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Appendix B: Historical Analytical Results for Volatile Organic Compounds <br /> 2010 Annual Report <br /> Former Nestle USA, Inc. Facility, Ripon, CA <br /> USEPA Method 8010,8021,8260 or 524 in micrograms per liter(ppb) <br /> Well Name/ Sampling Method Average PDB Current <br /> Location (Purge/PDB) Depth(ft bgs) Sampling Sample Date cis-1,2-DCE TCE VC Comments/Other Detected VOC's <br /> Fre uenc <br /> PDB 135.5 NR 01/30/2009 <0.5 <0.5 <0.5 <br /> PDB 135.5 NR 04/28/2009 <0.5 <0.5 <0.5 <br /> PDB 135.5 NR 07/28/2009 <0.5 <0.5 <0.5 <br /> PDB 135.5 NR 10/08/2009 <0.5 <0.5 <0.5 <br /> PDB 135.5 NR 01/18/2010 <0.50 <0.50 <0.50 <br /> PDB 135.5 NR 04/19/2010 <0.50 <0.50 <0.50 <br /> PDB 135.5 Q 07/08/2010 <0.50 <0.50 <0.50 <br /> PDB 135.5 Q 10/15/2010 <0.50 <0.50 <0.50 <br /> M45C PDB 125.5 NR 03/27/2007 <0.5 <0.5 <0.5 <br /> PDB 130.5 NR 03/27/2007 <0.5 <0.5 <0.5 <br /> PDB 130.5 NR 05/22/2007 <0.5 <0.5 <0.5 <br /> PDB 130.5 NR 07/03/2007 <0.5 <0.5 <0.5 <br /> - 10/10/2007 <0.5 <0.5 <0.5 DUP <br /> PDB 130.5 NR 10/10/2007 <0.5 <0.5 <0.5 <br /> PDB 130.5 NR 02/26/2008 <0.5 <0.5 <0.5 <br /> - 02/26/2008 <0.5 <0.5 <0.5 DUP <br /> PDB 130.5 NR 04/23/2008 <0.5 <0.5 <0.5 <br /> PDB 130.5 NR 07/21/2008 <0.5 <0.5 <0.5 <br /> PDB 130.5 NR 10/16/2008 <0.5 <0.5 <0.5 <br /> PDB 130.5 NR 01/26/2009 <0.5 <0.5 <0.5 <br /> PDB 130.5 NR 04/23/2009 <0.5 <0.5 <0.5 <br /> PDB 130.5 NR 07/28/2009 <0.5 <0.5 <0.5 <br /> PDB 130.5 NR 10/07/2009 <0.5 <0.5 <0.5 <br /> PDB 130.5 NR 01/14/2010 <0.50 <0.50 <0.50 <br /> PDB 130.5 NR 04/12/2010 <0.50 <0.50 <0.50 <br /> PDB 130.5 NR 07/02/2010 <0.50 <0.50 <0.50 <br /> PDB 130.5 Q 10/15/2010 <0.50 <0.50 <0.50 <br /> M-54C PDB 157.5 NR 01/18/2010 67 26 57 1,1-13CE:1.0;t-1,2-DCE:1.7; <br /> PDB 162.5 NR 01/18/2010 77 31 69 1,1-13CE:1.2;t-1,2-DCE:2.0; <br /> PDB 167.5 NR 01/18/2010 86 33 77 1,1-13CE:1.3;t-1,2-DCE:2.0; <br /> PDB 172.5 NR 01/18/2010 95 39 94 1,1-13CE:1.6;t-1,2-DCE:2.6; <br /> PDB 172.5 NR 04/19/2010 85 39 77 1,1-13CE:1.5;t-1,2-DCE:2.2; <br /> - 04/19/2010 90 39 76 1,1-13CE:1.4;t-1,2-DCE:2.5;DUP <br /> Low flow purge 172.5 NR 08/05/2010 98 40 160 t-1,2-DCE:2.7; <br /> PDB 172.5 NR 10/21/2010 77 33 68 t-1,2-DCE:2.1; 1,1-DCE:1.3 <br /> Lower Aquifer <br /> M-6D Purge - 03/01/1990 <0.5 <0.5 <0.5 <br /> Purge 07/01/1990 <0.5 <0.5 <0.5 <br /> Purge 09/01/1990 <0.5 <0.5 <0.5 <br /> Purge 12/01/1990 <0.5 <0.5 <0.5 <br /> Purge 04/01/1991 <0.5 <0.5 <0.5 <br /> Purge 04/01/1991 <0.5 0.7 <0.5 DUP <br /> Purge 07/01/1991 2.2 1.4 <0.5 <br /> Purge 10/01/1991 <0.5 <0.5 <0.5 Tol:1.2 <br /> Purge 10/01/1991 2.6 1.4 <0.5 DUP,Tol:3 <br /> Purge 03/01/1992 2.8 16 <0.5 <br /> Purge 06/01/1992 5.1 4.2 <0.5 <br /> Purge 10/01/1992 7.2 8.6 <0.5 <br /> Purge 10/01/1992 8.2 8.6 <0.5 DUP <br /> Purge 01/01/1993 2 2.9 <0.5 <br /> Purge 04/01/1993 10 14 <0.5 <br /> Purge 08/01/1993 5 5.4 <0.5 <br /> Purge 01/01/1994 7.1 9.1 <0.5 <br /> Purge 01/01/1994 0.8 1 <0.5 DUP <br /> Purge 05/01/1994 8.6 12 <0.5 <br /> Purge 05/01/1994 8.6 12 <0.5 DUP <br /> Purge 07/01/1994 9.8 13 <0.5 <br /> Purge 10/01/1994 9.3 13 <0.5 <br /> Purge 03/01/1995 2 3.3 <0.5 1,2-DCA:0.5,Iso-benzene:14,Tol:4.3 <br /> Purge 10/01/1995 0.6 1.7 <0.5 <br /> Purge 04/01/1996 <0.5 1.4 <0.5 <br /> Purge 10/01/1996 <0.5 <0.5 <0.5 <br /> Purge 04/01/1997 <0.5 1 <0.5 <br /> Purge 11/01/1997 <0.5 <0.5 <0.5 <br /> Purge 11/01/1997 <0.5 <0.5 <0.5 DUP,t-1,2-DCE:0.9 <br /> Purge 04/28/1998 <0.5 <0.5 <0.5 <br /> Purge 10/08/1998 <0.5 <0.5 <0.5 <br /> Purge 04/06/1999 <0.5 <0.5 <0.5 <br /> Purge 10/13/1999 <0.5 <0.5 <0.5 <br /> Page 54 of 93 <br />