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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 10/01/1996 <0.5 29 <0.5 1,4-Diox:2.5 <br /> Purge 01/01/1997 <0.5 <0.5 <0.5 CF:55 <br /> Purge 04/01/1997 <0.5 1.1 <0.5 <br /> Purge 05/01/1998 <0.5 2.4 <0.5 <br /> Purge 04/06/1999 <0.5 2.5 <0.5 <br /> Purge 04/10/2000 6.3 28 <0.5 CF:0.9 <br /> Purge 07/10/2000 5.3 12 <0.5 CF:0.6 <br /> Purge 04/16/2001 <2.0 <2.0 <2.0 <br /> Purge 05/08/2002 <0.5 <0.5 <0.5 <br /> Purge 04/29/2003 <0.5 2.8 <0.5 <br /> Purge 04/15/2004 <0.5 1.1 <0.5 <br /> Purge - 04/15/2004 <0.5 1.1 <0.5 DUP <br /> PDB 33.5 04/22/2005 <0.5 0.66 <0.5 <br /> PDB 38.5 04/22/2005 <0.5 0.63 <0.5 <br /> PDB 38.5 A 04/25/2006 <0.5 1.1 <0.5 <br /> PDB 38.5 A 05/10/2007 <0.5 <0.5 <0.5 <br /> PDB 38.5 A 04/28/2008 <0.5 <0.5 <0.5 <br /> PDB 38.5 A 04/28/2009 <0.5 <0.5 <0.5 <br /> - 04/28/2009 <0.5 <0.5 <0.5 DUP <br /> PDB 38.5 A 04/28/2010 <0.50 <0.50 <0.50 <br /> M-5A Purge - 10/01/1987 <0.5 <0.5 <0.5 <br /> Purge 06/01/1988 NA <0.5 <0.5 1,1,1-TCA:26 <br /> Purge 03/01/1989 <0.5 <0.5 <0.5 1,1,1-TCA:11 <br /> Purge 11/01/1989 <0.5 <0.5 <0.5 1,1,1-TCA:2.6 <br /> Purge 03/01/1990 <0.5 <0.5 <0.5 1,1,1-TCA:1.2 <br /> Purge 07/01/1990 <0.5 <0.5 <0.5 <br /> Purge 09/01/1990 <0.5 <0.5 <0.5 <br /> Purge 09/01/1990 <0.5 <0.5 <0.5 DUP,1,1,1-TCA:0.9 <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 0.6 <0.5 Tol:1.6 <br /> Purge 03/01/1992 <0.5 <0.5 <0.5 <br /> Purge 06/01/1992 <0.5 0.7 <0.5 <br /> Purge 06/01/1992 <0.5 0.5 <0.5 DUP <br /> Purge 10/01/1992 <0.5 <0.5 <0.5 <br /> Purge 01/01/1993 <0.5 <0.5 <0.5 <br /> Purge 04/01/1993 <0.5 1 <0.5 <br /> Purge 08/01/1993 <0.5 <0.5 <0.5 <br /> Purge 01/01/1994 <0.5 0.6 <0.5 <br /> Purge 05/01/1994 <0.5 0.5 <0.5 <br /> Purge 05/01/1994 <0.5 0.6 <0.5 DUP <br /> Purge 07/01/1994 <0.5 1.8 <0.5 <br /> Purge 10/01/1994 <0.5 8.9 <0.5 CF:1.7 <br /> Purge 03/01/1995 <0.5 1.2 <0.5 Iso-Benzene:2.5,Tol:1.2;CF:1.2 <br /> Purge 07/01/1995 15 17 <0.5 CF:1.8 <br /> Purge 10/01/1995 <0.5 0.7 <0.5 CF:0.6 <br /> Purge 01/01/1996 <0.5 1.62 <0.5 CF:1.75 <br /> Purge 04/01/1996 1.2 13 <0.5 CF:17 <br /> Purge 07/01/1996 <0.5 1.4 <0.5 CF:28 <br /> Purge 10/01/1996 1 7.3 <0.5 CF:23 <br /> Purge 01/01/1997 0.9 0.6 <0.5 PCE:19; DCDF:1.2 <br /> Purge 04/01/1997 <0.5 3 <0.5 2CF:17 <br /> Purge 07/01/1997 <0.5 <0.5 <0.5 <br /> Purge 07/01/1997 <0.5 1.4 <0.5 DUP,'1,1,2,2-PCA:0.8;CF:15 <br /> Purge 11/01/1997 <0.5 1.1 <0.5 CF:13 <br /> Purge 11/01/1997 <0.5 0.9 <0.5 DUP,Chloroethane:1.2;CF:12 <br /> Purge 02/01/1998 <0.5 0.5 <0.5 CF:12 <br /> Purge 02/04/1998 <0.5 0.5 <0.5 CF:12 <br /> Purge 04/28/1998 <0.5 0.9 <0.5 CF:8.1 <br /> Purge 07/16/1998 <0.5 1.2 <0.5 CF:6.8 <br /> Purge 10/07/1998 <0.5 1 <0.5 CF:7 <br /> Purge 04/07/1999 <0.5 1.2 <0.5 CF:5.6 <br /> Purge 07/19/1999 <0.5 1 <0.5 CF:3.4 <br /> Purge 10/07/1999 <0.5 0.5 <0.5 CF:1.9 <br /> Purge 01/20/2000 <0.5 1 <0.5 CF:3.8 <br /> Purge 04/14/2000 0.8 2 <0.5 CF:9.4 <br /> Purge 07/13/2000 <0.5 1.2 <0.5 CF:5.4 <br /> Purge 07/13/2000 <0.5 1.4 <0.5 DUP2;CF:5.5 <br /> Page 11 of 93 <br />