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s <br /> Mw-9 I <br /> (ND) <br /> t fir•�`� •l'' <br /> (Cardoza Property) {, OJ <br /> II J <br /> O <br /> I = <br /> MW-3 Proposed <br /> _ (ND) monitorin_ &Mw-10 well location I � <br /> I 0 <br /> BS17 \1 I <br /> 1000 <br /> 3000 I <br /> S1 2 BS3 B 4 BSS j <br /> NO 7 4500 2800 NO <br /> ------ ------ - - - <br /> -8 MW -------� <br /> MW-5S MW-6 9 MW-12ASW- -7,(350) MW-13 MW 11 <br /> (ND) (940) 1700 (3200) (NO) (NO) <br /> S6 S7 SS S9 S1 S11 <br /> B NO B 370 81600 19220 15 B NO ` <br /> Former spill area: soil covated <br /> ` J. Chevron <br /> and replaced - fill pipeline <br /> NO NO 1.0 ND <br /> PW I <br /> aw PW <br /> S12 S13 S14 S15 <br /> GRANT LINE ROAD <br /> EXPLANATION <br /> Approximate location of monitoring well <br /> V Approximate location of air sparging well <br /> 8 S1 Approximate location of boring —N- <br /> 15 Benzene concentration in micrograms per liter (µg/L). October 1995 <br /> (940) Benzene concentration in µq/G, July 1995: shown for references only, <br /> may or may not represent groundwater conditions in October 1995 <br /> NO Not detected above quantification limit (0.5 µg/G) 0 40 ft. <br /> —1.0— Estimated line.of equal benzene concentration <br /> NOTE. Plan adapted from Figure 2 of "Additional Subsurface Investigation' Approximate <br /> by Western Geologic Resources, Inc., September 1991 and city map Scale <br /> provided by the City of Tracy. cn.von\246z 27 01/a1/96 <br /> Reviewed by: PROPOSED MONITORING WELL LOCATION Project No. <br /> /T Corral Hollow and Grant Line Roads Site C2463 <br /> f�J Tracy, California <br /> =figure <br /> Aoproved ':)Y' GEOMATRIX CONSULT,A.MTS, INC. <br /> 40WgiXM and 1rviro( vi sciu+tisw <br />