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Table 1
<br /> Groundwater Monitoring Data
<br /> ARCO Service Station 2168
<br /> 441 Charter Way, Stockton, California
<br /> Page 1 of 4
<br /> Well Elevation Static
<br /> Sample of Top of Water Eleiation of Ethyl- Total
<br /> Number Date Casing Level Groundwater TPHG Benzene Toluene benzene Xylenes Observations
<br /> MW-1
<br /> W-40-MW I 05/11/92 1045 4027 -29 82 60,000 5,900 1,600 430 800 No FP, No S, Yes 0
<br /> MW-1(54) 08/24/92 1045 4206 -3161 14,000 4,100 330 310 490 No FP, No S, Yes 0
<br /> MW-1(54) 12/17/92 1045 4279 -3234 14,000 3,500 410 400 800 No FP, No S, Yes 0
<br /> MW-1(54) 03/10/93 1045 4042 -29 97 28,000 6,500 340 580 1,700 No FP, No S, Yes 0
<br /> MW-1(54) 06/10/93 1045 3858 -28 13 23,000 5,600 640 470 1,400 No FP, No S, Yes O
<br /> MW-1(54) 09/02/93 1045 3950 -2905 27,000 7,500 700 620 2,300 No FP, No S, Yes O
<br /> MW-1(54) 10/28/93 1045 3973 -2928 31,000 8,900 1,200 830 2,300 No FP, No S, Yes 0
<br /> MW 1-39 03/23/94 1045 3923 -2978 34,000 8,300 630 740 2,400 No FP, No S, Yes O
<br /> MWI-39 06/29/94 1045 39 02 -28 57 36,000 11,000 11,500 840 3,300 No FP, S=NE, O=NE
<br /> MW-2
<br /> W-40-MW2 05/11/92 1083 4063 -29 80 14,000 2,100 160 <50 1,100 No FP, No S, Yes 0
<br /> MW-2(53) 08/24/92 1083 4244 -3161 12,000 2,400 1,100 110 600 No FP, No S, Yes O
<br /> MW-2(53) 12/17/02 1083 43 18 -32 35 13,000 2,500 1,500 190 880 No FP, No S, Yes 0
<br /> MW-2(53) 03/10/93 1083 4077 -29 94 16,000 3,300 1,500 210 1,00 No FP, No S, Yes 0
<br /> MW-2(53) 06/10/93 1083 3894 -28 11 19,000 3,700 I,800 280 1,100 No FP, No S, Yes 0
<br /> LMW22-39
<br /> 09/02/93 1083 3986 -2903 18,000 3,300 1,800 260 1,200 No FP, No S, Yes O
<br /> 10/28/93 1083 4009 -2926 17,000 3,600 2,300 320 I,500 No FP, No S, Yes 0
<br /> 03/23/94 1083 3961 -2878 29,000 4,100 2,800 410 1,600 No FP, No S, Yes 0
<br /> 06/29/94 10 83 3940 -28 57 23,000 4,400 2,600 330 1,500 No FP, S=NE, O=NE
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