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<br /> Groundwater Monitoring Data
<br /> ARCO Service Station No 2186
<br /> 3212 With California Street, Stockton, California
<br /> Elevation of Stanc Water[l) Screen Elevation of Total
<br /> Well Top of Casing Level Interval Groundwater Groundwater TPHG Benzene Toluene Ethylbenzene Xylenes MTBE[31
<br /> Sample No Date feet rnsl feet b feet b s feet msl Flow Direction Observations
<br /> MW-i 9/25/1995 1465 5805 456747 -4340 SE 20 000 780 2,000 690 4,100 NA No FP,No S
<br /> 10/23/1995 5789 -4324 20 000 590 1 100 600 3,600 NA No FP,No S
<br /> 12/22/1995 5378 39 13 E 730 3 5 <1 0[2] 13 13 NA No FP No S
<br /> 2/16/1996 50 13 3548 E 1,200 22 <1 0[2] 51 24 NA No FP,No S
<br /> 5/23/1996 4535 3070 E 760 90 10 22 50 <5 0 No FP No S
<br /> 9/19/1996 5363 -3899 NE 10 000 480 570 520 700 <50* No FP No S
<br /> 11/27/1996 5077 36 12 SE 19 000 700 1,800 820 2,200 <100* No FP,No S
<br /> 3/21/1997 4206 -2741 SE 5,300 260 210 200 440 <30* No FP No S
<br /> 5/22/1997 4389 -2924 E-NE 25,000 920 1,900 1,400 31500 <120* No FP No S
<br /> 8/20/1997 4983 35 18 E-NE 31 000 1 000 2 800 1,300 4,000 <500** No FP,No S
<br /> 11/20/1997 4907 -3442 E 24 000 830 1900 1,100 3,600 <1,000** No FP,No S
<br /> 2/17/1998 4432 2967 E-SE 19,000 680 990 980 3,200 <100** No FP,No S
<br /> 6/24/1998 3579 2114 E 505 275 <2 5 602 973 <25 No FP,No S
<br /> 9/21/1998 3935 2470 E-NE 18,900 792 1,410 1,130 3,690 <125 No FP,No S
<br /> 12/14/1998 3734 -2269 E-NE 13,800 613 449 896 2,800 <100 No FP,No S
<br /> MW 1 (Discrete) 12/14/1998 3734 2269 E-NE 7 170 424 161 527 848 <100 No FP,No S
<br /> 3/31/1999 3414 -1949 N-NE 817 432 <0 5 <0 5 <0 5 <5 0 No FP,No S
<br /> 6/11/1999 3422 -1957 E NE 7,310 397 162 543 1,500 <50 No FP,No S
<br /> 9/10/1999 3841 -2376 E-NE 22,800 941 1,180 1,410 4,450 2,590 No FP,No S
<br /> 12/3/1999 3834 -2369 E 15,400 552 155 907 2,680 517 No FP No S
<br /> 4/3/2000 3500 -2035 NE 6,940 534 <20 518 1,260 334 No FP,No S
<br /> 6/2212000 35 13 -2048 E 14,700 675 144 744 2,500 114[4] No FP No S
<br /> 9/27/2000 4046 -2581 E NE 1,190 531 202 843 2,140 4,500[4] No FP,No S
<br /> 10/19/2000 4025 -2560 ENE, NA NA NA NA NA NA Not observed
<br /> 12/20/2000 3833 -2368 E NE 14600151 704 111 741 2,870 2000 No FP No S
<br /> 3/16/2001 37 25 -2260 ENE 16,800[51 1,210 802 848 4,230 2,190[4) No FP No S
<br /> 6/21/2001 4002 -2537 NE 24 000[51 1 000 380 980 4 100 28,000[4] No FP,No S
<br /> 9/13/2001 4582 -31 17 E NE 38,000 2200 2200 2,100 8,800 4 500[4] No FP,No S
<br /> 12/11/2001 4305 -2840 NE 13 000 920 430 780 3,100 8 800[4] No FP No S
<br /> 3/14/2002 3999 2534 E-NE 6,800 620 120 420 1 500 4 700[4] No FP,No S
<br /> 6/19/2002 4230 2765 E-NE 12,000 430 320 310 1,200 17,000[4] No FP,No S
<br /> 9/12/2002 4918 -3453 E-NE 64,000 2,900 4 100 3 100 14,000 3 100 No FP,No S
<br /> 12/3/2002 4624 '1� -3159 E-NE 30,000 1,700 950 L500 5,700 3,100 No FP,No S
<br /> MW 2 9/25/1995 1549 5901 55 5-74 5 -4352 SE <50 <0 5 <0 5 <0 5 20 NA No FP No S
<br /> 10/23/1995 NM NM - NA NA NA NA NA NA Not observed
<br /> 12/22/1995 5476 -3927 E <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S
<br /> 2/16/1996 51 16 -3567 E <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S
<br /> 5/23/1996 4628 -3079 E <50 <0 5 <0 5 <0 5 <0 5 NA No FP No S
<br /> 9/19/]996 5453 -3904 NE <50 <0 5 <0 5 <0 5 <0 5 <3 0 No FP,No S
<br /> 11/27/1996 5167 -36 18 SE <50 <0 5 <0 5 <0 5 <0 5 <3 0 No FP,No S
<br /> 3/21/1997 43 16 -2767 SE <50 <0 5 <0 5 <0 5 <05 <3 0 No FP No S
<br /> K V5 BF AuC0w218aQnarwtyta QTR 0212186 GWMR 4Qo2
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