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September 6, 1991 <br /> page 3 <br /> Quik Stop Markets, Inc. <br /> Project No.3-49132-31 <br /> Groundwater Elevations ly 31, 1991prior to sampling• <br /> with the well <br /> Depth to groundwater measureme feet rbelow the surfaceon e obtaiiuand ar se measurements range <br /> included <br /> Dep 10 to 15.50 from the <br /> The ranged from 15• data. A <br /> elevations in Table 1. Groundwater elevations calculat baked on available survey <br /> from contour man generated from these elevations is presented as Figure <br /> y 1 i.53 to 1 i.92 feet below mean sea level (MSL) <br /> groundwater elevation c <br /> 3. <br /> Laboratory Analyses <br /> Inc. (a state-certified laborza�to for <br /> roundwatt,r samples were analyzed at Anametrt les from all wells were cul <br /> The g California. The groundwater same for fecal coliform, <br /> located in San Jose, le from ArMW-2 was analyzedA summary of the analytical <br /> TP and BTE X and the same SJCPHS). analyses <br /> by the San Joacluin County Public Health Service{ Mw 2, <br /> est well samplings is Presented in Table I. Laboratory an Y <br /> results from current and p <br /> les from monitoring wells l�W`112, from <br /> d BTBX constituents were detected in the sample frm 1V1VJ- <br /> revealed no de�ectable TPHG or BTEX in samples groundwater sample <br /> MW-3,or MVV-4 while TPHG an The petroleum <br /> MW_5. In addition,no fecal co"fo o s as 4 attached nin Appendix B. <br /> 2. we <br /> The laboratory <br /> analytical rep le analyses are as follows: <br /> _. hydrocarbon results of the July 1991 same Ethyl Total <br /> Benzene Xylenes <br /> TPHG Benzene Toluene ( b) ( b) <br /> Sample Sample b) <br /> b) ( <0.5 <0.5 <br /> tber Date ( <0.5 <br /> 7131/gl <50 <0.5 <0.5 <0.5 <br /> MW- 1R 7/3119 <50 <0.5 <0 5 <0.5 <0.5 <br /> 2 1 <0.5 <0.5 <br /> W1-3 7131191 <50 <0.5 <0.5 3d 7.1 <br /> 7/31191 <5l7 8.5 <br /> WV-5 7/31/91 1900 <br /> _- TPIiiG Total petroleum hY <br /> drmarbons as gasoline <br /> PPI p per billion(µSII) Tactical quantitation limit for the method <br /> e0.5 Piot detected at or above listed p <br /> Discussion the ranging from 15.10 <br /> wells at the site was measured a depth <br /> to groundwater <br /> _ Groundw ater in the monitoring ' e data. <br /> to 15.50 Feet below the existing ground surface. Phew depths lin <br /> revious sampling. <br /> feet to 11.92 feet below mean sea��feel based On <br /> the available survey <br /> elevations of 11.53 f approximately <br /> The groundwater surface <br /> urs for my dropped predominant flow direction to the east at a gr <br /> Groundwater con <br /> of 0.0041• <br />