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GEOMATRIX <br /> TABLE 1 <br /> GROUNDWATER ANALYTICAL RESULTS' <br /> Surland Homes Property <br /> Tracy, California <br /> Results reported in micrograms per liter(µg/1) <br /> Sample Date Ethyl- <br /> ID Collected TPHg TPHd =Benzene Toluene benzenWNS Hs <br /> TW-1 9/14/98 <50 <50 <0.5 <0.5 <0.5DrTW-1 10/16/98 <50 <50 <0.5 <0.5 <0.5DTW-2' 9/14/98 1200' 520''` <05' <0.5' 1.7' ene 0.9;'`2.2''"ne 1.4''"TW-2 10/16/98 NSS NS NS NS NSS <br /> Notes: <br /> Samples analyzed by Friedman&Bmya,Inc.,for total petroleum hydrocarbons as gasoline(TPHg)and total petroleum <br /> hydrocarbons as diesel(TPHd)by EPA Method 8015;for benzene,toluene,ethylbenzene,and xylenes(BTEX)by EPA Method <br /> 8020;and for polyaromatic hydrocarbons(PAHs)by EPA Method 8270 SIM. <br /> Z ND=not detected at or above the laboratory reporting limit. <br /> ' Sheen observed on groundwater prior to sampling;sample included entrained sheen. Sample collected at the request of the San <br /> Joaquin County Public Health Services. <br /> " Sample filtered prior to extraction using a 0.7 micron glass fiber filter. <br /> s NS=not sampled due to presence of sheen on groundwater. <br /> I:\Dm—Safe\4780.01\GWRs1M.dm <br />