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TABLE 3 <br /> GROUNDWATER ANALYTICAL RESULTS (PAHs)1,2,3 <br /> ALDEN PARK <br /> Tracy, California <br /> Concentrations reported in pg/L <br /> 4u <br /> y <br /> ett ca 4 0 0 0 0 0 p R <br /> Date <br /> Well ID SampledQ p U qu w w ti ti N Z a a <br /> SCREENING WQO 20 4 --- 2,100 5 0.04 6 0.0029 6 0.04 6 --- 0.04 6 0.4 6 0.0038 7 130 8 280 5 0.04 6 --- 28 5 17 9 --- 210 5 <br /> LEVEL ESL 20 10 30 11 0.73 11 0.027 11 0.014 11 0.029 11 0.10 11 0.029 12 0.35 11 0.0048 IZ 8 113.9 110.048 11 --- 2.1 11 17 12 4.6 11 2 11MW-5 04/23/02 D 0.3 <0.032 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 NS NS <0.1 <0.1 0.1 <br /> (cont) 07/24/02 0.1 <0.033 <0.1 <0.1 <0.1 <0.1 <0.1 <01 <0.1 <0.1 <0.1 <0.1 <0.1 NS NS <0.1 <0.1 <0.1 <br /> 07/24/02 D 0.2 <0.034 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 NS NS <0.1 <0.1 <0.1 <br /> 11/25/02 0.2 <0.035 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.8 <0.1 NS NS <0.1 0.2 <0.1 <br /> 11/25/02 D 0.2 <0.036 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.9 <01 NS NS 1.1 0.5 <0.1 <br /> _ - - <br /> 03/11/03 0.2 <0.037 ND ND ND ND ND ND ND ND ND 0.3 ND NS NS ND ND ND <br /> 03/11/03 D 0.2 <0.038 ND ND ND ND ND _ ND ND ND ND ND ND NS NS ND ND ND <br /> -- - <br /> 08/27/03 ND <0.039 ND ND ND ND ND ND ND ND ND ND ND NS NS ND ND ND <br /> 08/27/03 D <0.1 <0.040 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 NS NS <0.1 <0.1 <0.1 <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 /> 08/17/05 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 /> 05/08/07 Not sampled due to the presence of SPO; oleophilic sock placed in well <br /> 01/16/09 Not sampled due to the presence of SPO; oleophilic sock placed in well <br /> 01/07/10 Not sampled due to the presence of SPO;oleophilic sock placed in well f <br /> MW-6 Well not sampled due to the presence of SPO <br /> 04/25/96 ND ND ND ND ND ND ND ND ND ND ND ND ND NS NS ND ND ND <br /> 04/02/97 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS <br /> 07/08/97 ND ND ND ND ND ND ND ND 2.4 ND ND ND ND NS NS ND ND ND <br /> MW-7 10/07/97 ND ND ND ND ND ND ND ND ND ND ND ND ND NS NS ND ND ND <br /> 10/07/97 D ND ND ND ND ND ND ND ND ND ND ND ND ND NS NS ND ND ND <br /> 01/30/98 <0.1 <0.1 <0.1 <0.1 <01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 NS NS <0.1 <0.1 <0.1 <br /> 01/30/98 D <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 NS NS <01 <0.1 <0.1 <br /> 07/20/00 <0.1 <0.1 <0.1 <0.1 <0.1 I <0.1 1 <0.1 <0.1 <0.1 <0.1 <0.1 I <0.1 1 <0.1 NS NS <0.1 <0.1 <0.1 <br /> ® ZM as The Benham Companies,LLC <br /> A Wholly Owned Subsidiary <br /> Page 4 of 13 From Science to Solutions <br />