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TABLE 2 Summary of Groundwater Analytical Data - Shallow Wells JM Equipment 1245 W. Charter Way Stockton, California Project No. 507.2 Wells Date Benzene Toluene Ethyl Total TPH MtBE DIPE ETBE TAME TBA Ethanol Methanol 1,2 DCA EDB Benzene Xylenes Gasoline ug/L ug/L ugfL ugri- ugn- ug/L ug/L ug/L WI- ug/1. mg/I. mg/L ug/L ug/L MW-6 04/16/99 4.1 ND(<0.3) ND(<0.3) 0.59 120 ND(<5) ND(<5) ND(<5) ND(<5) ND(<50) JM-2 01/27/00 0.9 0.3 0.5 0.9 188 03/08/00 ND(<5) ND(<5) ND(<5) ND(<5) ND(<20) 06/16/00 0.8 ND(<0.3) 0.4 1 159 ND(<5) ND(<5) ND(<5) ND(<5) ND(<20) 09/26/00 2 0.4 ND(<0.3) 0.9 394 10 ND(<5) ND(<5) ND(<5) ND(<20) 01/05/01 2 2 0.5 1 308 9.7 ND(<5) ND(<5) ND(<5) ND(<20) 03/12/01 ND(<0.3) 23, 2013 ND(<0.3) 0.7 203 5.1 ND(<5) ND(<5) ND(<5) ND(<20) 06/01/01 ND(<0.3) ND(<0.3) ND(<0.3) ND(<0.6) 98 34 ND(<5) ND(<5) ND(<5) ND(<50) ND(<5) ND(<5) ND(<5) ND(<5) 09/17/01 ND(<0.3) ND(<0.3) ND(<0.3) ND(<0.6) 82 ND(<5) ND(<5) ND(<5) ND(<5) ND(<50) ND(<2) ND(<2) ND(<5) ND(<5) 12/04/04 (Not sampled this event due to flooding.) 02/26/02 ND(<0.3) ND(<0.3) ND(<0.3) 0.4 145 3.8 06/20/02 ND(<0.3) ND(<0.3) 0.4 0.7 185 5.5 09/16/02 0.4 ND(<0.3) 0.5 1.4 261 28.7 12/20/02 (Not sampled this event due to flooding.) 03/18/03 ND(<0.3) ND(<0.3) ND(<0.3) 0.4 255 25.6 06/24/03 0.3 ND(<0.3) 0.6 1.0 214 31.1 09/11/03 ND(<0.3) ND(<0.3) 0.5 1.3 228 50.9 12/12/03 ND(<0.3) ND(<0.3) 0.5 1.1 254 38.1 03/19/04 ND(<0.3) ND(<0.3) 0.4 0.7 154 15.3 06/04/04 ND(<0.3) 0.3 ND(<0.3) 0.8 190 37.1 08/25/04 0.4 0.4 0.6 1.3 360 53.4 12/29/04 (Not sampled this event due to flooding.) 02/17/05 (Not sampled this event due to flooding.) 05/27/05 ND(<0.3) ND(<0.3) ND(<0.3) 0.5 251 12.5 08/19/05 0.95 ND(<0.5) ND(<0.5) 0.58 200 35 11/18/05 1.4 ND(<0.5) ND(<0.5) 0.53 160 47 03/10/06 ND(<0.5) ND(<0.5) ND(<0.5) ND(<1) 127 24.4 05/31/06 ND(<0.5) ND(<0.5) ND(<0.5) ND(<1) 63.5 9.9 08/22/06 ND(<0.5) ND(<0.5) ND(<0.5) ND(<1) 87.3 13.0 12/01/06 ND(<0.5) ND(<0.5) ND(<0.5) ND(<1) 88.4 16.7 03/08/07 ND(<0.5) ND(<0.5) ND(<0.5) ND(<I) ND(<50) 5.9 05/24/07 ND(<0.5) ND(<0.5) ND(<0.5) ND(<1) 103 15.4 08/06/07 ND(<0.5) ND(<0.5) ND(<0.5) ND(<1) 142 26.5 12/03/07 ND(<0.5) ND(<0.5) ND(<0.5) 1.1 108 24.4 02/11/08 ND(<0.5) ND(<0.5) ND(<0.5) ND(<1) 74.0 7.6 05/13/08 1.4 ND(<0.5) ND(<0.5) ND(<I) 104 ND(<5) 08/06/08 ND(<0.5) ND(<0.5) ND(<0.5) ND(<1) 123 29.0 11/06/08 ND(<0.5) ND(<0.5) ND(<0.5) ND(<1) 119 19.7 06/25/09 2.1 ND(<1) ND(<1) ND(<2) 120 55.9 12/21/09 ND(<0.5) ND(<0.5) ND(<0.5) 3.7 156 48.1 06/07/10 2.0 ND(<0.5) ND(<0.5) ND(<I) 165 40.1 12/28/10 ND(<0.5) ND(<0.5) ND(<0.5) ND(el) 207 36.5 05/23/11 2.3 ND(<0.5) ND(<0.5) 1.4 134 39.4 09/29/11 1.4 2.5 0.6 1.1 95 45 10/17/11 Not Sampled 10/28/11 1.1 ND(<0.3) 0.6 0.77 130 30 11/28/11 0.97 ND(<0.3) ND(<0.3) 0.78 100 8 12/29/11 1.0 ND(<0.3) 0.5 0.76 170 32 01/27/12 0.90 ND(<0.3) 0.5 0.72 150 28 02/28/12 0.91 6.6 ND(<.30) 0.66 140 35 03/29/12 0.72 ND(<.30) ND(<.30) 0.51 140 29 04/16/12 Not Sam 'led 04/30/12 0.75 ND(<.30) ND(<.30) ND(<0.6) 83 34 05/31/12 1.00 ND(<.30) ND(<.30) ND(<0.6) 170 43 06/28/12 1.30 ND(<.30) ND(<.30) 0.87 160 35 07/30/12 0.78 ND(<.30) ND(<.30) ND(<0.6) 80 29 12/23/13 ND(<0.5) ND(<0.5) ND(<0.5) ND(<1) 140 38 03/21/14 Not Sampled 06/18/14 0.1 ND(<0.5) ND(<0.5) ND(<1) 94 31 ND(<0.5) I ND(<0.5) ND(<0.5) ND(<10) 09/16/14 Not Sampled 12/18/14 ND(<0.5) I ND(<0.5) I ND(<0.5) I ND(<1) I 160 I 37 I ND(<0.5) I ND(<0.5) I ND(<0.5) I ND(<10) I - I I I 03/26/15 Not Sampled 06/17/15 ND(<0.5) I ND(<0.5) I ND(<0.5) I ND(<1) I 140 I 53 I ND(<0.5) I ND(<0.5) I ND(<0.5) I ND(<10) I I I I 09/09/15 Not Sampled 12/22/15 Not Sampled 05/24/16 ND(<0.5) I ND(<0.5) I ND(<0.5) I ND(<I) I 150 I 37 I ND(<0.5) I ND(<0.5) I ND(<0.5) I ND(<10) I 1 1 I 09/29/16 Sampled ND(<0.5) ND(<0.5) ND(<0.5) Not Sampled 12/22/16 ND(<I) 96 26 ND(<0.5) ND(<0.5) ND(<0.5) ND(<10) 05/25/17 ND(<0.5) ND(<0.5) ND(<0.5) ND(<I) 86 27 ND(<0.5) ND(<0.5) ND(<0.5) ND(<10) 06/26/17 Not Sampled 12/12/17 ND(<0.5) I ND(<0.5) I ND(<0.5) I ND(<I) I 74 I 23 I ND(<0.5) I ND(<0.5) I ND(<0.5) I ND(<10) I I I I Ground Zero Analysis, Inc. 6 of 12 I S