ARCHIVED REPORTS_GROUNDWATER MONITORING AND REMEDIATION REPORT - 3RD AND 4TH QUARTERS 2011

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TABLE 3 Page 49 of 66, GROUNDWATER DATA SHELL STOCKTON TERMINAL 3515 NAVY DRIVE,STOCKTON,CALIFORNIA MTBE MTBE Depth to GW SPH Well ID Date TPHd TPHg B T E X 8020 8260 TBA DIPE ETBE TAME Ethanal Methanol Lead TOC Water Elev. Thickness DO (PSIL) (pg/L) (PO) (pg/L) ()49&) (pg/L) 6*L) (P&L) (pg/L) (pg/L) (00) (pg/L) (pg/L) (pglL) (mg/L) (ft MSL) (ft TOC) (ft MSL) (ft) (M&L) MW-27 11/18/1997 320 <50 <0.50 <0.50 <0.50 <0.50 - - - - - - - - - 3.72 7.34 -3.62 - - MW-27 03/24/1998 74 <50 <0.50 <0.50 <0.50 <0.50 - - - - - - - 3.72 2.81 0.91 - - MW-27 06/02/1998 <50 60 <0.50 <0.50 <0.50 <0.50 - - - - - - - - - 3.72 5.25 -1.53 - - MW-27 09/02/1998 Well inaccessible - - - - - - - - - - - - - 3.72 - - - - MW-27 11/09/1998 Well inaccessible - - - - - - - - - - - - - 3.72 - - - - MW-27 03/29/1999 Well inaccessible - - - - - - - - - - - - - 3.72 - - - - MW-27 06/15/1999 57.0 <50.0 <0.500 <0.500 <0500 <0.500 <250 - - - - - - - - 3.72 5.91 -2.19 - - MW-27 09/14/1999 1,030 1,300 44.5 3.15 <250 20.5 136 - - - - - - - - 3.72 8.31 -1.59 - - MW-27 12/20/1999 81.0 <50.0 <0.500 <0.500 <0.500 <0.500 250 - - - - - - - - 3.72 7.69 -3.97 - - MW-27 02/24/2000 <50 <50.0 <0.500 <0.500 <0.500 <0.500 <2.50 - - - - - - - - 3.72 3.93 -0.21 - - MW-27 04/27/2000 164 <50.0 <0.500 <0.500 <0.500 <0.500 <2.50 - - - - - - - - 3.72 5.80 -2.08 - - MW-27 08/10/2000 348 60.0 <0.500 <0.500 <0.500 <0.500 <2.50 - - - - - - 3.72 7.27 -3.55 - - MW-27 11/02/2000 2,260 4,900 122 <5.00 11.3 <5.00 <25.0 - - - - - - - - 3.72 8.08 -4.36 - - MW-27 01/25/2001 157 60.0 <0500 <0500 <0.5W <0.500 <2.50 - - - - - - - - 3.72 6.90 -3.18 - - MW-27 05/31/2001 220 <50 <0.50 <0.50 <0.50 <0.50 - <0.50 6.0 8.6 <0.50 <0.50 6.0 <50 - 3.08 6.89 -3.81 - - MW-27 08/06/2001 510 60 <0.50 <0.50 <0.50 <0.50 - <0.50 6.0 10 <0.50 <0.50 6.0 60 - 3.08 7A0 4.32 - - MW-27 11/20/2001 300 60 <050 <0.50 <0.50 <2.0 - <0.50 <5.0 8.2 <0.50 <0.50 6.0 60 - 3.08 7.55 4.47 - - MW-27 02/21/2002 60 60 <0.50 <0.50 <0.50 <0.50 - <0.50 <5.0 <0.5 - - - - - 3.08 5.83 -2.75 - - MW-27 05/22/2002 120 60 <030 <0.50 <0.50 <0.50 - <0.50 <5.0 3.4 - - - - - 3.04 6.51 -3.47 - - MW-27 08/19/2002 200 <50 <0.50 <0.50 <0.50 <2.0 - <0.50 <5.0 2.2 - - - - - 3.04 7.55 4.51 - - MW-27(D) 08/19/2002 150 60 <0.50 <0.50 <0.50 <2.0 - <0.50 <&O 3.0 <0.50 <0.50 <5.0 <50 - 3.04 - - - - MW-27 11/20/2002 110 60 <0.50 <0.50 <0.50 <2.0 - <0.50 - 3.9 <5.0 - - - - 3.04 7.28 4.24 - - MW-27 02/20/2003 100 <50 <0.50 <0.50 <0.50 Q.0 - <0.50 6.0 2.2 - - - - - 3.04 6.10 -3.06 - - MW-27 05/30/20M 250 60 <0.50 <0.50 <0.50 <2.0 - <0.50 <5.0 1.1 - - - - - 3.04 6.87 -3.83 - - MW-27 08/13/2003 220d 60 <0.50 <0.50 <0.50 Q.0 - <0.50 8.4 5.4 - - - - - 3.04 7.67 4.63 - - MW-27 11/06/2003 180d 60 <0.50 <0.50 <0.50 <1.0 <0.50 <5.0 3.4 - - - - - 3.04 7.70 4.66 - - MW-27 02/10/2004 130 <50 <0.50 <0.50 <0.50 <1.0 - <030 6.0 1.9 - - - - - 3.04 5.81 -2.77 - - MW-27 05/20/2004 60 <50 n <0.50 n <0.50 n <0.50 n <1.0 n - <030 n <5.0 n 0.5 n - - - - - 3.04 6.74 -3.70 - - MW-27 08/16/2004 54 60 <0.50 <0.50 <0.50 <1.0 - <0.50 <5.0 0.63 - - - - - 3.04 7.55 4.51 - 0.7 MW-27 11/29/2004 <50 <50 <0.50 <0.50 <0.50 <1.0 - <0.50 6.0 <030 - - - - - 3.04 6.99 -3.95 - 1.6/0.6 MW-27 02/17/2005 60 <50 <0.50 <0.50 <0.50 <0.50 - - - <0.50 - - - - - 3.04 3.62 -0.58 - 1.4 MW-27 05/12/2005 <50 <50 <0.50 <050 <0.50 <030 - - - <030 - - - 3.04 5.72 -2.68 - 2.3 MW-27 08/30/2005 60 60 <030 <0.50 <0.50 <0.50 - - - <0.50 - - - - - 3.04 715 4.11 - 1.9 MW-27 11/30/2005 <50 60 <0.50 <0.50 <030 <1.0 - - - 0.68 - - - - - 3.01 7.49 4.48 - 1.2 MW-27 02/02/2006 <50 n 60 n <0.50 n <0.50 n <0.50 n <1.0 n - - - <2.0 n - - - 3.01 4.72 -1.71 - 2.1 MW-27 05/30/2006 180 60 1.1 3.2 IA 2.6- - - - <2.0 - - - - - 3.01 5.09 -2.08 - 1.3 MW-27 08/31/2006 68 60 <0.50 <0.50 <0.50 <1.0 - - - <2.0 - - - 3.01 7.09 4.08 - 0.4 MW-27 11/16/2006 60 bb <50 0.31r <0.50 <0.50 Q.0 - - - Q.0 - - - 3.01 6.89 -3.88 - 0.4 MW-27 02/26/2007 66 bb 60 <0.50 <1.0 <0.50 <1.0 - - - <2.0 - - - 3.01 6.14 -3.13 - 0.8 MW-27 05/29/2007 85 bb 60 ee <0.50 0.25 r Q.0 <1.0 - - - <2.0 - - - - - 3.01 6.68 -3.67 - 1.3 MW-27 08/27/2007 190 dbb 60 ee <0.50 0.28 r <1.0 <1.0 - <1.0 - <2.0 - - - - - 3.01 7.48 4.47 - 13 MW-27 11/29/2007 <50 bb <50 ee <0.50 <030 <0.50 <0.50 - - - 0.34 r - - - - - 3.01 7.12 4.11 - 0.62 MW-27 02/22/2008 60 bb 60 ee <0.50 <1.0 1.6 2.99 r - <1.0 - <2.0 - - - - - 3.01 5.00 -1.99 - 3.57 MW-27 03/26/2008 Well destroyed - - - - - - - - - - - - - - ..nm