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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 04/10/2000 <0.5 <0.5 <0.5 <br /> Purge 10/10/2000 <0.5 <0.5 <0.5 <br /> Purge 04/11/2001 <2.0 <2.0 <2.0 To1:8.8 <br /> Purge 07/11/2001 <0.5 <0.5 <0.5 <br /> Purge 10/09/2001 <0.5 <0.5 <0.5 <br /> Purge 01/22/2002 0.6 <0.5 <0.5 <br /> Purge 05/06/2002 <0.5 <0.5 <0.5 <br /> Purge 05/06/2002 <0.5 <0.5 <0.5 DUP;PCE:0.5 <br /> Purge 07/23/2002 0.6 <0.5 <0.5 <br /> Purge 10/09/2002 <0.5 <0.5 <0.5 <br /> Purge 01/31/2003 <0.5 <0.5 <0.5 <br /> Purge 05/02/2003 0.6 <0.5 <0.5 <br /> Purge 07/22/2003 0.9 0.6 <0.5 <br /> Purge 07/22/2003 0.9 0.6 <0.5 DUP <br /> Purge 10/30/2003 1.6 0.9 <0.5 <br /> Purge 01/23/2004 2.9 1.1 <0.5 <br /> Purge 04/15/2004 3.3 1.4 <0.5 <br /> Purge 07/23/2004 4.5 1.8 <0.5 <br /> Purge 10/14/2004 5.1 2.1 <0.5 <br /> Purge - 01/26/2005 5.6 2.3 <0.5 <br /> PDB 127.5 04/22/2005 4.9 1.8 <0.5 <br /> PDB 132.5 08/24/2005 5.6 2.3 <0.5 <br /> PDB 132.5 10/27/2005 6.3 2.3 <0.5 <br /> PDB 137.5 01/26/2006 5.4 2.1 <0.5 <br /> PDB 137.5 01/26/2006 5.2 1.9 <0.5 DUP <br /> PDB 142.5 04/19/2006 6.1 2.1 <0.5 <br /> PDB 142.5 07/19/2006 6 2 <0.5 <br /> PDB 142.5 Q 10/17/2006 6 2.5 <0.5 <br /> PDB 132.5 Q 02/26/2007 5.8 2.4 <0.5 <br /> PDB 132.5 Q 04/26/2007 5.9 2 <0.5 <br /> PDB 132.5 Q 07/03/2007 5 2 <0.5 <br /> PDB 132.5 Q 10/11/2007 5.6 2.2 <0.5 <br /> - 10/11/2007 5.7 2.3 <0.5 DUP <br /> PDB 132.5 Q 02/26/2008 4.1 2.3 <0.5 <br /> PDB 132.5 Q 04/22/2008 5.4 2.3 <0.5 <br /> PDB 132.5 Q 07/21/2008 6.8 2.7 <0.5 <br /> PDB 132.5 Q 10/17/2008 6.7 2.6 <0.5 <br /> PDB 132.5 Q 01/30/2009 8.3 2.6 <0.5 <br /> - 01/30/2009 7.9 2.7 <0.5 DUP <br /> PDB 132.5 Q 04/28/2009 7.3 2.5 <0.5 <br /> PDB 132.5 Q 07/28/2009 7.2 2.9 <0.5 <br /> - 07/28/2009 7.3 3.0 <0.5 DUP <br /> PDB 132.5 Q 10/26/2009 8.6 3.3 <0.5 <br /> PDB 132.5 Q 01/18/2010 <0.50 <0.50 <0.50 <br /> PDB 132.5 Q 04/19/2010 7.4 3.1 <0.50 <br /> - 04/19/2010 6.7 2.9 <0.50 DUP <br /> PDB 132.5 Q 07/08/2010 6.2 2.4 <0.50 <br /> PDB 132.5 Q - - - <br /> PDB 132.5 Q 10/21/2010 6.6 2.8 <0.50 Sample incorrectly labeled as M-21C <br /> M-23C1 Purge - 10/01/1992 5.9 2 4.2 CF:1.1 <br /> Purge 01/01/1993 24 32 11 <br /> Purge 04/01/1993 24 7.8 11 <br /> Purge 08/01/1993 12 3.6 <0.5 <br /> Purge 01/01/1994 8.2 2.8 <0.5 <br /> Purge 04/01/1996 <0.5 <0.5 <0.5 <br /> Purge 10/01/1996 <0.5 <0.5 <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 04/30/1998 <0.5 <0.5 <0.5 <br /> Purge 04/07/1999 <0.5 <0.5 <0.5 <br /> Purge 04/12/2000 <0.5 <0.5 <0.5 <br /> Purge 04/10/2001 <2.0 <2.0 <2.0 <br /> Purge 05/09/2002 <0.5 <0.5 <0.5 <br /> Purge 05/07/2003 NS NS NS <br /> Purge - 04/16/2004 <0.5 <0.5 <0.5 <br /> PDB 113.3 04/22/2005 0.53 <0.5 0.77 Actual depth is 113.3 ft bgs,not 113.5 ft bgs. <br /> PDB 118.3 04/22/2005 0.63 <0.5 0.83 Actual depth is 118.3 ft bgs,not 118.5 ft bgs. <br /> PDB 123.3 04/22/2005 0.61 <0.5 0.78 Actual depth is 123.3 ft bgs,not 123.5 ft bgs. <br /> PDB 128.3 04/22/2005 0.7 <0.5 1.1 <br /> Page 44 of 93 <br />