } EPA Method 8260 <br /> Vw_9 VW-1 <br /> Sidewalk Driveway ©(1 8/6 77/3 7) <br /> i <br /> a <br /> s <br /> E i <br /> v t <br /> m <br /> M I <br /> I <br /> O <br /> A pl <br /> O <br /> � m 3 <br /> X , <br /> O O N - <br /> ;u m <br /> 0 <br /> HAMMER LANE <br /> I� a 0 30 60 <br /> x � <br /> SCALE 1N FEET <br /> r N <br /> r / <br /> M MW-8 <br /> U N <br /> a � Source Bose modified from drawing <br /> CL a provided 6y RESNA <br /> M U <br /> CD n mw-10p (5Mw--9 JUNE 1999 FIGURE 1 <br /> a (28s/<o s/<2} DWN KAB ARCO PRODUCTS CO7SUMMARY <br /> owN 7906 <br /> APP SERVICE STATION 2130, <br /> w REV STOCKTON, CALIFO <br /> H ENVIRONMENTAL SOLUTIONS PROJECT NO GROUNDWATER ANALYTIC <br /> A DIVISION OF EMCON 20805-114 010 SECOND QUARTER <br /> 0 <br /> r <br />