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

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TABLE 3 Page 21 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 8010 8260 TBA DIPE ETRE TAME Ethanol Methanol Lead TOC Water Elea. Thickness DO (4g7L) (4g7L) (11871) (4871) (ANT) 6191L) (pg71) (11871) (PO) (Pei (40) (4871) WU (4g7L) (mg7L) (/t MSL) (ft TOC) (ftMSL) (/t) (ng7L) MW-11 02/22/2008 790 bb 1,000 ee 85 G5.0 G5.0 <5.0 - 230 620 <5.0 <5.0 <5.0 <500 <100 ee - 10.02 12.17 -2.15 - 3.4 MW-11 05/21/2008 - - - - - - - - - - - - - - - 10.02 12.37 -2.35 - - MW-11 08/28/2006 2,800 1,200 55 3.0 1.2 r 2.6 ff - 200 520 - - - - <100 ee - 10.02 13.00 -2.98 - 1.2 MW-11 11/06/2008 - - - - - - - - - - - - - 10.02 13.13 -3.11 - - MW-11 02/09/2009 - - - - - - - - - - - - - - - 10.02 12.61 -2.59 - 0.41 MW-11 02/10/2009 2,100 1,200 18 1.8 r 0.49 r 2.0 - 140 590 - - - - <100 ee <10.0&g 10.02 - - - - MW-11 05/07/2009 - - - - - - - - - - - - - - - 10.02 12.25 -2.23 - - MW-11 08/31/2009 2,300 1,700 32 2.9 0.50r 2.2 - 170 500 - - - - <100 ee - 10.02 12.98 -2.96 - - MW-11 11/12/2009 - - - - - - - - - - - - - 10.02 12.75 -2.73 - - MW-11 02/03/2010 - - - - - - - - - - - - - - - 10.02 12.11 -2.09 - - MW-11 02/10/2010 1,800 1,000 If 7.2 1.7 r 2.0 1.0 r - 160 450 - - - - 400 ee - 10.02 11.80 -1.78 - 0.37 MW-11 05/06/2010 - - - - - - - - - - - - - - - 10.02 11.45 -1.43 - - MW-11 08/30/2010 - - - - - - - - - - - - - - - 10.02 12.62 -2.60 - - MW-11 08/31/2010 2,500 2,900 If 320 4.9 1.2r 3.3 - 160 310 - - - - <100 ee - 10.02 - - - 131 MW-11 12/03/2010 - - - - - - - - - - - - - 10.02 12.67 -2.65 - - MW-11 02/18/2011 Unable to sample - - - - - - - - - - - - - 10.02 11.68 -1.66 - - MW-11 05/19/2011 - - - - - - - - - - - - - - - 10.02 8.69 1.33 - - MW-11 09/07/2011 - - - - - - - - - - - - - - - 11.42 10.14 1.28 - - MW-11 09/08/2011 1,300 1,600 48 2.5 0.89 2.0 - 100 110 - - - - <500 ee - 11.42 - - - 1.87 MW-11 12/061/2011 - - - - - - - - - - - - - - - 11.42 10.25 1.17 - - MW-12 08/01/1990 ND ND 65 ND 2.2 5.9 - - - - - - - - - - - MW-12 02/01/1991 1,900 $000 160 8.6 ND 11 - - - - - - - - - - - - MW-12 08/08/1991 1,900 860 100 4.4 ND ND - - - - - - - - - 11.76 15.18 -3.42 - - MW-12(D) 08/08/1991 2,100 2,000 150 ND ND ND - - - - - - - - - 11.76 - - - - MW-12 02/27/1992 2,500 1,700 110 ND ND 14 - - - - - - - - - 11.76 13.62 -1.86 - - MW-12 08/13/1992 2,600 1,400 59 ND ND 4.3 - - - - - - - - - 11.76 15.03 -3.27 - - MW-12 03/25/1993 2,200 980 160 ND 1.6 4.1 - - - - - - - 11.76 12.59 -0.83 - - MW-12 09/29/1993 2,500 2,000 120 19 14 25 - - - - - - - - - 11.76 14.63 -2.87 - - MW-12 03/24/1994 2,500 1,700 51 12 9.9 10 - - - - - - - - - 11.76 13.65 -1.89 - - MW-12 06/27/1994 2,900 2,000 68 10 ND 10 - - - - - - - - - 11.76 14.22 -2.46 - - MW-12 09/27/1994 1,900 1,200 40 ND ND 6.9 - - - - - - - 11.76 14.87 -3.11 - - MW-12 12/28/1994 2,400 910 35 ND ND 5.4 - - - - - - - - - 11.76 15.42 -3.66 - - MW-12 03/13/1995 2,300 770 55 ND ND 4.7 - - - - - - - - - 11.76 13.15 -1.39 - - MW-12 06/15/1995 3,000 2,000 190 5.0 ND 16 - - - - - - 11.76 13.90 -2.14 - - MW-12 09/12/1995 2,200 1,400 180 14 51 36 - - - - - - - - - 11.76 1453 -2.77 - - MW-12 11/13/1995 2,700 2,000 270 45 5.2 53 - - - - - - - - - 11.76 15.93 -4.17 MW-12 03/20/1996 2,300 1,200 160 4.7 3.0 14 - - - - - - - - - 11.76 10.85 0.91 - - MW-12 05/15/1996 2,100 1,600 ND 6.9 7.1 8.8 - - - - - - - 11.76 12.66 -0.90 MW-12 08/12/1996 2,800 1,600 200 ND ND 13 - - - - - - - - - 11.76 13.85 -2.09 - - MW-12 10/28/19% 2,900 2,100 200 21 4.1 25 - - - - - - - - - 11.76 15.20 -3.44 - - MW-12(D) 10/28/1996 2,600 1,900 200 22 12 39 - - - - - - - - - 11.76 - - - - MW-12 03/03/1997 3,000 1,700 130 6.1 4.9 21 - - - - - - - - - 11.76 11.90 -0.14 - - MW-12 05/05/1997 2,300 1,500 98 5.6 4.4 20 - - - - - - - - - 11.76 13.15 -1.39 - - MW-12(D) 05/05/1997 2,600 1,500 100 6.3 4.2 20 - - - - - - - 11.76 - - ca�mrzrpz�