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Table 1 D ® F Q
<br /> Page 2 of 4 i
<br /> Groundwater Monitoring Data ro
<br /> ARCO Service Station No . 548 , 1612 Hammer lane, Stockton, California
<br /> V
<br /> Well Elevation Static Top Elevation
<br /> Sample of Top Water of of Ethyl- Total O
<br /> Nwnber Uale of Casing Level Screen Groundwater TPHG Benzene Toluene benzene Xylenes MTBE Observations N
<br /> MW-2 (cont.) W
<br /> MW -2(61 ) 04/08/94 9. 82 40.41 -30 .59 <50 < 1 .5 < 1 . 5 < 1 .5 <2. 5 NA No FP, No S , O=N O
<br /> '0
<br /> MW-2 06/22/94 9.82 40.88 -31 .06 < 10 <0.3 <0.3 <0.3 <0.5 NA No FP, No S, O=NE D
<br /> MW-2(44) 09/23/94 9.82 43. 14 -33 ,32 <50 <0. 50 <0.5 <0.5 <0.5 NA No FP, No S , 0=N p
<br /> MW-2(47 ) 12/02/94 9.82 42.31 •32 .49 <50 <0. 5 <0.5 <0.5 <0.5 NA No IT , No S, O=NE O
<br /> MW-2(61 ) 02/15/95 9.82 40.67 -30.85 <50 <0. 5 <0.5 0.50 <0.5 NA No IT, No S , O=NE O
<br /> MW-2(61 ) 05/12/95 9.82 38.85 -29.03 <50 <0.5 <0.5 <0.5 <0.5 NA No FP. No S , No O
<br /> MW-2(61 ) 08129/95 9.82 40.44 -30-62 **<52 <0.5 <0.5 1 .0 <0.5 NA No FP. No S , No O
<br /> MW-2(61 ) 12AA/95 9.82 39.08 -29 .26 * *<60 <0.5 <0.5 <0.5 <0.5 NA No FP, No S , No 0
<br /> MW-2 02/02/96 9.82 37.09 -27.27 <50 <0.5 <0.5 <0.5 <0.5 NA No FP, No S , No 0
<br /> MW-2(61 ) 05/ 10/96 9.82 34.55 -24 .73 <50 <0-5 <0. 5 <0.5 <0. 5 <3 No FP, No S , No 0
<br /> A4W-2(61 ) 08/29/96 9.82 36.29 -26.47 ** *<60 <0. 5 <ILS <0.5 <0.5 <3 No FP, No S , No 0
<br /> MW-2(61 ) 11/20/96 9.82 35.25 -25.43 <50 0.5 <0.5 <0.5 <0.5 <3 No FP, No S , No 0
<br /> MW-3
<br /> W49-MW3 10/30/91 9.95 49.00 43 .00 -39 .05 <50 <0.50 <0.50 <0.50 <0.50 NA No FP, No S , No 0
<br /> MW-3(62) 03/ 18/92 9.95 45.78 -35 .83 <50 <0.50 <0. 50 <0.50 <0.50 NA No FP, No S , No 0
<br /> MW-3(62) 06/ 10/92 9.95 47 .47 -37 .52 60 IC50 <0.50 <0.50 <0.50 NA No FP, No S , No
<br /> MW-3(62) 09/04/92 9.95 49.22 -39 .27 * *<73 <0.50 <0. 50 <0.50 <0.50 NA No FP, No S . Yes 0
<br /> MW-3(62) 12/04/92 9.95 48. 30 -38 .35 **< 150 <0.50 <0. 50 <0.50 <0.50 NA No FP, No S , Yes 0 N
<br /> MW-3(62) 03/04/93 9.95 45.43 -35 .48 * *< 140 <0.5 <0. 5 <0.5 <0.7 NA No FP, No S , Yes C ~
<br /> MW-3(62) 06/07/93 9.95 43.75 -33 .80 * *< 150 <0.5 <0.5 <0.5 <0.5 NA No FP, No S , Yes O N
<br /> MW-3(62) 09/02/93 9.95 45.51 -35 .56 <50 <0. 5 <0.5 <0.5 <0.5 NA No FP, No S , Yes 0 ko
<br /> to
<br /> MW-3(62) 12/16/93 9.95 43.64 -33 -51 * ** 140 <0-5 <0.5 <0.5 <0.5 NA No FP, No S , No 0 0)
<br /> MW-3(40) 04/08/94 9.95 40.50 -30.55 330 27 16 2.5 17 NA No FP, No S , O=NE V
<br /> MW-3 06/22/94 9-95 40.82' -30.87 < 10 <0.5 <0. 5 <0.3 <0.5 NA No FP, No S , 0=N N
<br /> MW-3(44) 09/23/94 9.95 43.02 -33 .07 110 <0.5 <0.5 <0.5 <0.5 NA No FP, No S , 0=N
<br /> MW-3(47) 12/02/94 9.95 42.32 - 32 .37 <50 <0.5 <0. 5 <0.5 <0. 5 NA No FP, No S , 0=N
<br /> MW-3(62) 02/ 15/95 9.95 40.69 -30.74 ** * 84 <0.5 <0. 5 <0. 5 <0.5 NA No FP, No S , 0=N -
<br /> MW-3(62) 05/12/95 9.95 38.80 -28 .85 * * * too <0- 5 <0. 5 <0.5 <0.5 NA No, FP, No S, No 0
<br /> MW-3 (62) 08/29/95 9.95 40.27 -30.32 * *< 170 <0. 5 <0. 5 <0.5 <0. 5 NA No, FP, No S, No 0
<br /> MW-3(62) 12/04/95 9.95 39.06 -29. 11 * *< 150 <0.5 <0.5 <0.5 <0.5 NA No, FP, No S , No 0
<br /> MW-3 02/02/96 9.95 37. 10 -27 . 15 * *< 100 <0.5 <0.5 <0.5 <0.5 NA No, FP, No S , No
<br /> MW-3(62) 05/10/96 9.95 34.53 -24 .58 * **< 1 (X) <0.5 <0. 5 <0.5 <0.5 <3 No, FP, No S , No
<br /> MW-3(62) 08/29/96 9.95 36.21 -2626 * * *<90 <0. 5 <0.5 <0.5 <0.5 **<4 No, FP, No S , No 0 O
<br /> MW-3 62 11 /20/96 9.95 35.31 -25.36 * * *<90 <0.5 <0.5 <0.5 <0.5 <3 No, FP, No S No 0 W
<br /> . . ,. . , e -,, Winn n. 111097
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