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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 03/01/90 <50 1300 <50 <br /> Pure 07/01/90 <0.50 790 <0.50 <br /> Purge 07/01/90 <0.50 900 <0.50 Duplicate Sample; <br /> Pure 09/01/90 10.2 1365 <0.50 <br /> Purge 09/01/90 9.1 1293 <0.50 Duplicate Sample; <br /> Pure 12/01/90 2 748 <0.50 <br /> Purge 04/01/91 19 1400 <0.50 <br /> Pure 07/01/91 19 83 <0.50 CF:0.9 <br /> Purge 10/01/91 36 1060 <0.50 Tol:4.7;CF:2.7 <br /> Pure 03/01/92 19 618 <0.50 CF:0.8 <br /> Purge 06/01/92 18 900 <0.50 CF:1.3 <br /> Pure 10/01/92 22 1000 <0.50 CF:2.3 <br /> Purge 10/01/92 22 1030 <0.50 Duplicate Sample;CF:2.8 <br /> Pure 01/01/93 31 580 <0.50 CF:1.9 <br /> Purge 04/01/93 25 800 <0.50 CF:2.2 <br /> Pure 08/01/93 8.9 400 <0.50 CF:1.3 <br /> Purge 01/01/94 9.9 420 <0.50 MC:0.5;CF:1.3 <br /> Pure 05/01/94 23 780 <0.50 MC:4.2;CF:1.6 <br /> Purge 03/01/95 37 700 <0.50 CF:1.3 <br /> Pure 04/01/96 4.1 82 <0.50 <br /> Purge 04/01/97 3.2 750 <0.50 <br /> Pure 07/01/97 6 160 <0.50 MC:0.9 <br /> Purge 07/01/97 4.3 <50 <0.50 Duplicate Sample; <br /> Pure 04/29/98 4 170 <0.50 1,1,1-TCA:0.7; 1,2-DCP:17;CF:0.5 <br /> Purge 04/29/98 7.3 180 <0.50 Duplicate Sample;3;CF:0.7 <br /> Pure 04/06/99 5.2 180 <0.5 <br /> Purge 04/18/00 7.4 230 <0.50 CF:0.8 <br /> Pure 04/12/01 <2.0 85 <2.0 <br /> Purge 05/09/02 5.6 110 <0.50 <br /> Pure 05/02/03 4 89 <0.50 <br /> Purge 04/22/04 2.9 100 <0.50 <br /> Purge - 04/22/04 2.7 110 <0.50 Duplicate Sample; <br /> PDB 28.5 04/19/05 <0.50 15 <0.50 <br /> PDB 33.5 04/19/05 <0.50 30 <0.50 <br /> PDB 38.5 04/19/05 0.73 58 <0.50 <br /> Purge - 05/10/05 1 74 <0.50 <br /> PDB 38.5 A 04/18/06 <0.50 35 <0.50 <br /> PDB 38.5 A 04/25/07 <0.50 14 <0.50 <br /> PDB 38.5 A 04/28/08 <0.50 6.9 <0.50 <br /> PDB 38.5 A 04/10/09 <0.50 17 <0.50 <br /> PDB 38.5 A 04/28/10 <0.50 7.3 <0.50 <br /> Low-flow pure 38.5 A 08/05/10 <0.50 8.2 <0.50 <br /> PDB 38.5 M 04/28/10 <0.50 9.7 <0.50 <br /> PDB 38.5 M 04/28/10 <0.50 4.5 <0.50 <br /> PDB 38.5 A 01/11/11 <0.50 4.5 <0.50 <br /> PDB 38.5 A 04/12/11 <0.50 6.0 <0.50 <br /> PDB 38.5 A 07/12/11 <0.50 9.0 <0.50 <br /> PDB 38.5 A 10/24/11 <0.50 7.7 <0.50 <br /> PDB 38.5 A 01/24/12 <0.50 8.7 <0.50 <br /> PDB 38.5 A 05/18/12 <0.50 6.1 <0.50 <br /> PDB 38.5 A 08/09/12 <0.50 8.9 <0.50 <br /> PDB 38.5 A 04/12/13 <0.50 7.2 <0.50 <br /> M-9A Purge - 10/01/87 6.5 5.3 <0.50 <br /> Pure 06/01/88 NA <5 <5 1,1,1-TCA:69 <br /> Purge 03/01/89 59 25 <5 <br /> Pure 11/01/89 73 38 <0.50 <br /> Purge 03/01/90 48 26 <0.50 <br /> Pure 07/01/90 30 12 <0.50 <br /> Purge 09/01/90 19.6 8.7 <0.50 <br /> Pure 12/01/90 13.7 6.2 <0.50 <br /> Purge 04/01/91 110 47 <0.50 <br /> Pure 07/01/91 92 30 5.9 1,1-DCE:1 <br /> Purge 10/01/91 98 46 7.3 1,1-DCE:1.5;CF:3.1 <br /> Pure 03/01/92 0.5 34 <0.50 <br /> Purge 06/01/92 80 36 3.3 <br /> Pure 10/01/92 72 13 <0.50 <br /> Purge 01/01/93 32 37 <0.50 <br /> Pure 04/01/93 65 48 <0.50 1,1-DCE:1 <br /> Purge 08/01/93 89 15 <0.50 <br /> Pure 01/01/94 33 17 <0.50 <br /> Page 18 of 115 <br />