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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 04/11/2001 <2.0 <2.0 <2.0 <br /> Purge 05/07/2002 <0.5 <0.5 <0.5 <br /> Purge 10/30/2003 <0.5 <0.5 <0.5 <br /> Purge - 10/30/2003 <0.5 <0.5 <0.5 DUP <br /> PDB 32.5 04/20/2005 <0.5 <0.5 <0.5 <br /> PDB 37.5 04/20/2005 <0.5 <0.5 <0.5 <br /> PDB 42.5 04/20/2005 <0.5 <0.5 <0.5 <br /> PDB 42.5 04/25/2007 <0.5 <0.5 <0.5 <br /> PDB 42.5 B 04/10/2009 <0.5 0.62 <0.5 <br /> M-22A Purge - 03/01/1992 59 175 <0.5 <br /> Purge 06/01/1992 57 190 <0.5 CF:0.8 <br /> Purge 10/01/1992 55 187 <0.5 <br /> Purge 01/01/1993 43 138 <0.5 <br /> Purge 01/01/1993 4.8 148 <0.5 DUP <br /> Purge 04/01/1993 <0.5 <0.5 <0.5 <br /> Purge 08/01/1993 37 122 <0.5 <br /> Purge 01/01/1994 40 121 <0.5 1,1-DCE:0.5 <br /> Purge 04/01/1996 50 66 <0.5 <br /> Purge 04/01/1997 2.9 2.2 <0.5 1,2-DCP:2.2; CCL4:14;CF:4.2 <br /> Purge 04/28/1998 <0.5 1 <0.5 <br /> Purge 04/07/1999 <0.5 0.6 <0.5 <br /> Purge 04/13/2000 20 17 4.2 <br /> Purge 04/12/2001 17 16 3.7 <br /> Purge 05/09/2002 <0.5 1.1 <0.5 <br /> Purge 05/09/2002 <0.5 1 <0.5 DUP <br /> Purge 05/07/2003 15 34 4.2 <br /> Purge 04/21/2004 12 30 5 <br /> Purge - 05/12/2005 9.4 37 1.6 <br /> PDB 103.1 05/12/2005 5.2 7.7 40 <br /> PDB 103.1 05/03/2006 15 60 <0.5 <br /> PDB 103 05/10/2007 19 73 <0.5 1,1-DCE:0.53 <br /> PDB 108 05/10/2007 19 69 <0.5 <br /> PDB 113 05/10/2007 7.9 40 <0.5 <br /> PDB 118 05/10/2007 7.5 40 <0.5 <br /> PDB 103 A 04/24/2008 7.9 23 <0.5 <br /> PDB 103 A 04/30/2009 15 42 <0.5 <br /> PDB 103 A 04/19/2010 15 59 <0.50 1,1-DCE:0.61 <br /> M-22B Purge - 03/01/1992 2.5 104 <0.5 CF:1 <br /> Purge 06/01/1992 3.1 161 <0.5 CF:1.6 <br /> Purge 10/01/1992 2.9 216 <0.5 CF:1.4 <br /> Purge 01/01/1993 2.3 106 <0.5 CF:1.7 <br /> Purge 04/01/1993 3 140 <0.5 CF:2.6 <br /> Purge 08/01/1993 2.2 130 <0.5 CF:0.5 <br /> Purge 01/01/1994 3.2 134 <0.5 CF:1.1 <br /> Purge 04/01/1996 39 110 <0.5 <br /> Purge 04/01/1997 1.1 53 <0.5 <br /> Purge 04/28/1998 <0.5 6.5 <0.5 <br /> Purge 04/06/1999 0.5 24 <0.5 <br /> Purge 04/18/2000 <0.5 7.8 <0.5 <br /> Purge 04/12/2001 <2.0 22 <2.0 <br /> Purge 05/09/2002 <0.5 16 <0.5 <br /> Purge 10/28/2003 <0.5 15 <0.5 <br /> Purge - 10/28/2003 <0.5 18 <0.5 DUP <br /> PDB 27.5 04/27/2005 1.2 20 <0.5 <br /> PDB 32.5 04/27/2005 0.79 29 <0.5 CF:0.61 <br /> PDB 37.5 04/27/2005 0.85 29 <0.5 CF:0.62 <br /> PDB 37.5 04/27/2005 0.81 30 <0.5 DUP;CF:0.63 <br /> PDB 42.5 04/27/2005 0.76 29 <0.5 CF:0.62 <br /> Purge - 05/10/2005 0.66 21 <0.5 <br /> PDB 37.5 05/10/2007 0.63 21 <0.5 <br /> PDB 37.5 B 04/30/2009 <0.5 26 <0.5 <br /> M-23A Purge - 10/01/1992 3.1 0.7 <0.5 CF:0.7 <br /> Purge 01/01/1993 34 10 <0.5 <br /> Purge 04/01/1993 2.6 5.2 <0.5 <br /> Purge 08/01/1993 16 2.4 <0.5 <br /> Purge 01/01/1994 14 2.5 <0.5 <br /> Purge 04/01/1996 4 1 <0.5 <br /> Purge 10/01/1996 2.7 0.7 <0.5 <br /> Purge 04/01/1997 4.1 1.1 <0.5 <br /> Page 27 of 93 <br />