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Table 2 <br /> Groundwater Elevation and Analytical Data(ARCO) <br /> ARCO Service Station#2133 <br /> 2906 West Benjamin Holt Drive <br /> Stockton,California <br /> Well Depth Product Groundwater Groundwater Ethyl. Total <br /> WellDate Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled Notes in,MSL) (ft,TOC) (n) (R,MSL) Change{R) lg <br /> (ugh u fl} Ig1l u I Jug/I) <br /> 1 (ug") (ugn) {mglL) <br /> 911111995 13.21 - -12.63 -1.92 5,600 110 6 340 270 •• » <br /> BHD-1 121511995 13.70 -- -13.12 •0,49 9,200 74 <10 470 410 -- -- <br /> (cont.) 3/1811996 9,38 - -8.80 4.32 4,200 99 26 360 320 - -- <br /> 6/1811996 9.50 -8.92 -0.12 5,500 82 -10 430 30D -100 - <br /> 912511996 11.80 -11.22 -2.30 4,600 75 5.5 280 160 <50 - <br /> 1214f1996 11.50 •- -10.92 0.30 4,500 83 11 350 220 <50 - <br /> 3/19/1997 P 7.02 -6.44 4A8 2,300 54 <10 19D 100 - 0.1 <br /> 615/1997 NP 8.38 - .7.80 -1.36 3,500 39 3 76 12 170 0.2 <br /> 8!1911997 NP 9.98 -- .9.40 -1.60 440 7.9 0.94 <0.5 <D.5 360 0.2 <br /> 1 1125/1 99 7 NP 10.42 - -9.a4 -0.44 1,300 2.8 0.85 7.9 2.8 220 -- <br /> 312011998 <br /> - <br /> 312011998 P 4,45 -- -3.87 5.97 490 34 3 37 24 210 5.4 <br /> 612411998 P 5.92 - -5.34 -1.47 5,500 37 <10 170 46 580 3-0 <br /> 911011998 NP 8.12 - •7.54 •2.20 - 349 3.19 <0.500 0.542 <0500 567 - <br /> 1211711998 P 7.70 -- -7.12 0.42 1,000 25.2 <1.0 109 36.8 627 311011999 P 6.55 -- -5.97 1.15 432 10.2 <0.500 1.59 17.3 263 2.3 <br /> 6/22J11999 NP 8.13 -7.55 -1.58 162 <0.5 <D.5 <0.5 <0.5 728 0.8 <br /> 9/1311999 NP 9.28 -8.70 -1.15 420 <0.5 <0.5 0.956 <0.5 1,410 1.2 <br /> 1 211 611 99 9 Well box inaccessible <br /> 3123/2000 P 4.65 -• -4.07 - 55.9 <0.5 <0.5 1.37 0.627 <2,5 0.9 <br /> 612112000 P 6.42 -5.84 -1.77 $9.5 1.33 <0.5 <D.5 -0.5 175 0.1 <br /> 911312000 NP 8.37 -7.79 -1.95 170 4.98 0.806 1.10 1.17 1,010 2.0 <br /> 12!1512000 P 7.93 -- -L35 0.44 <50.0 -0.500 <0.500 <D,500 <0.500 505 0.7 <br /> 3/2/2001 Well inaccessible <br /> 5/10/2001 P 5.83 - -5.25 - 101 0.788 -0.500 1.33 1.25 639 1.4 <br /> 8!22 a" P 8,63 -- -8.05 -2.80 -500 <5.0 -5.0 <5.0 <5.0 850 <br /> 12151200, P 8.08 - -7.50 0.55 <500 <5.0 <5.0 <5.0 <5.0 470 1.8 <br /> I 3112/2002 P 6.05 - -5.47 2.03 -500 -5.0 <5.0 <5.0 <5.0 430 0.9 <br /> 6/612002 P 7.03 - -6.45 -0.98 95' -0.50 <0.50 -0.50 <0.50 170 0.2 <br /> 912412002 P 8.92 -- -8,34 -1.89 5M.. 3.7 0.89 6.4 0.90 290 0.3 <br /> 12117/2002 P 7.88 - -7.28 1.06 72 <0.50 -0.50 <0.50 <0.50 78 - <br /> 311 812 00 3 P 7.08 - -6.50 0.78 69 <0.50 -0.50 -0.50 <9.50 97 1.0 <br /> 6/17/2003 P 7.33 -6.75 -0.25 -700 <1.0 <7.0 -1.D <1,0 250 D.0 <br /> 9124103 a P 9.08 -8.50 -1.75 -500 <5.0 <5.0 <5.0 <5.0 430 0.3 <br /> 12J11 812 00 3 P 8.63 - -8.05 0.45 89 <0.5 <0.5 <0,5 <0.5 41 - <br /> 3117/2004 P 6-57 - -5.99 2.06 <250 <2.5 <2.5 4.5 <2.5 76 - <br /> 6129120D4 9.22 - -6.64 -2.65 66 <0.50 -0.50 -0.50 <0.50 42 -- <br /> 912112004 9.28 -- -8.70 -0.06 620 2.9 -0.50 6.0 0.58 100 -- <br /> 1212812004 8.09 - -7.51 1.19 72 <0.50 -0,50 -0.50 <0.50 48 1.6 <br /> 3/7/2005 NM NM NM Not sampled <br /> BHD-2 8126/1986 0.73 <br /> 11/2811988 - <br /> 2/27/1989 - <br /> 513011989 - <br /> 8122!1969 - - _ _ _ -0.5 -0.5 <0.5 <0.5 <br /> 12/4/1989 - - <br /> 11411990 16.22 -15.49 <br /> 2!111990 - .. _ <br /> 2!1511990 -- <br /> 2/22/1990 - .. __ <br /> 318/1990 15.78 - -15.05 - -- <0.5 <0.5 <0.5 <0,5 <br /> 4/511990 15,B5 - -15.12 -0.07 -- _ _ <br /> 411911990 15.92 •• -15.19 -0.07 <br /> 5110/1990 16.57 - -15.64 -0.65 - <br /> 512411990 16.54 - .15.81 <br /> 6/5/1990 - -- _ _•- <br /> 611811990 16.63 -- -15.90 <br /> 7112!1990 17.03 - -16.30 -0,40 - <br /> 8/16/1990 17.21 - -16.48 -D.1B <br /> 9/17/1990 17.70 - -16.97 -0.49 - <0.5 -0.5 <0.5 <0.5 _ _- <br /> 10111/1990 17.78 -- -17.05 .0.08 - - __ <br /> 12/611990 17.63 -16.90 0.15 <br /> I:SBP-ARGO121331Ta bles5gwta bl es2133.xl s <br /> 19 of 24 <br />