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TABLE 2 <br /> GROUNDWATER ANALYTICAL RESULTS(TPH and BTEX)l <br /> ALDEN PARK <br /> Tracy,California <br /> Concentrations reported in pg/L <br /> Date Ethyl- Total <br /> Well ID Sampled TPHd TPHdsg TPHg Benzene Toluene benzene Xylenes <br /> SCREENING WQO 100 100 2 5 2 0.15 3 42 2 29 2 17 2 <br /> LEVELS ESL 100 5 100 5 100 5 1 6 40 5 30 5 20 5 <br /> MW-5 08/27/03 15,000 200/1508 NS NS NS NS NS <br /> (cont.) 08/27/03 D 14,000 180/150 s NS NS NS NS NS <br /> 02/18/04 Not sampled due to the presence of SPO/sheen <br /> 08/05/04 Not sampled due to the presence of SPO;oleophilic sock placed in well <br /> 02/23/05 Not sampled due to the presence of SPO;oleophilic sock placed in well <br /> 08/18/05 Not sampled due to the presence of SPO;oleophilic sock placed in well <br /> 02/16/06 Not sampled due to the presence of SPO;oleophilic sock placed in well <br /> 08/01/06 Not sampled due to the presence of SPO;oleophilic sock placed in well <br /> 01/29/07 Not sampled due to the presence of SPO;oleophilic sock placed in well <br /> 02/01/08 INot sampled due to the presence of SPO;oleophilic sodic placed in well <br /> 01/15/09 INot sampled due to the presence of SPO;oleophilic sock placed in well <br /> MW-6 Well not sampled due to the presence of SPO <br /> 04/25/96 <500 NA <500 <0.2 <0.2 <0.3 <0.4 <br /> 04/02/97 NS NS NS NS NS NS NS <br /> 07/08/97 NA <50 <50 <0.5 <0.5 <0.5 <2 <br /> 10/07/97 NA <50 80 <0.5 <0.5 <0.5 <2 <br /> 10/07/97 D NA <50 80 <0.5 <0.5 <0.5 <2 <br /> 01/30/98 NA <50 <50 <0.5 <0.5 <0.5 <1.5 <br /> 01/30/98 D NA <50 60 <0.5 <0.5 <0.5 <1.5 <br /> 07/20/00 320 54 <50 <0.5 <0.5 <0.5 <0.5 <br /> 10/17/0_0_ 510 <50 <50 <0.5 <0.5 <br /> 01/23/01 NS NS �M- NS�- � NS NS NS <br /> 05/30/01 NS _ NS � NS _ NS NS NS ��- NS <br /> 04/23/02 200 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> Page 5 of 16 From Science to Solutions <br />