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Tte 1 • T <br /> Page 3 of 7 <br /> Groundwater Monitoring Data <br /> 1995 to Present <br /> ARCO Service Station No. 2130 <br /> 7906 North El Dorado Street, Stockton, California <br /> Well Elevation Static Water Groundwater Ethyl- Total <br /> Number Date Top of Casmg Top of Screen Level Elevation TPHG Benzene Toluene benzene Xylene MTBE Observations <br /> MW-4 08/28/95 1457 5500 54 10 -3953 <50 <0 5 <05 <05 <05 NA No FP,No S <br /> MW-4 12/07/95 1457 5500 5269 -3812 <50 <05 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-4 02/05/96 1457 5500 5012 -35 SS <50 <05 <0 5 <0 5 <0 5 NA No FP, No S <br /> MW-4 05/30/96 1457 5500 4721 -3264 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-4 09/18/96 1457 5500 5180 -3723 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP, No S <br /> MW-4 11/26/96 1457 5500 48 84 -3427 <50 <0 5 <0 5 <0 5 <05 <3 No FP, No S <br /> MW-4 03/24/97 1457 5500 43 84 -2927 <50 <05 <05 <05 <0 5 <3 No FP, No S <br /> MW-4 05/20/97 1457 5500 4434 -2977 <50 <0 5 <0 5 <05 <0 5 <3 No FP,No S <br /> MW-4 08/19/97 1457 5500 4789 -3332 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-4 11/19/97 1457 5500 4601 -3144 <50 11 068 <0 5 054 <5 No FP, No S <br /> MW-4 03/04/98 1457 5500 4164 -2707 <50 <0 5 <0 5 <0 5 <05 <5 No FP, No S <br /> MW-4 06/26/98 1457 5500 3916 -2459 <50 141 <0 5 <05 <05 <5 No FP, No S <br /> MW-4 09/01/98 1457 5500 4183 -2726 <50 <05 <05 <05 <05 <5 No FP, No S <br /> MW-5 08/28/95 1510 5800 5461 -3951 130 27 <0 5 4 5 0 6 NA No FP,No S <br /> MW-5 12/07/95 1510 5800 5320 -38 10 <200** 21 <0 5 07 <0 5 NA No FP, No S j <br /> MW-5 02/05/96 1510 5800 5067 -3557 <200** 3 0 <0 5 0 9 <0 5 NA No FP,No S <br /> MW-5 05/30/96 1510 5800 4770 -3260 140*** 15 <0 5 5 2 <0 5 <4** No FP, No S <br /> - 09/18/96 1510 5800 5156 -3646 <300*** 33 <0 5 9 0 <0 5 <3 No FP, No S <br /> i <br /> -5 11/26/96 1510 58 00 4934 -3424 <200*** 19 <0 5 05 <0 5 <4** No FP,No S <br /> MW-5 03/24/97 1510 5800 4424 -29 14 <200*** 3 2 <0 5 16 3 0 <8** No FP,No S <br /> MW-5 05/20/97 15 10 58 00 4485 -2975 270 31 5 0 5 0 15 <20** No FP, No S <br /> MW-5 08/19/97 1510 5800 4837 -3327 100 20 <0 5 38 <0 5 <5 No FP,No S <br /> MW-5 11/1.9/97 1510 5800 4662 -3152 <50 12 0 94 <0 5 0 91 <5 No FP, No S <br /> MW-5 03/04/98 1510 5800 4190 -2680 <50 5 6 18 16 31 <5 No FP, No S <br /> jj <br /> CP1D IQMR\3RDQTRARC01213oQ398 XLS <br /> Table 1 <br /> 11/16/98 <br />