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Table 3 Historical Groundwater Analytical Data-Fuel Oxygenates and VOCs South Shore Parcels-Parcel 2A and Adjacent Areas West Weber Avenue and North Lincoln Street Stockton,California sec- Iso- p-Iso- 4-Iso- 1,2,4-Tri- 1,3,5-Tri- Methylene n-Butyl- tert-Butyl- Butyl- propyl- propyl- propyl- Naph- Propyl- n-Propyl- methyl- methyl- Other Sample Date DIPE EtBE TAME Methanol Ethanol chloride TCE 1,2-DCA Acetone benzene benzene benzene benzene toluene toluene thalene benzene benzene benzene benzene Chloroform VOCs` ID Sampled m/I m/I m/I m/I m/1 m/I m/I m/I m/I (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) A Zone Wells-Areas 2A/213 And Adjacent Properties(cont.) DPE-9(cont.) 1/24/11 Not sampled due to Sheen 4/18/11 Not sampled due to Sheen 7/18/11 Not sampled due to Sheen 10/17/11 Not sampled due to Sheen 1/17/12 Not sampled due to Sheen 4/16/12 Not sampled due to Sheen DPE-11 11/14/03 <0.0005 <0.0005 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- 0.0010 0.00072 0.0032 0.0078 <0.0005 --- <0.002 --- 0.0038 <0.0005 <0.0005 --- ND 2/19/04 <0.0005 <0.0005 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- <0.00081 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- <0.0008 <0.0005 <0.0005 --- ND 6/3/04 <0.0005 <0.0005 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- 0.0005 <0.0005 0.0016 0.0046 <0.0005 --- <0.0005 --- 0.0024 <0.0005 <0.0005 --- ND 9/9/04 <0.0005 <0.0005 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- <0.0005 <0.0005 <0.0005 <0.0005 <0.0005 --- <0.0005 --- <0.0005 <0.0005 <0.0005 --- ND 12/9/04 <0.0005 <0.0005 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- <0.0005 <0.0005 <0.0005 0.00054 <0.0005 --- <0.0005 --- <0.0005 <0.0005 <0.0005 0.0018 ND 2/24/05 <0.0005 <0.0005 <0.0005 <0.10 <0.05 <0.005 <0.0005 <0.0005 --- 0.0023 0.00052 0.0026 0.015 0.00076 --- 0.039 --- 0.012 0.001 0.00054 0.00480 ND' 8/24/05 Not sampled due to Sheen 11/14/05 Not sampled due to SPH 2/14/06 Not sampled due to SPH 5/15/06 Not sampled due to Sheen 8/14/06 Not sampled due to SPH 11/14/06 Not sampled due to Sheen 2/5/07 Not sampled due to Sheen 5/7/07 Not sampled due to Sheen 7/3/07 Not sampled due to Sheen 10/8/07 Not sampled due to Sheen 1/21/08 Not sampled due to Sheen 4/21/08 Not sampled due to Sheen 7/21/08 Not sampled due to Sheen 10/20/08 Not sampled due to Sheen 1/20/09 Not sampled due to Sheen 4/20/09 Not sampled due to Sheen 7/27/09 Not sampled due to Sheen 10/19/09 Not sampled due to Sheen 1/18/10 Not sampled due to Sheen 4/19/10 Not sampled due to Sheen 7/19/10 Not sampled due to Sheen 10/18/10 Not sampled due to Sheen 1/24/11 Not sampled due to Sheen 4/18/11 Not sampled due to Sheen 7/18/11 Not sampled due to Sheen 10/17/11 Not sampled due to Sheen 1/17/12 Not sampled due to Sheen 4/16/12 Not sampled due to Sheen DPE-12 11/14/03 <0.0005 <0.0005 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- 0.0068 <0.0010' 0.0091 0.017 <0.0005 --- 0.0097 --- 0.019 0.0015 <0.0005 --- ND 2/20/04 <0.0005 <0.0005 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- 0.0067 <0.0010' 0.0077 0.018 <0.0005 --- 0.0087 --- 0.019 0.002 0.00068 --- NO 6/3/04 <0.0005 <0.0005 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- 0.0025 0.00076 0.0043 0.012 <0.0005 --- 0.0069 --- 0.012 0.0013 <0.0005 --- ND 9/9/04 <0.0005 <0.0005 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- 0.0030 <0.0005 0.0042 0.014 <0.0005 --- 0.013 --- 0.013 0.0019 0.00053 --- ND 12/9/04 <0.0005 <0.0005 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- 0.0029 0.00072 0.0056 0.015 <0.0005 --- 0.0051 --- 0.0096 0.00091 <0.0005 --- ND 2/22/05 Not sampled due to SPH 8/24/05 Not sampled due to Sheen 11/14/05 Not sampled due to Sheen 2/14/06 Not sampled due to SPH 5/15/06 Not sampled due to SPH 8/14/06 Not sampled due to SPH 11/14/06 Not sampled due to Sheen 2/5/07 Not sampled due to Sheen 5/7/07 Not sampled due to SPH 7/3/07 Not sampled due to Sheen 10/8/07 <0.0005 <0.0005 <0.0005 <0.1 <0.05 <0.005 <0.0005 <0.0005 --- <0.0005 <0.0005 0.00075 0.0034 <0.0005 --- 0.0012 --- 0.002 <0.0005 <0.0005 --- ND 3,6.48 1/21/08 Not sampled due to SPH 4/21/08 Not sampled due to Sheen 7/21/08 Not sampled due to Sheen 10/20/08 Not sampled due to SPH 1/20/09 Not sampled due to SPH 4/20/09 Not sampled due to Sheen 7/27/09 Not sampled due to Sheen 10/19/09 Not sampled due to Sheen 1/18/10 Not sampled due to Sheen 4/19/10 Not sampled due to Sheen 7/19/10 Not sampled due to Sheen 10/18/10 Not sampled due to Sheen Stantec 20120924-Parcel2A(Tables 4,5,6,7)Historical GW Tables 3012-CL.xlsx Page 21 of 46