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TABLE 2 <br /> GROUNDWATER ANALYTICAL RESULTS-TPHg,TPHd',and BTEX <br /> Alden Park <br /> Tracy,California <br /> t <br /> Concentrations reported in micrograms per liter(µglL) <br /> i <br /> j Date TPIld with Ethyl- <br /> Well No. Sampled TPHg TPHd Silica Gel Benzene Toluene benzene Xylenes in <br /> MW-"JC 04/22/96 <500 <500 NA <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 /> 08/03/00 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 10/17/00 <50 75 <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 NS <50 NA NS NS NS NS <br /> 02/18/04 NS <50 NA NS NS NS NS <br /> 08/05/04 NS 59 NA NS NS NS NS <br /> 02/23/05 NS <50 NA NS NS NS NS <br /> 08/17/05 NS <29 NA NS NS NS NS <br /> 02/16/06 NS <50 NA NS NS NS NS <br /> MW-2 04/26/96 <500 <500 NA <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 Well contained insufficient water to purge and sample <br /> 02/18/04 Well contained insufficient water to purge and sample <br /> 08/05/04 Well contained insufficient water to purge and sample <br /> 02/23/05 NS 75 NA NS NS NS NS <br /> 08/18/05 NS <29 NA NS NS NS NS <br /> 02/16/06 NS <50 NA NS NS NS NS <br /> MW-4 04/22/96 <500 <500 NA <0.2 <0.2 <0.3 <0.4 <br /> 04/02/97 NS NS NS NS NS NS NS <br /> 07/08/97 <50 NA <50 <0.5 <0.5 <0.5 <2 <br /> 10/08/97 50 NA <50 <0.5 <0.5 <0.5 <2 <br /> Page I of 8 <br />