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<br /> Groundwater Monitoring Data
<br /> ARCO Service Station No, 2168, 441 Charter Way, Stockton, California -
<br /> M
<br /> Well Elevation Static Elevation Top
<br /> Sample of Top Water of of Total
<br /> Number Date of Cases Level Groundwater Screen TPHG Benzene Toluene Eth lbenzene Xylenes MTBE Observations
<br /> MW-4
<br /> MW4(58) 05/17/95 1234 34 65 -2231 89,000 11,000 17,000 2,100 9,900 NA No FP,No S,O=NE
<br /> MW4(59) 08/15/95 1234 3430 -2196 74,000 6,400 10,000 1,600 7,600 NA No FP,No S,Yes 0
<br /> MW-4(59) 11/29/95 1234 3442 -2208 92,000 7,800 12,000 1,700 7,600 NA No FP,No S,Yes 0
<br /> MW4 02/27/96 1234 3167 -1933 61,000 7,600 8,500 1,600 6,600 NA No FP,No S,Yes 0
<br /> MW-4(58) 05/15/96 1234 30 09 -1775 64,000 8,100 8,600 1,600 6,400 <500* No FP,No S,Yes 0
<br /> MW-4 08/22/96 12 34 3072 -1838 79,000 9,200 11,000 1,800 7,400 <100** No FP,No S,Yes 0
<br /> MW-5
<br /> MW-5 01/20/93 928 41 12 -3184 370 NS NS NS NS NS NS No FP,No S,Yes 0
<br /> MW-5 01/26/93 9 28 4077 -3149 NS NS NS NS NS NS No FP,No S,Yes 0
<br /> MW-5(55) 03/10/93 928 3911 -2983 49,000 9,200 6,600 830 4,200 NA No FP,No S,Yes 0
<br /> MW-5(55) 06/10/93 9 28 3734 -28 06 37,000 6,400 4,100 870 3,800 NA No FP,No S,Yes O
<br /> MW-5{55} 09/02/93 928 3823 -28 95 51,000 7,900 6,600 990 4,800 NA No FP,No S,Yes 0
<br /> MW-5(55) 10/28/93 9 28 3846 -29 18 60,000 9,200 9,000 1,200 6,700 NA No FP,No S,Yes 0
<br /> MW-5(36) 03/23/94 928 3797 -28 69 58,000 9,000 8,900 940 5,600 NA No FP, No S,Yes 0
<br /> MW-5(36) 06/29/94 9 28 3779 -2851 50,000 7,300 7,500 920 4,700 NA No FP,S=NE,O=NE
<br /> MW-5(40) 09/26/94 9 28 39 05 -2977 76,000 7,300 8,200 770 4,200 NA No 11),S=NF,O=NE-
<br /> MW-5
<br /> =NEMW-5 12/01/94 9 28 3922 -2994 110,000 8,700 9,200 800 4,800 NA No FP,S=No,O=NE
<br /> MW-5(39) 02/16/95 9 28 3578 -2650 180,000 8,500 15,000 2,200 12,000 NA No FP,No S,O=NE
<br /> MW-5(55) 05/17/95 9 28 3123 -2195 22,000 3,400 2,100 390 2,400 NA No FP,No S,O=NE
<br /> MW-5(55) 08/15/95 9 28 30 83 -2155 32,000 4,200 3,500 410 2,500 NA No FP,No S,Yes 0
<br /> MW-5(55) 11/29/95 928 3100 -2172 52,000 8,300 8,100 810 4,100 NA No FP,No S,Yes 0
<br /> MW-5 02/27/96 928 2819 -1891 20,000 3,200 1,900 440 1,800 NA No FP,No S,Yes 0
<br /> MW-5(55) 05/15/96 928 2666 -1738 43,000 6,500 5,000 790 3,400 <500* No FP,No S,Yes 0
<br /> MW-5 08/22/96 928 27 14 -1786 58,000 8,700 8,200 880 4,500 <500* No FP,No S,Yes 0
<br /> MW-6
<br /> MW-6(47) 10/28/93 893 3708 -2815 300 93,000 15,000 20,000 1,600 11,000 NA No FP,No S,Yes 0
<br /> MW-6(41) 03/23/94 893 37 61 -2868 79,000 11,000 14,000 1,500 9,300 NA No FP,No S,Yes O
<br /> MW-6(41) 06/29/94 893 3692 -27 99 60,000 11,000 15,000 1,000 8,300 NA No FP,S=NE,O=NE
<br /> MW-6(39) 09/26/94 893 38 15 -2922 92,000 7,500 13,000 1,100 6,800 NA 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 NA No FP,No S,O=NE
<br /> EMW-6(46)
<br /> 05/17/95 893 3064 -2171 130,000 9,900 16,000 1,800 10,000 NA No FP,No S,08/15/95 893 3022 -2129 120,000 7,700 9,700 1,500 8,900 NA No FP,No S,Yes 0
<br /> N VQ-S\1805114607\092696MI XLS Revision 2 10!15/96
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