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EX P LANATI O N <br /> Block wall i' p Monitoring well <br /> T- @)(<50/<G 5/<2*) Remediatson II <br /> cD b �- equipment Vapor extraction well <br /> o MW-3 <br /> {� o (<50/<05/<2*) , -� Air sparge well <br /> w m <br /> VW-5 , Sparge monitoring well <br /> CL ���. VW-2 <br /> Destroyed well <br /> O ; I STATION - -------- Vapor extraction/air <br /> m - MW-7 m ; i BUILDING sparge piping trench <br /> z ©(<51)/<0 5/<2*) t Dispenser , — r <br /> Islands _ J Underground storage tank <br /> o Conductor casing <br /> I ; -7 (79 1/4 255/4 12*) Concentration of total petroleum <br /> V�10 1 VW-8 VW-11 I hydrocarbons as gasoline (TPHG), <br /> r__-6 <br /> MW-"5 I benzene, and MTBE in groundwater <br /> ---- T---- (ug/L), samples collected 11/219/99 <br /> b I I E , <br /> (<50/0 585/2 68*)O ` <br /> l 1 t <br /> < Not detected at or above the <br /> _� , 3, <br /> `--- - A -21 indicated laboratory detection <br /> limitAS-3 I , 91/425/412*) <br /> AS - II I I IIMS-2 I I <br /> i <br /> (1Mw-i <br /> 29/<O 5/<2*) j �` JIo� Jjo4` 10\ SIJ___,+VW-12 * Analyzed by EPA Method $260 <br /> MS-1 � ---- <br /> MW-6 <br /> Sidewalk Driveway:�7 ©(53/0839/<2*) <br /> HAMMER LANE SCALE <br /> 0 30 60 FEET <br /> Source Base modified from drawing <br /> provided by RESNA <br /> MW-8 <br /> ARCO PRODUCTS COMPANY <br /> SERVICE STATION 2130 <br /> MW--1 O O X MW-9 <br /> (198/3 58/<2*) IT CORPORATION <br /> l FIGURE 1 <br /> GROUNDWATER ANALYTICAL SUMMARY <br /> FOURTH QUARTER 1999 <br /> 7906 NORTH ELDORADO <br /> STOCKTON, CALIFORNIA <br /> SANJO5E/CARD N\cad\DWG\PINACL\2130\2130chem dwg Thu 06/Jan/00 12 37pm kblock <br />