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Table 3.1: Volatile Organic Compounds in Upper Aquifer Wells <br /> Second Quarter 2012 Site Status Report <br /> Former Nestle USA, Inc. Facility, Ripon, CA <br /> Sample Average PDB MRP Actual Sample cis-1,2- trans-1,2- Trichloro- Vinyl <br /> Well ID Method Depth (ft, bgs) Sampling Sampling Date Chloroform Dichloroethene Dichloroethene ethene Chloride Comments/Others <br /> Frequency Frequency <br /> USEPA Method 826013, micrograms per liter (pg/L) <br /> M-39A PDB 107.5 Quarterly Quarterl 01/13/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-39A PDB 107.5 Quarterly Quarterl 04/11/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-41A PDB 109.5 Quarterly Quarterl 01/11/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-41A PDB 109.5 Quarterly Quarterl 05/17/12 <1.0 2.4 <0.50 0.65 <0.50 <br /> M-42A PDB 106.5 Quarterly Quarterl 01/13/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-42A PDB 106.5 Quarterly Quarterl 04/10/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-44A PDB 102.5 Quarterly Quarterl 01/24/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-44A PDB 102.5 Quarterly Quarterl 04/10/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-45A PDB 100.5 Quarterly Quarterl 01/13/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-45A PDB 100.5 Quarterly Quarterl 04/11/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-46A PDB 52.5 Quarterly Quarterl 01/23/12 <1.0 <0.50 <0.50 11 <0.50 <br /> M-46A PDB 52.5 Quarterly I Quarterl 05/17/12 <1.0 <0.50 <0.50 7.1 <0.50 <br /> M-47A PDB 52.5 Quarterly Quarterly1 01/03/12 77 <0.50 <0.50 3.4 <0.50 1,1-DCA: 4.2; 1,1-DCE: 0.58; <br /> M-47A PDB 52.5 Quarterly Quarterl Y2 01/09/12 69 <0.50 <0.50 3.6 <0.50 1,1-DCA: 4.3; 1,1-DCE: 0.59; <br /> M-47A Duplicate 70 <0.50 <0.50 3.8 <0.50 1,1-DCA: 4.3; 1,1-DCE: 0.60; <br /> M-47A PDB 52.5 Quarterly Quarterly2 01/16/12 66 <0.50 <0.50 3.8 <0.50 1,1-DCA: 4.8; 1,1-DCE: 0.68; <br /> M-47A PDB 52.5 Quarterly Quarterl Y2 02/23/12 73 <0.50 <0.50 1.6 <0.50 1,1-DCA: 7.6; 1,1-DCE: 1.0; <br /> M-47A PDB 52.5 Quarterly Quarterl 05/17/12 110 <0.50 <0.50 2.1 <0.50 1,1-DCA: 5.1; 1,1-DCE: 0.62; <br /> M-48A PDB 52.5 Quarterly Quarterl 02/23/12 <1.0 <0.50 <0.50 0.71 <0.50 <br /> M-48A Duplicate 02/23/12 <1.0 <0.50 <0.50 0.70 <0.50 <br /> M-48A PDB 52.5 Quarterly Quarterl 05/17/12 1.1 <0.50 <0.50 <0.50 <0.50 <br /> M-49A PDB 52.5 Quarterly Quarterl Y2 01/03/12 <1.0 2.4 <0.50 160 <0.50 <br /> M-49A PDB 52.5 Quarterly Quarterl Y2 01/09/12 <1.0 2.3 <0.50 160 <0.50 <br /> M-49A PDB 52.5 Quarterly Quarterly2 01/16/12 <1.0 2.4 <0.50 160 <0.50 <br /> M-49A PDB 52.5 Quarterly Quarterly2 02/23/12 <1.0 2.7 <0.50 170 <0.50 <br /> M-49A PDB 52.5 Quarterly Quarterl 05/17/12 <1.0 2.8 <0.50 190 <0.50 <br /> M-50A PDB 62.5 Not Listed Quarterly2 01/03/12 <1.0 <0.50 <0.50 25 <0.50 <br /> M-50A Duplicate 01/03/12 <1.0 <0.50 <0.50 25 <0.50 <br /> M-50A PDB 62.5 Not Listed Quarterly2 01/09/12 <1.0 <0.50 <0.50 31 <0.50 <br /> M-50A PDB 62.5 Not Listed Quarterly2 01/16/12 <1.0 <0.50 <0.50 44 <0.50 <br /> M-50A Duplicate 01/16/12 <1.0 <0.50 <0.50 43 <0.50 <br /> M-50A PDB 62.5 Not Listed Quarterl Y2 02/23/12 <1.0 <0.50 <0.50 2.5 <0.50 <br /> M-50A PDB 62.5 Not Listed Quarterl 05/17/12 <1.0 <0.50 <0.50 3.2 <0.50 <br /> M-51 A PDB 55.5 Not Listed Quarterly2 01/03/12 79 <0.50 <0.50 2.2 <0.50 1,1-DCA: 0.89; <br /> M-51 A PDB 55.5 Not Listed Quarterl Y2 01/09/12 62 <0.50 <0.50 2.2 <0.50 1,1-DCA: 0.73; <br /> M-51 A PDB 55.5 Not Listed Quarterly2 01/16/12 55 <0.50 <0.50 2.2 <0.50 1,1-DCA: 0.67; <br /> M-51A PDB 55.5 Not Listed Quarterl Y2 02/23/12 42 <0.50 <0.50 1.3 <0.50 <br /> M-51A PDB 55.5 Not Listed Quarterl 05/17/12 32 <0.50 <0.50 1.5 <0.50 <br /> M-52B PDB 34.5 Not Listed Quarterl 01/24/12 <1.0 <0.50 <0.50 1.3 <0.50 <br /> IM-52B PDB 1 34.5 1 Not Listed I Quarterl 04/06/12 <1.0 <0.50 <0.50 2.4 <0.50 <br /> Page 3 of 4 <br />