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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 - 10/30/2003 6.9 5.4 <0.5 <br /> PDB 28.5 04/26/2005 1.6 1.8 <0.5 PCE:1.2 <br /> PDB 33.5 04/26/2005 5.3 4.7 <0.5 PCE:1.4 <br /> PDB 38.5 04/26/2005 4.2 2.8 <0.5 <br /> Purge - 05/09/2005 4.5 3.7 <0.5 PCE:2.2 <br /> PDB 33.5 04/25/2007 <0.5 0.6 <0.5 TCE:1.6 <br /> PDB 33.5 B 04/10/2009 <0.5 <0.5 <0.5 PCE:0.55 <br /> M-15A Purge - 03/01/1989 13 17 <0.5 <br /> Purge 11/01/1989 5.4 7.1 <0.5 <br /> Purge 03/01/1990 5 6.4 <0.5 <br /> Purge 03/01/1990 5 5.7 <0.5 DUP <br /> Purge 07/01/1990 4.6 7.3 <0.5 <br /> Purge 09/01/1990 2.9 4 <0.5 <br /> Purge 12/01/1990 <0.5 3.8 <0.5 <br /> Purge 04/01/1991 1.6 3.3 <0.5 <br /> Purge 07/01/1991 4.7 5.7 <0.5 <br /> Purge 10/01/1991 9.3 9.2 <0.5 Tol:1.1 <br /> Purge 03/01/1992 3.4 5.4 <0.5 <br /> Purge 06/01/1992 2.4 10 <0.5 <br /> Purge 01/01/1993 <0.5 4 <0.5 <br /> Purge 04/01/1993 <0.5 5.1 <0.5 <br /> Purge 08/01/1993 4 12 <0.5 <br /> Purge 01/01/1994 <0.5 4.9 <0.5 <br /> Purge 03/01/1995 <0.5 2.9 <0.5 1,2-DCA:1,Iso-benzene:0.7,Tol:0.8 <br /> Purge 04/01/1996 <0.5 37 <0.5 <br /> Purge 04/01/1997 <0.5 2.1 <0.5 <br /> Purge 05/01/1998 <0.5 1.5 <0.5 <br /> Purge 04/08/1999 <0.5 0.7 <0.5 <br /> Purge 04/14/2000 <0.5 <0.5 <0.5 <br /> Purge 04/12/2001 <2.0 <2.0 <2.0 <br /> Purge 05/09/2002 <0.5 <0.5 <0.5 <br /> Purge 05/06/2003 1.4 1.8 <0.5 <br /> Purge - 05/13/2004 <0.5 <0.5 <0.5 <br /> PDB 90.5 04/22/2005 0.53 0.68 <0.5 <br /> PDB 90.5 04/22/2005 0.51 0.71 <0.5 DUP <br /> PDB 95.5 04/22/2005 0.57 0.65 <0.5 <br /> PDB 100.5 04/22/2005 0.54 0.69 <0.5 <br /> PDB 105.5 04/22/2005 <0.5 0.7 <0.5 <br /> PDB 95.5 04/19/2006 <0.5 <0.5 <0.5 <br /> PDB 95.5 05/10/2007 <0.5 <0.5 <0.5 <br /> PDB 95.5 A 04/24/2008 <0.5 <0.5 <0.5 <br /> Purge 95.5 A 11/06/2008 <0.5 <0.5 <0.5 <br /> PDB 95.5 A 04/30/2009 <0.5 <0.5 <0.5 <br /> PDB 95.5 A 04/28/2010 <0.50 <0.50 <0.50 <br /> M-15B Purge - 03/01/1989 <0.5 <0.5 <0.5 <br /> Purge 11/01/1989 <0.5 <0.5 <0.5 <br /> Purge 03/01/1990 <0.5 <0.5 <0.5 <br /> Purge 07/01/1990 <0.5 <0.5 <0.5 <br /> Purge 09/01/1990 <0.5 <0.5 <0.5 <br /> Purge 12/01/1990 <0.5 <0.5 <0.5 <br /> Purge 04/01/1991 <0.5 <0.5 <0.5 <br /> Purge 07/01/1991 <0.5 <0.5 <0.5 <br /> Purge 07/01/1991 <0.5 <0.5 <0.5 DUP <br /> Purge 10/01/1991 <0.5 <0.5 <0.5 Tol:7.1 <br /> Purge 03/01/1992 <0.5 <0.5 <0.5 <br /> Purge 06/01/1992 <0.5 <0.5 <0.5 <br /> Purge 10/01/1992 <0.5 0.7 <0.5 <br /> Purge 01/01/1993 <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 04/01/1997 <0.5 <0.5 <0.5 DUP <br /> Purge 11/01/1997 <0.5 <0.5 <0.5 <br /> Purge 05/01/1998 <0.5 0.6 <0.5 <br /> Page 23 of 93 <br />