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6 <br /> ♦ EXPLANATION <br /> MW-7 �l� <br /> T MONITOR WELL <br /> O SOIL BORING LOCATION <br /> I <br /> T3-S-15' SAMPLE LOCATION WITH ID AND DEPTH <br /> Q OEOPROBE SOIL BORING LOCATION <br /> NORTHGATE DRIVE — - — PROPERTY BOUNDARY <br /> ------- CANOPY BOUNDARY <br /> MW-6 B BENZENE INµg/L <br /> (13.80) TPHG TOTAL PETROLEUM HYDROCARBONS <br /> B-0.61 AS GASOLINE INµg/I <br /> - -- -- -- -- - - -- - TPHG=200 MTBE METHYL-TERT-BUTYL-ETHER INµg/L <br /> MTBE-PLANTER MW-5A \ 00=0.61 DO DISSOLVED OXYGEN IN mg/L <br /> T11 \ <br /> MW-5T POTENTIOMETRIC SURFACE ELEVATION <br /> (13.57) \ \ — 13.9 — POTENTIOMETRIC SURFACE CONTOUR <br /> B-' <br /> 7 -550 \\ (CONTOUR INTERVAL = :1 FT) <br /> DMTO o.a 0 �'^\ «. (GRADIENT = 0.001 FT/FT) <br /> /\ <br /> NE <br /> GROUNDWATER <br /> PUMP I ^ -- -- (WITHDIRECTIONLARROW) ` <br /> ISLAND <br /> < I <br /> \ \\ <br /> 0 ` \ (]G -2 I MW-1A <br /> MWg4) <br /> 8-230TPHG- <br /> ` ' 'A TPHG=7200 <br /> MW-2 \n /� \ I MTBE=1100 <br /> ) $B-T <br /> 8-200 / \ DO-0.6 <br /> 8=2000 ` / civ \ -v <br /> MTBE-90 00 -s GP <br /> �'.GP <br /> I00=0.3 ___- <br /> LOCATION OF T2-6'15' - I \\ MW-4A. <br /> SIDEWALK FORMER USTs ;.TI 5 1 <br /> .___ _ _ \\ w MW <br /> (11 <br /> 2-E-13 \ I ¢ (14.28) <br /> B-<0.5 <br /> \ to TPHG=<100 <br /> E2-W-13' \ .I Z MTBE-<I <br /> I �E2-C-13' Q DO=7.1 0 20 40 <br /> LOCATION OF v <br /> EXISTING USTs Et-W-13' I\ APPROX. SCALE IN FEET <br /> 7-ELEVEN, INC. <br /> I <br /> N \` FACILITY NO.19976 <br /> FACILITY 19976 ♦Mw-3 1399 NORTH MAIN STREET <br /> NO. <br /> I MANTECA, CALIFORNIA <br /> 8-<0.5 779956 <br /> TPHG-110 <br /> MTBE=<1 I DRAWN BY: S. LATHROP DATE: 03-19-01 <br /> I 00-0.5 I DRAFTED BY: DEN HOLMES 03-21-01 <br /> CHECKED BY; DATE: <br /> I <br /> POTENTIOMETRIC SURFACE AND <br /> DISSOLVED HYDROCARBON <br /> PLANTER I CONCENTRATION MAP <br /> - - - - - - - - (10/12/00 SHALLOW ZONE) <br /> IT CORPORATION FIGURE 3 <br /> 19976GWCI000OD <br />