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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 10/06/1998 <0.5 <0.5 <0.5 <br /> Purge 04/06/1999 <0.5 <0.5 <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 04/12/2001 <2.0 <2.0 <2.0 <br /> Purge 10/10/2001 <0.5 <0.5 <0.5 <br /> Purge 05/09/2002 <0.5 <0.5 <0.5 <br /> Purge - 10/29/2003 <0.5 <0.5 <0.5 <br /> PDB 27.5 04/22/2005 <0.5 <0.5 <0.5 <br /> PDB 27.5 04/22/2005 <0.5 <0.5 <0.5 DUP <br /> PDB 32.5 04/22/2005 <0.5 <0.5 <0.5 <br /> PDB 37.5 04/22/2005 <0.5 <0.5 <0.5 <br /> PDB 42.5 04/22/2005 <0.5 <0.5 <0.5 <br /> PDB 42.5 05/10/2007 <0.5 <0.5 <0.5 <br /> Purge 42.5 B 11/06/2008 <0.5 <0.5 <0.5 <br /> PDB 42.5 B 04/30/2009 <0.5 <0.5 <0.5 <br /> M-16B 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 10/01/1991 <0.5 <0.5 <0.5 Tol:0.7 <br /> Purge 03/01/1992 <0.5 <0.5 <0.5 <br /> Purge 01/01/1993 <0.5 <0.5 <0.5 <br /> Purge 01/01/1994 <0.5 0.6 <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 1.2 2.6 <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 10/06/1998 <0.5 <0.5 <0.5 <br /> Purge 04/06/1999 <0.5 <0.5 <0.5 <br /> Purge 10/07/1999 <0.5 <0.5 <0.5 <br /> Purge 04/18/2000 <0.5 2.6 <0.5 <br /> Purge 10/10/2000 <0.5 <0.5 <0.5 <br /> Purge 04/12/2001 <2.0 <2.0 <2.0 <br /> Purge 10/11/2001 <0.5 <0.5 <0.5 <br /> Purge 05/07/2002 <0.5 <0.5 <0.5 <br /> Purge 05/05/2003 <0.5 <0.5 <0.5 <br /> Purge - 04/13/2004 <0.5 <0.5 <0.5 <br /> PDB 32 04/22/2005 <0.5 <0.5 <0.5 <br /> PDB 37 04/22/2005 <0.5 <0.5 <0.5 <br /> PDB 42 04/22/2005 <0.5 <0.5 <0.5 <br /> PDB 37 04/25/2006 <0.5 <0.5 <0.5 <br /> PDB 42 04/25/2007 <0.5 <0.5 <0.5 <br /> PDB 42 A 04/23/2008 <0.5 <0.5 <0.5 <br /> - 04/23/2008 <0.5 <0.5 <0.5 DUP <br /> Purge 42 A 10/30/2008 <0.5 <0.5 <0.5 <br /> PDB 42 A 04/23/2009 <0.5 <0.5 <0.5 <br /> PDB 42 A 04/12/2010 <0.50 <0.50 <0.50 <br /> M-17A Purge - 11/01/1989 <0.5 2.7 <0.5 CF:0.9 <br /> Purge 11/01/1989 <0.5 <0.5 <0.5 DUP;CF:280 <br /> Purge 03/01/1990 3.6 <0.5 1.4 1,1,2-TCA:16,BDCMA:14,CHBr3:17;CF:11 <br /> Purge 07/01/1990 5 2.6 1.3 BDCMA:4.4,CHBr3:4.4,t-1.3-DCP:63;CF:5.1 <br /> Purge 07/01/1990 4.2 P.7 1 DUP,1,1,2-TCA:7.6,BDCMA:5.3,CHBr3:5.3; <br /> CF:5.8 <br /> Purge 09/01/1990 1.9 1.9 <0.5 CF:1.9 <br /> Purge 12/01/1990 <0.5 1.6 <0.5 CF:1 <br /> Purge 12/01/1990 1.3 2.1 <0.5 DUP <br /> Purge 04/01/1991 5.6 <0.5 <0.5 <br /> Purge 07/01/1991 1.8 0.9 <0.5 DBCMA:2.4,DBDCMA:3.1;CF:0.8 <br /> Purge 10/01/1991 5 0.8 <0.5 CF:1 <br /> Page 24 of 93 <br />