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Table 1 (Continued) <br /> Groundwater Monitoring Data <br /> ARCO Service Station 0548 1612 Hammer Lane Stockton California <br /> Well Elevation Static Elevation <br /> Sample of Top Water of Total <br /> Number Date of Casing Level Groundwater TPHG Benzene Toluene Elh (benzene xylenes TOG Observations <br /> MW-3 <br /> W-49•MW3 10/30/91 995 4900 3905 <50 <0 50 <0 SO <0 50 <0 50 NS No FP No S No O <br /> MW-3(62) 03/18/92 995 4578 3583 <50 <0 50 <0 50 <0 50 <0 50 NS No FP,No S, No 0 <br /> MW-3(62) 06/10/92 995 4747 3752 60 <0 50 <0 50 <0 50 <0 50 NS No FP No S, No O <br /> MW-3(62) 09/04/92 995 4922 -3927 "<73 <0 50 <0 50 <0 50 <0 50 NS No FP No S,Yes 0 <br /> MW-3(62) 12/04/92 995 4830 -3835 "<150 <0 50 <0 50 <0 50 <0 50 NS No FP, No S Yes 0 <br /> MW-3(62) 03/04/93 995 4543 -3548 "<140 <0 5 <0 5 <0 5 <0 7 NS No FP, No S Yes 0 <br /> MW-3(62) 06/07/93 995 4375 3380 "<150 <0 5 <0 5 <0 5 <0 5 NS No FP,No S Yes O <br /> MW 3(62) 09/02/93 995 4551 3556 <50 <0 5 <0 5 <0 5 <0 5 NS No FP,No S,Yes 0 <br /> MW 3(62) 12/16/93 995 4364 3351 "'140 <0 5 <0 5 <0 5 <0 5 NS No FP No S No 0 <br /> MW-3(40) 04/08/94 995 4050 3055 330 27 16 25 17 NS No FP,No S O=NE <br /> MW 3 06/22/94 995 4082 3087 <10 <0 5 <0 5 <0 3 <0 5 NS No FP No S O=NE <br /> MW-3(44) 09/23/94 995 4302 -3307 110 <0 5 <0 5 <0 5 <0 5 NS No FP No S No 0 <br /> MW-4 <br /> W-25-MW4 10/30/91 1157 5045 3888 <50 <0 50 <0 50 <0 50 <0 50 NA No FP,No S, No O <br /> MW-4(63) 03/18/92 1157 4724 3567 <50 <0 50 <0 50 <0 50 <0 50 NA No FP,No S,No 0 <br /> MW-4(63) 06/10/92 1157 4894 3737 <50 <0 50 <0 50 <0 50 <0 50 NA No FP,No S,No 0 <br /> MW 4(64) 09/04/92 1157 5065 -3908 <50 <0 50 <0 50 <0 50 <0 50 NA No FP, No S,Yes O <br /> MW-4(64) 12/04/92 1157 4973 3816 <50 <0 50 <0 50 <0 50 <0 50 NA No FP, No S,Yes O <br /> MW-4(63) 03/04/93 1157 4689 3532 <50 <0 5 <0 5 <0 5 <0 5 NA No FP, No S,Yes 0 <br /> MW-4(63) 06/07/93 1157 4522 -3365 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S, No 0 <br /> MW-4(63) 09/02993 1157 4696 3539 <50 <0 5 <0 5 <0 5 <0 5 NA No FP No S, No 0 <br /> MW 4(63) 12/16/93 1157 4488 3331 <50 <0 5 <0 5 <0 5 <0 5 NA No FP No S,No O <br /> MW 4(41) 04/08/94 1157 4197 3040 26 12 20 05 26 NA No FP No S,0-NE <br /> MW 4 06/22/94 1157 4226 3069 <10 <0 3 <0 3 <0 3 <0 5 NA No FP No S 0-NE <br /> MW 4(45) 09/23/94 1157 4442 3285 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S,O=NE <br /> xls108051140011110494a1 As <br />