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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 Q 07/11/2007 <0.5 <0.5 <0.5 <br /> Purge Q 10/15/2007 <0.5 <0.5 <0.5 <br /> Purge Q 03/27/2008 <0.5 <0.5 <0.5 <br /> 03/27/2008 <0.5 <0.5 <0.5 DUP <br /> Purge Q 04/30/2008 <0.5 <0.5 <0.5 <br /> Purge Q 07/23/2008 <0.5 <0.5 <0.5 <br /> Purge Q 12/05/2008 <0.5 <0.5 <0.5 <br /> Purge Q 02/24/2009 <0.5 <0.5 <0.5 <br /> Purge Q 04/15/2009 <0.5 <0.5 <0.5 <br /> Purge Q 07/30/2009 1.0 0.72 <0.5 <br /> Purge Q 10/28/2009 1.8 1.1 <0.5 <br /> Purge Q 01/28/2010 1.8 1 <0.50 <br /> Purge 01/28/2010 1.7 0.94 <0.50 DUP <br /> Purge Q 04/13/2010 1.5 0.97 <0.50 <br /> Purge Q 08/04/2010 1.5 0.97 <0.50 <br /> Purge Q 11/09/2010 1.7 0.98 <0.50 <br /> M-29C1 Purge 11/28/2000 <0.5 <0.5 <0.5 From ERM report <br /> Purge 01/09/2001 <1.0 <1.0 <1.0 <br /> Purge 04/16/2001 <2.0 <2.0 <2.0 <br /> Purge 04/16/2001 <2.0 <2.0 <2.0 DUP#3 <br /> Purge 07/12/2001 <0.5 <0.5 <0.5 <br /> Purge 10/08/2001 <0.5 <0.5 <0.5 PCE:2.1 <br /> Purge 01/09/2001 <1.0 <1.0 <1.0 <br /> Purge 04/16/2001 <2.0 <2.0 <2.0 <br /> Purge 07/12/2001 <0.5 <0.5 <0.5 <br /> Purge 10/08/2001 <0.5 <0.5 <0.5 PCE:0.8 <br /> Purge 01/21/2002 <0.5 <0.5 <0.5 <br /> Purge 05/07/2002 <0.5 <0.5 <0.5 <br /> Purge 08/02/2002 <0.5 <0.5 <0.5 <br /> Purge 10/07/2002 <0.5 <0.5 <0.5 <br /> Purge 10/07/2002 <0.5 <0.5 <0.5 DUP <br /> Purge 02/03/2003 <0.5 <0.5 <0.5 <br /> Purge 05/02/2003 <0.5 <0.5 <0.5 <br /> Purge 07/23/2003 <0.5 <0.5 <0.5 <br /> Purge 10/27/2003 <0.5 <0.5 <0.5 <br /> Purge 01/22/2004 <0.5 <0.5 <0.5 <br /> Purge 04/13/2004 <0.5 <0.5 <0.5 <br /> Purge 07/20/2004 <0.5 <0.5 <0.5 PCE:0.9 <br /> Purge 10/12/2004 <0.5 <0.5 <0.5 <br /> Purge 01/27/2005 <0.5 <0.5 <0.5 <br /> Purge 05/18/2005 <0.5 <0.5 <0.5 <br /> Purge 08/03/2005 <0.5 <0.5 <0.5 <br /> Purge 10/13/2005 <0.5 <0.5 <0.5 <br /> Purge 01/20/2006 <0.5 <0.5 <0.5 <br /> Purge 04/17/2006 <0.5 <0.5 <0.5 <br /> Purge 07/21/2006 <0.5 <0.5 <0.5 DUP <br /> Purge 07/21/2006 <0.5 <0.5 <0.5 <br /> Purge Q 10/11/2006 <0.5 <0.5 <0.5 <br /> Purge Q 02/13/2007 <0.5 <0.5 <0.5 <br /> Purge Q 04/20/2007 <0.5 <0.5 <0.5 <br /> Purge Q 07/11/2007 <0.5 <0.5 <0.5 <br /> Purge 07/11/2007 <0.5 <0.5 <0.5 DUP <br /> Purge Q 10/15/2007 <0.5 <0.5 <0.5 <br /> Purge Q 03/24/2008 <0.5 <0.5 <0.5 <br /> Purge Q 04/30/2008 <0.5 <0.5 <0.5 <br /> Purge Q 07/24/2008 <0.5 <0.5 <0.5 <br /> Purge Q 12/04/2008 <0.5 <0.5 <0.5 <br /> Purge Q 02/23/2009 <0.5 <0.5 <0.5 <br /> Purge Q 04/15/2009 <0.5 <0.5 <0.5 <br /> Purge Q 08/05/2009 <0.5 <0.5 <0.5 <br /> Purge Q 10/27/2009 <0.5 <0.5 <0.5 <br /> Purge Q 01/28/2010 <0.50 <0.50 <0.50 <br /> Purge Q 01/28/2010 <0.50 <0.50 <0.50 DUP <br /> Purge Q/A 04/13/2010 <0.50 <0.50 <0.50 Sampling Annual in May 2010 MRP <br /> M-29C2 Purge 11/28/2000 <0.5 <0.5 <0.5 From ERM report <br /> Purge 01/09/2001 <1.0 <1.0 <1.0 <br /> Purge 04/16/2001 <2.0 <2.0 <2.0 <br /> Purge 07/12/2001 <0.5 <0.5 <0.5 <br /> Purge 10/08/2001 <0.5 <0.5 <0.5 PCE:0.8 <br /> Page 49 of 93 <br />