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

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TABLE 3 Page 50 of 66 GROUNDWATER DATA SHELL STOCKTON TERMINAL 3515 NAVY DRIVE,STOCKTON,CALIFORNIA WeIIID MTBE MTBE Depth to GW SPH Date TPHd TPHg B T E X 8020 8260 TBA DIPS ETBE TAME Ethanol Methanol Lead TOC Water Elea. Thickness DO (AWT) W) (Py/L) (Pg/L) (Pp/L) (PS/L) (l+g/W (Aeu (P8/L) (P&IL) (Pg/L) (P&V (Pg/L) (P7/L) (mg1L) (ft MSL) (ft TOC) (ft MSW (P (mg/L) MW-28 09/11/1995 130 310 18 44 8.0 52 - - - - - - 2.81 7.02 421 MW-28 11/13/1995 66 ND 0.57 ND ND ND - - - MW-28 03/20/19% 68 ND ND ND ND ND - - - - - - - 2.81 721 4.40 - - - - - MW-28 05/15/1996 73 ND ND ND ND ND - - 2.81 4.89 -2.08- - - - - - - - MW-28 08/12/1996 65ND ND - - - - - - - 2.81 5.53 -2.72 - - ND ND ND - - - 2.81 6.70 -3S9 MW-28 10/28/1996 85 ND ND ND ND ND - - _ - - - - - - - - MW-28 03/03/1997 68 ND ND ND ND ND - - - - - - - - 2.81 820 -5.39 - - MW-28 05/05/1997 72 - - - - - - - Z81 5.50 -2.69 - 60 <0.50 <0.50 <0.50 <0.50 - - - 281 6.70 -3.89 MW-28 08/18/1997 53 X50 0.78 0.51 <030 <050 - - - - - - - - - 281 8.05 -524 - MW-28 11/18/1997 51 <50 <0.50 <0.50 <0.50 <0.50 - - - - MW-28 03/24/1998 61 X50 - - - - - - - 2.81 729 4.48 - <0.50 <0.50 <0.50 <0.50 - - 2.81 4.70 -1.89 MW-28 06/02/1998 68.6 <50 <050 <0.50 <050 <0.50 - - - - MW-28 09/02/1998 77.8 <50 <0.50 <0.50 <0.50 <030 - - - - - 2.81 5.96 -315 - - MW-28 11/09/1998 87.6 <50 <0.50 <0.50 <050 <0.50 - - 2.81 6.86 4.05 - - MW-28 06/15/1999 103 <50.0 <0.500 <0.500 <0.500 <0.500 <2.50 - - - - - - 2.81 7.08 427 - - MW-28 09/14/1999 121 <50.0 <0.500 <0.500 <0.500 <0.500 <2.50 - 281 738 -4 281 6.53 4.57 - .72 - - MW-28 12/20/1999 <50.0 <50.0 <0.500 <0.500 <0.500 <0.500 <2So - - - - - MW-28(D) 12/20/1999 <50.0 <50.0 <0500 <0.500 <0.500 <0.500 <2.50 _ 2.81 757 - - - MW-28 02/24/2000 <50 <50.0 <0.500 <0.500 <0.500 <0.500 <230 - - - - - - - 2.81 - - - MW-28 04/27/2000 6 6 0.0 0.0 <0300 <0.500 <0.500 <0.500 <2.50 - - - - - - - - 2.81 4.32 -151 - - MW-28 08/10/2000 582 60.0 <0500 <0.500 <0.500 <0.500 112 _ _ - - - - 2.81 585 4.04 - - MW-28 11/02/2000 374 <50.0 <0.500 <0500 <0.500 <0500 <2.50 - - 2.81 7.46 4b5 - - MW-28 01/25/2001 <50.0 0.0 <0.500 <0.500 <0500 <0.500 <2.50 - - - 2.81 7°..,4 452 - 6 - MW-28 05/31/2001 60 60 <050 <050 <0.50 <0.50 - <0.50 6.0 <0.50 <0S0 <050 6.0 <5U 2'81 7.14 -4.33 - - MW-28 08/06/2001 <50 - 2.80 712 432 -60 <p.50 <0.50 <0.50 <0.50 - <0.50 6.0 <0.50 <0.50 <0.50 8.6 <50 2.80 7.50 470 MW-28 11/20/2001 60 60 <030 <050 <0.50 <20 - <050 <5.0 <0.50 <0.50 <0.50 6.0 60 _ MW-28 02/21/2002 60 - 2.80 7.86 -5.06 - <50 <0S0 <0.50 <0.50 <0.50 -6 O - - - <5.0 2.80 6.38 -3.58 MW-28 05/22/2002 0 60 <0.50 <0.50 <0.50 c0.50 - <0.55 0 - - - 6.0 _- MW-28 08/19/2002 290 <50 < . - - - 2.73 6.80 4.07 - 050 <0.50 <0.50 <2.0 - <0.50 - - <5.0 2.73 7.39 4.66 MW-28 11/20/2002 60 <50 <0.50 <0.50 <OS0 <z.0 <0.50 - MW-28 02/20/2003 <50 - - - - - - - 2.73 766 4.73 - <50 <0.50 <0.50 <0.50 <2.0 - <0.50 - 273 6.60 -3.87 MW-28 05/30/2003 200 60 <0.50 <0.50 <0.50 20 <0.50 - _ _ - - MW-28 08/13/2003 110d 60 <0.50 <0.50 <0.50 <1.0 - <0.50 2.73 7.12 4.39 - - MW-28 11/06/2003 <50 60 <0.50 <(I50 <0.50 <1.0 - 1.4 - 2.71 7.91 -5.17 - - MW-28 02/10/2004 83 <50 <0.50 <0.50 <0.50 <1.0 - <0.50 273 7.91 -5.18 - _ MW-28 05/20/2004 70 - - - - - - - 2.73 6.34 -3.61 - <50 <0.50 <0.50 <0S0 <1.0 - <0.50 273 7.05 4.32 MW-28 08/16/2004 54 60 <O.So <0.50 <0.50 <1.0 <0.50 - MW-28 11/29/2004 n 60 <0.50 <0.50 <oso <1.0 - <0,50 - - - - - - - 2.73 274 -5.01 - 0.1 MW-28 02/17/2005 59 60 <0.50 <0.50 <0.50 <0.50 - - - - - - - - - 2.69 727 -4.58 - 0.41/1.74 MW-28 05/12/2005 - - - - _ _ - - - - - 2.69 4.04 -1.35 - 1.3 MW-28 08/30/2016 50 - - - - - - - - - 2.69 6.24 -3.55 - <50 <0.50 <0.50 <0.50 <050 - MW-28 11/30/2005 - - - - - - - - - - - - - - - 2.69 724 4.55 - L9 MW-28 02/02/2006 60 60 <0.50 <0.50 <0.50 <1.0 - - - - - - - - - 2.69 7.65 -4.96 - - MW-28 05/30/2006 - - - - _ _ _ - - - - - - - 2.69 5.53 -284 - 1.8 MW-28 08/31/2006 100 60 <0.50 <0.50 <0.50 <0.50 - - 269 5.87 -3.18 - - aumrxan - - - - - - - - 2.69 7.06 437 - 0.3