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TABLE 1
<br /> GROUNDWATER MONITORING DATA
<br /> Former ARCO Service Station No. 548
<br /> 1612 Hammer Lane, Stockton,California
<br /> Well Elevation Static Top Elevation Groundwater
<br /> Sample of Top Water of of Flow Ethyl- Total
<br /> Number Date of Casing Level Screen Groundwater Direction TPHG Benzene Toluene benzene Xylenes MTBE [1] Observations
<br /> MW-2 (61) 2115/95 9.82 40.67 47.00 .-36.85 E <50 <0.5 <0.5 . 0.50 . <0.5 NA No FP,No S,No O
<br /> (61) 5/12/95 9.82 38.85 -29.03 E <50 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No 0
<br /> (61) 8/29/95 9.82 40.44 -30.62 E *<52 <0.5 <0.5 1.0 <0.5 NA No FP,No S,No O
<br /> (61) 1214/95 9.82 39.08 -29.26 E *<60 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No 0
<br /> 212/96 9.82 37.09 -27.27 E <50 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No 0
<br /> (61) 5/10/96 9.82 34.55 -24.73 E <50 <0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No 0
<br /> (61) 8/29/96 9.82 36.29 -26.47 E **<60 <0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No 0
<br /> (61) 11/20/96 9.82 35.25 -25.43 E <50 0.5 <0.5 <0,5 <0.5 <3 No FP,No S,No 0
<br /> (61) 3/19/97 9.82 31.52 -21.70 E-SE <50 0.6 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> 5/27/97 9.82 31.79 -2 .97 E-SE <50 1.2 <0.5 <0.5 <0.5 <3 No FP,No S,No 0
<br /> (60) 8/12/97 9.82 33.18 -23.36 E 52 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No 0
<br /> (61) 11/18/97 9.82 32.88 -23.06 E <50 2.6 1.4 0.65 1.5 <5 No FP,No S,No 0
<br /> (60) 2116/98 9.82 29.48 -19.66 SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No 0
<br /> (60) 6/23/98 [P] 9.82 26.98 -17.16 SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No 0
<br /> (60) 9/29/98 [P) 9.82 28.78 -18.96 E, <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No 0
<br /> (60) 12/30/98 [P] 9.82 26.53 -16.71 SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No 0
<br /> (60) 3/31/99 [P] 9.82 25.11 -15.29 E-SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (60) 6/28/99 [P] 9.82 26.25 -16.43 SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (60) 9/10/99 [P] 9.82 28.28 -18.46 E <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No 0
<br /> (60) 12/13/99 [P] 9.82 27.35 -17.53 E <50 <0.5 <0.5 <0.5 <0.5 3.48 No FP,No S,No 0
<br /> (60) 3/28/00 [P] 9.82 24.07 -14.25 SE <50 <0.5 <0.5 <0.5 <0.5 <2.5 No FP,No S,No 0
<br /> (61) 6/26/00 [P] 9.82 25.12 -15,.30 E <50 <0.5 <0.5 <0.5 <0.5 <2.0[2] No FP,No S,No 0
<br /> 9/28/00 [P] 9.82 27.68 -17.86 E-NE <50 <0.5 <0.5 <0.5 <0.5 <2.5 No FP,No S,No 0
<br /> 12/18/00 [P] 9.82 26.29 A6.47 E <50 <0.5 <0.5 X0.5 <0.5 <2[2] No FP,No S,No 0
<br /> 3114101 [P] 9.82 25.00 -15..18 E <50 <0.5 <0.5 <0.5 <0.5 <5.0 No FP,No S,No O
<br /> 6/19/01 [P] 9.82 25.88 -16.06 E <50 <0.5 <0.5 <0.5 <0.5 <2[2] No FP,No S,No 0
<br /> 9/11/01 [P] 9.82 28.41 -18.59 E <50 <0.5 <0.5 <0.5 <0.5 <2[2] No FP,No S,Yes O 11
<br /> 12/13/01 [P] 9.82 27.70 -17.88 E-NE <50 <0.50 <0.50 <0.50 <0.50 1.3[2] No FP,No S,Yes O
<br /> 3112/02 [P] 9.82 26.01 -16.19 E <50 <0.50 <0.50 <0.50 <0.50 1.6[2] No FP,No S,Yes 0
<br /> Arco 0548_Quarlerly_DamXLS
<br /> 2ofi0 Delta
<br />
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