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i <br /> PORTER AVENUE <br /> cn - <br /> Mw- <br /> MW-2 5956 <br /> Former UST -f 5967 (ND)4 <br /> Location (ND) r <br /> 9 50 <br /> Ul <br /> C= -� <br /> Existing UST <br /> Location <br /> yy <br /> EW-2- VE <br /> S9 00 <br /> -T DRY f NM-- <br /> MW-5 1 ' <br /> 1 W N <br /> (9 1) D[SPOENS R D 58 50 Z <br /> � ISLAND i — W <br /> y <br /> T / MW-4 V <br /> MW- <br /> 5967 5805 — 50 <br /> (11) (1900) <br /> 1 <br /> Scalein Feet <br /> Parking Area ' <br /> MW-6 <br /> —5888 <br /> (lsoo) <br /> 4 EXPLANATION <br /> Ground Water Monitoring Well <br /> BUILDING Vapor Extraction Well <br /> Ground water elevation contour <br /> in feet referenced to Site Datum <br /> / Arrows Indicate approximate flow <br /> direction <br /> 5967 Ground water elevation in feet <br /> MW-7 (11) Benzene concentration in ppb <br /> 5769 ND=Not Detected <br /> (280) NM Not monitored <br /> Notes Monitoring performed on 9-Oct-97 <br /> Base map from Fugro map of 1-10-94 Approximate hydraulic gradient=0 009-0 01 <br /> PLATE /GROUND SITE PLAN/GRUND WATER CONTOUR/CHEMICAL ANALYTICAL MAP <br /> Shell Service Station <br /> 2 6131 Pacific Avenue 97374 <br /> Stockton, California <br /> Drawn By 7G Date 29-Oct-97 Approved By A Date tt <br />