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<br /> Groundwater Monitoring Data Page 2 of 4
<br /> ARCO Service Station No 2168, 441 Charter Way, Stockton, California _
<br /> well Elevation Static Elevation
<br /> Sample of Top Water of Total
<br /> Number Date of Casing Level Groundwater TPHG &nzene Toluene Eth lbenaene Xylenes Observations
<br /> MW-3
<br /> MW 3(54) 12/17/92 958 4169 3211 67,000 12,000 5,500 2,100 7,200 No FP,No S,No O
<br /> MW-3(54) 03/10/93 958 3954 -2996 51,000 16 000 1,300 1 800 4,900 No FP,No S Yes 0
<br /> MW-3(54) 06/10/93 958 3742 -2784 44,000 12,000 2,100 1,800 3,200 No FP,No S Yes 0
<br /> MW 3(54) 09/02/93 958 3823 -2865 49,000 13,000 2,200 2,100 4,500 No FP,No S,Yes 0
<br /> MW-3(54) 10/28/93 958 3846 -2888 46,000 14,000 1,900 2000 4,200 No FP,No S,Yes 0
<br /> MW-3(36) 03/23/93 958 3802 -2844 42,000 12,000 2,300 1,900 3,300 No FP,No S,Yes O
<br /> MW-3(36) 06/29/94 958 3783 -2825 44,000 14,000 5 300 1,800 5,500 No FP,No S,O=NE
<br /> MW-3(40) 09/26/94 958 3901 -2943 45,000 9,200 2,500 1,000 2,700 No FP,No S,O=NE
<br /> MW 3 12/01/94 958 3924 -2966 Well Not Sampled No FP,S=Yes,O=NE
<br /> MW 3(53) 02116/95 958 3624 -2666 37,000 14 000 340 2 100 470 No FP,No S,0=NE
<br /> MW-3(53) 05/17/95 958 3l 49 -2191 39,000 13 000 1,200 2 100 1 500 No FP No S,O=NE
<br /> MW-3(53) 08/15/95 959 3106 -2148 31,000 11,000 220 1,800 910 No FP,No S,Yes O
<br /> MW-3(53) 11/29/95 958 3125 -2167 41000 10,000 350 1900 860 No FP,No S.Yes 0
<br /> MW-3 02/27/96 958 2851 1893 a 36 000 10,000 510 1,800 990 No FP,No S,Yes 0
<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 O
<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 -2925 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 13000 No FP,No S,Yes O
<br /> r-4(38) 0312.3194 1234 4123 -2889 38,000 7,600 12,000 2,000 10,000 No FP,No S,Yes 0
<br /> _4(38) 06/29/94 l2 34 4106 -2872 43,000 2,400 2,800 1,000 5,800 No FP,No S,O=NE
<br /> -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 /> 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 9,200 13,000 1,700 8,000 No FP,No S,O=NE
<br /> MW 4(58) 05/17/95 1234 3465 -2231 89,000 11,000 17,000 2,100 9,900 No FP,No S 0=NE
<br /> MW-4(59) 08/15/95 1234 3430 -2196 74,000 6,400 10,000 1,600 7,600 No FP,No S,Yes O
<br /> MW-4(59) 11/29/95 1234 3442 2208 92,000 7,800 12,000 1,700 7,600 No FP,No S,Yes O
<br /> MW 4 02/27/96 1234 3167 1933 V 61 000 7 600 8,500 1 600 6,600 No FP,No S,Yes 0
<br /> MW5
<br /> MW-5 01/20/93 928 41 12 -3184 NS NS NS NS NS No FP,No S,Yes O
<br /> MW 5 01/26/93 928 4077 -3149 NS NS NS NS NS No FP No S,Yes O
<br /> I
<br /> MW-5(55) 03/10/93 928 39 11 -2983 49,000 9,200 6,600 830 4,200 No FP,No S,Yes 0
<br /> MW-5(55) 06/10/93 928 3734 -2806 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 O
<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 O
<br /> NW 5\8*15\,1460n53096S 1 XLS Revision 1 5!301'96
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