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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 10/01/1992 1.6 <0.5 <0.5 <br /> Purge 01/01/1993 <0.5 <0.5 <0.5 <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 <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 <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 05/01/1998 <0.5 <0.5 <0.5 <br /> Purge 10/06/1998 <0.5 <0.5 <0.5 <br /> Purge 04/06/1999 <0.5 16 <0.5 <br /> Purge 10/11/1999 <0.5 <0.5 <0.5 <br /> Purge 04/18/2000 <0.5 <0.5 <0.5 <br /> Purge 10/11/2000 <0.5 <0.5 <0.5 <br /> Purge 10/11/2000 <0.5 <0.5 <0.5 DUP 1 <br /> Purge 04/11/2001 <2.0 <2.0 <2.0 <br /> Purge 07/12/2001 <0.5 <0.5 <0.5 CM:1.4 <br /> Purge 10/10/2001 <0.5 <0.5 <0.5 <br /> Purge 01/23/2002 <0.5 <0.5 <0.5 <br /> Purge 05/07/2002 <0.5 <0.5 <0.5 <br /> Purge - 10/28/2003 <0.5 <0.5 <0.5 <br /> PDB 29.5 04/26/2005 <0.5 <0.5 <0.5 <br /> PDB 29.5 04/26/2005 <0.5 <0.5 <0.5 DUP <br /> PDB 34.5 04/26/2005 <0.5 <0.5 <0.5 <br /> PDB 39.5 B 04/26/2005 <0.5 <0.5 <0.5 <br /> PDB 39.5 B 04/25/2007 <0.5 <0.5 <0.5 <br /> PDB 39.5 B 04/10/2009 <0.5 <0.5 <0.5 <br /> M-11A Purge - 06/01/1988 2.7 2.5 3.9 <br /> Purge 03/01/1989 <0.5 <0.5 <0.5 <br /> Purge 11/01/1989 <0.5 <0.5 <0.5 1,1,1-TCA:2 <br /> Purge 03/01/1990 0.9 0.7 <0.5 <br /> Purge 07/01/1990 0.51 0.86 <0.5 <br /> Purge 09/01/1990 4.5 8.7 <0.5 <br /> Purge 12/01/1990 8.7 3.2 <0.5 <br /> Purge 04/01/1991 <0.5 <0.5 <0.5 <br /> Purge 07/01/1991 7.7 3.6 7.5 <br /> Purge 10/01/1991 17 5.2 24 CF:0.8 <br /> Purge 03/01/1992 7 2.2 8 <br /> Purge 06/01/1992 22 7.8 22 <br /> Purge 10/01/1992 12 7.4 5.4 <br /> Purge 01/01/1993 1.8 1.5 <0.5 CF:0.7 <br /> Purge 04/01/1993 4.6 3.5 <0.5 <br /> Purge 08/01/1993 4.9 2.6 <0.5 <br /> Purge 01/01/1994 5.7 4.9 7.2 <br /> Purge 03/01/1995 0.8 2 <0.5 <br /> Purge 04/01/1996 0.7 0.9 <0.5 <br /> Purge 04/01/1997 <0.5 <0.5 <0.5 <br /> Purge 04/01/1997 <0.5 <0.5 <0.5 DUP <br /> Purge 04/29/1998 <0.5 <0.5 <0.5 <br /> Purge 04/07/1999 <0.5 <0.5 <0.5 <br /> Purge 04/13/2000 <0.5 <0.5 <0.5 <br /> Purge 04/11/2001 <2.0 <2.0 <2.0 Tol:13 <br /> Purge 05/08/2002 <0.5 <0.5 <0.5 <br /> Purge 05/02/2003 <0.5 <0.5 <0.5 <br /> Purge 05/02/2003 <0.5 <0.5 <0.5 DUP <br /> Purge 04/23/2004 <0.5 <0.5 <0.5 <br /> Purge - 04/20/2005 <0.5 <0.5 <0.5 <br /> PDB 88.5 04/20/2005 <0.5 <0.5 <0.5 <br /> PDB 93.5 04/20/2005 <0.5 <0.5 <0.5 <br /> PDB 98.5 04/20/2005 <0.5 <0.5 <0.5 <br /> PDB 103.5 04/20/2005 <0.5 <0.5 <0.5 <br /> PDB 98.5 A 04/12/2006 <0.5 <0.5 <0.5 <br /> PDB 103.5 A 05/22/2007 <0.5 <0.5 <0.5 <br /> PDB 103.5 A 04/22/2008 <0.5 <0.5 <0.5 <br /> Purge 103.5 A 11/06/2008 <0.5 <0.5 <0.5 <br /> Page 19 of 93 <br />