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<br /> Groundwater Monitoring Data
<br /> ARCO Service Station No. 548, 1612 Hammer Lane, Stockton, California
<br /> Well Elevation Static Elevation
<br /> Sample of Top Water of Ethyl- Total
<br /> Number Date of Casing Level Groundwater TPHG Benzene Toluene benzene Xylenes MTBE Observations
<br /> MW-4(cont)
<br /> MW-4(64) 09/04/92 1157 5065 -39 08 <50 <0 50 <0 50 <0 50 <0 50 No FP,No S,Yes 0
<br /> MW4(64) 12/04/92 1157 49 73 -38 16 <50 <0 50 <0 50 <0 50 <0 50 No FP,No S, Yes O
<br /> MW4(63) 03/04/93 1157 4689 -3532 <50 <0 5 <0 5 <0 5 <0 5 No FP,No S, Yes O
<br /> MW-4(63) 06/07/93 1157 4522 -33 65 <50 <0 5 <0 5 <0 5 <0 5 No FP,No S,No 0
<br /> N4W-4(63) 09/02/93 1157 4696 -3539 <50 <0 5 <0 5 <0 5 <0 5 No FP,No S,No 0
<br /> NW-4(63) 12/16/93 1157 4488 -3331 <50 <0 5 <0 5 <0 5 <0 5 No FP, No S,No O
<br /> N1W4(41) 04/08/94 1157 4197 -1040 26 1 2 2 0 05 2 6 No FP,No S,O=NE
<br /> N1W-4 06/22/94 1157 4226 -3069 <10 <0 3 <0 3 <0 3 <0 5 No FP,No S,O=NE
<br /> NIW-4(45) 09/23/94 1157 4442 -3285 <50 <0 5 <0 5 <0 5 <0 5 No FP,No S,O=NE
<br /> NIW4(48) 12/02/94 1157 4369 -32 12 <50 <0 5 <0 5 <0 5 <0 5 No FP,No S,O=NE
<br /> N1W-4(63) 02/15/95 1157 42 12 -3055 <50 <0 5 <0 5 <0 5 <0 5 No FP,No S,O=NE
<br /> MW-4(63) 05/12/95 1157 4028 -2871 <50 <0 5 <0 5 <0 5 <0 5 No FP,No S,No 0
<br /> MW4(63) 08/29/95 1157 4172 -30 15 <50 <0 5 <0 5 <0 5 <0 5 No FP,No S,No 0
<br /> MW4(63) 12/04/95 1157 40 44 -28 87 <50 <0 5 <0 5 <0 5 <0 5 No FP,No S,No 0
<br /> hIW4 02/02/96 1157 3854 -2697 <50 <0 5 <0 5 <0 5 <0 5 No FP,No S,No 0
<br /> MW-4(63) 05/10/96 1157 3602 -2445 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S,No 0
<br /> MW-5
<br /> W44-MW5 03/29/93 937 4425 -3488 930 16 <0 5 19 97 NA No FP,No S, Yes 0
<br /> MW-5(61) 06/07/93 937 4338 -3401 1,100 40 14 42 58 NA No FP,No S,Yes 0
<br /> MW-5(60) 09/02/93 9 37 45 32 -3595 1,200 76 17 52 57 NA No FP,No S, Yes 0
<br /> MW-5(60) 12/16/93 9 37 43 03 -3366 820 34 14 39 41 NA No FP,No S, Yes 0
<br /> MW-5(39) 04/08/94 9 37 3999 -3062 4,800 640 68 670 800 NA No FP,No S,O=NE
<br /> MW-5 06/22/94 9 37 4054 -31 17 9,200 1,100 140 1,300 2,000 NS No FP,No S,O=NE
<br /> MW-5(43) 09/23/94 937 4278 -3341 2,700 400 31 150 310 NS No FP,No S,O=NE
<br /> MW-5(46) 12/02/94 937 4189 -3252 2,200 380 28 210 330 NS No FP,No S,O=NE
<br /> MW-5(60) 02/15/95 937 4028 -3091 6,700 420 87 620 1,100 NS No FP,No S,O=NE
<br /> MW-5(61) 05/12/95 937 3895 -29 08 5,000 560 110 400 600 NS No FP,No S,Yes 0
<br /> MW-5(60) 08/29/95 937 40 07 -3070 5,700 410 150 310 590 NS No FP, No S,Yes 0
<br /> NIW-5(61) 12/04/95 937 3863 -2926 1,200 55 11 83 92 NS No FP,No S,Yes O
<br /> MW-5 02/02/96 937 3666 -2729 270 7 6 1 5 11 98 NS No FP,No S,Yes 0
<br /> MW-5(60) 05/10/96 937 34 15 -2478 5,700 420 180 380 610 34 No FP,No S,Yes O
<br /> N\x1s\0805V 3005!)6 1996M1 xis Revision 2 7126/96
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