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TABLE 2 <br /> GROUNDWATER ANALYTICAL RESULTS-TPHg,TPHd,and BTEX <br /> Alden Park <br /> Tracy,California <br /> Concentrations reported in micrograms per liter(µg/L) <br /> Date TPHd with Ethyl- <br /> Well No. Sampled TPHg TPHd Silica Gel Benzene Toluene benzene Xylenes ` <br /> MW-12 07/08/97 <50 NA <50 <0.5 <0.5 <0.5 <2 <br /> (cont.) 10/08/97 <50 NA <50 <0.5 <0.5 <0.5 <2 <br /> 01/30/98 <50 NA <50 <0.5 <0.5 <0.5 <1.5 <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 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 05/30/01 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 07/26/01 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 10/30/01 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 01/31/02 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 04/23/02 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 07/24/02 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 11/25/02 <50 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 03/11/03 NA <50 <50 NS NS NS NS <br /> 08/26/03 NA <50 NA NS NS NS NS <br /> 02/18/04 NA <50 NA NS NS NS NS <br /> 08/05/04 NA <50 NA NS NS NS NS <br /> 02/23/05 NA <50 NA NS NS NS NS <br /> 08/17/05 NA <29 NA NS NS NS NS <br /> 02/16/06 NA <50 NA NS NS NS NS <br /> MW-13 04/23/96 <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 <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 NA <50 NA NS NS NS NS <br /> 02/18/04 NA <50 NA NS NS NS NS <br /> 08/05/04 NA <50 NA NS NS NS NS <br /> 02/23/05 NA <50 NA NS NS NS NS <br /> 08/17/05 NA <29 NA NS NS NS NS <br /> 02/16/06 NA <50 NA NS NS NS NS <br /> 02/16/06 D NA <50 NA NS NS NS NS <br /> r,gc6or8 <br />