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Table o Pat9of 5
<br /> Groundwater Monitoring Data
<br /> 1995 to Present
<br /> ARCO Service Station No. 548, 1612 Hammer Lane, Stockton, California
<br /> Well Elevation Static Top Elevation Groundwater
<br /> Sample of Top Water of of Flow Ethyl- Total
<br /> Number Date of Casing Level Screen Groundwater Direction TPHG Benzene Toluene benzene X leues MTBE t1j Observations
<br /> MW-6 (58) 02/15/95 895 4002 40 00 -3107 E <50 <0 5 <05 <0 5 <05 NA No FP,No S,O=NE
<br /> MW-6 (58) 05/12/95 895 3826 -2931 E <50 <0 5 <0 5 <0 5 <0 5 NA No IT,No S,No O
<br /> MW-6 (59) 08/29/95 895 3991 -3096 E *<52 <0 5 <0 5 <0 5 <0 5 NA No FP,No S,No 0
<br /> MW-6 (58) 12/04/95 895 38.38 -2943 E *<70 <0 5 <0 5 <0 5 <0 5 NA No FP,No S,No 0
<br /> MW-6 02/02/96 895 3638 -2743 E <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S,No 0
<br /> MW-6 (59) 05/10/96 895 3388 -2493 E <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S,No 0
<br /> MW-6 (59) 08/29/96 895 3566 -2671 E <50 <0 5 <05 <0 5 <0 5 <3 No FP,No S,No 0
<br /> MW-6 (59) 11/20/96 895 3457 -2562 E <50 <05 <0 5 <0 5 <0 5 <3 No FP,No S,No 0
<br /> MW-6 (57) 03/19/97 895 3083 -2188 E-SE <50 <0 5 <0 5 <0 5 <05 <3 No FP,No S,No 0
<br /> MW-6 05/27/97 895 3116 -2221 E-SE <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S,No 0
<br /> MW-6 (59) 08/12/97 895 3255 -2360 E <50 <0 5 <05 <0 5 <0 5 <5 No FP,No S,No 0
<br /> MW-6 (57) 11/18/97 895 3219 -2324 E 54 59 58 16 92 <5 No FP,No S,No 0
<br /> MW-6 (57) 02/16/98 895 2883 -1988 SE <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S,No 0
<br /> MW-6 (57) 06/23/98 [P] 895 2636 -1741 SE <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S,No 0
<br /> MW-6 (57) 09/29/98 [P] 895 2819 -1924 E <50 <0 5 <0 5 <05 <0 5 <5 No FP,No S,No 0
<br /> MW-6 (59) 12/30/98 [P] 895 2591 -1696 SE <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S,No 0
<br /> MW-6 (59) 03/31/99 [P] 895 2437 -1542 E-SE <50 0 623 <05 <0 5 <0 5 122 No FP,No S,No 0
<br /> VW-1 (43) 09/29/98 [NP] NM 2873 -- E 18,800 573 590 873 4,120 2,300 No FP,No S,Yes 0
<br /> VW-1 (43) 12/30/98 [NP] NM 2650 -- SE 19,200 2,150 <50 691 3,310 785 No FP,No S,Yes 0
<br /> VW-1 03/31/99 NM 2497 -- E-SE Not scheduled for sampling No FP,No S,No 0
<br /> VW-2 (41) 09/29/98 [NP] NM 2901 -- E 13,200 822 <12 5 1,370 754 <125 No FP,No S,Yes 0
<br /> VW-2 (41) 12/30/98 [NP] NM 2747 -- SE 8,950 778 <20 1,180 339 <200 No FP,No S,Yes 0
<br /> VW-2 03/31/99 NM 2521 -- E-SE Not scheduled for sampling No FP,No S,No 0
<br /> VW-3 (40) 09/29/98 [NP] NM 2945 -- E 39,300 2,360 391 1,540 9,790 <500 No FP,No S,Yes 0
<br /> VW-3 (40) 12/30/98 [NP] NM 2728 -- SE 40,500 3,450 287 2,370 11,700 <500 No FP,No S,Yes 0
<br /> VW-3 03/31/99 NM 2587 -- E-SE Not scheduled for sampling No FP,No S,No 0
<br /> ME IARC0105481QTRLY10548Q199 XIS 7)UM4&
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