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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 /> PDB 118.3 A 04/19/2006 <0.5 <0.5 <0.5 <br /> PDB 128.3 A 04/26/2007 <0.5 <0.5 <0.5 <br /> PDB 128.3 A 04/22/2008 <0.5 <0.5 <0.5 <br /> - 04/22/2008 <0.5 <0.5 <0.5 DUP <br /> PDB 128.3 A 04/28/2009 <0.5 <0.5 <0.5 <br /> PDB 128.3 A 1 04/19/2010 1 <0.50 1 <0.50 1 <0.50 <br /> M-24C1 March 3-4,1999 Simulprobe Groundwater Samples Collected during M-24C1 Installation <br /> Purge - 03/03/1999 <0.5 <0.5 <0.5 30 feet bgs <br /> Purge 03/04/1999 52 20 <0.5 90 feet bgs <br /> Purge 04/08/1999 8.4 2.8 <0.5 <br /> Purge 04/08/1999 8.1 2.7 <0.5 DUP <br /> Purge 07/20/1999 11 2.9 <0.5 <br /> Purge 10/08/1999 11 3 <0.5 <br /> Purge 01/20/2000 11 2.8 <0.5 <br /> Purge 04/11/2000 11 2.9 <0.5 <br /> Purge 07/13/2000 8.7 2.4 <0.5 <br /> Purge 10/10/2000 7.6 2.2 <0.5 <br /> Purge 01/09/2001 9.1 2.1 <1.0 <br /> Purge 04/11/2001 3.7 <2.0 <2.0 Tol:2.9 <br /> Purge 07/11/2001 9.8 2.1 <0.5 CM:0.7 <br /> Purge 10/10/2001 7 1.5 <0.5 CM:0.6 <br /> Purge 01/22/2002 8.1 1.8 <0.5 <br /> Purge 05/07/2002 7.7 1.8 <0.5 CM:1.0 <br /> Purge 05/05/2003 8.3 2 <0.5 <br /> Purge - 04/16/2004 14 4.2 <0.5 <br /> PDB 136.5 04/27/2005 3 1.1 <0.5 <br /> PDB 141.5 04/27/2005 2.2 0.92 <0.5 <br /> PDB 146.5 04/27/2005 2.3 0.91 <0.5 <br /> Purge - 05/10/2005 7.7 2 <0.5 <br /> PDB 136.5 A 04/19/2006 0.91 <0.5 <0.5 <br /> PDB 136.5 A 04/26/2007 7.9 2.7 <0.5 <br /> PDB 136.5 A 04/24/2008 2.3 1 <0.5 <br /> PDB 136.5 A 04/10/2009 6.8 2.4 <0.5 <br /> - 04/10/2009 6.9 2.3 <0.5 DUP <br /> PDB 136.5 A 04/19/2010 15 5.1 <0.50 <br /> M-25C1 June 1-3,1999 Simulprobe Groundwater Samples Collected during M-25C1 Installation <br /> Purge - 06/01/1999 <0.5 870 <0.5 38 feet bgs <br /> Purge 06/02/1999 1.2 1400 <0.5 44 feet bgs <br /> Purge 06/02/1999 6.5 6000 <0.5 56 feet bgs;CF:1.9 <br /> Purge 06/02/1999 <0.5 640 <0.5 64 feet bgs <br /> Purge 06/03/1999 <0.5 31 <0.5 74 feet bgs <br /> Purge 06/03/1999 <0.5 210 <0.5 88 feet bgs;CF:0.9 <br /> Purge 06/03/1999 1.4 170 <0.5 1,1-DCA:40,1,1-DCE:4.8;99 feet bgs;CF:90 <br /> Purge 06/08/1999 0.7 4.3 <0.5 <br /> Purge 07/16/1999 37 79 <0.5 <br /> Purge 07/16/1999 40 78 <0.5 DUP;CF:1.1 <br /> Purge 10/15/1999 57 48 <0.5 <br /> Purge 01/21/2000 72 77 <0.5 1,1-DCE:0.8 <br /> Purge 04/14/2000 58 48 <0.5 CF:1.1 <br /> Purge 07/13/2000 43 34 <0.5 CF:0.7 <br /> Purge 10/11/2000 48 37 <0.5 1,1-DCE:0.5;CF:1.3 <br /> Purge 01/09/2001 32 23 <1.0 <br /> Purge 04/13/2001 17 13 <2.0 <br /> Purge 07/11/2001 61 38 <0.5 <br /> Purge 10/11/2001 66 36 <0.5 CM:1.1,t1,2 DCE:0.6 <br /> Purge 01/23/2002 46 25 <0.5 <br /> Purge 05/09/2002 27 16 <0.5 <br /> Purge 04/29/2003 92 62 <0.5 <br /> Purge - 04/26/2004 89 54 <0.5 1,1-DCE:0.8 <br /> PDB 150.5 04/27/2005 44 96 <0.5 1,1-DCA:1.4,1,1-DCE:0.71;CF:4.6 <br /> PDB 150.5 04/27/2005 47 99 <0.5 DUP;1,1-DCA:1.4,1,1-DCE:0.73;CF:5;t-1,2- <br /> DCE:0.55 <br /> PDB 155.5 04/27/2005 45 91 <0.5 1,1-DCA:1.3,1,1-DCE:0.59;CF:4.7;t-1,2-DCE: <br /> 1.2 <br /> PDB 150.5 A 04/18/2006 15 29 <0.5 CF:1 <br /> PDB 150.5 A 05/10/2007 8.2 9.3 <0.5 <br /> PDB 150.5 A 04/28/2008 8.8 14 <0.5 <br /> PDB 150.5 A 04/30/2009 10 8.8 <0.5 <br /> Low flow purge 150.5 A 04/26/2010 9.3 15 <0.50 <br /> Page 45 of 93 <br />