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<br /> Table 4
<br /> Groundwater Elevation and Analytical Data ,
<br /> ARCO Station#548
<br /> 1612 West Hammer Lane
<br /> Stockton,California
<br /> Calc.
<br /> TOC Depth to GW TOTAL
<br /> P1 Elevation Water Elev. TPHg BENZENE TOLUENE ETHYLBENZENE XYLENES MTBEDO
<br /> Well No, Samolinq Date NP (ft MSL[ (ft BGS) (ft MSL) (pglL) (pgll-) (pglL) (pg1L) (pglL) (pg1L) (mg1L) Comments
<br /> MW-1 2!15!1995 10.36 41.19 30.83 59 2.1 2.5 1 3.3 NA No FP No S,No O,(56]
<br /> MW-1 5/1211995 1..36 39.33 -26.97 84 1 4.7 4.1 1.T 6.5 NA No FP,No S�Yes 0.[561
<br /> MW-1 8/29/1995 10.36 40.89 -30.53 190 8 5.8 4.7 18 NA No FP,No S,Yes O,-jJ
<br /> _ MW-1 12J411995 10.36 39.53 -29.17 78_ I 2.3_ 1,4 1,4 5.3 NA No FP,NoS,Yes 0,,j5J
<br /> MW-1 I 2/211996 10.36 37.57 -27.21 59 1-3.4 NA No FSo O5 P"
<br /> MW-1 5/1011996 10.36 35.04 -24.68 925.5 2.1 212 <3 No FP,No ,No D,1561
<br /> MW-1. 8/29/1996 10.36 36.77 -26.41 1004.2 .4_'_4 3.2 12 <3 Nc FP,Mo SNo n_ice
<br /> MW-1 11/2011996 10.36 35.75 -25.39 140 6 1.5 4.6 18 <3 No FP,No S,No 0,.j56]
<br /> MW-1 3/1911997 10.36 32.02 -21.66 230 11 2.2 6.4 20 <3 No FP,No S,No 0,[56]
<br /> MW-1 5/2711997 10.36 32.27 -21.91 300 18 1.6 10 25 <3 No FP No S,No 0,(56]
<br /> MW-1 8/1211997 10.36 33.64 -23.28 110 I 7 0.75 4.8 9,6 <5 No FP,No S.No O,f551^
<br /> MW-1 11/1811997 10.36 33.38 -23.02 180 15 1.3 10 14 <5 No FP No S,No O,1561
<br /> MW-1 211611998 10.36 30.03 1 -19.67 <50 I 1.9 2.8 0.74 2.7 <5 No FP No S,Yes O [571
<br /> MW-1 6/23/1998 P 10.36 27.48 -17.12 103 4.58 0.581 3.17 1.46 <5 No FP,No S.No O,1561
<br /> MW-1 9/29/1998 P 10.36 29.25 -18.89 151 12.4 <0.5 8.07 2.38 <5 No FP,No S,Yes O,[55
<br /> MW-1 12/30/1998 P 10.36 27,02 -16.66 61.9 3.72 <0 51.42 <D.5 <5 No-FP,No S,Na Q j55]
<br /> MW-1 3/31/1999 P 10.36 25.63 -15.27 <50 1.43 <0.5 0.662 <0.5 <5 No FP,No 5,No O,[55]
<br /> MW-1 6/28/1999 P 10.36 26.75 -16.39 252 24.5 <0.5 1 12.3 2.98 6-51 No FP No S,No O [55]
<br /> MW-1 9/10/1999 P 10.36 28.75 -18.39 199 13.9 <0.5 8.13 7.01 5.02 No FP,No S,No O,155]
<br /> MW-1 12113!1999 P 10.36 27.85 -17.49 <50 <0.5 <0.5 <0.5 <0.5 5.88 No FP,No S.No O, 55
<br /> MW-1 312812nn0 P 10.36 24.61 -14.25 109 3.29 <0.5 1.86 0.89 4.43 No FP.No S,No 0 1[61
<br /> MW-1 6/26/2000 P 19.36 25.60 -15.24 70.2 6.46 <0.5 1.46 0.916 <2.0[2]_ No FP,No S,No 0,1561
<br /> MW-1 9!2812000 P 10.36 28.14 1 -17.78 54.8 2.18 <0.5 1.11 <0.5 <2S No FP,No S,No O
<br /> MW-1 12!1812000 P 10.36 26.80 -16.44 <50 0.559 <0.6 <0.5 0.562 11.6[21 No FP No S.No O
<br /> MW-1 3/14/2001 P 10.36 25.37 -15.01 <50 0.892 1.43 <0.5 1.8 19 No FP,No S,No O
<br /> MW-1 6/19/2001 P 10.36 26.35 -15.99 <50 1.2 1.1 <0.5 0.73 8.8j21_ No FP,No S,No O
<br /> MW-1 9111!2001 P 10.36 28.85 -18.49 <50 1 <0.5 <0.5 <0.5 O.fi 15]1 No FP No S,No O
<br /> MW-1 12/13/2001 P 10.36 28.15 -17.79 540 43 160 13 76 1,900[2] No FP,No S,Yes 0
<br /> MW-1 3/12/2002 P 10.36 26.37 -16.03 60131 4,4 5.5 <0.50 4 1,100[2] No FP,No S,Yes O
<br /> MW-1 6/1712.002 P 10.35 27.45 -17.09 420(3 2.2_ 2.4 <0,50 1 770[21 FP,NoS No O
<br /> MW-1 941912002 P 10.36 30.29 -19.93 400 0,9 0.53 <0.5 <0.5 900 No FP,No S,No O
<br /> MW4 1214/2002 P 10.36 30.10 -19.74 <25D0I <25 <25 <25 <25 740 No FP,No S,No O
<br /> MW-1 3!312003 P 10.36 28.29 -17.93 <1000 <10 <10 <10 <10 530[2] 5.34
<br /> MW-1 6/312003 P 10.36 28.11 -17,75 <50 0.94 <0.5 <0.5 <0.5 320L] 3.97
<br /> MW-1 9/18/2003 P 10.336 31.63 -21.27 130 R <25 <25 <25 <25320f2�_ 1.61
<br /> MW-1 12/8/2003 P 10.36 31.56 -21.20 80 R <5 <5 <5 <5 250[21
<br /> MW-1 3111/2004 P 12.04 29.96 -17.92 60 <5 <5 <5 <5 200 J_ 1.49
<br /> MW-1 6111!2004 P 12.04 30.74 -18.70 56 <2.5 <2.5 <2.5 <2.5 110[2 6.1
<br /> MW-1 813/2004 P 12.04 32.18 -20.14 110 <1 <1 <1 <1 100[2 9.9
<br /> MW-1 12!2212004 P 12.04 31.45 -19.41 <100 UJ <0.5 <0.5 <0.5 0.95 49j2] 5.15
<br /> MW-1 3129/2005 P 12.04 28.95 -16.91 <50 <0.5 <0.5 <0.5 <0.5 2121 6.86
<br /> MW-1 6116/2005 P 12.04 28.39 -16.35 <50 <0.5 <0.5 <0.5 <0.5 <0.5[2] 2.28
<br /> MW-1 9/912005 P 12.04 30.57 -18.53 -5q <0.5 <0.5 <0.5 0.85 18[21 4.76
<br /> MW-1 12!712005 P 12.114 30.30 -18.26 <50 15 <0.5 <6.5 0.6 16[2]
<br /> MW-1 3722120116 P 12.04 27.86 -15.64 <50 0.88 0.57 <0.50 1.3 17[2] 5.99
<br /> I
<br /> l:1BP-ARC0104 BP Valley PortfoliDXW4 Tables106-01L548 Tabla 1-2-3-a Page 1 of 14 5/31/2006
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