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i <br /> TABLE 4 <br /> GROUNDWATER ANALYTICAL RESULTS(TPH and BTEX)t'z'3 <br /> ALDENPARK <br /> Tracy,San Joaquin County,California <br /> Concentrations reported inµg/L I <br /> Date Ethyl- Total <br /> Well ID Sampled TPHd TPHdsg TPHg Benzene Toluene benzene Xylenes <br /> SCREENING WQO 100° 1001 5° 0.15 s 42° 29° 17 <br /> LEVELS ESL 100 100 e 100` 1 7 40 30 20 <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 /> 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 I <br /> 02/18/04 130 <50 NS NS NS NS NS <br /> 08/06/04 170 NA NS NS NS NS NS <br /> MW-9 08/06/04 D 180 NA NS NS NS NS NS <br /> (cont.) 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 /> 02/17/06 <50 NA NS NS NS NS NS <br /> 08/02/06 <50 NA NS NS NS NS NS <br /> 01/30/07 75 J <50 NS NS NS NS NS <br /> 01/30/08 <50 NA NS NS NS NS NS I <br /> 01/16/09 54 E <50 NS NS NS NS NS <br /> 01/06/10 85 <50 NS NS NS NS NS <br /> 03/08/11 <100 NA NS NS NS NS NS <br /> 03/20/12 <110 NA NS NS NS NS NS <br /> 04/17/13 <50 NA NS NS NS NS NS <br /> 03/28/14 <50 NA NS NS NS NS NS <br /> 04/23/96 <500 NA <500 <0.2 <0.2 <0.3 <0.4 I <br /> 04/02/97 <50 NA <50 <0.5 <0.5 <0.5 <2 <br /> 07/09/97 NA <50 <50 <0.5 <0.5 <0.5 <2 <br /> 10/08/97 NA <50 <50 <0.5 <0.5 <0.5 <2 <br /> 01/30/98 NA <50 <50 <0.5 <0.5 <0.5 <1.5 I <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 I <br /> MW-10 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 I <br /> 03/11/03 <50 <50 NS NS NS NS NS <br /> 08/26/03 <50 NA NS NS NS NS NS <br /> 02/18/04 <50 NA NS NS NS NS NS <br /> '00' leidos <br /> Page 5 of 10 <br /> I <br />