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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 164.5 Q 04/24/2008 1.3 2.6 <0.5
<br /> PDB 164.5 Q 07/22/2008 <0.5 2.4 <0.5
<br /> PDB 164.5 Q 10/16/2008 1.8 5 <0.5
<br /> PDB 164.5 Q 01/26/2009 <0.5 3.7 <0.5
<br /> PDB 164.5 Q 04/10/2009 <0.5 3.3 <0.5
<br /> PDB 164.5 Q 07/28/2009 <0.5 3.6 <0.5
<br /> PDB 164.5 Q 10/26/2009 0.72 1.5 <0.5
<br /> PDB 164.5 Q 01/14/2010 0.54 5.7 <0.50
<br /> Low flow purge 164.5 Q 04/27/2010 3.0 8.5 <0.50
<br /> Low flow purge 164.5 Q 08/03/2010 1.9 6.4 <0.50
<br /> Low flow purge 164.5 Q 10/21/2010 1.1 7.4 <0.50
<br /> M-11C1 Purge - 03/01/1989 92 32 <5
<br /> Purge 11/01/1989 <5 26 16 MC:6;CF:57
<br /> Purge 03/01/1990 130 37 21
<br /> Purge 07/01/1990 130 30 11
<br /> Purge 09/01/1990 101 36.2 9.8
<br /> Purge 09/01/1990 99.6 47.6 7.6 DUP
<br /> Purge 12/01/1990 137 45 15
<br /> Purge 12/01/1990 139 61.3 91.6 DUP
<br /> Purge 04/01/1991 250 56 77
<br /> Purge 07/01/1991 220 39 44
<br /> Purge 10/01/1991 290 53 55 1,1-DCE:2.1,t-1,2-DCE:1.3;CF:11
<br /> Purge 03/01/1992 25 60 48 1,1-DCE:0.8,MC:48,t-1,2-DCE:1.4
<br /> Purge 06/01/1992 309 60 86 t-1,2-DCE:1.9
<br /> Purge 10/01/1992 255 82 116 1,1-DCE:2.4
<br /> Purge 01/01/1993 229 77 70 1,1-DCE:2.6
<br /> Purge 04/01/1993 226 72 90 1,1-DCE:2.4
<br /> Purge 08/01/1993 193 54 80 1,1-DCE:1.9
<br /> Purge 01/01/1994 183 38 89 1,1-13CE:2
<br /> Purge 03/01/1995 160 56 190 111-DCE:2.4,Iso-benzene:1.1,t-1,2-DCE:2.6,
<br /> Tol:0.6
<br /> Purge 10/01/1995 19 7.1 6.6
<br /> Purge 04/01/1996 12 10 1.5
<br /> Purge 10/01/1996 130 55 110 1,1-DCE:2.6,t-1,2-DCE:3
<br /> Purge 04/01/1997 1.7 2.8 <0.5 1,1,1-TCA:0.8,1,2-DCA:1.5
<br /> Purge 04/01/1997 <5 <5 1.4 DUP,1,1,1-TCA:1.2,MC:0.7,1
<br /> Purge 11/01/1997 120 48 120 1,1-DCE:1.2,t-1,2-DCE:2.4
<br /> Purge 11/01/1997 110 44 130 DUP,1,1-DCE:1.2,t-1,2-DCE:2.4
<br /> Purge 04/29/1998 120 49 88 t 1,2-DCE:1.9; 1,1-DCE:1.6
<br /> Purge 10/06/1998 11 5.9 <0.5 1,4-Diox:<2.5
<br /> Purge 10/06/1998 11 5.7 <0.5 DUP3
<br /> Purge 04/07/1999 100 44 87 1,1-DCE:1.7,t-1,2-DCE:2
<br /> Purge 10/07/1999 96 34 42 1,1-DCE:1.2,t-1,2-DCE:1.4
<br /> Purge 10/07/1999 92 35 42 DUP 4,1,1-DCE:1.2,t-1,2-DCE:1.4
<br /> Purge 04/12/2000 95 38 110 1,1-DCE:1.5;t-1,2-DCE:1.5
<br /> Purge 04/12/2000 90 37 110 DUP 4;1,1-DCE:1.5;t-1,2-DCE:1.5
<br /> Purge 10/09/2000 82 34 160 1,1-DCE:1.5;t-1,2-DCE:1.9
<br /> Purge 10/10/2000 38 15 56 DUP 4;1,1-DCE:0.8;t-1,2-DCE:0.6;0.7
<br /> Purge 04/11/2001 38 13 55
<br /> Purge 10/10/2001 66 28 65 1,1-DCA 0.6,t1,2-DCE:0.9
<br /> Purge 05/08/2002 48 18 56 1,1-DCE:0.6,t1,2-DCE:0.7
<br /> Purge 05/01/2003 29 12 28
<br /> Purge 04/24/2004 24 10 25
<br /> Purge - 04/24/2004 24 10 25 DUP
<br /> PDB 149.5 04/20/2005 13 2.2 15
<br /> PDB 154.5 04/20/2005 13 2.2 15
<br /> PDB 159.5 04/20/2005 13 2 15
<br /> PDB 164.5 04/20/2005 13 2.1 14
<br /> Purge - 05/12/2005 7.8 3.5 12
<br /> PDB 164.5 A 04/12/2006 3.6 1.7 5.3
<br /> PDB 164.5 A 05/22/2007 1.9 0.76 1.2
<br /> PDB 164.5 A 04/22/2008 1.5 0.62 1.3
<br /> PDB 164.5 A 11/06/2008 1.9 0.74 1.9
<br /> - 11/06/2008 1.8 0.67 1.8 DUP
<br /> PDB 164.5 A 04/28/2009 1.1 <0.5 0.6
<br /> - 04/28/2009 1.3 0.58 0.89 DUP
<br /> PDB 164.5 A 04/19/2010 0.97 <0.50 0.55
<br /> M-13A Purge - 03/01/1989 <0.5 1.1 <0.5
<br /> Purge 11/01/1989 <0.5 <0.5 <0.5
<br /> Page 39 of 93
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