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0 • <br /> Table 2 <br /> GROUND WATER ELEVATIONS ARID SAMPLE ANALYTICAL RESULTS <br /> Ruiz Grocery Store <br /> 4491 West Durham Ferry Road <br /> Tracy,California <br /> Noles. <br /> TOC Top of casing referenced to mean sea level <br /> DTW Depth to water <br /> GWE Ground water elevation <br /> SPH Separate-phase hydrocarbons <br /> TPHg Total petroleum hydrocarbons as gasoline by EPA Method 8015(CA LUFT modified) <br /> BTEX Benzene,toluene,ethylbenzene and total xylenes by EPA Method 8020(CA LUFT modified) <br /> MTBE Methyl tertiary butyl ether by EPA Method 8020 <br /> ND<50 Not detected in concentrations exceeding the indicated method detection limit - <br /> Not tested/measured <br /> ppb Parts per billion <br /> * Corrected for presence of separate-phase hydrocarbons <br /> ** Water sample collected from RW-1 after approximately 18 hours of pumping at 5 gpm <br /> i <br /> 4of4 <br />