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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 04/01/93 45 42 <0.50 Duplicate Sample;
<br /> Pure 08/01/93 30 34 <0.50
<br /> Purge 08/01/93 30 33 <0.50 Duplicate Sample;
<br /> Pure 01/01/94 24 37 <0.50
<br /> Purge 03/01/95 35 56 <0.50 Iso-benzene:1.3,Tol:1.5;CF:0.5
<br /> Pure 04/01/96 47 31 <0.50
<br /> Purge 04/01/97 4 6.2 <0.50
<br /> Pure 04/28/98 42 19 <0.50
<br /> Purge 04/06/99 11 3.8 <0.5
<br /> Pure 04/12/00 120 27 <0.50 CF:2
<br /> Purge 04/11/01 51 11 <2.0 Tol:3.7
<br /> Pure 05/09/02 100 26 <0.50 1,1-DCE:0.6
<br /> Purge 05/06/03 110 29 <0.50
<br /> Purge - 04/24/04 140 38 <0.50 1,1-DCE:1,t-1,2-DCE:0.8
<br /> PDB 179.5 04/26/05 100 27 9
<br /> PDB 184.5 04/26/05 94 26 14
<br /> Purge - 05/12/05 100 35 <0.50
<br /> PDB 179.5 A 04/18/06 100 39 <0.50 1,1-DCE:0.92;t-1,2-DCE:0.77
<br /> PDB 179.5 A 05/10/07 96 45 <0.50 1,1-DCE:0.90
<br /> PDB 179.5 A 04/28/08 65 40 0.59 1,1-DCE:0.57; t-1,2-DCE:0.52
<br /> PDB 179.5 A 11/05/08 86 45 <0.50 1,1-DCE:0.82
<br /> PDB 179.5 A 04/30/09 78 58 <0.50 CF:2.1;t-1,2-DCE:0.65;1,1-DCA:1.5;1,1-DCE:0.82
<br /> PDB 179.5 A 04/26/10 75 54 <0.50 t-1,2-DCE:1.9;
<br /> PDB 179.5 A 08/02/10 70 45 <0.50 t-1,2-DCE:1.2;
<br /> PDB 179.5 SA 10/21/10 76 60 <0.50 CF:1.1;
<br /> PDB 179.5 SA 04/08/11 79 48 <0.50 1,1-DCE:0.69
<br /> PDB 179.5 SA 10/24/11 74 40 <0.50 1,1-DCE:0.61
<br /> PDB 179.5 SA 05/17/12 72 42 <0.50 1,1-DCE:0.59;
<br /> PDB 179.5 SA 10/10/12 72 41 <0.50 1,1-DCE:0.57
<br /> PDB 179.5 SA 04/12/13 70 36 0.79 1,1-DCE:0.55;
<br /> PDB 179.5 SA 10/10/13 13 3.7 53
<br /> M-8C1 Purge - 06/01/88 95 7 <5
<br /> Purge 03/01/89 76 15 <5
<br /> Pure 11/01/89 65 14 <0.50
<br /> Purge 03/01/90 94 20 <0.50
<br /> Pure 07/01/90 93 18 <0.50
<br /> Purge 09/01/90 <0.50 <0.50 <0.50
<br /> Pure 12/01/90 94 24 <0.50
<br /> Purge 04/01/91 140 27 <0.50
<br /> Pure 07/01/91 120 25 <0.50
<br /> Purge 10/01/91 194 36 <0.50 1,1-DCA:0.9,Tol:0.5;CF:4.1
<br /> Pure 03/01/92 121 24 <0.50
<br /> Purge 06/01/92 <0.50 3.5 <0.50
<br /> Pure 06/01/92 172 46 <0.50 1,1-DCE:6.6
<br /> Purge 10/01/92 85 27 <0.50
<br /> Pure 01/01/93 92 44 <0.50
<br /> Purge 04/01/93 31 8.2 <0.50
<br /> Pure 08/01/93 15 4.6 <0.50
<br /> Purge 01/01/94 26 5.4 <0.50
<br /> Pure 03/01/95 9.6 2.8 <0.50
<br /> Purge 04/01/96 180 48 32 1,1-DCE:1.4
<br /> Pure 04/01/97 89 27 <0.50
<br /> Purge 04/29/98 38 9 <0.50
<br /> Pure 04/29/98 35 8.1 <0.50 Duplicate Sample;5
<br /> Purge 10/08/98 45 10 <0.50
<br /> Pure 04/09/99 190 54 44 1,1-DCE:2.2,t-1,2-DCE:1.2
<br /> Purge 10/14/99 160 49 <0.5 1,1-DCE:1.3,t-1,2-DCE:0.8
<br /> Pure 04/18/00 80 24 <0.50
<br /> Purge 10/11/00 100 29 <0.50 1,1-DCE:1.0;t-1,2-DCE:0.6
<br /> Pure 04/13/01 52 9.7 <2.0
<br /> Purge 04/13/01 54 10 <2.0 Duplicate Sample;#6
<br /> Pure 10/11/01 140 36 <0.50 1,1 DCA:1.2,tl,2-DCE:0.8
<br /> Purge 05/07/02 50 13 <0.50
<br /> Pure 10/09/02 46 12 1.6
<br /> Purge 05/02/03 170 48 27 1,1-DCE:1.3;t-1,2-DCE:0.7
<br /> Pure 10/27/03 200 60 50 t-1,2-DCE:0.9
<br /> Purge 04/22/04 150 40 27 1,1-DCE:1.5;t-1,2-DCE:0.6
<br /> Pure 04/22/04 140 39 27 Duplicate Sample;,1,1-DCE:1.6;t-1,2-DCE:0.6
<br /> Purge 10/13/04 170 58 87 1,1-DCE:1.5;t-1,2-DCE:1.6
<br /> Pure 10/13/04 170 57 87 Duplicate Sample;,1,1-DCE:2.2;t-1,2-DCE:1.0
<br /> Page 44 of 115
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