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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 /> M-1B Purge 01/01/1987 NA 0.5 <0.5 <br /> Purge 02/01/1987 NA 3.6 <0.5 <br /> Purge 04/01/1987 <0.5 1.2 <0.5 <br /> Purge 07/01/1987 <0.5 1.6 <0.5 <br /> Purge 10/01/1987 <0.5 3.5 <0.5 <br /> Purge 06/01/1988 <0.5 1.5 <0.5 <br /> Purge 03/01/1989 <0.5 1.2 <0.5 <br /> Purge 03/01/1992 <0.5 2.1 <0.5 <br /> Purge 01/01/1993 <0.5 34 <0.5 <br /> Purge 01/01/1993 <0.5 25 <0.5 DUP <br /> Purge 01/01/1994 <0.5 24 <0.5 <br /> Purge 03/01/1995 <0.5 15 <0.5 <br /> Purge 04/01/1996 <0.5 8.8 <0.5 <br /> Purge 04/01/1997 <0.5 43 <0.5 <br /> Purge 05/01/1998 <0.5 83 <0.5 <br /> Purge 04/07/1999 <0.5 55 <0.5 <br /> Purge 04/07/1999 <0.5 56 <0.5 DUP <br /> Purge 04/18/2000 <0.5 140 <0.5 <br /> Purge 04/18/2000 <0.5 140 <0.5 DUP 1 <br /> Purge 04/12/2001 <2.0 120 <2.0 <br /> Purge 05/09/2002 <0.5 120 <0.5 <br /> Purge 04/29/2003 <0.5 220 <0.5 <br /> Purge - 04/15/2004 <0.5 290 <0.5 CF:0.6;PCE:0.6 <br /> PDB 33.5 04/27/2005 <5.0 490 <5.0 <br /> PDB 38.5 04/27/2005 <5.0 490 <5.0 <br /> Purge - 05/17/2005 <5.0 590 <5.0 <br /> PDB 38.5 A 04/18/2006 760 290 260 <br /> PDB 38.5 A 05/10/2007 14 590 <5 <br /> PDB 38.5 A(e) 02/14/2008 8.7 200 <2.0 CF:5.7 <br /> PDB 38.5 A(e) 04/28/2008 <5 370 <5 <br /> PDB 38.5 A(e) 07/22/2008 <5 260 <5 <br /> PDB 38.5 A(e) 10/17/2008 <2.5 160 <2.5 CF:5.8 <br /> PDB 38.5 A 02/09/2009 <2 170 <2 <br /> PDB 38.5 A(e) 02/09/2009 <2 160 <2 DUP <br /> PDB 38.5 A(e) 04/30/2009 <0.5 440 <0.5 CF:6.9;1,1-DCA:16;1,1-13CE:2.5 <br /> PDB 38.5 A(e) 07/29/2009 <0.5 320 <0.5 CF:7.6;1,1-DCA:23;1,1-13CE:3.7 <br /> PDB 38.5 A(e) 10/26/2009 <0.5 250 <0.5 CF:7.1;1,1-DCA:18;1,1-13CE:2.9 <br /> PDB 38.5 A(e) 01/18/2010 <5.0 140 <5.0 <br /> PDB 38.5 A(e) 04/19/2010 <0.50 130 <0.50 CF:8.4;1,1-13CE:1.8;1,1-DCA:14 <br /> Low-flow purge 38.5 Q 08/03/2010 <1.0 140 <0.50 CF:8.0;1,1-DCE:2.3;1,1-DCA:14 <br /> - 08/03/2010 <0.50 140 <0.50 CF:7.6;1,1-13CE:1.7;1,1-DCA:13;DUP <br /> Low-flow purge 38.5 Q 10/21/2010 <0.50 130 <0.50 CF:2.6;1,1-13CE:0.58;1,1-DCA:4.0 <br /> - 10/21/2010 <0.50 140 <0.50 CF:2.8;1,1-13CE:0.61;1,1-DCA:4.3;DUP <br /> M-2A Purge 01/01/1987 NA 46 <0.5 <br /> Purge 02/01/1987 NA 93 <0.5 <br /> Purge 04/01/1987 8.6 56 <0.5 1,1-DCA:1.1 <br /> Purge 07/01/1987 5.2 29 <0.5 CF:0.8 <br /> Purge 10/01/1987 5.9 38 <0.5 1,1-DCA:6.3,1,1-13CE:1.1,MC:0.6;CF:0.5 <br /> Purge 06/01/1988 2.6 24 <0.5 1,1-DCA:2.7,1,1-13CE:0.5 <br /> Purge 03/01/1989 2.6 25 <0.5 CF:1.4 <br /> Purge 03/01/1992 <0.5 <0.5 <0.5 1,1,1-TCA:0.6,1,1-DCA:6,1,1-DCE:6.8;CF:13 <br /> Purge 01/01/1993 1.1 17 <0.5 CF:0.8 <br /> Purge 01/01/1994 2.3 48 <0.5 1,1-DCA:1.4,1,1-13CE:0.8;CF:2.8 <br /> Purge 03/01/1995 0.8 43 <0.5 1,1-DCA:0.6,1,1-13CE:0.5;CF:4.1 <br /> Purge 10/01/1995 <0.5 10 <0.5 CF:12 <br /> Purge 04/01/1996 1.3 28 <0.5 1,1-DCA:0.5;CF:9.8 <br /> Purge 10/01/1996 3 21 <0.5 <br /> Purge 04/01/1997 1.9 36 <0.5 <br /> Purge 04/01/1997 1.9 36 <0.5 DUP <br /> Purge 11/01/1997 0.7 13 <0.5 1,1-DCA:1.3;CF:19 <br /> Purge 04/29/1998 0.5 6.7 <0.5 1,1-DCA:0.8;CF:14 <br /> Purge 10/06/1998 <0.5 4.2 <0.5 CF:9.7 <br /> Purge 04/08/1999 0.5 4.1 <0.5 CF:7.4 <br /> Purge 10/08/1999 <0.5 4.1 <0.5 CF:8.7 <br /> Purge 04/10/2000 1.2 6.2 0.7 CF:0.7 <br /> Purge 07/10/2000 1.1 5.5 <0.5 CF:1.1 <br /> Purge 10/11/2000 <0.5 2.3 <0.5 1,1-DCA:0.7;CF:13 <br /> Purge 04/13/2001 <2.0 <2.0 <2.0 CF:5.1 <br /> Page 8 of 93 <br />