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TABLE 2 CONCENTRATIONS (pg/L) OF DISSOLVED PETROLEUM <br /> HYDROCARBONS IN GROUNDWATER SAMPLES, <br /> FORMER EXXON RS 7-3942, STOCKTON, CALIFORNIA, <br /> 28 JANUARY 1992 <br />' Ethyl- <br /> Well No Benzene Toluene benzene Xylenes TPH-g <br />' MW 11 <0 5 <0 5 <0 5 <0 5 <50 <br /> MW12 <05 06 <05 07 <50 <br /> RW 1 5,500 18,000 2,500 10,000 66,000 <br />' RW2 260 1,200 590 2,500 17,000 <br /> RW3 Not sampled -- LPH <br />' RW4 13,000 30,000 3,600 18,000 110,000 <br /> P1 110 26 270 330 2,000 <br /> P2 53 24 170 120 2,900 <br />' <br /> V1 20,000 58,000 2,400 23,000 150,000 <br /> V2 27,000 42,000 5,100 25,000 150,000 <br /> V3 1,100 21,000 4,900 23,000 86,000 <br />' V4 23,000 63,000 5,300 27,000 220,000 <br /> 1W1 130 25 330 500 3,600 <br /> Rinse blank <0 5 0 7 <0 5 0 8 <50 <br /> LPH = Liquid-phase hydrocarbons <br /> Note Wells MW 1-MW 10 did not contain enough water to sample <br /> I ' <br /> I <br /> I <br /> W PS 1113942(t 11Q[RIJA N92/f2 3 <br /> I <br />