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Table 1 (Continued)
<br /> Groundwater Monitoring Data
<br /> ARCO Service Station 2168
<br /> 441 Charter Way, Stockton, California
<br /> Page 3 of 4
<br /> Well Ele.ation Static
<br /> Sample of fop of Water Elelation of Ethyl- Total
<br /> Number Date Casing Level Groundwater TPHG Benzene Toluene benzene Xylenes Observations
<br /> W-5
<br /> MW-5 01/20/93 928 41 12 -3184 NS NS NS NS NS No FP, No S, Yes 0
<br /> MW-5 01/26/93 928 4077 -3149 NS NS NS NS NS No FP, No S, Yes 0
<br /> MW-5(55) 03/10/93 928 39 11 -29 83 49,000 9,200 6,600 830 4,200 No FP, No S, Yes 0
<br /> MW-5(55) 06/10/93 928 3734 -28 06 37,000 6,400 4,100 870 3,800 No FP, No S, Yes 0
<br /> MW-5(55) 09/02/93 928 3823 -2895 51,000 7,900 6,600 990 4,800 No FP, No S, Yes 0
<br /> MW-5(55) 10/28/93 928 3846 -29 18 60,000 9,200 9,000 1,200 6,700 No FP, No S, Yes 0
<br /> MW5-36 03/23/94 928 3797 -2869 58,000 9,000 8,900 940 5,600 No FP, No S, Yes 0
<br /> MW5-36 06/24/94 928 3779 -28 51 50,000 7,300 7,500 920 4,700 No FP, S=NE, O=NE
<br /> I
<br /> MW-6
<br /> MW-6(47) 10/28/93 893 3708 -28 15 93,000 15,000 20,000 1,600 11,000 No FP, No S, Yes 0
<br /> MW6-41 03/23/94 893 37 61 -2868 79,000 11,000 14,000 1,500 9,300 No FP, No S. Yes O
<br /> MW6-41 06/29/94 893 3692 -2799 60,000 11,000 15,000 1,000 8,300 No FP, S=NE, O=NE
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