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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 04/01/1996 43 49 22 1,1-DCE:0.8 <br /> Purge 04/29/1998 24 10 <0.5 <br /> Purge 04/29/1998 19 7.6 <0.5 DUP2 <br /> Purge 04/07/1999 13 4.4 <0.5 <br /> Purge 04/13/2000 1.2 <0.5 <0.5 <br /> Purge 04/11/2001 3.3 <2.0 <2.0 Tol:2.6 <br /> Purge 05/07/2002 10 5.1 <0.5 <br /> Purge 05/06/2003 75 31 5.8 <br /> Purge - 04/21/2004 65 28 8.6 1,1-DCE:0.7 <br /> PDB 92.5 04/27/2005 67 34 <0.5 1,1-DCE:0.64,CCL4:0.64;t-1,2-DCE:1.1 <br /> PDB 92.5 04/27/2005 60 31 <0.5 DUP;1,1-DCE:0.58;t-1,2-DCE:0.95 <br /> PDB 97.5 04/27/2005 60 32 <0.5 1,1-DCE:0.54,CCL4:0.62;t-1,2-DCE:1.4 <br /> PDB 102.5 04/27/2005 62 32 <0.5 CCL4:0.64;t-1,2-DCE:2.6 <br /> PDB 107.5 04/27/2005 62 32 <0.5 1,1-DCE:0.60,CCL4:0.62;t-1,2-DCE:0.86 <br /> Purge - 05/09/2005 77 37 6.7 1,1-DCE:0.68 <br /> PDB 107.5 A 04/19/2006 62 28 6.5 <br /> PDB 107.5 A 04/25/2007 69 32 <0.5 1,1-DCE:0.53;Carbon tetrachloride:1.4 <br /> PDB 107.5 A 04/24/2008 59 31 <0.5 Carbon tetrachloride:1.8 <br /> PDB 107.5 A 04/10/2009 41 21 <0.5 <br /> PDB 107.5 A 04/19/2010 36 20 <0.50 <br /> M-96 Purge - 10/01/1987 2 0.9 <0.5 <br /> Purge 06/01/1988 NA <0.5 <0.5 1,1,1-TCA:0.8 <br /> Purge 03/01/1989 0.5 0.6 <0.5 <br /> Purge 03/01/1992 13 3.7 <0.5 <br /> Purge 01/01/1993 9.7 5.2 <0.5 <br /> Purge 01/01/1994 4.4 2.7 <0.5 <br /> Purge 07/01/1994 3.6 1.6 <0.5 <br /> Purge 03/01/1995 3 1.6 <0.5 <br /> Purge 04/01/1996 16 8.8 <0.5 <br /> Purge 04/01/1997 37 18 <0.5 <br /> Purge 04/29/1998 23 12 <0.5 CCL4:0.9;CF:0.7 <br /> Purge 06/11/1999 9.4 5.2 <0.5 <br /> Purge 04/18/2000 8.7 6.1 <0.5 <br /> Purge 04/11/2001 4.7 2.4 <2.0 Tol:2.9 <br /> Purge 05/07/2002 4.2 2.4 <0.5 <br /> Purge 05/05/2003 7.2 4 <0.5 CCL4:0.5 <br /> Purge 04/15/2004 9.6 4.6 <0.5 CCL4:0.8;CF:0.6 <br /> Purge - 04/15/2004 9.5 4.6 <0.5 DUP,CCL4:0.8;CF:0.5 <br /> PDB 29.5 04/27/2005 6.3 3.8 <0.5 CCL4:0.66 <br /> PDB 29.5 04/27/2005 6.4 4 <0.5 DUP;CCL4:0.64 <br /> PDB 34.5 04/27/2005 5.5 3.5 <0.5 CCL4:0.60 <br /> PDB 29.5 A 04/19/2006 16 8.6 <0.5 <br /> PDB 29.5 A 04/25/2007 8.1 4.5 <0.5 CF:1.3;Carbon Tetrachloride:2.0 <br /> PDB 29.5 A 04/24/2008 1.3 1.4 <0.5 Carbon tetrachloride:0.70 <br /> PDB 29.5 A 04/10/2009 0.82 <0.5 <0.5 <br /> - 04/10/2009 0.69 0.91 <0.5 DUP <br /> PDB 29.5 A 04/19/2010 1.7 1.50 <0.50 <br /> M-10A Purge - 06/01/1988 NA 1.6 <0.5 <br /> Purge 03/01/1989 <0.5 <0.5 <0.5 <br /> Purge 11/01/1989 <0.5 2.1 <0.5 <br /> Purge 03/01/1990 <0.5 0.9 <0.5 <br /> Purge 07/01/1990 <0.5 0.98 <0.5 <br /> Purge 09/01/1990 <0.5 2.2 <0.5 <br /> Purge 12/01/1990 <0.5 1.9 <0.5 <br /> Purge 04/01/1991 <0.5 6.5 <0.5 <br /> Purge 07/01/1991 <0.5 14 <0.5 <br /> Purge 10/01/1991 <0.5 8.7 <0.5 PCE:3.7 <br /> Purge 03/01/1992 <0.5 6.6 <0.5 PCE:0.6 <br /> Purge 06/01/1992 <0.5 22 <0.5 PCE:1.8 <br /> Purge 10/01/1992 <0.5 6.6 <0.5 PCE:0.6 <br /> Purge 01/01/1993 <0.5 6.2 <0.5 PCE:0.6 <br /> Purge 04/01/1993 <0.5 12 <0.5 PCE:1.3 <br /> Purge 08/01/1993 <0.5 3.7 <0.5 PCE:0.7 <br /> Purge 01/01/1994 <0.5 11 <0.5 PCE:4.5 <br /> Purge 03/01/1995 <0.5 11 <0.5 PCE:1.2 <br /> Purge 10/01/1995 <0.5 4.5 <0.5 PCE:1.2 <br /> Purge 04/01/1996 <0.5 10 <0.5 <br /> Purge 10/01/1996 <0.5 5.1 <0.5 CF:1.1 <br /> Purge 04/01/1997 <0.5 2.8 <0.5 PCE:0.7 <br /> Page 17 of 93 <br />