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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 /> Low flow purge 150.5 A 08/03/2010 11 13 <0.50 <br /> M-25C2 Purge - 06/03/1999 30 10 <0.5 <br /> Purge 07/16/1999 49 14 <0.5 CF:1 <br /> Purge 10/15/1999 54 16 <0.5 <br /> Purge 01/21/2000 52 15 <0.5 <br /> Purge 04/14/2000 50 15 <0.5 CF:1 <br /> Purge 07/13/2000 37 11 <0.5 CF:0.7 <br /> Purge 10/11/2000 54 14 <0.5 CF:1.2 <br /> Purge 01/09/2001 48 12 <1.0 <br /> Purge 01/09/2001 52 13 <1.0 DUP <br /> Purge 04/13/2001 31 6.4 <2.0 <br /> Purge 07/11/2001 53 13 <0.5 <br /> Purge 10/11/2001 51 13 <0.5 CM:0.6 <br /> Purge 01/23/2002 57 14 <0.5 <br /> Purge 05/09/2002 55 16 <0.5 <br /> Purge 04/29/2003 59 15 <0.5 <br /> Purge - 04/26/2004 65 17 <0.5 <br /> PDB 178.5 04/27/2005 12 4.9 41 <br /> PDB 178.5 04/27/2005 11 5.4 39 DUP <br /> PDB 183.5 04/27/2005 13 5.7 43 <br /> Purge - 05/10/2005 57 19 <0.5 <br /> PDB 183.5 A 04/18/2006 47 12 <0.5 <br /> PDB 183.5 A 05/10/2007 42 13 <0.5 <br /> PDB 183.5 A 04/28/2008 31 9.4 <0.5 <br /> PDB 183.5 A 04/30/2009 17 4.8 <0.5 <br /> Low flow purge 183.5 A 04/26/2010 18 6.4 <0.50 <br /> Low flow purge 183.5 A 08/03/2010 18 5.6 <0.50 <br /> M-26C2 Purge - 11/28/2000 1.8 <0.5 <0.5 From ERM report <br /> Purge 01/10/2001 5 1.3 <1.0 <br /> Purge 04/10/2001 4.4 <2.0 <2.0 <br /> Purge 04/10/2001 4.4 <2.0 <2.0 DUP#9 <br /> Purge 07/11/2001 15 2.9 1 <br /> Purge 10/09/2001 9.5 2.5 <0.5 <br /> Purge 10/09/2001 12 2.5 <0.5 DUP <br /> Purge 01/21/2002 <0.5 <0.5 <0.5 <br /> Purge 05/08/2002 5.3 1.8 <0.5 <br /> Purge 07/24/2002 3.1 0.7 <0.5 <br /> Purge 07/24/2002 3.7 0.8 <0.5 DUP <br /> Purge 10/07/2002 5 1.3 <0.5 <br /> Purge 01/31/2003 3.9 0.8 <0.5 <br /> Purge 01/31/2003 3.9 0.9 <0.5 DUP <br /> Purge 05/01/2003 8.1 1.9 <0.5 <br /> Purge 07/22/2003 3.2 0.8 <0.5 <br /> Purge 07/22/2003 3.5 0.8 <0.5 DUP <br /> Purge 10/28/2003 4.1 1 <0.5 <br /> Purge 10/28/2003 4.3 1.1 <0.5 DUP <br /> Purge 01/26/2004 3.6 0.8 <0.5 <br /> Purge 04/14/2004 2.8 0.7 <0.5 <br /> Purge 07/16/2004 1.9 <0.5 <0.5 <br /> Purge 07/16/2004 1.9 <0.5 <0.5 DUP <br /> Purge 10/14/2004 6.2 1.6 0.5 <br /> Purge 10/14/2004 6.4 1.8 <0.5 DUP <br /> Purge - 02/01/2005 3.8 1.1 0.9 <br /> PDB 182.5 04/20/2005 17 4.6 2.8 <br /> PDB 187.5 04/20/2005 18 5.1 3.1 <br /> PDB 192.5 04/20/2005 14 3.8 2.2 <br /> PDB 187.5 08/24/2005 2 0.77 0.53 <br /> PDB 187.5 10/28/2005 4.3 1.2 0.66 <br /> PDB 187.5 10/28/2005 4.4 1.2 0.7 DUP <br /> PDB 187.5 01/26/2006 5.2 1.6 0.66 <br /> PDB 187.5 04/18/2006 2.4 0.64 0.51 <br /> PDB 187.5 07/19/2006 6 1.6 0.7 DUP <br /> PDB 187.5 07/19/2006 5 1.5 <0.5 <br /> PDB 187.5 Q 10/17/2006 1.8 0.55 <0.5 <br /> PDB 187.5 Q 02/26/2007 12 3.5 1.2 <br /> PDB 187.5 Q 05/10/2007 8.3 2.3 0.77 <br /> - 05/10/2007 8.1 2.2 0.84 DUP <br /> PDB 187.5 Q 07/05/2007 15 4.1 1 <br /> PDB 187.5 Q 10/10/2007 11 3 1.3 <br /> Page 46 of 93 <br />