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Table 3.1: Volatile Organic Compounds,Analytical Results, Upper Aquifer Wells <br /> 2010 Annual Report <br /> Former Nestle USA, Inc. Facility <br /> Ripon, CA <br /> SampleLocation Sample Method Average PDB Sampling Sample Chloroform cis-1,2- trans-1,2- Trichloroethene Vinyl Chloride Comments/Others <br /> Depth(ft, bgs) Frequency Date Dichloroethene Dichloroethene <br /> USEPA Method 8021 and 524,micrograms per liter(Ng/L) <br /> 1,1-DCE:2.3;1,1-DCA: <br /> M-1113 Low-flow purge 38.5 Q 8/3/10 8 <1.0 <1.0 140 <0.50 14 <br /> duplicate;1,1-DCE:1.7; <br /> M-113 8/3/10 7.6 <0.50 <0.50 140 <0.50 1,1-DCA:13 <br /> 1,1-DCE:0.58;1,1- <br /> M-1B PDB 38.5 Q 10/21/10 2.6 <0.50 <0.50 130 <0.50 DCA:4.0 <br /> 1,1-DCE:0.61;1,1- <br /> M-1B 10/21/10 2.8 <0.50 <0.50 140 <0.50 DCA:4.3;Duplicate <br /> M-2A PDB 103.5 A 4/19/10 <1.0 <0.50 <0.50 0.83 <0.50 <br /> M-213 PDB 36.5 A 4/19/10 110 <0.50 <0.50 <0.50 <0.50 <br /> M-213 4/19/10 110 <0.50 <0.50 <0.50 <0.50 1,1-DCA:0.5;Duplicate <br /> M-3A PDB 99.5 A 4/28/10 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-313 PDB 35 A 4/28/10 <1.0 <0.50 <0.50 3.5 <0.50 <br /> M-413 PDB 38.5 A 4/28/10 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-5A PDB 107.5 Q 1/14/10 <1.0 <0.50 <0.50 0.96 <0.50 <br /> M-5A PDB 107.5 Q 4/12/10 <1.0 <0.50 <0.50 0.95 <0.50 <br /> M-5A PDB 107.5 Q 7/2/2010 <1.0 <0.50 <0.50 0.84 <0.50 <br /> M-5A 7/2/2010 <0.50 0.34J <0.50 0.96 <0.50 Duplicate <br /> M-5A PDB 107.5 Q 10/15/2010 <1.0 <0.50 <0.50 0.67 <0.50 <br /> M-513 PDB 38.5 A 4/12/10 <0.50 <0.50 <0.50 <0.50 <0.50 <br /> M-6A Low-flow purge 107.5 A 4/26/10 <1.0 16 <1.0 72 0.9 <br /> M-6A Low-flow purge 107.5 SA 8/2/10 <1.0 13 <1.0 65 0.62 <br /> M-6A PDB 107.5 SA 10/21/2010 <1.0 19 <0.50 86 1.4 <br /> M-613 PDB 40.5 A 4/19/10 <1.0 0.55 <0.50 67 <0.50 <br /> M-613 Low-flow purge 40.5 SA 8/2/2010 <5.0 <2.5 <2.5 98 <2.5 <br /> M-613 PDB 40.5 SA 10/21/2010 <1.0 0.56 <0.50 92 <0.50 <br /> M-7A PDB 111.5 A 4/19/10 <0.50 <0.50 <0.50 <0.50 <0.50 <br /> M-713 NS - B - - - - - - Sampled in odd- <br /> numbered years <br /> M-8A PDB 103.5 A 4/28/10 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-8A Low-flow purge 103.5 A 8/5/2010 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-8A PDB 103.5 M 11/23/10 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-8A PDB 103.5 M 12/21/10 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> M-813 PDB 38.5 A 4/28/10 <1.0 <0.50 <0.50 7.3 <0.50 <br /> M-813 Low-flow purge 38.5 A 8/5/2010 <1.0 <0.50 <0.50 8.2 <0.50 <br /> M-813 PDB 38.5 M 11/23/10 <1.0 <0.50 <0.50 9.7 <0.50 <br /> M-813 PDB 38.5 M 12/21/10 <1.0 <0.50 <0.50 4.5 <0.50 <br /> M-9A PDB 107.5 A 4/19/10 <1.0 36 <0.50 20 <0.50 <br /> M-913 PDB 29.5 A 4/19/10 <1.0 1.7 <0.50 1.5 <0.50 <br /> M-10A PDB 109.5 Q 1/14/10 <1.0 6.6 <0.50 300 <0.50 <br /> M-10A Low-flow pure 109.5 Q 4/26/10 <1.0 6 <1.0 300 <0.50 <br /> M-10A Low-flow purge 109.5 Q 8/3/10 <2.0 5.8 <2.0 310 <1.0 <br /> M-10A 8/3/10 <1.0 5.9 <0.50 320 <0.50 Duplicate <br /> M-10A PDB 109.5 Q 10/21/10 1 <1.0 1 5.9 1 <0.50 1 340 1 <0.50 <br /> Page 2 of 5 <br />