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TABLE 2 <br /> GROUNDWATER ANALYTICAL RESULTS(TPH and BTEX)1 <br /> ALDEN PARK <br /> Tracy,California <br /> Concentrations reported inµg/L <br /> Date Ethyl- Total <br /> Wen ID Sampled TPHd TPHdsg TPHg Benzene Toluene benzene Xylenes <br /> SCREENING WQO 100 2 100 z 5 ' 0.15 3 42 ' 29 z 17 z <br /> LEVELS ESL 100 5 100 5 100 ' 1 6 40 5 30 5 20 5 <br /> 04/24/96 <500 NA <500 <0.2 <0.2 <0.3 <0.4 <br /> 04/03/97 240 80 <50 <0.5 <0.5 <0.5 <2 <br /> 07/09/97 NA 60 <50 <O.5 <0.5 <0.5 <2 <br /> 10/08/97 NA <50 <50 <0.5 <0.5 <0.5 <2 <br /> 01/30/98 NA 100 <50 _ <0.5 <0.5 <0.5 <1.5 <br /> 07/20/00 890 490 <50 <0.5 <0.5 <0.5 <0.5 <br /> 10/27/00 360 100 <50 <0.5 <0.5 <0.5 <0.5 <br /> 01/23/01 280 <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 /> 07/26/01 160 100/110 <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 /> MW-9 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 /> 11/25/02 110 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 03/11/03 <50 <50 NS NS NS NS NS <br /> 08/27/03 <50 NA NS NS NS NS NS <br /> 02/18/04 130 <50 NS NS NS NS NS <br /> 08/06/04 170 NA NS _ NS NS NS NS <br /> 08/06/04 D 180 NA NS_ NS NS NS NS <br /> 02/23/05 <50 NA NS NS NS NS NS <br /> 02/23/05 D <50 NA NS NS NS NS NS <br /> 08/18/05 <30 NA NS NS NS NS NS <br /> sz =- <br /> Page 7 of 16 <br /> From Suence to Soiuirons <br />