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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 /> Purge A 05/01/2003 <0.50 <0.50 <0.50 <br /> Purge A 04/14/2004 <0.50 <0.50 <0.50 <br /> Purge A 04/20/2005 <0.50 <0.50 <0.50 <br /> Purge A 04/12/2006 <0.50 <0.50 <0.50 <br /> Purge A 04/26/2007 <0.50 <0.50 <0.50 <br /> Purge A 04/23/2008 <0.50 <0.50 <0.50 <br /> Purge - A 04/08/2009 <0.50 <0.50 <0.50 <br /> PDB 90 A 04/07/2010 <0.50 <0.50 <0.50 <br /> TH-8 Purge - A 03/02/1999 100 40 28 1,1-DCE:0.9,t-1,2-DCE:1.4 <br /> Purge A 04/10/2001 19 7.6 9.1 <br /> Purge A 07/11/2001 52 30 5.4 1,1-DCE:0.9,t-1,2-DCE:0.9 <br /> Purge A 10/09/2001 69 31 4.1 1,1-DCE:1,t-1,2-DCE:1 <br /> Purge A 01/22/2002 110 37 110 1,1-DCE:1,t-1,2-DCE:1.7 <br /> Purge A 05/08/2002 88 34 <0.5 1,1-DCE:0.8,t-1,2-DCE:1 <br /> Purge A 03/12/2003 83 28 83 1,1-DCE:0.8,t-1,2-DCE:1.6 <br /> Purge A 05/01/2003 66 23 67 1,1-13CE:0.6,t-1,2-DCE:1.1 <br /> Purge A 04/14/2004 40 15 43 t-1,2-DCE:0.7 <br /> Purge A 04/20/2005 56 21 86 1,1-13CE:0.87,t-1,2-DCE:1.2 <br /> Purge A 04/12/2006 27 9.4 53 t-1,2-DCE:0.58 <br /> Purge A 04/26/2007 15 4.8 24 <br /> Purge A 04/23/2008 8.7 3 14 <br /> Purge A 04/08/2009 6.1 1.8 8.7 <br /> Purge - A 10/07/2009 12 4.3 15 <br /> PDB 147.5 Q 04/07/2010 8.2 3 11 <br /> PDB 152.5 Q 07/02/2010 8.8 3 12 <br /> PDB 142.5 Q 12/02/2010 8.8 2.9 17 <br /> TH-9 Purge - Q 07/27/2000 1.2 0.6 1.7 <br /> Purge Q 10/09/2000 1.8 0.9 1.1 <br /> Purge Q 04/10/2001 <2 <2 <2 <br /> Purge Q 07/10/2001 2.2 0.9 <0.5 <br /> Purge Q 10/09/2001 1.8 0.9 <0.5 <br /> Purge Q 01/22/2002 3.9 1.8 1.5 <br /> Purge Q 05/08/2002 3 1.2 <0.5 <br /> Purge Q 07/23/2002 3.4 1.6 0.7 <br /> Purge Q 10/08/2002 5.2 2.5 3 <br /> Purge Q 01/30/2003 6.8 2.6 3.4 <br /> Purge Q 03/12/2003 6.4 2.4 6.2 <br /> Purge Q 05/01/2003 4.4 1.8 6 <br /> Purge Q 07/22/2003 4.3 1.8 5 <br /> Purge Q 10/29/2003 7.9 3.3 11 <br /> Purge Q 01/22/2004 4.7 1.9 5.5 <br /> Purge Q 04/14/2004 7 2.7 6 <br /> Purge Q 07/14/2004 1.8 <0.5 <0.5 <br /> Purge Q 10/13/2004 5.3 2.2 4.1 <br /> Purge Q 01/25/2005 3.9 1.4 4.2 <br /> Purge Q 04/20/2005 1.7 0.64 2.2 <br /> Purge Q 01/25/2006 3.7 1.5 3.6 <br /> Purge Q 04/12/2006 3.3 1.2 3.4 <br /> Purge Q 07/19/2006 5.6 2.1 3.1 <br /> Purge Q 10/18/2006 3.3 1.1 3 <br /> Purge Q 02/22/2007 3.8 1.3 <0.5 <br /> Purge Q 04/26/2007 3.8 1.3 2.4 <br /> Purge Q 07/11/2007 2.4 0.86 2.3 <br /> Purge Q 10/17/2007 1.4 0.68 1.7 <br /> Purge Q 01/30/2008 0.74 <0.5 0.99 <br /> Purge Q 04/23/2008 0.96 <0.5 0.95 <br /> Purge Q 07/16/2008 1 <0.5 1.2 <br /> Purge Q 10/15/2008 1.2 0.62 1.7 <br /> Purge Q 01/14/2009 0.66 <0.5 0.86 <br /> Purge Q 04/08/2009 <0.5 <0.5 0.6 <br /> Purge Q 07/22/2009 <0.5 <0.5 0.80 <br /> Purge - Q 10/07/2009 0.55 <0.5 <0.5 <br /> PDB 92.5 Q 02/12/2010 <0.50 <0.50 <0.50 <br /> - 02/12/2010 <0.50 <0.50 <0.50 DUP <br /> PDB 87.5 Q 04/07/2010 0.9 <0.50 1.2 <br /> PDB 97.5 Q 07/02/2010 0.68 <0.50 0.63 <br /> PDB 82.5 Q 12/02/2010 0.72 <0.50 <0.50 <br /> TH-10 Purge - Q 07/27/2000 120 46 170 1,1-DCE:2.1,t-1,2-DCE:2.3 <br /> Purge Q 10/09/2000 100 41 280 1,1-DCE:2.1,t-1,2-DCE:2.4 <br /> Page 73 of 93 <br />