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Quarterly Groundwater Monrtormg Report Exxon Station 7-3330 <br />' TABLE 2 Summary of Laboratory Data Groundwater <br /> Exxon Service Station No 7-3330 <br /> 3128 West Benjamin Holt Dr <br /> Stockton, California <br /> Sample Date TPH-9 B T E X <br /> 1D No Sampled ppb b ppb bb <br /> MW-1 3/25/91 ND ND ND ND ND <br /> MW-1 6/19/91 ND ND ND ND ND <br /> MW-1 9/25/91 ND ND ND ND ND <br /> MW-1 ABANDONED 11/7/91 <br /> MW-2 3/25/91 ND 760 40 50 110 <br />' MW-2 6/19/91 1000 410 7 2 15 44 <br /> MW-2 9/25/91 3200 1600 11 60 170 <br /> MW-2 ABANDONED 11/7/91 <br /> MW-3 3/25/91 ND ND ND ND ND <br /> MW-3 6/19/91 ND ND ND ND ND <br /> MW-3 9/25/91 ND ND ND ND ND <br />' MW-3 12/26/91 ND ND ND ND ND <br /> MW-3 3/26/92 ND ND ND ND ND <br /> MW-3 6/27/92 ND ND ND ND ND <br /> MW-4 6/19/91 ND ND ND ND ND <br /> MW-4 9/25/91 ND ND ND ND ND <br /> MW-4 12/26/91 ND ND ND ND ND <br /> MW-4 3/26/92 ND 1 5 ND ND ND <br /> MW-4 6/27/92 ND ND ND ND ND <br /> MW-5 6/19/91 ND ND ND ND ND <br /> MW-5 9/25/91 ND ND ND ND ND <br /> MW-5 12/26/91 5600 1000 7 6 210 1000 <br /> MW-5 1/21/92 4800 1000 ND 320 83 <br /> MW-5 3/26/92 5700 1200 19 500 780 <br /> MW-5 6/27/92 1700 190 0 9 14 ND <br /> MW-6 6/19/91 ND ND ND ND ND <br /> MW-6 9/25/91 ND ND ND ND ND <br /> MW-6 12/26/91 ND ND ND ND ND <br /> MW-6 3/26/92 ND 1 0 ND ND ND <br /> MW-6 6/27/92 ND ND ND ND ND <br /> ' NOTES <br /> TPH-g Total Petroleum Hydrocabons as gasoline <br /> B Benzene <br /> T Toluene <br /> E Ethylbenzene <br /> X total Xylenes <br /> ' 3i75 Kerner Boulevard Suite E San Rafael CA 94901 • (415) 257 4801 • FAX (415) 257 4805 <br /> I� <br />