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• <br /> TABLE 2 <br /> GROUNDWATER ANALYTICAL RESULTS-TPHg,TPHd',and BTEX <br /> Alden Park <br /> Tracy,California <br /> Concentrations reported in micrograms per liter(pg/L) <br /> Date TPHd with Ethyl- <br /> Well No. Sampled TPHg TPHd Silica Gel Benzene Toluene benzene Xylenes <br /> MW-14 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 /> 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 NA <50 NA NS NS NS NS <br /> 02/18/04 NA <50 NA NS NS NS NS <br /> 09/06/04 NA <50 NA NS NS NS NS <br /> 02/23/05 NA <50 NA NS NS NS NS <br /> 08/17/05 NA <50 NA NS NS NS NS <br /> 02/16/06 NA <50 NA NS NS NS NS <br /> MW-17 04/23/96 <500 <500 NA <0.2 <0.2 <03 <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 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 /> 08/18/05 NA <29 NA NS NS NS NS <br /> 02/16/06 NA <50 NA NS NS NS NS <br /> MW-19 04/03/97 200 660 230 <0.5 <0.5 <0.5 <2 <br /> (well destroyed in 04/03/97 D 140 1,200 480 NA NA NA NA <br /> 3/00) 07/09/97 130 NA 530 <0.5 <0.5 <0.5 <2 <br /> 10/08/97 60 NA 400 <0.5 <0.5 <0.5 <2 <br /> 01/30/98 <50 NA 100 <0.5 <0.5 <0.5 <1.5 <br /> Page 7 of 8 <br /> _.._ _...... _ _.._.. ......... ......,_.... .......... ....._._.. ._...._ __.... ._.._... ..._..,,.is <br />