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<br /> • TAVE 1 /sage 1 of 6 '-
<br /> Groundwater Monitoring Data
<br /> ARCO Service Station No 2186
<br /> 3212 North Callfomia Street, Stockton, California
<br /> Elevation of Static Water[1] Screen Elevation of Total
<br /> Well Top of Casing Level Interval Groundwater Groundwater TPHg Benzene Toluene Ethylbenzene Xylenes MtBE[3]
<br /> Sample No Date (feet MSI) (feet bgs) (feet bp) (feet msl) Flow Direction Observations
<br /> MW-1 9/25/1995 1465 5805 45 6-74 7 -4340 SE 20 000 780 2000 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 <i 0[21 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 -3898 NE 10,000 480 570 520 700 <50* No FP No S
<br /> 11/27/1996 5077 3612 SE 19 000 700 1 800 820 2200 <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 3 500 <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 1,900 1,100 3,600 <1,000** No FP,No S
<br /> 2/17/1998 4432 2967 E-SE 19 000 680 990 980 3200 <100** No FP No S
<br /> 6/24/1998 3579 -21 14 E 505 275 <2 5 602 973 <25 No FP,No S
<br /> 9/21/1998 3935 -2470 E NE 18900 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-I(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 /> 6111/1999 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 /> 6/22/2000 35 13 -2048 E 14,700 675 144 744 2,500 114[41 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 E-N8 NA NA NA NA NA NA Not observed
<br /> 12/20/2000 3833 2368 E-NE 14,600[5] 704 111 741 2,870 2000 No FP,No S
<br /> 3/16/2001 3725 -2260 E-NE 16,800[5] 1 210 902 848 4,230 2,190[4] No FP,No S
<br /> 6/21/2001 4002 -2537 NE 24,000[5] 1 000 380 980 4,100 28,000[41 No FP No S
<br /> 9/13/2001 4582 -31 17 E NE 38,000 2,200 2,200 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[41 No FP,No S
<br /> 6/19/2002 4230 2765 E-NE 12,000 430 320 310 1200 17,000[4] No FP,No S
<br /> 9/12/2002 49 18 -3453 E-NE 64 000 2,900 4,100 3,100 14,000 3,100 No FP,No S
<br /> 12/312002 4624 -3159 E NE 30,000 1,700 950 1 500 5,700 3,100 No FP,No S
<br /> 3111!2003 4556 -3091 NE <5,000 360 <50 <50 <50 3,200 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 5116 -3567 E <50 <0 5 <0 5 <0 5 <0 5 NA No FP No S
<br /> 5123/1996 4628 -3079 E <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S
<br /> 9/19/1996 5453 -3904 NE <50 <0 5 <0 5 <0 5 <0 5 <3 0 No FP No S
<br /> 11/27/1996 5167 3618 SE <50 <0 5 <0 5 <0 5 <0 5 <3 0 No FP,No S
<br /> K V5 BP ARC0=1861QumW1y%1 QTR 0312]66 GWW 1 Q03
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