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Table Y <br /> GROUND WATER ELEVATIONS AND SAMPLE ANALYTICAL RESULTS <br /> Conrady Service Station <br /> 1002 North Yosemite Street <br /> Stockton,California <br /> Sample Collection TOC DTW GWE TPHg B T E X MTBE <br /> No Date (feet) (feet) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) ( b) <br /> MW-5 9/15/94 9644 2848 6796 — --- -- — "- <br /> 9/27/94 9644 2863 6781 ND<310 140 ND<6 3 51 ND<6 3 -~ <br /> 12/28/94(a) 9644 2871 6773 420 17 20 13 19 -- <br /> 3/8/95 9644 2675 6969 3,400 40 13 130 41 -~ <br /> 6/30/95 9644 2290 7354 12,000 110 14 950 2,300 --- <br /> 9/27/95 9643 2371 7272 1,700 56 20 260 92 <br /> 11/30/95 9643 2345 7298 670 47 07 93 ND<2 0 -- <br /> 2/27/96 9643 2068 7575 300 16 07 14 ND<2 0 ND<50 <br /> 5/30/96 9643 1929 7714 540 96 10 22 ND<2 0 ND<50 <br /> MW-6 9/27/95 9642 2382 7260 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ~- <br /> 11/30/95 9642 2357 7295 --- --- -- '- ~' ""- <br /> 2/27/96 9642 2084 7558 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<2 0 ND<50 <br /> 5/30/96 9642 1943 7699 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<2 0 ND<50 <br /> TOC Top of casing referenced to arbitrary elevation(100'above mean sea level) <br /> DTW Depth to water <br /> GWE Ground water elevation <br /> TPHg Total petroleum hydrocarbons as gasoline by EPA Method 8015(modified) <br /> BTEX Benzene,toluene,ethylbenzene and total xylenes by EPA Method 8020 <br /> ND Not detected,method detection limit not available <br /> ND<50 Not detected in concentrations exceeding the mdncated method detection or reporting limit <br /> --- Not tested <br /> ppb Parts per billion <br /> (a) Date of groundwater gauging Groundwater resampled 1/4/95 <br /> Page 2 of 2 <br />