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

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TABLE 3 Page 59 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 ELBE TAME Ethanol Methanol Lead TOC Water Elev. Thickness DO (482) (4821 (Y8,L) (482) (Yp/L) (482) (482) (YP/L) WIL) (4Yh) (Yg/L) (Yg/L) (Yg/L) (482) - (mp/L) (ft MSL) (ft TOC) (ft MSL) (ft) (mg/L) MW-36 08/27/2007 <50 bb <50 ee <0.50 <0.50 <0.50 <0.50 - <0.50 <10 0.088 r <0.50 <0.50 <50 <100 ee - 5.29 9.70 11.41 - 26 MW-36 11/29/2007 <50 bb <50 ee <0.50 <0.50 <0.50 <0.50 - <0.50 <10 0.59 <0.50 <0.50 <50 <100 ee - 5.29 9.74 14.45 - 1.3 MW-36(D) 11/29/2007 <50 bb <50 ee <0.50 <0.50 <0.50 <0.50 - <0.50 <10 0.58 <0.50 <0.50 58 <100 ee - 5.29 - - - - MW-36 02/22/2008 <50 bb <50 ee <0.50 <0.50 <0.50 <0.50 - <0.50 <10 <0.50 <0.50 <0.50 <50 <100 ee - 5.29 7.92 -2.63 - 1.8 MW-36 05/21/2008 <50 <50 <0.50 <1.0 <1.0 <1.0 - <1.0 6.7r Q.0 <2.0 <2.0 <100 <100 ee - 5.29 9.24 -3.95 - 0.81 MW-36 08/28/2008 <50 <50 <0.50 <1.0 <7.0 <.0 - <1.0 <10 <2.0 <2.0 <2.0 69 r 600 ee - 5.29 9.70 14.41 - 4.19 MW-36 11/06/2008 110 21 rff <0.50 <1.0 <1.0 <1.0 - <1.0 <10 <2.0 <2.0 <2.0 <100 <100 ee - 5.29 9.48 -4.19 - - MW-36(D) 11/06/2008 63 16 r,B <0.50 <1.0 <.0 <L0 - <1.0 <10 <2.0 <20 20 <100 <100 ee - 5.29 - - - - MW-36 02/09/2009 <50 16 r <0.50 <.0 <.0 <3.0 - <1.0 86 <2.0 <2.0 20 80 r <100 ee <10.0 gg 529 8.91 -3.62 - 0.80 MW-36 05/07/2009 <50 <50 <0.50 <.0 <1.0 <1.0 - <1.0 <0 20 <2.0 <2.0 <100 <100 ee - 5.29 8.75 -3.46 - 0.89 MW-36 08/31/2009 <50 <50, <0.50 <.0 <1.0 <I.0 - <1.0 3.9 r <20 <2.0 <2.0 <100 <0 ee - 5.29 9.60 14.31 - 125 MW-36(D) 08/31/2009 <50 <50 <0.50 <.0 <.0 <.0 - <1.0 3.7 r <2.0 <2.0 <2.0 <100 <100 ee - 5.29 - - - - MW-36 11/12/2009 <50 <50 <0.50 <.0 <3.0 <1.0 - <I.0 <10 <2.0 <2.0 <2.0 <100 <100 ee - 529 9,17 -4.18 - 1.12 MW-36 02/03/2010 <50 28r <0.50 <.0 <1.0 <1.0 - <1.0 <10 <2.0 <2.0 <2.0 <300 <100 ee - 5.29 8.20 -2.91 - 1.03 MW-36(D) 02/03/2010 <50 36 r <0.50 <1.0 <.0 <1.0 - <1.0 <10 <2.0 <2.0 <2.0 <100 <100 ee - 5.29 - - . - - MW-36 05/06/2010 <50 <50 <0.50 <LO <1.0 <1.0 - <1.0 6.8r <2.0 <2.0 <20 <100 <100 ee - 5.29 8.25 -2.96 - 1.77 MW-36 08/30/2010 <50 <50 <0.50 <1.0 <3.0 <1.0 - <1.0 <0 <2.0 <2.0 <2.0 <100 <100 ee - 5.29 9.58 4.29 - 1.54 MW-36 12/03/2010 <50 <50 <030 <1.0 <.0 <1.0 - <.0 <10 <2.0 <2.0 <2.0 <100 <100 ee - 5.29 9.09 -3.80 - 1.90 MW-36 02/18/2011 <55 <50 <0.50 <0.50 <0.50 <.0 - <3.0 <10 <.0 <1.0 <1.0 <150 <500 ee - 5.29 8.00 -271 - 1.03 MW-36 05/19/2011 <49 <50 <0.50 <0.50 <0.50 <.0 - <1.0 <10 <1.0 <3.0 <1.0 <150 <50 ee - 5.29 8.10 -2.81 - 1.84 MW-36 09/07/2011 - - - - - - - - - - - - - - - 8.23 9.30 -1.07 - - MW-36 09/08/2011 <48 <50 <0.50 <0.50 <0.50 <.0 - <.0 <0 <.0 <.0 <.0 <150 <SOO ee - 8.23 - - - 1.13 MW-36 12/06/2011 <47.2 <50 <0.500 <0.500 <0.500 <0.500 - <0.500 <10.0 <0.500 <0.500 <0.500 <50.0 <10.0 ee - 8.23 9.57 -1.34 - 1.68 MW-37 04/78/2008 - - - - - - - - - - - - - - - - 9.96 - - - MW-37 04/29/2008 790 2,000 110 2.6r 2.3r 4.2r - 100 2,700 34 420 <20 - - - - 9.96 - - - MW-37 05/21/2008 400 2,400 190 11 15 76 - 190 1,300 45 <10 <10 - - - - 10.36 - - 6.1 MW-37 08/28/2008 99d 3,40 650 7.2 46 20.3 - 550 1,500 27 <10 <10 - - - - 10.55 - - 1.34 MW-37 11/06/208 850d 2,600 If 290 5.0r 8.6 13.7r - 250 1,200 32 <10 <10 - - - - 10.35 - - - MW-37 02/09/209 - - - - - - - - - - - - - - - - 9.76 - - 0.21 MW-37 02/10/2009 540 1,600 170 3.4r 1.6r 8.6 - 160 1,200 28 <10 <10 - - - - - - - - MW-37 05/07/2009 800 d 6,70 1,400 12 r 40 20 r - 1,400 2,400 20 r <40 <40 - - - - 9.76 - - 0.56 MW-37 08/31/2009 70d 2,60 210 4Ar <5.0 7.3 - 310 1,700 31 <10 <0 - - - - 10.41 - - 1.54 MW-37 11/12/209 - - - - - - - - - - - - - - - - 10.40 - - 0.57 MW-37 11/13/2009 650d 2,700 220 5.2 1.8r 9.6 - 260 2,200 28 <10 <10 - - - - - - - - MW-37 02/03/2010 860d 2,70 140 4.6r 1.6r 7.5 - 260 2,100 40 <10 <10 - - - - 9.60 - - 0.32 MW-37 05/06/2010 970d 2,10 230 4.7r 3.5r 6.4 - 390 2,800 44 <10 <0 - - - - 8.96 - - 0.59 MW-37 08/30/2010 - - - - - - - - - - - - - - 10.34 - - - MW-37 08/31/2010 610d 3,1001f 190 6.4 5.0 11 - 390 3,000 46 <10 <10 - - - - - - - 0.61 MW-37 12/03/2010 2,80 1,100 hb 190 8.3 2.9r 15 - 270 2,100 42 <10 <10 - - - - 9.81 - - 0.66 MW-37 02/18/2011 850p 11800 130 6.3 2.5 11 - 30 2,000 35 <4.0 <4.0 - - - - 9.08 - - 028 MW-37 05/19/2011 - - - - - - - - - - - - - - - - 8.85 - - - MW-37 05/20/2011 1,200 1,30 170 5.6 6.0 9.2 - 300 1,600 17 <5.0 <5.0 - - - - - - - 0.69 MW-37 09/07/2011 - - - - - - - - - - - - - - - 9.98 10.00 -0.02 - - MW-37 09/09/2011 1,40 3,700 320 13 7.3 28 - 590 3,000 57 <5.0 1.6r - - - 9.98 - - - 1.18 rxnvmsrw