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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 03/01/92 <0.50 2.1 <0.50
<br /> Pure 01/01/93 <0.50 34 <0.50
<br /> Purge 01/01/93 <0.50 25 <0.50 Duplicate Sample;
<br /> Pure 01/01/94 <0.50 24 <0.50
<br /> Purge 03/01/95 <0.50 15 <0.50
<br /> Pure 04/01/96 <0.50 8.8 <0.50
<br /> Purge 04/01/97 <0.50 43 <0.50
<br /> Pure 05/01/98 <0.50 83 <0.50
<br /> Purge 04/07/99 <0.5 55 <0.5
<br /> Pure 04/07/99 <0.5 56 <0.5 Duplicate Sample;
<br /> Purge 04/18/00 <0.50 140 <0.50
<br /> Pure 04/18/00 <0.50 140 <0.50 Duplicate Sample;1
<br /> Purge 04/12/01 <2.0 120 <2.0
<br /> Pure 05/09/02 <0.50 120 <0.50
<br /> Purge 04/29/03 <0.50 220 <0.50
<br /> Purge - 04/15/04 <0.50 290 <0.50 CF:0.6;PCE:0.6
<br /> PDB 33.5 04/27/05 <5.0 490 <5.0
<br /> PDB 38.5 04/27/05 <5.0 490 <5.0
<br /> Purge - 05/17/05 <5.0 590 <5.0
<br /> PDB 38.5 A 04/18/06 760 290 260
<br /> PDB 38.5 A 05/10/07 14 590 <5
<br /> PDB 38.5 A(e) 02/14/08 8.7 200 <2.0 CF:5.7
<br /> PDB 38.5 A(e) 04/28/08 <5 370 <5
<br /> PDB 38.5 A(e) 07/22/08 <5 260 <5
<br /> PDB 38.5 A(e) 10/17/08 <2.5 160 <2.5 CF:5.8
<br /> PDB 38.5 A 02/09/09 <2 170 <2
<br /> PDB 38.5 A(e) 02/09/09 <2 160 <2 Duplicate Sample;
<br /> PDB 38.5 A(e) 04/30/09 <0.50 440 <0.50 CF:6.9;1,1-DCA:16;1,1-DCE:2.5
<br /> PDB 38.5 A(e) 07/29/09 <0.50 320 <0.50 CF:7.6;1,1-DCA:23;1,1-DCE:3.7
<br /> PDB 38.5 A(e) 10/26/09 <0.50 250 <0.50 CF:7.1;1,1-DCA:18;1,1-DCE:2.9
<br /> PDB 38.5 A(e) 01/18/10 <5.0 140 <5.0
<br /> PDB 38.5 A(e) 04/19/10 <0.50 130 <0.50 CF:8.4;1,1-DCE:1.8;1,1-DCA:14
<br /> Low-flow purge 38.5 Q 08/03/10 <1.0 140 <0.50 CF:8.0;1,1-DCE:2.3;1,1-DCA:14
<br /> - 08/03/10 <0.50 140 <0.50 CF:7.6;1,1-DCE:1.7;1,1-DCA:13;Duplicate Sample;
<br /> Low-flow purge 38.5 Q 10/21/10 <0.50 130 <0.50 CF:2.6;1,1-DCE:0.58;1,1-DCA:4.0
<br /> - 10/21/10 <0.50 140 <0.50 CF:2.8;1,1-DCE:0.61;1,1-DCA:4.3;Duplicate Sample;
<br /> PDB 38.5 Q 01/07/11 <0.50 110 <0.50 CF:1.0;1,1-DCA:1.2
<br /> - 01/07/11 <0.50 120 <0.50 CF:1.0;1,1-DCA:1.2;Duplicate Sample;
<br /> PDB 38.5 Q 04/08/11 <0.50 120 <0.50 CF:2.5;1,1-DCA:3.4
<br /> - 04/08/11 <0.50 120 <0.50 CF:2.4;1,1-DCA:3.2;Duplicate Sample;
<br /> PDB 38.5 Q 07/12/11 <0.50 100 <0.50 CF:9.6;1,1-DCA:9.9;1,1-DCE:1.3
<br /> - 07/12/11 <0.50 100 <0.50 CF:9.8;1,1-DCA:10;1,1-DCE:1.2;Duplicate Sample;
<br /> PDB 38.5 Q 10/14/11 <0.50 110 <0.50 CF;5.0;1,1-DCA:5.9;1,1-DCE:0.91
<br /> - 10/25/11 <0.50 110 <0.50 CF:5.1;1,1-DCA:6.0;1,1-DCE:0.83;Duplicate Sample;
<br /> PDB 38.5 Q 01/03/12 <0.50 73 <0.50 Duplicate Sample;1,1-DCA:0.77;
<br /> - 01/03/12 <0.50 74 <0.50 1,1-DCA:0.70;
<br /> PDB 38.5 Q 01/09/12 <0.50 70 <0.50 1,1-DCA:0.81;
<br /> PDB 38.5 Q 01/16/12 <0.50 65 <0.50 1,1-DCA:0.62;
<br /> PDB 38.5 Q 02/23/12 <0.50 58 <0.50
<br /> PDB 38.5 Q 05/17/12 <0.50 76 <0.50 Duplicate Sample;1,1-DCA:4.2;CF:6.0;
<br /> - 05/17/12 <0.50 79 <0.50 1,1-DCA:4.5; 1,1-DCE:0.50;CF:6.3;
<br /> PDB 38.5 Q 08/09/12 <0.50 57 <0.50
<br /> PDB 38.5 Q 10/10/12 <0.50 67 <0.50
<br /> PDB 38.5 Quarterly 01/23/13 <0.50 72 <0.50 1,1-DCA:1.9;CF:2.2;
<br /> PDB 38.5 Quarterly 04/12/13 <0.50 59 <0.50 1,1-DCA:1.5;CF:1.7;
<br /> PDB 38.5 Quarterly 07/02/13 <0.50 55 <0.50 1,1-DCA:0.82;CF:1.1;
<br /> PDB 38.5 Quarterly 10/11/13 <0.50 35 <0.50
<br /> M-2A Purge - 01/01/87 NA 46 <0.50
<br /> Purge 02/01/87 NA 93 <0.50
<br /> Pure 04/01/87 8.6 56 <0.50 1,1-DCA:1.1
<br /> Purge 07/01/87 5.2 29 <0.50 CF:0.8
<br /> Pure 10/01/87 5.9 38 <0.50 1,1-DCA:6.3,1,1-DCE:1.1,MC:0.6;CF:0.5
<br /> Purge 06/01/88 2.6 24 <0.50 1,1-DCA:2.7,1,1-DCE:0.5
<br /> Pure 03/01/89 2.6 25 <0.50 CF:1.4
<br /> Purge 03/01/92 <0.50 <0.50 <0.50 1,1,1-TCA:0.6,1,1-DCA:6,1,1-DCE:6.8;CF:13
<br /> Pure 01/01/93 1.1 17 <0.50 CF:0.8
<br /> Purge 01/01/94 2.3 48 <0.50 1,1-DCA:1.4,1,1-DCE:0.8;CF:2.8
<br /> Pure 03/01/95 0.8 43 <0.50 1,1-DCA:0.6,1,1-DCE:0.5;CF:4.1
<br /> Page 9 of 115
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