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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 <0.5 <0.5 <br /> Purge 04/01/1993 0.9 0.5 <0.5 <br /> Purge 04/01/1993 0.8 <0.5 <0.5 DUP <br /> Purge 08/01/1993 1.1 <0.5 <0.5 <br /> Purge 08/01/1993 1 <0.5 <0.5 DUP <br /> Purge 01/01/1994 2.7 1 <0.5 <br /> Purge 05/01/1994 1.9 <0.5 <0.5 <br /> Purge 07/01/1994 1.8 <0.5 <0.5 <br /> Purge 10/01/1994 3.4 1.8 <0.5 <br /> Purge 03/01/1995 0.8 <0.5 <0.5 Iso-benzene:3.6,Tol:0.9 <br /> Purge 07/01/1995 0.9 <0.5 <0.5 <br /> Purge 10/01/1995 0.9 3.9 <0.5 <br /> Purge 01/01/1996 1.37 0.8 <0.5 CF:0.6 <br /> Purge 04/01/1996 2.6 0.6 <0.5 <br /> Purge 07/01/1996 0.7 <0.5 <0.5 <br /> Purge 10/01/1996 3.8 0.8 <0.5 <br /> Purge 01/01/1997 1.8 0.8 <0.5 <br /> Purge 04/01/1997 <0.5 <0.5 <0.5 <br /> Purge 04/01/1997 0.6 <0.5 <0.5 DUP <br /> Purge 04/01/1997 <0.5 <0.5 1.2 DUP <br /> Purge 07/01/1997 <0.5 <0.5 <0.5 <br /> Purge 07/01/1997 <0.5 2.1 <0.5 DUP <br /> Purge 11/01/1997 <0.5 1.1 <0.5 <br /> Purge 02/04/1998 <0.5 <0.5 <0.5 <br /> Purge 02/04/1998 <0.5 <0.5 <0.5 DUP1 <br /> Purge 05/01/1998 <0.5 0.6 <0.5 <br /> Purge 07/16/1998 <0.5 <0.5 <0.5 <br /> Purge 10/07/1998 <0.5 <0.5 <0.5 <br /> Purge 01/05/1999 0.9 0.5 <0.5 <br /> Purge 04/09/1999 <0.5 <0.5 <0.5 <br /> Purge 07/20/1999 <0.5 <0.5 <0.5 <br /> Purge 10/07/1999 <0.5 <0.5 <0.5 <br /> Purge 01/21/2000 <0.5 <0.5 <0.5 <br /> Purge 01/21/2000 <0.5 <0.5 <0.5 DUP <br /> Purge 04/12/2000 <0.5 <0.5 <0.5 <br /> Purge 07/13/2000 <0.5 <0.5 <0.5 <br /> Purge 10/09/2000 0.7 <0.5 <0.5 <br /> Purge 01/09/2001 <1.0 <1.0 <1.0 <br /> Purge 01/09/2001 1.1 <1.0 <1.0 DUP <br /> Purge 04/11/2001 2.3 <2.0 <2.0 <br /> Purge 07/11/2001 1.3 0.7 <0.5 MC:1.1 <br /> Purge 10/11/2001 3.9 1.5 <0.5 <br /> Purge 01/22/2002 3.8 1.2 <0.5 <br /> Purge 01/22/2002 3.7 1.2 <0.5 DUP <br /> Purge 05/07/2002 3.5 1 <0.5 <br /> Purge 07/23/2002 1.9 0.6 <0.5 <br /> Purge 10/09/2002 2.6 1 <0.5 <br /> Purge 02/04/2003 3.7 1.1 <0.5 <br /> Purge 05/06/2003 4 1.2 <0.5 <br /> Purge 07/22/2003 3.7 1.2 <0.5 <br /> Purge 10/28/2003 4.8 1.5 <0.5 <br /> Purge 01/23/2004 4 1.3 <0.5 <br /> Purge 04/20/2004 3.3 1.1 <0.5 <br /> Purge 07/21/2004 4 1.4 <0.5 <br /> Purge 10/15/2004 4.4 1.5 <0.5 <br /> Purge - 01/26/2005 3 1.4 <0.5 <br /> PDB 164.5 04/26/2005 2.6 2.7 <0.5 <br /> PDB 164.5 04/26/2005 2.6 2.8 <0.5 DUP <br /> PDB 169.5 08/24/2005 2 2.7 <0.5 <br /> PDB 164.5 10/28/2005 2.2 2.7 <0.5 <br /> PDB 164.5 01/26/2006 2.1 3.7 <0.5 <br /> PDB 164.5 04/19/2006 2.3 3 <0.5 <br /> PDB 164.5 07/19/2006 2.4 3 <0.5 <br /> PDB 164.5 Q 10/17/2006 1.4 2.6 <0.5 <br /> PDB 164.5 Q 02/26/2007 0.89 3.1 <0.5 <br /> PDB 164.5 Q 04/25/2007 0.66 2.9 <0.5 <br /> PDB 164.5 Q 07/03/2007 <0.5 3 <0.5 <br /> PDB 164.5 Q 10/10/2007 <0.5 24 23 t-1,2-DCE:0.54 <br /> PDB 164.5 Q 02/27/2008 1.8 5.1 <0.5 <br /> Page 38 of 93 <br />