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4 <br /> N <br /> M <br /> O <br /> I 5 C005/<1 <br /> a PETRIG SEED 10 <.005/1 <br /> � O <br /> OFFICE <br /> 15 <.005/<1 Z <br /> I AND Q <br /> WAREHOUSE PLANTERI <br /> I N <br /> � W <br /> HISTORICAL I <br /> GROUNDWATER MW-2 O i <br /> GRADIENT <br /> I w—I 10 <.005/<1 <br /> 15 <.005/<1 <br /> 58-4 <br /> 5 �1 <br /> MW-3 <br /> 10 <.005/<1 e MW-1 6 <.005/<1.0/5.0 <br /> � TW-2 <br /> 15 <.005/<1 10 <.005/<1.0/5.4 <br /> B-3 <br /> APPROXIMATE AREA a 775 SQUARE FEET <br /> E110 <.005/<1 PLANTER <br /> 5 <.005/<1 9-12 •130/98 GRANT LINE ROAD <br /> 12 <.005/24 <br /> LE END <br /> Remaining Hydrocarbon Mass Calculation <br /> PROPERTY LINE <br /> ♦ MONITORING WELL <br /> Q SOIL BORING 7,750* euH 125 lbs { .45 k soil 1 46.5*• mgHC j 1 IbHC <br /> cu If Ib I kg soil 1 454,000 mgHC <br /> ABANDONED TEMPORARY MONITORING <br /> WELL <br /> APPROXWTE FORMER UST LOCATION - 47 POWililillilil *I. Ham`;-' <br /> - <br /> DEPTH (FEET bgs) —BENZ ENE/TPHg/LEAD (7 gallon •q�ioienl) <br /> 6 i/5/5 <br /> CONCENTRATIONS (ppm) IN SOIL <br /> APPROXIMATE EXTENT of HYDROCARBON • wr thickness of hydroearbon impacted sen• assumed to be 10 feel (5 — t9 11. bps) <br /> Q <br /> IMPACTED SOIL • : ava.eps concentration calculated -k+p onatl�tical results from 6-2 (96 rep nd <br /> /k4) a <br /> taw-2 (I mq/k 9} 95+1/2 a 16.5 n+y/k9 <br /> ETMGROUNDWATER 0 FEET So SUMMARY MAP <br /> =TECHNOLOGY SCALE <br /> CLIENT: FILE: PROJECT NO.: PM PE RG. <br /> CHEVRON U.S.A. PRODUCTS CO. 0188—SM2(1:50) 02070-0188 <br /> FORMER SIGNAL OIL S.S. NO. 221-5 REV. G <br /> LOCATION: 1 URE: <br /> 5431 WEST GRANT LINE ROAD DES. DET. DATE: <br /> BANTA, CALIFORNIA I JF j4 12-21--95 <br />