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IIIIIIIIIIIIIII� � IIIIIIIIIII� � � IIIIII� IIIIII� IIII� � � � I� � � IIIIIIIIIIII� <br /> TABLE 1 GROUNDWATER MONITORING DATA, FORMER EXXON RS 7-3942, 4444 NORTH PERSHING AVENUE, STOCKTON, CALIFORNIA <br /> a <br /> Casing Depth Groundwater LPH Concentration ( /L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> No Date (feet msl) (feet) (feet msl) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> I <br /> 1W l 11/11/97 690 1985 —1295 000 30 <10 160 130 2,200 <50 <br /> 1 W 1 03/03/98 6 90 1411 —721 000 21 <5 0 220 170 2,900 <25 <br /> IW 1 03/03/98 690 <5 91 <br /> IW 1 05/20/98 690 14 15 —725 000 17 <10 160 93 2,600 <50 <br /> 1 W 1 05/20/98 690 <2 O* <br /> W I 08/19/98 690 1566 —876 000 12 <2 5 120 79 1,600 28 <br /> lW I 08/19/98 690 <4 O* <br /> lW 1 11/18/98 690 1602 —912 000 16 <5 0 78 40 1,300 26 <br /> 1 W l 03/30/99 690 -- -- -- -- -- -- -- -- <br /> I W 1 05/05/99 690 1452 -7 62 000 1 56 <1 0 148 72 5 2,170 106 <br /> IW 1 08/20/99 690 1600 —9 10 000 -- -- -- -- -- — <br /> IW 1 12/06/99 690 1622 —932 000 <1 <1 19 8 5 420 19 <br /> 1 W 1 02/29/00 690 13 73 —683 000 <1 <1 <1 <1 68 <1 <br /> IW 1 05/16/00 690 13 82 -692 000 7 6 <1 1 6 <1 490 2 4 <br /> lW 1 09/11/00 690 16 15 -925 000 051 <0 5 096 <0 5 590 <0 5 <br /> IW 1 12/13/00 690 1600 -9 10 000 <0 5 <0 5 <0 5 192 690 <0 5 <br /> lW 1 03/08/01 690 15 13 -823 000 <0 5 <0 5 <0 5 <0 5 <50 <0 5 <br /> I W I 06/21/01 690 1651 —9 61 000 <0 5 <0 5 15 0 6 800 5 7 <br /> lWl 06/21/01 690 <5*, <br /> INV] 09/20/01 690 1761 -1071 000 6 9 <2 5 <2 5 <2 5 <250 <2 5 <br /> MW 1 01/87 776 -- -- -- <1 <1 -- <1 <50 -- <br /> M W I 07/16/87 776 -- -- -- <0 5 15 <0 5 <0 50 <100 -- <br /> M W 1 04/11/88 776 2051 -12 75 000 <0 5 <0 5 <0 5 <0 5 <100 - <br /> M W 1 09/13/88 776 22 18 -1442 000 19 2 5 <0 5 <0 5 70 -- <br /> MW 1 11/16/88 776 2307 -1531 000 <0 5 95 <0 5 <0 5 130 -- <br /> M W I 02/09/89 776 2264 -1488 000 1 7 0 2 0 2 0 6 <250 -- <br /> 1)iolecrs1739425master\�vp1g9OiI 3942aw xls Page 2 of 47 <br /> u <br />