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Groundwater Monitoring Data
<br /> ARCO Service Station No 2130
<br /> 7906 North EI Dorado Street, Stockton, California
<br /> Page 2 of 6
<br /> We Elevation Static Water Groundwater Ethyl- Tota
<br /> Number Date Top of Casing Top of Screen Level Elevation TPHG Benzene Toluene benzene Xylene MTBE Observations
<br /> MW-2 10/06/92 15 19 6000 6538 -50 19 950 90 5 4 12 7 9 NA No FP,No S
<br /> MW-2 11/11/92 15 19 6000 6469 -4950 NA NA NA NA NA NA No FP,No S
<br /> MW-2 12/04/92 15 19 6000 6396 -4877 NA NA NA NA NA NA No FP,No S
<br /> MW-2 01/20/93 15 19 6000 6269 -4750 1,400 41 <2 5 24 6 4 NA No FP, No S
<br /> MW-2 03/22/93 15 19 6000 6079 -4560 NA NA NA NA NA NA No FP, No S
<br /> MW-2 04/06/93 15 19 6000 6027 -4508 1,000 7 1 <2 5 31 88 NA No FP,No S
<br /> MW-2 07/30/93 15 19 6000 6098 -4579 1,200 35 2 6 30 15 NA No FP,No S
<br /> MW-2 11/29/93 15 19 6000 6005 -4486 1,100 28 33 18 4 5 NA No FP,No S
<br /> MW-2 03/23/94 15 19 6000 55 14 -3995 1,200 14 77 6 9 5 2 NA No FP,No S
<br /> MW-2 06/22/94 15 19 6000 5522 -4003 1,200 54 15 13 5 8 NA No FP,No S
<br /> MW-2 09/28/94 15 19 6000 5906 -43 87 1,600 370 2 9 47 13 NA No FP, No S
<br /> MW-2 12/01/94 15 19 6000 58 00 -4281 220 21 <0 5 2 6 <0 5 NA No FP,No S
<br /> MW-2 02/28/95 15 19 6000 55 08 -39 89 110 <0 5 <0 5 <0 5 <0 5 NA No FP,No S
<br /> MW-2 05/19/95 15 19 6000 53 15 -3796 400 23 <0 5 2 1 <0 5 NA No FP, No S
<br /> MW-2 08/28/95 15 19 6000 5483 -3964 650 84 <1* 9 3 1 1 NA No FP,No S
<br /> MW-2 12/07/95 15 19 6000 5347 -3828 540 18 <1* 3 <1* NA No FP,No S
<br /> MW-2 02/05/96 15 19 6000 51 93 -3674 310 28 0 6 1 3 08 NA No FP,No S
<br /> MW-2 05/30/96 15 19 6000 4791 -32 72 510 31 10 5 9 1 3 <7** No FP, No S
<br /> MW-2 09/18/96 15 19 6000 51 80 -3661 920 150 <2 5* 22 3 5 <15* No FP,No S
<br /> MW-2 11/26/96 15 19 6000 4960 -3441 520 21 <0 5 2 7 0 6 7 No FP,No S
<br /> MW-2 03/24/97 15 19 6000 4450 -2931 <500*** <3** <3** <3** <3** <20** No FP,No S
<br /> MW-3 01/07/92 16 10 6000 63 05 -4704 2,100 41 <3 0 <3 0 57 NA No FP,No S
<br /> MW-3 02/24/92 16 10 6000 6237 -4663 NA NA NA NA NA NA No FP,No S
<br /> MW-3 03/31/92 16 10 6000 62 17 -46 16 NA NA NA NA NA NA No FP,No S
<br /> MW-3 04/21/92 16 10 6000 62 51 -4641 110 4 9 <0 5 <0 5 4 6 NA No FP,No S
<br /> MW-3 05/11/92 16 10 6000 63 17 -4707 NA NA NA NA NA NA No FP,No S
<br /> MW-3 06/23/92 16 10 6000 6326 -47 16 NA NA NA NA NA NA No FP, No S
<br /> MW-3 07/08/92 16 10 6000 6450 -4840 55 1 5 <0 5 <0 5 12 NA No FP,No S
<br /> MW-3 08/10/92 16 10 6000 6543 -4933 NA NA NA NA NA NA No FP,No S
<br /> MW-3 09/15/92 16 10 6000 6607 -4997 NA NA NA NA NA NA No FP,No S
<br /> MW-3 10/06/92 16 10 6000 6620 -50 10 300 5 8 <0 5 <0 5 1 8 NA No FP,No S
<br /> MW-3 11/11/92 16 10 6000 65 50 -4940 NA NA NA NA NA NA No FP,No S
<br /> MW-3 12/04/92 16 10 6000 6423 -48 15 NA NA NA NA NA NA No FP,No S
<br /> MW-3 01/20/93 16 10 6000 6345 -4735 420 6 5 0 7 <0 5 4 5 NA No FP, No S
<br /> MW-3 03/22/93 16 10 6000 6157 -4547 NA NA NA NA NA NA No FP,No S
<br /> 6000 NA No FP,No S
<br /> MW-3 04/06/93 1610 6000 6108 -4498 200 3 0 <0 5 <0 5 2 7 NA No FP, No S
<br /> MW-3 07/30/93 16 10 6000 61 82 -4572 89 1 5 <0 5 <0 5 <0 5 NA No FP,No S
<br /> MW-3 11/29/93 1610 6000 6083 4473 120 5 1 <0 5 <0 5 19 NA No FP,No S
<br /> N Ws108051114081041597MI As
<br /> Rt v 2 6!5197
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