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EXPLANATION <br /> 1 t MW-4MONITORING WELL <br /> ,t 9=<0 5 + ABANDONED MONITORING WELL <br /> hitt TPHG=390 <br /> MTBE=f 100 NESTED SPARGE/VENT WELL <br /> SOIL BORING <br /> OOj�� t j PROPERTY BOUNDARY <br /> ♦♦ S1� O/ t <br /> �Q1CPL) T r i� t' B BENZENE IN Ag/L <br /> OCK WALL MW-3 t i TPHG TOTAL PETROLEUM HYDROCARBONS <br /> BL ASPHALT (-11 10) 1 0 ,t �/ AS GASOLINE IN gg/I <br /> PAVING 8=<0 5 1 p y MTBE METHYL-TERT-BUTYL-ETHER IN p.g/L <br /> TPHG=<50" DO DISSOLVED OXYGEN IN mg/L <br /> ^\ MTBE=O 63 1 <br /> 00=1 0 <br /> SPV t� 191, (-1066) POTENTIOMETRIC SURFACE ELEVATION <br /> -1 1 0— POTENTIOMETRIC SURFACE CONTOUR <br /> 1 7-ELEVEN E4 W-1A MW 4'(t 1p (CONTOUR INTERVAL = 0 2 FT) <br /> 1 FACILITY / �, <br /> MW-5A <br /> 14) ;% <br /> 1 NO 17334 SB-1 t S8=1 300 GROUNDWATER FLOW DIRECTION <br /> `t <br /> TPHG=23 000 •0 AND GRADIENT (i) <br /> �! n / tt MTBE=160 <br /> 1 D� Z / t 1 D0=1 1 <br /> SPV-2 Z <br /> MW--58 � 0 0 <br /> s^ / (-1094) a v <br /> / B=<0 5 " �, N <br /> / TPHG=<50 <br /> / MTBE=12 MW1i-y'`5� G <br /> 1 V / D0=1 0 <br /> / 1 <br /> ♦MW-2 74 0 30 60 <br /> a VqA <br /> 1 (-1066) <br /> 8=<05 APPROX SCALE IN FEET <br /> 1 TPHG=<5 CONCRETE tt <br /> 1DTBE 0 0 PAD S 7-ELEVEN, INC. <br /> FACILITY NO. 11334 <br /> t� 4501 NORTH PERSHING AVENUE <br /> % STOCKTON, CALIFORNIA <br /> 1 =- " 779950 <br /> DRAWN BY E SIMONIS DATE 12-23-02 <br /> DRAFTED BY CBD DATE 12-23-02 <br /> CK ��� �� 0�1CHECKED BY DATE <br /> LAS POTENTIOMETRIC SURFACE AND <br /> DISSOLVED HYDROCARBON <br /> CONCENTRATION MAP (10/15/02) <br /> Shaw- Shaw E&I, Inc. FIGURE 2 <br /> 17334GWC1002 <br /> N\Consulting\CAD\DWC\779950\17334gwc10G2dwg 01/07/2003 10 08 20 AM <br />