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Table 9 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No 2093 <br /> 3425 Tracy Blvd, Tracy, CA <br /> TOC Depth to Water Level Ethyl. Total <br /> Well Date P/ Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes ME DO <br /> Number Sampled NP (feet ms]) (feet bgs) (feet msl) (pQ/L) (pg/L) (pg/L) (pglL) (pglL) (pg/L) WWI-) (mglL) Comments <br /> SMW-1 3/30/9998 NP 5024 1215 910 46 <0 5 <0 5 1 1 110 16 <br /> 6/25/1998 NP 5024 1270 — 692 — 0 666 <0 5 <0 5 <0 5 765 16 <br /> 9/11/1998 NP 5024 1290 -- <50 - <0 5 <0 5 <05 <0 5 290 17 <br /> 12/15/1998 - 5024 — — -- — .- .- — -- — — After this sampling,Well <br /> no longer monitored or <br /> sampled <br /> TB-1 12/19/2001 -- -- — -- <50 <0 50 <0 50 <0 50 1 <0 50 - — <br /> TEX-1 10/26/1995 - -- 1286 — <350 — <5 <0 5 <0 5 <0 5 <br /> 2/12/1996 -- -- 1090 — <br /> 4/18/1996 -- — 1135 — <50 -- <0 5 <0 5 <05 <0 5 -- - <br /> 7/18/1996 — — 1152 — — - _ — — _ _ <br /> 11/15/1996 — — 1230 — <br /> 3/14/1997 — - <br /> 6/4/1997 <br /> 8/11/1997 <br /> 11/17/1997 -- - — <br /> 3/30/1998 — — 1100 - <br /> 6/25/1998 -- — 100 <br /> 9/11/1998 <br /> 12/15/1998 — -- 1147 — - - -- — -- — 01 <br /> 5!1411999 — -- 1150 — -- — — - 48 <br /> 9/16/1999 -- — 1170 — — — -- — -- 24 <br /> 12/22/1999 — — 1156 — -- — -- - - -- 183 <br /> 2/29/2000 -- — 1098 - — -- __ _ _ _ 4 <br /> 6/7/2000 -- -- -- <br /> 9/25/2000 -- — <br /> 12/2112000 — — 1188 <br /> 3/27/2001 -- -- 1134 <br /> 6/20/2009 -- -- 1153 <br /> 911212001 — -- 1162 — -- — _ _ _ _ 16 <br /> 12/19/2001 -- -- 1142 <br /> 3/14/2002 — -- 1145 <br /> 6/28/2002 -- — 1167 <br /> 9/11/2002 -- — 1164 - <br /> Report Date May 6, 2004 Page 24 of 25 <br />