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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 07/23/2003 5.6 11 <0.5 CF:9.6 <br /> Purge 10/28/2003 5.4 16 <0.5 CF:11 <br /> Purge 01/22/2004 3.7 11 <0.5 CF:18 <br /> Purge 04/13/2004 3.1 10 <0.5 CF:21 <br /> Purge 07/16/2004 2.8 9 <0.5 CF:22 <br /> Purge 10/13/2004 3 5.8 <0.5 CF:3.4 <br /> Purge 02/01/2005 4.1 10 <0.5 CF:4.2 <br /> Purge 05/19/2005 3.3 7.6 <0.5 CF:3.3 <br /> Purge 08/03/2005 2.3 6.4 <0.5 CF:3.9 <br /> Purge 10/13/2005 3.7 8.5 <0.5 CF:7.1 <br /> Purge 01/19/2006 2.7 4.8 <0.5 CF:1 <br /> Purge 04/17/2006 2.2 3.5 <0.5 DUP;CF:1.1 <br /> Purge 4/1706 2.2 3.6 <0.5 CF:1.1 <br /> Purge 07/21/2006 2 4 <0.5 CF:2.5 <br /> Purge 10/19/2006 1.5 2.7 <0.5 <br /> Purge Q 10/19/2006 1.5 2.8 <0.5 DUP <br /> Purge Q 02/13/2007 0.97 2.1 <0.5 <br /> Purge Q 04/27/2007 1.3 2.5 <0.5 <br /> Purge Q 07/12/2007 1.4 2.9 <0.5 <br /> 10/24/2007 1.2 2.5 <0.5 DUP <br /> Purge Q 10/24/2007 1.2 2.5 <0.5 <br /> Purge Q 02/24/2008 0.92 2.1 <0.5 <br /> Purge Q 04/30/2008 0.76 1.1 <0.5 <br /> Purge Q 07/28/2008 0.74 1.3 <0.5 <br /> Purge Q 10/30/2008 <0.5 1.2 <0.5 <br /> Purge Q 02/24/2009 0.72 1.7 <0.5 <br /> Purge Q 04/29/2009 0.59 1.5 <0.5 <br /> Purge Q 08/05/2009 0.51 1.3 <0.5 <br /> Purge Q 10/27/2009 <0.5 0.92 <0.5 <br /> Purge Q 01/28/2010 <0.50 0.85 <0.50 <br /> Purge Q 04/13/2010 <0.50 0.53 <0.50 <br /> Purge Q 08/04/2010 <0.50 0.66 <0.50 <br /> Purge Q 11/08/2010 <0.50 0.56 <0.50 <br /> M-5C2 Purge 11/28/2000 <0.5 0.6 <0.5 From ERM report <br /> Purge 01/10/2001 <1.0 <1.0 <1.0 <br /> Purge 04/16/2001 <2.0 <2.0 <2.0 <br /> Purge 07/12/2001 <0.5 <0.5 <0.5 CM:1.5 <br /> Purge 10/09/2001 <0.5 <0.5 <0.5 <br /> Purge 01/21/2002 <0.5 <0.5 <0.5 <br /> Purge 05/07/2002 <0.5 <0.5 <0.5 <br /> Purge 05/07/2002 <0.5 <0.5 <0.5 DUP <br /> Purge 10/10/2002 <0.5 <0.5 <0.5 <br /> Purge 05/02/2003 <0.5 0.5 <0.5 <br /> Purge 10/28/2003 <0.5 0.5 <0.5 <br /> Purge 04/13/2004 <0.5 0.5 <0.5 <br /> Purge - 10/13/2004 <0.5 0.9 <0.5 <br /> PDB 182.5 04/27/2005 0.91 2 <0.5 <br /> PDB 187.5 04/27/2005 0.87 2 <0.5 <br /> PDB 182.5 10/28/2005 1.5 3.7 <0.5 CF:1 <br /> PDB 182.5 04/25/2006 <0.5 0.61 <0.5 <br /> PDB 182.5 SA 10/17/2006 2.6 5.7 <0.5 CF:1.9 <br /> PDB 182.5 SA 05/10/2007 1.2 3.2 <0.5 <br /> PDB 182.5 SA 10/10/2007 0.86 1.9 <0.5 <br /> PDB 182.5 SA 04/23/2008 0.87 2.2 <0.5 <br /> PDB 182.5 SA 10/30/2008 0.6 1.6 <0.5 <br /> PDB 182.5 SA 04/23/2009 0.57 1.4 <0.5 <br /> PDB 182.5 SA 10/26/2009 <0.5 4.1 <0.5 <br /> PDB 182.5 SA 04/12/2010 0.51 1.3 <0.50 <br /> PDB 182.5 SA 10/15/2010 0.54 1.2 <0.50 <br /> M-6C1 Purge - 06/01/1988 <50 1200 <50 <br /> Purge 03/01/1989 <5 160 <5 <br /> Purge 03/01/1989 <5 160 <5 DUP <br /> Purge 11/01/1989 <5 81 <5 <br /> Purge 03/01/1990 12 180 <5 <br /> Purge 07/01/1990 42 360 <0.5 <br /> Purge 09/01/1990 24.6 186 <0.5 <br /> Purge 12/01/1990 17 131 <0.5 <br /> Purge 04/01/1991 17 55 <0.5 CF:7.5 <br /> Purge 07/01/1991 62 17 <0.5 t-1,2-DCE:0.8 <br /> Page 35 of 93 <br />