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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-1A Purge 01/01/1987 NA 7100 <50 <br /> Purge 02/01/1987 NA 7800 <50 <br /> Purge 04/01/1987 <50 9000 <50 <br /> Purge 07/01/1987 <50 10000 <50 <br /> Purge 10/01/1987 <50 9700 <50 <br /> Purge 06/01/1988 <500 5100 <500 <br /> Purge 03/01/1989 <50 2400 <50 <br /> Purge 11/01/1989 <0.5 230 <0.5 <br /> Purge 07/01/1990 <5 160 <5 <br /> Purge 07/01/1990 <5 230 <5 DUP <br /> Purge 09/01/1990 11.7 239 <0.5 1,1-DCA:0.8;CF:3.8 <br /> Purge 09/01/1990 1.7 530 <0.5 DUP <br /> Purge 12/01/1990 10 183 <0.5 CF:1 <br /> Purge 04/01/1991 <5 360 <5 <br /> Purge 04/01/1991 <0.5 290 <0.5 DUP <br /> Purge 10/01/1991 15 780 <0.5 PCE:0.6; 1,1-DCA:1.5,Tol:0.5;CF:2.9 <br /> Purge 03/01/1992 13 1050 <0.5 1,1-DCA:0.7;CF:1.6 <br /> Purge 03/01/1992 12 1020 <0.5 DUP,1,1-DCA:0.6;CF:1.6 <br /> Purge 06/01/1992 50 1620 <0.5 PCE:0.9;CF:3.2 <br /> Purge 10/01/1992 72 3380 <0.5 PCE:1.3;CF:5.8 <br /> Purge 01/01/1993 38 2900 <0.5 PCE:0.8;CF:3.8 <br /> Purge 04/01/1993 60 2600 <0.5 PCE:1.4;CF:11 <br /> Purge 04/01/1993 59 2600 <0.5 PCE:0.3;CF:8.7 <br /> Purge 08/01/1993 15 1660 <0.5 CF:5.2 <br /> Purge 08/01/1993 19 3400 <0.5 DUP; PCE:1.4;CF:6.4 <br /> Purge 01/01/1994 24 3150 <0.5 PCE:1.6;CF:4.2 <br /> Purge 05/01/1994 20 4000 <0.5 PCE:1.4;CF:4.7 <br /> Purge 03/01/1995 6.5 1180 <0.5 CF:1.5 <br /> Purge 10/01/1995 17 1800 <0.5 CF:1.6 <br /> Purge 10/01/1995 16 1800 <0.5 DUP;CF:1.5 <br /> Purge 04/01/1996 19 1500 <0.5 CF:1.4 <br /> Purge 10/01/1996 22 650 <0.5 CF:0.9 <br /> Purge 04/01/1997 16 440 <0.5 <br /> Purge 07/01/1997 15 230 <0.5 <br /> Purge 05/01/1998 22 460 <0.5 CF:0.9 <br /> Purge 05/01/1998 4.3 330 <0.5 DUP1;CF:1.3 <br /> Purge 10/07/1998 9.9 260 <0.5 1,4-Diox:<2.5 <br /> Purge 04/09/1999 4.5 120 <0.5 <br /> Purge 10/13/1999 2.4 87 <0.5 <br /> Purge 04/10/2000 21 120 <0.5 CF:1.4 <br /> Purge 04/10/2000 21 160 <0.5 DUP;CF:1.6 <br /> Purge 07/10/2000 15 140 <0.5 CF:1.2 <br /> Purge 10/11/2000 22 180 <0.5 <br /> Purge 04/13/2001 9.9 110 <2.0 <br /> Purge 04/13/2001 8.8 100 <2.0 DUP#7 <br /> Purge 10/11/2001 11 79 <0.5 CM:2.1 <br /> Purge 01/23/2002 0.5 2.8 <0.5 PCE:2.5 <br /> Purge 05/09/2002 7.6 66 <0.5 <br /> Purge 04/29/2003 8.2 63 0.6 CF:1.9 <br /> Purge - 04/26/2004 7.2 38 1.4 CF:1.5 <br /> PDB 103.5 04/27/2005 4.8 43 0.77 1,1-DCA:0.95;CF:3.1 <br /> PDB 108.5 04/27/2005 5.2 43 0.8 1,1-DCA:0.90,BDCMA:0.63;CF:3 <br /> PDB 113.5 04/27/2005 5.2 43 0.94 1,1-DCA:0.58;CF:1.9 <br /> PDB 118.5 04/27/2005 5.2 48 0.95 1,1-DCA:0.67;CF:2.3 <br /> PDB 118.5 04/18/2006 2.7 14 0.55 CF:1.2 <br /> PDB 118.5 04/28/2007 3 40 <0.5 1,1-DCA:5.1;1,1-DCE:0.51,CF:3.8 <br /> PDB 118.5 05/10/2007 13 60 <0.5 CF:2.1 <br /> PDB 118.5 02/27/2008 7.2 90 <0.5 <br /> PDB 118.5 04/28/2008 3 40 <0.5 1,1-DCA:5.1;1,1-DCE:0.51,CF:3.8 <br /> PDB 118.5 07/22/2008 2.1 38 <0.5 1,1-DCA:6.0;1,1-13CE:0.56 <br /> PDB 118.5 10/17/2008 1.8 18 <0.5 1,1-DCA:5.3;1,1-13CE:0.50 <br /> PDB 118.5 02/09/2009 3.7 24 <0.5 1,1-DCA:4.6 <br /> PDB 118.5 04/30/2009 1.8 17 <0.5 1,1-DCA:2.5 <br /> PDB 118.5 07/29/2009 1 13 <0.5 CF:2.1;1,1-DCA:1.5 <br /> PDB 118.5 10/26/2009 2.2 14 <0.5 1,1-DCA:1.7 <br /> PDB 118.5 A(e) 01/18/2010 3.3 19 <0.50 1,1-DCA:2.3 <br /> PDB 118.5 A(e) 04/19/2010 3.1 20 <0.50 CF:1.3;1,1-DCA:2.0 <br /> PDB 118.5 Q 07/06/2010 1.3 14 <0.50 CF:2.8;1,1-DCA:0.99 <br /> PDB 118.5 Q 10/21/2010 1.6 11 <0.50 1,1-DCA:1.6 <br /> Page 7 of 93 <br />