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Tab* •
<br /> Groundwater Monitoring Data
<br /> 1995 to Present
<br /> ARCO Service Station No. 548, 1612 Hammer Lane, Stockton, California Page 4 of 6
<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 leases MTBE[1] Observations
<br /> MW-5 (60) 09/29/98 [P] 937 2839 -1902 E 1,790 242 <5 121 135 145 No FP,No S,Yes 0
<br /> MW-5 (60) 12/30/98 [P] 937 2622 -1685 SE 275 19 <0 5 605 0 629 382 No FP,No S,Yes O
<br /> MW-5 (60) 03/31/99 [P] 937 2471 -1534 E-SE 934 842 <0 5 <0 5 0 835 157 No FP,No S,Yes O
<br /> MW-5 (60) 06/28/99 [P] 937 2588 -1651 SE 175 224 <0 5 115 203 328 No FP,No S,Yes 0
<br /> MW-6 (58) 02/15/95 895 4002 40 00 -3107 E <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S,O=NE
<br /> MW-6 (58) 05/12/95 895 3826 -2931 E <50 <0 5 <0 5 <05 <0 5 NA No FP,No S,No 0
<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 3838 -2943 E *<70 <0 5 <0 5 <0 S <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 <05 <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 <0 5 <0 5 <0 5 <3 No FP,No S,No 0
<br /> MW-6 (59) 11/20/96 895 3457 -2562 E <50 <0 5 <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 <05 <0 5 <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 <0 5 <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 <0 5 <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 <0 5 <0 5 <0 5 122 No FP,No S,No 0
<br /> MW-6 (59) 06028/99 [P] 895 2559 -1664 SE <50 <0 5 <0 5 <0 5 <0 5 181 No FP,No S,No 0
<br /> VW-1 (43) 09/29/98 [NP] NM 2873 -- E 18,800 573 590 873 49120 2,300 No FP,No S,Yes 0
<br /> VW-1 (43) 12/30/98 [NP] NM 2650 -- SE 19,200 29150 <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-1 06/28/99 NM 2599 -- SE Not scheduled for sampling No FP,No S,O=NE
<br /> I
<br /> VW-241 09/29/98 NP NM 29 01 -- E 13,200 822 <12 5 1,370 754 <125 No FP,No S,Yes 0
<br /> CPT 1ARC01054$\QTRLY10548Q299 XLS P "&
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