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TABLE4 <br /> ' GROUNDWATER ANALYTICAL RESULTS(TPH and BTEX)""' <br /> ALDENPARK <br /> Tracy,San Joaquin County,California <br /> ' Concentrations reported in pg/L <br /> Date Ethyl- Total <br /> Well ID Sampled TPHd TPHds TPII Benzene Toluene benzene Xylenes <br /> ' SCREENING WQO 100° 1001 5° 0.15 5 42^ 29° 17° <br /> LEVELS ESL 100 6 100 v 100 6 1 7 40 30` 20' <br /> 02/18/04 <50 NA NA NS NS NS NS <br /> 08/05/04 <50 NA NA NS NS NS NS <br /> MW-13 02/23/05 <50 NA NA NS NS NS NS <br /> (cont.) 08/17/05 <29 NA NA NS NS NS NS <br /> 02/16/06 <50 NA NA NS NS NS NS <br /> ' 02/16/06 D <50 NA NA NS NS NS NS <br /> 04/22/96 <500 NA <500 <0.2 <0.2 <0.3 <0.4 <br /> 04/02/97 NS NS NS NS NS NS NS <br /> 07/07/97 NS NS NS NS NS NS NS <br /> ' 10/08/97 NS NS NS NS NS NS NS <br /> 01/30/98 NS NS NS NS NS NS NS <br /> 07/20/00 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> ' 10/17/00 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 01/23/01 NS NS NS NS NS NS NS <br /> 05/30/01 NS NS NS NS NS NS NS <br /> 03/11/03 NS NS NS NS NS NS NS <br /> 08/26/03 <50 NA NA NS NS NS NS <br /> 02/18/04 <50 NA NA NS NS NS NS <br /> 08/06/04 <50 NA NA NS NS NS NS <br /> MW-14 02/23/05 <50 NA NA NS NS NS NS <br /> 08/17/05 <50 NA NA NS NS NS NS <br /> 02/16/06 <50 NA NA NS NS NS NS <br /> 08/02/06 <50 NA NA NS NS NS NS <br /> ' 08/02/06 D <50 NA NA NS NS NS NS <br /> 01/31/07 <50 NA NA NS NS NS NS <br /> 01/31/08 <50 NA NS NS NS NS NS <br /> 01/15/09 <50 NA NS NS NS NS NS <br /> 01/05/10 77 <50 NS NS NS NS NS <br /> 03/08/11 <110 NA NS NS NS NS NS <br /> 03/20/12 <110 NA NS NS NS NS NS <br /> ' 03/20/12 D <110 NA NS NS NS NS NS <br /> 04/17/13 <50 NA NS NS NS NS NS <br /> 03/28/14 <50 NA NS NS NS NS NS <br /> MW-15 Well not sampled due to the presence of SPO <br /> MW-16 Well not sampled due to the presence of SPO <br /> 04/23/96 <500 NA <500 <0.2 <0.2 <0.3 <0.4 <br /> MW-17 04/02/97 NS NS NS NS NS NS NS <br /> ' (well properly 07/07/97 NS NS NS NS NS NS NS <br /> destroyed in 10/08/97 NS NS NS NS NS NS NS <br /> 4/06) 01/30/98 NS NS NS NS NS NS NS <br /> 1 07/20/00 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> Page 8 of 10 <br /> �` leidos <br />