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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 01/01/1993 <0.5 3.1 <0.5 <br /> Purge 01/01/1993 <0.5 1.5 <0.5 DUP <br /> Purge 04/01/1993 <0.5 <0.5 <0.5 <br /> Purge 08/01/1993 <0.5 <0.5 <0.5 <br /> Purge 01/01/1994 <0.5 <0.5 <0.5 <br /> Purge 07/01/1994 <0.5 <0.5 <0.5 <br /> Purge 03/01/1995 <0.5 <0.5 <0.5 Iso-benzene:8.4,Tol:8 <br /> Purge 10/01/1995 <0.5 <0.5 <0.5 <br /> Purge 04/01/1996 <0.5 <0.5 <0.5 <br /> Purge 10/01/1996 1.4 2.9 <0.5 <br /> Purge 04/01/1997 <0.5 <0.5 <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 <br /> Purge 04/29/1998 <0.5 <0.5 <0.5 <br /> Purge 04/29/1998 <0.5 <0.5 <0.5 DUP6 <br /> Purge 10/08/1998 <0.5 <0.5 <0.5 <br /> Purge 10/08/1998 <0.5 <0.5 <0.5 DUP4 <br /> Purge 04/06/1999 <0.5 <0.5 <0.5 <br /> Purge 10/14/1999 1.1 0.5 <0.5 <br /> Purge 04/11/2000 <0.5 <0.5 <0.5 <br /> Purge 04/11/2000 <0.5 <0.5 <0.5 DUP 6 <br /> Purge 10/10/2000 <0.5 <0.5 <0.5 <br /> Purge 04/12/2001 <2.0 <2.0 <2.0 <br /> Purge 10/10/2001 <0.5 <0.5 <0.5 CM:0.6 <br /> Purge 05/09/2002 <0.5 <0.5 <0.5 <br /> Purge 07/23/2002 1.1 1 <0.5 <br /> Purge 07/23/2002 1.1 1.1 <0.5 DUP <br /> Purge 10/09/2002 1 1.2 <0.5 <br /> Purge 02/04/2003 2.2 2.1 <0.5 <br /> Purge 05/02/2003 2.7 2.8 <0.5 <br /> Purge 07/22/2003 2.7 3.3 <0.5 <br /> Purge 10/27/2003 2.7 3.7 <0.5 <br /> Purge 01/26/2004 2.5 3.2 <0.5 <br /> Purge 04/20/2004 2 2.9 <0.5 <br /> Purge 07/15/2004 2.1 3 <0.5 <br /> Purge 10/13/2004 2.6 3.8 <0.5 <br /> Purge 01/25/2005 2.3 3.4 <0.5 <br /> Purge - 01/25/2005 2.2 3.4 <0.5 DUP <br /> PDB 210.5 04/19/2005 2.2 3.5 <0.5 <br /> PDB 210.5 04/19/2005 2.5 3.9 <0.5 DUP <br /> PDB 215.5 08/24/2005 3.1 5.2 <0.5 <br /> PDB 220.5 10/27/2005 3 5.6 <0.5 <br /> PDB 220.5 01/26/2006 2.3 4.7 <0.5 <br /> PDB 225.5 04/18/2006 2.7 4.5 <0.5 <br /> PDB 225.5 07/19/2006 2.2 4.1 <0.5 <br /> PDB 210.5 10/18/2006 1.5 2.9 <0.5 <br /> PDB 215.5 10/18/2006 1.6 3.4 <0.5 <br /> PDB 220.5 10/18/2006 1.6 3.4 <0.5 <br /> PDB 225.5 Q 10/18/2006 1.6 3.1 <0.5 <br /> PDB 210.5 Q 02/26/2007 1.4 3 <0.5 <br /> PDB 215.5 Q 02/26/2007 1.5 2.9 <0.5 <br /> PDB 220.5 Q 02/26/2007 1.4 2.9 <0.5 <br /> PDB 225.5 Q 02/26/2007 1.5 2.8 <0.5 <br /> PDB 225.5 Q 04/25/2007 1.6 2.9 <0.5 <br /> PDB 225.5 Q 07/03/2007 1.7 2 <0.5 <br /> PDB 225.5 Q 10/10/2007 1.6 2.2 <0.5 <br /> PDB 225.5 Q 02/26/2008 0.86 1.8 <0.5 <br /> PDB 225.5 Q 04/28/2008 1.2 2 <0.5 <br /> PDB 225.5 Q 07/22/2008 0.94 1.7 <0.5 <br /> PDB 225.5 Q 11/25/2008 0.84 1.6 <0.5 <br /> PDB 225.5 Q 02/09/2009 0.8 1.5 <0.5 <br /> PDB 225.5 Q 04/10/2009 0.66 1.6 <0.5 <br /> PDB 225.5 Q 07/29/2009 <0.5 1.2 <0.5 <br /> PDB 225.5 Q 10/26/2009 <0.5 1.1 <0.5 <br /> PDB 225.5 Q 01/18/2010 <0.50 1.2 <0.50 <br /> PDB 225.5 Q 04/28/2010 0.73 1.1 <0.50 <br /> Low flow purge 225.5 Q 08/05/2010 0.64 1.3 <0.50 <br /> PDB 225.5 Q 10/21/2010 0.94 1.9 <0.5 <br /> M-20D Purge - 03/01/1992 3.4 1.2 <0.5 1,1-DCA:0.8;CF:0.5 <br /> Page 56 of 93 <br />