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OF <br /> TABLE 2 QETROL£OMEHYDROCARBONS COINCTHERGROLNDWATER,' <br /> FORMER SCHEVRON <br /> Ss 9-1918, 45 EAST HARDING WAY, STOCKTON, CALIFORNIA, <br /> NOVEMBER 1988 - SEPrEMBER 1989 <br /> Total <br /> well Ethyl- Petroleum <br /> No. Date Benzene Toluene benzene Xylenes_ Hydrocarbons <br /> <0.5 <0.5 <0.5 <0.5 <50 <br /> MWI 11/15/88 <0.2 <0.2 <0.2 <250 <br /> MW1 02/07/89 <0.2 <br /> MW1 04/13/89 <0.5 <0.5 <0.5 <0.5 <250 <br /> Mwl 07/12/89 well was dry - did not sample <br /> MW1 09/21/89 well was dry - did not sample <br /> MW1 12/18/89 well was dry - did not sample <br /> MW1 09/19/90 well was dry - did not sample <br /> <0.5 0.9 77 <br /> MW2 11/15/88 3.0 4.9 <0.2 <0.2 <250 <br /> MW2 02/07/89 0.6 0.4 <0.5 <250 <br /> MW2 04/13/89 1.9 2.0 0.6 <0.5 <250 <br /> MW2 07/12/89 3.0 <0.5 <0.5 270 <br /> 27 <0.5 <br /> MW2 09/21/89 2.4 . <250 <br /> MW2 12/18/89 2.6 2.7 sample MW2 09/19/90 well was dry = did not sample <br /> MW3 11/15/88 2,700 360 2,800 2,000 9,300 <br /> MW3 02/07/89 1,600 160 340 440 3,900650 690 1,7`70 7,800 <br /> MW3 04/13/89 2,600 <br /> MW3 07/12/89 694 550 230 380 4,600 <br /> MW3 09721/89 well was dry - did not sample <br /> M413 12/18/89 well was dry - did not sample <br /> _ MW3 09/19/90 well was dry - did not sample <br /> MW4 11/15/88 1,500 3,300 330 1,300 6,800 <br /> MW4 02/07/89 5,200 17,000 1,300 4,400 32,000 <br /> MW4 04/13/89 10,OCD 42,000. 4,100 16,000 61,000. <br /> MW4 07/12/89 1,900 1,900 . 430 1,00 . 131OG0 <br /> MW4 C9/21/89 well was dry - did not sample <br /> MW4 12/11/89 well was dry - did not sample <br /> MW4 09/19/90 well was dry - did not sample <br /> MW5 11/15/88 2.3 4.5 <0.5 <0.5 400 <br /> MWS 02/07/89 110 2.7 1.5 1.5 390 <br /> MW5 04/13/89 830 7.7 150 <0.5 1,400 <br /> ,300 <0.5 640 <0: <br /> MW5 07/12/89 25-. 5,200 <br /> MW5 09/21/89 well was dry - did not sample <br /> MW5 12/18/89 well was dry - did not sample <br /> 1*15 09/19/90 well was dry - did not sample <br /> <0.2 <0.2 <0.2 <0.2 <250 <br /> Mw6 11/15/88 I9 <5* 150 1,300 <br /> N,W6 02/07/89 63 18 180 130 1,600 <br /> MW6 04713/89 68 <br /> 26 27 32 11e0O <br /> MW6 07/12/89 5:0 - did not sample <br /> Mw6 09/21/89 well was dry <br /> MW6 12/18/89 well was •9ry - did not sample <br /> MW 09/19/90 well was dry - did not sample <br /> * Ethylbenzene was not detected at or below 5 ug/L, because of <br /> dilution required. <br /> O 91919A2 <br />