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<br /> Groundwater Monitoring Data -
<br /> 1995 to Present
<br /> Former ARCO Service Station No 2168
<br /> 441 Charter Way, Stockton, California
<br /> Well ID Elevation Static Elevation Top
<br /> &Sample of Top Water of of Ethyl- I otal
<br /> Deptb Date of Casing Level Groundwater Screen 1PIIG I3en7ene Toluene benzenf, Xylenes M 113 Observdtions
<br /> MW-1 54 02/16/95 1045 37 11 -2666 35 5 36,000 11,000 460 990 3,200 NA No hP,No S,O=NE
<br /> MW-1 53 05/17/95 1045 3261 -22 16 38,000 12,000 790 1,100 3,400 NA No FP,No S,O=NE
<br /> MW-1 54 08/15/95 1045 32 13 -21 68 45,000 10,000 330 1,000 3,300 NA No FP,No S, Yes O
<br /> MW-1 54 11/29/95 1045 32 32 -2187 46,000 9,800 370 1,100 2,900 NA No FP,No S, Yes O
<br /> MW-1 02/27/96 WcllInaccessibIt,
<br /> MW-1 53 05/15/96 1045 2788 -1743 34,000 9,400 670 1,000 2,100 <25*[1] No FP,No S, Yes O
<br /> MW-1 53 08/22/96 1045 2850 -1805 35,000 9,100 1,000 1,000 2,000 <500*[1] No FP,No S, Yes O
<br /> MWA 11/25/96 1045 2871 -1826 37,000 7,900 460 870 1,500 <500*[I] No FP,No S, Yes O
<br /> MW-1 02/24/97 1045 2466 -1421 37,000 8,300 740 900 2,200 <500*[lj No FP,No S,Yes O
<br /> MW-1 05/19/97 1045 2454 -1409 30,000 8,200 310 780 1,100 <600*[1] No FP,No S,Yes O
<br /> MW-1 54 08/21/97 1045 2562 -15 17 28,000 8,200 380 860 1,100 <2,000**[I] No FP,No S,Yes O
<br /> MW-1 54 11/17/97 1045 2667 -1622 23,000 9,300 580 820 1,300 <1,000**[1] No FP,No S,Yes O
<br /> MWA 54 02/09/98 1045 2409 -1364 20,000 6,800 360 700 1,100 <1,000**[I] No IP,No S, Yes O
<br /> MW-1 53 05/22/98 1045 2008 -963 20,700 6,650 413 588 1,030 <100 No FP,No S Yes O
<br /> MW-1 53 08/12/98 1045 2026 -981 22,000 8,690 510 785 1,220 <2 No FP,No S, Yes O
<br /> MW-1 53 11/09/98 1045 21 40 -1095 21,300 7,420 289 628 1,020 242 No FP,No S,Yes O
<br /> MW-1 53 02/17/99 1045 2060 -1015 2,650 834 483 902 138 23 8 No FP,No S,Yes O
<br /> MW-1 53 05/25/99 1045 1996 -951 22,600 8,410 291 854 1,160 308 No FP,No S,Yes O
<br /> MW-1 53 08/18/99 1045 21 95 -1150 19,400 7,860 228 670 958 116 No FP,No S, Yes O
<br /> MW-1 53 12/17199[2] 1045 21 90 -1145 15,900 5,630 121 379 579 344 No FP,No S,O=NE
<br /> MW-1 53 02/22/00 1045 21 13 -1068 19,700 8,830 228 800 932 193 No FP,No S,Yes O
<br /> MW-1 54 06/22/00 1045 1989 -944 19,900 6,020 139 401 486 13 2 No FP,No S,Yes O
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