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Table 1 <br /> GROUND WATER ELEVATIONS AND SAMPLE ANALYTICAL RESULTS <br /> Ruiz Grocery Store <br /> 4491 West Durham Ferry Road <br /> Tracy,California <br /> Notes <br /> TOC Top of casing referenced to mean sea level <br /> DTW Depth to water <br /> GWE Ground water elevation <br /> SPH Separate-please 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 to 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 /> # Emulsified SPH observed <br /> Samples unpreserved and 7 day holding period exceeded,samples analyzed 13 days after collection <br /> i <br /> Page 4 of 4 <br />