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Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No 6020 <br /> 1711 E Yosemite Avenue, Manteca, CA <br /> TOC Depth to Water Level Ethyl- Total <br /> Well Date PI Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msi) (/fg/L) (f►g/L) (pg/L) WWL) 4fg/L) (Efg/L) W91L) (mg/L) Comments <br /> MW-6 02/16/2004 P 43 65 2353 2012 <50 <2 5 <25 c2 5 <2 5 59' 1 6 <br /> 05/26/2004 P 43 65 2362 20 03 <50 <1 0 <1 0 <10 <1 0 74' 20 <br /> 08/05/2004 P 43 65 24 81 18 84 <50 - <0 5a <0 50 <0 50 <0 50 32' 1 7 <br /> 11/12/2004 P 43 65 23 35 20 30 c50 <0 50 <0 50 <0 50 <0 50 6 4'J 37 <br /> 02/11/2005 P 4365 2250 21 15 <50 <0 50 <0 50 c0 50 <0 50 9 9' 31 <br /> 05/31/2005 P 43 65 22 04 21 61 <50 <0 50 <0 50 <0 50 <0 50 3 7`J 3 6 <br /> 08/18/2005 P 43 65 22 60 2 i 05 c50 <0 50 <050 <050 <0 50 17* 4 1 <br /> 12/08/2005 P 43 65 21 02 22 63 c50 c0 50 <0 5Q <0 50 <0 5D 1 6' 1 2 <br /> 01/25/2006 P 43 65 1977 23$8 <50 -- <0 50 <D 50 -,050 -,0 - <br /> '50 <D 50` D 6 <br /> MW-7 2/15/2001 43 06 20 25 22 81 <50 -- <0 5 c0 5 c0 5 <05 <2 5 <br /> 6/1/2401 43 06 20 60 22 46 c50 <0 5 c0 5 <0 5 <0 5 <2 5 <br /> 9/11/2001 43 O6 21 86 21 20 <50 c0 5 c0 5 <0$ c0 5 <25 i 9 <br /> 12/20/2001 4306 -- - <br /> Well inaccessible <br /> 3/20/2002 43 06 20 40 22 66 <50 <0 5 <0 5 <0 5 <05 <2 5/c0 5' 1 8 <br /> 6/20/2002 P 43 06 21 34 21 72 c50 <0 5 <0 5 <0 5 <0 5 <0 5' 28 <br /> 9/24/2002 1 P 4306 2194 2112 <50 <0 5 <0 5 <0 5 <05EO <br /> " NA <br /> 11/27/2002 P 43 06 21 31 21 75 <50 7 8 45 1 8 ' 32 <br /> 02/17/2003 NP 4306 21 43 21 63 <50 <0 50 <0 50 <050 <0500` 26 <br /> 04/28/2003 P 4306 2161 2145 <54 c0 50 <0 50 c0 50 c0 500'07/28/2003 P 4306 2251 2055 <50 <0 50 <0 50 <0 50 <0 500' 1 3 7 <br /> 11/26/2003 P 4306 2260 2046 <50 <050 -<050 -450 <0 50 <D 50` 22 <br /> 0211 6120 0 4 P 43 06 2295 2011 <50 -<050 <0 50 -<050 -,050 c0 50' 2 7 <br /> 05/26/2004 P 43 06 22 98 20 08 <50 <0 50 <0 50 <0 50 <0 50 <0 50` 2 4 <br /> 08/05/2004 P 43 06 24 15 18 91 <50 -- <0 5a <D 6D c0 50 c0 50 <0 50' 31 <br /> 11/12/2004 P 43 06 22 66 2040 c50 <0 50 <0 50 <0 50 <0 50 <0 50' 2 09 <br /> 02/11/2005 P 43 06 21 85 21 21 <5C - <0 50 <0 50 <0 50 c0 50 <0 50' 4 1 <br /> 05/31/2005 P 43 Ofi 21 38 21 6$ <50 <0 50 <0 50 <0 50 <0 50 <D 50' 3 2 <br /> 0$/18/2005 P 4306 21 97 21 09M,5O <br /> <0 50 <0 50 <0 50 <0 50' 3 412/08/2005 P 4306 2D 42 22 PE <br /> 6401/25/2006 P 43 D6 19 15 23 91E <br /> MW-8 2/15/2001 43 41 20 42 2299 <50 c0 5 <0 5 <0 5 <0 5 <2 5 <br /> 6/1/2001 43 41 L 20 76 2265 <50 <05 <0 5 <0 5 <0 5 <2 5 <br /> Report Date February 15,1006 <br /> Page 2 of 7 <br />