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Appendix B: Historical Analytical Results for Volatile Organic Compounds <br /> 2013 Annual Report <br /> Former Nestle USA, Inc. Facility, Ripon, CA <br /> USEPA Methods 8010,8021,8260 and 524 in micrograms per liter lµg/L) <br /> Well Sampling Average PDB Current MRP <br /> Name Method Depth(ft bgs) Sampling Sample Date cis-1,2-DCE TCE VC Comments/Other Detected VOC's <br /> Frequency <br /> Purge 03/01/95 41 26 <0.50 Iso-benzene:1.4,Tol:0.7 <br /> Pure 04/01/96 43 49 22 1,1-DCE:0.8 <br /> Purge 04/29/98 24 10 <0.50 <br /> Pure 04/29/98 19 7.6 <0.50 Duplicate Sample;2 <br /> Purge 04/07/99 13 4.4 <0.5 <br /> Pure 04/13/00 1.2 <0.50 <0.50 <br /> Purge 04/11/01 3.3 <2.0 <2.0 Tol:2.6 <br /> Pure 05/07/02 10 5.1 <0.50 <br /> Purge 05/06/03 75 31 5.8 <br /> Purge - 04/21/04 65 28 8.6 1,1-DCE:0.7 <br /> PDB 92.5 04/27/05 67 34 <0.50 1,1-DCE:0.64,CCL4:0.64;t-1,2-DCE:1.1 <br /> PDB 92.5 04/27/05 60 31 <0.50 Duplicate Sample;1,1-DCE:0.58;t-1,2-DCE:0.95 <br /> PDB 97.5 04/27/05 60 32 <0.50 1,1-DCE:0.54,CCL4:0.62;t-1,2-DCE:1.4 <br /> PDB 102.5 04/27/05 62 32 <0.50 CCL4:0.64;t-1,2-DCE:2.6 <br /> PDB 107.5 04/27/05 62 32 <0.50 1,1-DCE:0.60,CCL4:0.62;t-1,2-DCE:0.86 <br /> Purge - 05/09/05 77 37 6.7 1,1-DCE:0.68 <br /> PDB 107.5 A 04/19/06 62 28 6.5 <br /> PDB 107.5 A 04/25/07 69 32 <0.50 1,1-DCE:0.53;Carbon tetrachloride:1.4 <br /> PDB 107.5 A 04/24/08 59 31 <0.50 Carbon tetrachloride:1.8 <br /> PDB 107.5 A 04/10/09 41 21 <0.50 <br /> PDB 107.5 A 04/19/10 36 20 <0.50 <br /> PDB 107.5 A 04/12/11 21 10 0.50 <br /> PDB 107.5 A 04/10/12 21 8.5 0.53 <br /> PDB 107.5 A 04/12/13 19 7.7 0.63 <br /> M-913 Purge - 10/01/87 2 0.9 <0.50 <br /> Pure 06/01/88 NA <0.50 <0.50 1,1,1-TCA:0.8 <br /> Purge 03/01/89 0.5 0.6 <0.50 <br /> Pure 03/01/92 13 3.7 <0.50 <br /> Purge 01/01/93 9.7 5.2 <0.50 <br /> Pure 01/01/94 4.4 2.7 <0.50 <br /> Purge 07/01/94 3.6 1.6 <0.50 <br /> Pure 03/01/95 3 1.6 <0.50 <br /> Purge 04/01/96 16 8.8 <0.50 <br /> Pure 04/01/97 37 18 <0.50 <br /> Purge 04/29/98 23 12 <0.50 CCL4:0.9;CF:0.7 <br /> Pure 06/11/99 9.4 5.2 <0.5 <br /> Purge 04/18/00 8.7 6.1 <0.50 <br /> Pure 04/11/01 4.7 2.4 <2.0 Tol:2.9 <br /> Purge 05/07/02 4.2 2.4 <0.50 <br /> Pure 05/05/03 7.2 4 <0.50 CCL4:0.5 <br /> Purge 04/15/04 9.6 4.6 <0.50 CCL4:0.8;CF:0.6 <br /> Purge - 04/15/04 9.5 4.6 <0.50 Duplicate Sample;,CCL4:0.8;CF:0.5 <br /> PDB 29.5 04/27/05 6.3 3.8 <0.50 CCL4:0.66 <br /> PDB 29.5 04/27/05 6.4 4 <0.50 Duplicate Sample;CCL4:0.64 <br /> PDB 34.5 04/27/05 5.5 3.5 <0.50 CCL4:0.60 <br /> PDB 29.5 A 04/19/06 16 8.6 <0.50 <br /> PDB 29.5 A 04/25/07 8.1 4.5 <0.50 CF:1.3;Carbon Tetrachloride:2.0 <br /> PDB 29.5 A 04/24/08 1.3 1.4 <0.50 Carbon tetrachloride:0.70 <br /> PDB 29.5 A 04/10/09 0.82 <0.50 <0.50 <br /> - 04/10/09 0.69 0.91 <0.50 Duplicate Sample; <br /> PDB 29.5 A 04/19/10 1.7 1.50 <0.50 <br /> PDB 29.5 A 04/12/11 1.7 1.9 <0.50 Carbon Tetrachloride:0.71 <br /> PDB 29.5 A 04/10/12 1.4 1.6 <0.50 <br /> PDB 29.5 A 04/12/13 0.74 1.4 <0.50 PCE:0.77; <br /> M-10A Purge - 06/01/88 NA 1.6 <0.50 <br /> Pure 03/01/89 <0.50 <0.50 <0.50 <br /> Purge 11/01/89 <0.50 2.1 <0.50 <br /> Pure 03/01/90 <0.50 0.9 <0.50 <br /> Purge 07/01/90 <0.50 0.98 <0.50 <br /> Pure 09/01/90 <0.50 2.2 <0.50 <br /> Purge 12/01/90 <0.50 1.9 <0.50 <br /> Pure 04/01/91 <0.50 6.5 <0.50 <br /> Purge 07/01/91 <0.50 14 <0.50 <br /> Pure 10/01/91 <0.50 8.7 <0.50 PCE:3.7 <br /> Purge 03/01/92 <0.50 6.6 <0.50 PCE:0.6 <br /> Pure 06/01/92 <0.50 22 <0.50 PCE:1.8 <br /> Purge 10/01/92 <0.50 6.6 <0.50 PCE:0.6 <br /> Pure 01/01/93 <0.50 6.2 <0.50 PCE:0.6 <br /> Purge 04/01/93 <0.50 12 <0.50 PCE:1.3 <br /> Pure 08/01/93 <0.50 3.7 <0.50 PCE:0.7 <br /> Page 19 of 115 <br />