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<br /> Table 1 Page 2 of 3 Pages
<br /> Groundwater Monitoring Data
<br /> ARCO Service Station 2168,411 Charter Way,Stockton,California
<br /> Well Elevation Static Elevation
<br /> Sample of Top Water of Total
<br /> Number Date of Casing Level Groundwater TPHG Benzene Toluene Ethylbenzene Xylenes Observations
<br /> MW-3(cont)
<br /> MW-3 12/01/94 958 3924 2966 Well Not Sampled No FP,$=Yes O=NE
<br /> MW 3(53) 02/16/95 958 3624 2666 37,000 14,000 340 2,100 470 No FP, No S,O=NE
<br /> MW-4
<br /> MW-4 01/20/93 1234 4435 3201 NS NS NS NS NS No FP, No S,Yes 0
<br /> MW-4 01/26/93 1234 4399 3165 NS NS NS NS NS No FP, No S Yes 0
<br /> MW 4(59) 03/10/93 1234 4242 3008 110,000 14,000 24,000 3,200 15,000 No FP, No S,Yes 0
<br /> MW 4(59) 06/10/93 1234 4068 -2834 110 000 9,100 17,000 2,700 13,000 No FP, No S,Yes 0
<br /> MW 4(59) 09/02/93 1234 4159 -2926 110 000 12,000 21 000 2,700 13,000 No FP, No S,Yes O
<br /> MW-4(59) 10/28/93 1234 4178 -2944 90,000 1,100 20,000 2,700 13,000 No FP,No S,Yes 0
<br /> MW-4(38) 03/23/94 1234 4123 -2889 38,000 7,600 12 000 2,000 10,000 No FP,No S,Yes 0
<br /> MW-4(38) 06/29/94 1234 4106 -2872 43,000 2,400 2,800 1,000 5,800 No FP,No S,O=NE
<br /> MW 4(43) 09/26/94 1234 4226 -2992 60,000 4,600 7,400 1,300 6,000 No FP,No S,O=NE
<br /> MW 4 12/01/94 1234 4241 3007 Well Not Sampled No FP S=Yes O=NE
<br /> MW 4(58) 02/16/95 1234 3925 2691 77,000 9200 13,000 1,700 8,000 No FP, No S,O=NE
<br /> MW-5
<br /> MW-5 01/20/93 928 4112 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 3911 -2983 49,000 9200 6,600 830 4200 No FP, No S Yes O
<br /> MW-5(55) 06/10/93 928 3734 -2806 37 000 6,400 4,100 870 3,800 No FP, No S,Yes O
<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 -2918 60,000 9,200 9,000 1,200 6,700 No FP, No S,Yes 0
<br /> MW-5(36) 03/23/94 928 3797 -2869 58,000 9,000 8,900 940 5,600 No FP,No S,Yes O
<br /> MW-5(36) 06/29/94 928 3779 -2851 50 000 7,300 7,500 920 4,700 No FP,S=NE,O=NE
<br /> MW-5(40) 09/26/94 928 3905 -2977 76,000 7,300 8,200 770 4200 No FP,S=NE,O=NE
<br /> MW 5 12/01/94 928 3922 -2994 110,000 8,700 9,200 800 4,800 No FP,S=No,O=NE
<br /> MW 5(39) 02/16/95 928 3578 -2650 180 000 8,500 15,000 2,200 12,000 No FP, No S,O=NE
<br /> MW-6
<br /> MW-6(47) 10/28/93 893 3708 -2815 93 000 15 000 20,000 1,600 11,000 No FP No S,Yes 0
<br /> MW-6(41) 03/23/94 893 3761 2868 79 000 11,000 14,000 1,500 9 300 No FP, No S,Yes 0
<br /> MW-6(41) 06/29/94 893 3692 2799 60,000 11 000 15,000 1 000 8,300 No FP S=NE O=NE
<br /> MW-6(39) 09/26/94 893 3815 -2922 92,000 7,500 13,000 1,100 6,800 No FP,S=NE,O=NE
<br /> MW-6 12/01/94 893 3836 -2943 Well Not Sampled No FP S=Yes,O=NE
<br /> MW-6(47) 02/16/95 893 3706 -2813 39,000 6,400 5,200 850 4,400 No FP, No S,O=NE
<br /> xls1080MI46031040595ai As
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