ARCHIVED REPORTS XR0000836 - Laserfiche WebLink

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Table 1 Groundwater Monitoring Data ARCO Service Station No 2186 3212 North California Street Stockton,California Elevationof Static Water[l] Topo Elevation of Total Well Top of Casing Level Screen[2] Groundwater Groundwater TPHG Benzene Toluene Ethylbenzene Xylenes MTBE[31 Sample No Date feet rust) (feet b s) (feet b s) (feet ms!) Flow Direction pg/L pg1L µg/L pg/L Itg/L pg/L Observations mW-1 09/25/95 1465 5805 4560 -4340 SE 20,000 780 2,000 690 4,100 NA No FP,No S mW-1 10/23/95 1465 5789 -4324 --- 20,000 590 1,100 600 3,600 NA No FP,No S MW-1 12/22/95 1465 5378 -39 13 E 730 35 <1 [2] 13 13 NA No FP,No S MW-1 02/16/96 1465 50 13 -3548 E 1,200 22 <1 [2] 51 24 NA No FP,No S MW-1 05/23/96 1465 45 35 -3070 F 760 9 1 22 5 <5 No FP,No S MW-1 09/19/96 1465 5363 -3899 NE 10,000 480 570 520 700 <50* No FP,No S MW-1 11/27/96 1465 5077 -36 12 SE 19,000 700 1,800 820 2,200 <100* No FP,No S MW-1 03/21/97 1465 4206 -2741 SE 5,300 260 210 200 440 <30* No FP,No S MW-1 05/22/97 1465 43 89 -2924 E-NE 25,000 920 1,900 1,400 3,500 <120* No FP,No S MW-1 08/20/97 1465 4983 -35 18 E-NE 31,600 1,000 2,800 1,300 4,000 <500** No FP,No S MW-I 11/20/97 1465 4907 -3442 E 24,000 830 1,900 1,100 3,600 <1,000** No FP,No S MW-1 02/17/98 1465 4432 -2967 E-SE 19,000 680 990 980 3,200 <100** No FP,No S MW-1 06/24/98 1465 3579 -21 14 E 505 275 <2 5 602 973 <25 No FP,No S MW-1 09/21/98 1465 3935 -2470 E-N$ 18,900 792 1,410 1,130 3,690 <125 No FP,No S MW-1 12/14/98 1465 3734 -2269 E-NE 13,800 613 449 896 2,800 <100 No FP,No S MW-1 (Discreet) 12!14/98 1465 3734 -2269 E-NE 7,170 424 161 527 848 <I00 No FP,No S MW-1 03/31/99 1465 34 14 -1949 N-NE 81 7 432 <0 5 <0 5 <0 5 <5 No FP,No S MW-1 06/11/99 1465 3422 -1957 E-NE 7,310 397 162 543 1,500 <50 No FP,No S MW-1 09/10/99 1465 3841 -2376 E-NE 22,800 941 1,180 1,410 4,450 2,590 No FP,No S MW-I 12/03/99 1465 3834 -2369 E 15,400 552 155 907 2,680 517 No FP,No S MW-1 04/03/00 1465 3500 -2035 NE 6,940 534 <20 518 1,260 334 No FP,No S MW-1 06/22/00 1465 35 13 -2048 E 14,700 675 144 744 2,500 114[4] No FP,No S MW-1 09/27/00 1465 4046 -2581 E-NE 1,190 531 202 843 2,140 4,500[4] No FP,No S MW-2 09/25/95 1549 5901 5550 -4352 SE <50 <0 5 <0 5 <0 5 20 NA No FP,No S MW-2 10/23/95 1549 NM NM --- NA NA NA NA NA NA NM MW-2 12/22/95 1549 5476 -3927 E <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No b MW-2 62/16/96 1549 51 16 -3567 E <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S MW-2 05/23/96 1549 4628 -3079 E <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S MW-2 09/19/96 1549 5453 -3904 NE <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S MW-2 11/27/96 1549 5167 -36 18 SE <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S MW-2 03/21/97 1549 43 16 -2767 SE <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S MW-2 05/22/97 1549 4481 -2932 E-NE <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S MW-2 08/20/97 1549 5071 -3522 E-NE. <50 <05 <0 5 <0 5 <0 5 <5 No FP,No S MW-2 11/20/97 1549 50 17 -3468 E <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S MW-2 02/17/98 1549 4530 -2981 E-SE <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S MW-2 06/24/98 1549 3669 -2120 E <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S MW-2 09/21/98 1549 4031 -2482 E-NE X50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S MW-2 12/14/98 1549 3828 -2279 E-NE <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S MW-2 03/31/99 1549 3524 -1975 N-NE <50 <0 5 0 781 <0 5 <0 5 <5 No FP,No S MW-2 06/11/99 1549 35 14 -1965 E-NE <50 <0 5 <0 5 <0 5 0 796 <5 No FP,No S MW-2 09/10/99 1549 3937 -23 88 E-NE <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S MW-2 12/03/99 1549 3933 -23 84 E <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S MW-2 04/03/00 1549 3590 -2041 NE <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S MW-2 06/22/00 1549 3608 -2059 E <50 <2 Q <2 216 <2[41 No FP,No S MW-2 09/27/00 1549 4138 -2589 E-NE <50 <0 5 <0 5 <0 5 <0 5 <2[4] No FP,No S PA V]LIOMhfyDocumrnssMC0Q 18aQTPLY5200052186Q30G Delta 1 of 3 11/29100 I �