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Table 1. Concentrations of VOCs in Soil Gas <br /> 3081 North Tracy Boulevard <br /> Tracy, CA 95376 <br /> SG8 5 1/17/17 <40 <60 <100 <9 <60 <200 <100 <200 <100 ND <br /> SG9 5 1/17/17 <40 <60 <100 <9 <60 <200 <100 <200 <100 ND <br /> SG10 5 1/17/17 6,800 <60 <100 <9 <60 <200 <100 <200 <100 ND <br /> 5/30/19 303 <20 <20 <20 <20 <20 <20 <40 <20 ND <br /> 1/18/17 65,000 86 <100 <9 <60 <200 <100 <200 <100 ND <br /> 5/30/19 124 <20 <20 <20 <20 <20 <20 <40 <20 ND <br /> 2/21/20 473 <8 <8 <8 <8 <8 <8 <16 <8 ND <br /> SG 11 5 2/21/20 467 <8 <8 <8 <8 <8 <8 <16 <8 ND <br /> 9/15/20 8,680 9 <8 <8 <8 <8 <8 <16 <8 Chloroform: 22 <br /> 6/11/21 1,900 11 <8 <8 <8 <8 <8 <16 <8 Chloroform: 77 <br /> DCFM: 41 <br /> 1/18/17 72,000 2,100 <100 <9 <60 <200 <100 <200 <100 ND <br /> SG12 5 5/30/19 No Flow <br /> 2/21/20 38,900 900 <8 <8 <8 <8 <8 <16 <8 Methylene Chloride: 148 <br /> 1/18/17 2,100 120 <100 <9 <60 <200 <100 <200 <100 ND <br /> SG13 5 5/30/19 100 <20 <20 <20 <20 <20 <20 <40 <20 ND <br /> 2/21/20 <8 <8 <8 <8 <8 <8 <8 <16 <8 N D <br /> 1/17/17 220 <60 <100 <9 <60 <200 <100 <200 <100 ND <br /> 5/30/19 129 <20 <20 <20 <20 <20 <20 <40 <20 ND <br /> SG 14 5 2/21/20 <8 <8 <8 <8 <8 <8 <8 <16 <8 N D <br /> 9/15/20 176 <8 <8 <8 <8 <8 <8 <16 <8 ND <br /> 6/11/21 74 22 <8 <8 <8 <8 <8 <16 <8 DCFM: 33 <br /> 1/17/17 500 <60 <100 <9 <60 <200 <100 <200 <100 ND <br /> 5/30/19 <20 <20 <20 <20 <20 <20 <20 <40 <20 ND <br /> SG15 5 9/15/20 1,350 <8 <8 <8 <8 <8 <8 <16 <8 ND <br /> 6/11/21 731 <8 <8 <8 <8 <8 <8 <16 <8 DCFM: 33 <br /> Methylene Chloride: 9 <br /> 1/17/17 1,500 <60 <100 <9 <60 <200 <100 <200 <100 ND <br /> 5/30/19 1,720 <20 <20 <20 <20 <20 <20 <40 <20 DCFM: 76 <br /> SG16 5 5/30/19 2,130 <20 <20 <20 <20 <20 <20 <40 <20 DCFM: 77 <br /> 9/16/20 3,160 <8 1 <8 <8 <8 1 <8 <8 <16 1 <8 1 DCFM: 20 <br /> 9/16/20 3,110 <8 <8 <8 <8 <8 <8 <16 <8 DCFM: 20 <br /> SG17 5 1/17/17 2,900 630 <100 <9 <60 <200 <100 <200 <100 ND <br /> 5/29/19 No Flow <br /> 1/17/17 400 <60 <100 <9 <60 <200 1 <100 <200 <100 ND <br /> SG18/SG18A 5 5/29/19 No Flow <br /> 9/16/20 2,210 14 <8 <8 <8 <8 1 <8 <16 <8 DCFM: 67 <br /> 1/17/17 No Flow <br /> SG19/SG19A 5 5/29/19 No Flow <br /> 9/16/20 1,040 <8 <8 <8 <8 <8 <8 <16 <8 ND <br /> 1/18/17 840 <60 <100 <9 <60 <200 <100 <200 <100 ND <br /> SG20 5 5/30/19 26 <20 <20 <20 <20 <20 <20 <40 <20 ND <br /> 2/21/20 <8 <8 <8 <8 <8 <8 <8 <16 <8 ND <br /> 9/15/20 61 <8 <8 <8 <8 <8 <8 <16 <8 ND <br /> SS20 Unknown 6/11/21 271 19 <8 <8 <8 <8 <8 <16 <8 Chloroform: 159 <br /> DCFM: 24 <br /> 1/18/17 370 <60 <100 <9 <60 <200 <100 <200 <100 ND <br /> 5/30/19 <20 <20 <20 <20 <20 <20 <20 <40 <20 ND <br /> 2/21/20 44 <8 <8 <8 <8 <8 <8 <16 <8 ND <br /> SG21 Sub-Slab 9/15/20 405 <8 <8 <8 <8 <8 <8 <16 <8 ND <br /> Chloroform: 85 <br /> 6/11/21 11 <8 <8 <8 <8 <8 <8 <16 <8 DCFM: 21 <br /> Methylene Chloride: 13 <br /> 1/18/17 1,700 <60 <100 <9 <60 <200 <100 <200 <100 ND <br /> SG22 Sub-Slab 5/30/19 <20 <20 <20 <20 <20 <20 <20 <40 <20 ND <br /> 2/21/20 749 107 <8 <8 <8 <8 <8 <16 <8 ND <br /> 9/15/20 1,360 160 <8 <8 <8 <8 <8 <16 <8 ND <br /> 1/18/17 280 <60 <100 <9 <60 <200 <100 <200 <100 ND <br /> SG23 Sub-Slab 5/30/19 <20 <20 <20 <20 <20 <20 <20 <40 <20 ND <br /> 2/21/20 81 <8 <8 <8 <8 <8 <8 <16 <8 ND <br /> 9/15/20 1,320 148 <8 <8 <8 <8 <8 <16 <8 ND <br /> 4/11/17 1,400 <60 <100 <9 140 1,300 190 710 190 ND <br /> SG24 5 5/30/19 20 <20 <20 <20 <20 <20 <20 <40 <20 ND <br /> 9/16/20 2,820 <8 <8 <8 <8 <8 <8 <16 <8 ND <br /> 4/11/17 56 <60 <100 <9 88 610 <100 310 <100 ND <br /> SG25 5 5/29/19 203 <20 <20 <20 <20 <20 <20 <40 <20 ND <br /> 9/16/20 353 <8 <8 <8 <8 <8 <8 <16 <8 ND <br />