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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 10/11/2001 <0.5 1.3 <0.5 CM:2.2;CF:4.5
<br /> Purge 05/09/2002 <0.5 1.5 <0.5 CF:4.5
<br /> Purge 05/07/2003 <0.5 3 <0.5
<br /> Purge 05/07/2003 <0.5 2.9 <0.5 DUP
<br /> Purge - 04/23/2004 0.7 1.8 <0.5
<br /> PDB 88.5 04/27/2005 <0.5 1.9 <0.5 CF:1.4
<br /> PDB 93.5 04/27/2005 0.9 3 <0.5 CF:4.1
<br /> PDB 98.5 04/27/2005 1.1 3.3 <0.5 CF:4.8
<br /> PDB 103.5 04/27/2005 1.1 3.5 <0.5 CF:5
<br /> PDB 103.5 A 04/18/2006 0.54 2.5 <0.5 DCBMA:0.89;CF:480
<br /> PDB 103.5 A 05/10/2007 <2.5 <2.5 <2.5 CF:310
<br /> PDB 103.5 A 04/24/2008 0.54 0.86 <0.5
<br /> PDB 103.5 A 04/30/2009 <0.5 1.1 <0.5
<br /> PDB 103.5 A 04/19/2010 <0.50 0.83 <0.50
<br /> M-26 Purge - 01/01/1987 NA <0.5 <0.5 1,1,1-TCA:6.7,1,1-DCA:7.3,1,1-DCE:6.3;CF:
<br /> 0.8
<br /> Purge 02/01/1987 NA <0.5 <0.5 1,1,1-TCA:79,1,1-DCA:18,1,1-DCE:14;CF:1.1
<br /> Purge 04/01/1987 <0.5 <0.5 <0.5 1,1,1-TCA:7.9,1,1-DCA:19,1,1-DCE:12,1,2-
<br /> DCA:0.7;CF:2.9
<br /> Purge 07/01/1987 <0.5 <0.5 <0.5 1,1,1-TCA:5.2,1,1-DCA:15,1,2-DCA:0.5;CF:
<br /> 1.3
<br /> Purge 10/01/1987 <0.5 <0.5 <0.5 1,1,1-TCA:6.1,1,1-DCA:26,1,1-DCE:16;CF:1.6
<br /> Purge 06/01/1988 <0.5 <0.5 <0.5 1,1,1-TCA:3.4,1,1-DCA:19,1,1-DCE:12;CF:1.2
<br /> Purge 03/01/1989 <0.5 <0.5 <0.5 1,1,1-TCA:2,1,1-DCA:12,1,1-DCE:8.7;CF:2.6
<br /> Purge 03/01/1992 2 12 <0.5 CF:0.7
<br /> Purge 01/01/1993 <0.5 <0.5 <0.5 1,1-DCA:6.7,1,1-DCE:9.1;CF:24
<br /> Purge 01/01/1994 <0.5 <0.5 <0.5 1,1-DCA:8.8,1,1-DCE:7.9;CF:18
<br /> Purge 03/01/1995 <0.5 0.8 <0.5 1,1-DCA:13,1,1-DCE:5.6;CF:48
<br /> Purge 04/01/1996 <0.5 <0.5 <0.5 1,1-DCA:24,1,1-DCE:4.6;CF:72
<br /> Purge 04/01/1997 <0.5 <0.5 <0.5 1,1-DCA:19,1,1-DCE:0.8;CF:20
<br /> Purge 04/29/1998 <0.5 <0.5 <0.5 1,1-DCA:22; 1,1-DCE:1.1;CF:18
<br /> Purge 04/06/1999 <0.5 <0.5 <0.5 1,1-DCA:14;CF:16
<br /> Purge 04/18/2000 <0.5 <0.5 <0.5 1,1-DCA:15;CF:19
<br /> Purge 04/13/2001 <2.0 <2.0 <2.0 1,1-DCA:7.7;CF:6.6
<br /> Purge 05/09/2002 <0.5 <0.5 <0.5 1,1-DCA:14;CF:18
<br /> Purge 04/29/2003 <0.5 <0.5 <0.5 1,1-DCA:8.1;CF:14
<br /> Purge - 04/16/2004 <0.5 <0.5 <0.5 1,1-DCA:6.8;CF:12
<br /> PDB 31.5 04/27/2005 <0.5 <0.5 <0.5 1,1-DCA:6.1;CF:13
<br /> PDB 36.5 04/27/2005 <0.5 <0.5 <0.5 1,1-DCA:6.5;CF:13
<br /> Purge - 05/17/2005 <0.5 <0.5 <0.5 1,1-DCA:6.1;CF:13
<br /> PDB 36.5 A 04/18/2006 <0.5 <0.5 <0.5 1,1-DCA:3.1;CF:21
<br /> PDB 36.5 A 05/10/2007 <0.5 <0.5 <0.5 1,1-DCA:2.1;CF:36
<br /> PDB 36.5 A 04/24/2008 <0.5 <0.5 <0.5 1,1-DCA:0.70;CF:46
<br /> - 04/24/2008 <0.5 <0.5 <0.5 DUP;1,1-DCA:0.88;CF:51
<br /> PDB 36.5 A 04/30/2009 <0.5 <0.5 <0.5 1,1-DCA:0.98;CF:90;
<br /> PDB 36.5 A 04/19/2010 <0.50 <0.50 <0.50 CF:110;
<br /> - 04/19/2010 <0.50 <0.50 <0.50 CF:110;1,1-DCA:0.50;DUP
<br /> M-3A Purge 01/01/1987 NA 52 26 1,1-DCE:0.5
<br /> Purge 02/01/1987 NA 130 <0.5
<br /> Purge 04/01/1987 37 94 <0.5 1,1-DCE:0.6,1,2-DCA:1.9
<br /> Purge 07/01/1987 34 72 <0.5 1,2-DCA:0.8
<br /> Purge 10/01/1987 59 140 <5 CF:6
<br /> Purge 06/01/1988 45 100 <5
<br /> Purge 03/01/1989 21 47 <0.5
<br /> Purge 03/01/1992 21 24 <0.5 CF:0.6
<br /> Purge 03/01/1992 21 26 <0.5 DUP;CF:0.9
<br /> Purge 06/01/1992 76 58 25
<br /> Purge 10/01/1992 55 72 27 1,1-DCE:0.8,t-1,2-DCE:1.2
<br /> Purge 01/01/1993 17 23 <0.5
<br /> Purge 01/01/1993 16 23 <0.5 DUP
<br /> Purge 04/01/1993 41 54 7.9 1,1-DCE:0.7
<br /> Purge 08/01/1993 19 20 1.2
<br /> Purge 01/01/1994 33 58 <0.5 1,1-DCE:0.6,1,2-DCA:1.9
<br /> Purge 03/01/1995 18 30 2.9 Tol:1.8
<br /> Purge 04/01/1996 15 26 <0.5
<br /> Page 9 of 93
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