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Table 9 <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 msl) (pg/L) (pg/L) (gg1L) WIL) (pg1L) (pg1L) (pg/L) (mgIL) Comments <br /> MW-8 08/05/2004 P 4341 2440 1901 <50 — <0 50 <0 50 <0 50 <0 50 <0 50* 26 <br /> 11/12/2004 P 4341 2301 2040 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50* 302 <br /> 02J1 1/20051 P 1 4341 2210 1 2131 1 <50 1 -- I <0 50 1 <0 50 1 <0 50 1 <0 50 1 <0 50* 3 5 <br /> MW-9 2/15/2001 — .4369 2080 2289 <50 -- <05 <05 <0 5 <0 5 <25 — <br /> 6/1/2001 — 43 69 21 18 2251 <50 -- <05 <0 5 <0 5 <0 5 <2 5 — <br /> 9/11/2001 — 4369 2241 2128 <50 -- <0 5 <05 <0 5 <0 5 <2 5 14 <br /> 12/20/2001 -- 4369 2223 2146 <50 -- <05 <05 <0 5 <0 5 <2 5/<2 0* 21 <br /> 3/20/2002 -- 4369 2098 2271 <50 — <05 <05 <05 <0 5 <2-5/<G 5* 21 <br /> 6/20/2002 P 4369 2192 2177 <50 -- <05 <0 5 <05 <0 5 <0 50* 1 8 <br /> 9/24/2002 P 4369 2252 2117 <50 — <05 <05 <0 5 <0 5 <0 5* NA <br /> 11/27/2002 P 4369 2190 2179 <50 — <05 <0 5 <05 <0 5 <0 5* 35 <br /> 02117/2003 NP 4369 2204 2165 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50* 31 <br /> 04/28/2003 P 4369 2219 2150 <50 — <0 50 <0 50 <0 50 <0 50 <0 50* 37 <br /> 07128!2003 P 4369 2312 20 57 <50 — <0 50 <0 50 <0 50 <0 50 <0 50* 36 <br /> 11/26/2003 P 4369 2316 2053 <50 — <0 50 <0 50 <0 50 <0 50 <0 50* 3 0 <br /> 02/16/2004 P 4369 2353 2016 <50 — <0 50 <0 50 <0 50 <0 50 <0 50* 25 <br /> 03111/2004 P 43 69 2300 2069 -- — -- — -- -- -- — <br /> 05/26/2004 P 4369 2361 2008 <50 — <0 50 <0 50 <0 50 <050 <0 50* 2 9 <br /> 08/05/2004 P 4369 2473 1896 <50 — <0 50 <0 50 <0 50 <0 50 <0 50* 28 <br /> 11/12/2004 P 4369 2335 2034 <50 — <0 50 <0 50 1 <0 50 1 <0 50 1 <0 50* 304 <br /> 02111120051 P 1 4369 1 22 44 1 2125 <50 I -- <0 50 <0 50 <0 50 <0 50 <0 50* 38 <br /> MW-10 2/15/2001 -- 4209 1902 2307 <50 — <0 5 <05 <0 5 <05 <2 5 -- <br /> 6/1/2001 — 4209 1940 2269 <50 -- <0 5 <0 5 <0 5 <05 <2 5 -- <br /> 9/1112001 — 4209 2097 21 12 <50 — <0 5 <0 5 <0 5 <05 <2 5 18 <br /> 12/20/2001 -- 4209 2032 2177 <50 — <0 5 <0 5 <0 5 <05 <2 5/<2 0* 27 <br /> 3/20/2002 — 4209 1921 2288 <50 — <0 5 <0 5 <0 5 <05 <2 5/<0 5 27 <br /> 6/20/2002 P 4209 2018 2191 <50 — <0 5 <0 5 <0 5 <05 <0 5* 2 6 <br /> 9/24/2002 P 4209 2081 2128 <50 — <0 5 <05 <0 5 <0 5 <0 5* NA <br /> 11/27/2002 P 4209 2024 21 85 <50 — 074 <0 5 <0 5 <05 <0 5* 47 <br /> 02/17/2003 NP 4209 2023 21 86 <50 — <0 50 <0 50 <0 50 <0 50 <0 50* 32 <br /> 04/28/2003 NP 4209 2040 2169 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50* 47 <br /> 07/28/2003 P 4209 21 30 2079 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50* 38 <br /> Report Date March 3,2005 Page 3 of 5 <br />