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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 10/01/1991 57 270 <0.5 1,1-DCE:0.6,t-1,2-DCE:0.5,Tol:6.7;CF:1.8 <br /> Purge 03/01/1992 62 265 <0.5 t-1,2-DCE:0.5;CF:1.6 <br /> Purge 06/01/1992 62 404 <0.5 t-1,2-DCE:0.7 <br /> Purge 10/01/1992 <0.5 <0.5 <0.5 1,1,1-TCA:268,MC:54 <br /> Purge 01/01/1993 23 215 <0.5 CF:7.6 <br /> Purge 04/01/1993 30 190 <0.5 1,1-DCE:0.8 <br /> Purge 08/01/1993 13 71 <0.5 <br /> Purge 01/01/1994 17 124 <0.5 <br /> Purge 03/01/1995 2 110 <0.5 <br /> Purge 04/01/1996 28 100 <0.5 <br /> Purge 04/01/1997 8.1 66 <0.5 <br /> Purge 05/01/1998 3.2 32 <0.5 1,4-Diox:<1.7 <br /> Purge 04/08/1999 43 49 <0.5 <br /> Purge 04/17/2000 14 33 <0.5 <br /> Purge 04/13/2001 <2.0 7.5 <2.0 <br /> Purge 05/06/2002 2.5 17 <0.5 <br /> Purge 05/07/2003 41 270 <0.5 <br /> Purge - 04/24/2004 54 260 <0.5 1,1-DCE:0.6 <br /> PDB 131.5 04/26/2005 47 160 2.3 <br /> PDB 136.5 04/26/2005 43 140 2.5 <br /> PDB 131.5 A 04/18/2006 38 98 <2 <br /> PDB 131.5 A 05/10/2007 47 66 0.79 1,1-13CE:0.56 <br /> PDB 131.5 A 04/28/2008 34 80 5.5 <br /> Purge 131.5 A 11/05/2008 44 76 2.9 1,1-DCE:0.53 <br /> PDB 131.5 A 04/30/2009 42 150 <1 <br /> Low flow purge 131.5 A 04/26/2010 41 180 0.55 <br /> Low flow purge 131.5 A 08/02/2010 38 130 0.89 <br /> - 08/02/2010 39 130 <2.0 DUP <br /> PDB 131.5 SA 10/21/2010 38 110 <2.0 <br /> M-6C2 Purge - 03/01/1989 32 68 <5 MC:7.4 <br /> Purge 11/01/1989 33 41 <0.5 <br /> Purge 03/01/1990 33 49 <0.5 <br /> Purge 07/01/1990 35 52 <0.5 <br /> Purge 09/01/1990 <0.5 <0.5 <0.5 <br /> Purge 12/01/1990 43 42 <0.5 <br /> Purge 04/01/1991 55 37 <0.5 <br /> Purge 07/01/1991 59 35 <0.5 <br /> Purge 10/01/1991 94 47 <0.5 Tol:0.8;CF:1.8 <br /> Purge 03/01/1992 67 53 <0.5 <br /> Purge 06/01/1992 90 62 <0.5 <br /> Purge 10/01/1992 57 52 <0.5 <br /> Purge 01/01/1993 30 35 <0.5 <br /> Purge 01/01/1993 34 50 <0.5 DUP;CF:3 <br /> Purge 04/01/1993 36 31 <0.5 <br /> Purge 04/01/1993 45 42 <0.5 DUP <br /> Purge 08/01/1993 30 34 <0.5 <br /> Purge 08/01/1993 30 33 <0.5 DUP <br /> Purge 01/01/1994 24 37 <0.5 <br /> Purge 03/01/1995 35 56 <0.5 Iso-benzene:1.3,Tol:1.5;CF:0.5 <br /> Purge 04/01/1996 47 31 <0.5 <br /> Purge 04/01/1997 4 6.2 <0.5 <br /> Purge 04/28/1998 42 19 <0.5 <br /> Purge 04/06/1999 11 3.8 <0.5 <br /> Purge 04/12/2000 120 27 <0.5 CF:2 <br /> Purge 04/11/2001 51 11 <2.0 Tol:3.7 <br /> Purge 05/09/2002 100 26 <0.5 1,1-DCE:0.6 <br /> Purge 05/06/2003 110 29 <0.5 <br /> Purge - 04/24/2004 140 38 <0.5 1,1-DCE:1,t-1,2-DCE:0.8 <br /> PDB 179.5 04/26/2005 100 27 9 <br /> PDB 184.5 04/26/2005 94 26 14 <br /> Purge - 05/12/2005 100 35 <0.5 <br /> PDB 179.5 A 04/18/2006 100 39 <0.5 1,1-13CE:0.92;t-1,2-DCE:0.77 <br /> PDB 179.5 A 05/10/2007 96 45 <0.5 1,1-DCE:0.90 <br /> PDB 179.5 A 04/28/2008 65 40 0.59 1,1-13CE:0.57; t-1,2-DCE:0.52 <br /> Purge 179.5 A 11/05/2008 86 45 <0.5 1,1-DCE:0.82 <br /> PDB 179.5 A 04/30/2009 78 58 <0.5 CF:2.1;t-1,2-DCE:0.65;1,1-DCA:1.5;1,1-DCE: <br /> 0.82 <br /> Low flow purge 179.5 A 04/26/2010 75 54 <0.50 t-1,2-DCE:1.9; <br /> Low flow purge 179.5 A 08/02/2010 70 45 <0.50 t-1,2-DCE:1.2; <br /> Page 36 of 93 <br />