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TABLE 9 RESULTS FOR CONFIRMATION SOIL SAMPLES COLLECTED DURING THE EXCAVATION AT THE SPCC CONTAINMENT STRUCTURE-METALS PG&E Former Tracy MGP Site Tracy, California E E 2 C� m m 2LaboratorY o N E y - E E Sample Sample Depth o a m Sample ID* Location Sample Date Work Order Type Matrix (feet bgs) ) ZL m m N Number Q m U v o cn > mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg SPCC-W-1-1.5 E1 Sidewall Soil 1.5 10/20/2008 08-10-1812 ND<0.75 6.06 244 0.774 0.558 41.0 13.4 37.6 10.3 ND<0.0835 ND<0.25 48.9 ND<0.75 ND<0.25 ND<0.75 42.9 73.5 SPCC-B-1-4 E1 Bottom Soil 4 10/20/2008 08-10-1812 ND<0.75 6.16 470 0.806 0.604 42.7 13.7 36.9 9.62 ND<0.0835 ND<0.25 49.5 ND<0.75 ND<0.25 ND<0.75 45.1 73.2 SPCC-B-2-1* D1 Bottom Soil 1 10/20/2008 08-10-1812 ND<0.75 8.02 207 0.663 0.502 35.8 11.8 33.1 17.2 ND<0.0835 ND<0.25 42.6 ND<0.75 ND<0.25 ND<0.75 38.6 101 SPCC-B-3-1* D1 Bottom Soil 1 10/20/2008 08-10-1812 ND<0.75 6.02 208 0.744 0.502 39.8 12.8 35.2 11.9 ND<0.0835 ND<0.25 46.8 ND<0.75 ND<0.25 ND<0.75 40.7 57.9 SPCC-W-2-2 E1 Sidewall Soil 2 10/20/2008 08-10-1812 S1 ND<0.75 4.22 179 0.728 ND<0.5 36.6 16.0 30.0 9.75 ND<0.0835 ND<0.25 49.6 1.16 ND<0.25 ND<0.75 33.7 54.3 SPCC-W-5-2 D1 Sidewall Soil 2 10/23/2008 08-10-2148 ND<0.75 4.04 183 0.743 ND<0.5 36.2 12.9 32.2 10.2 ND<0.0835 ND<0.25 50.1 ND<0.75 ND<0.25 ND<0.75 35.2 55.6 SPCC-B-2A-2 D1 Bottom Soil 2 10/23/2008 08-10-2148 ND<0.75 3.59 253 0.699 ND<0.5 32.9 15.4 28.7 9.79 ND<0.0835 ND<0.25 49.3 0.947 ND<0.25 ND<0.75 30.9 52.1 SPCC-B-2A-2DUP D1 Bottom Soil 2 10/23/2008 08-10-2148 ND<0.75 4.05 238 0.742 0.514 35.6 14.8 30.7 9.92 ND<0.0835 ND<0.25 49.3 ND<0.75 ND<0.25 ND<0.75 35.5 54.2 SPCC-W-4-2 D1 Sidewall Soil 2 10/23/2008 08-10-2148 ND<0.75 3.58 192 0.657 ND<0.5 31.2 12.9 26.4 9.25 ND<0.0835 ND<0.25 46.0 ND<0.75 ND<0.25 ND<0.75 27.6 49.1 SPCC-W-3-2 D1 Sidewall Soil 2 10/23/2008 08-10-2148 ND<0.75 3.81 205 0.712 ND<0.5 34.5 13.8 29.0 9.63 ND<0.0835 ND<0.25 48.1 ND<0.75 ND<0.25 ND<0.75 32.6 52.7 SPCC-W-6-2 D1 Sidewall Soil 2 10/23/2008 08-10-2148 ND<0.75 3.91 166 0.702 ND<0.5 32.8 12.5 28.0 9.35 ND<0.0835 ND<0.25 47.3 ND<0.75 ND<0.25 ND<0.75 30.5 51.1 SPCC-W-7-2 D1 Sidewall Soil 2 10/23/2008 08-10-2148 ND<0.75 2.74 193 0.604 ND<0.5 29.0 12.0 24.4 8.48 ND<0.0835 ND<0.25 43.5 ND<0.75 ND<0.25 ND<0.75 26.6 48.0 SPCC-B-3A-2 D1 Bottom Soil 2 10/23/2008 08-10-2148 ND<0.75 4.12 266 0.695 0.532 35.3 13.5 30.8 9.77 ND<0.0835 ND<0.25 49.1 ND<0.75 ND<0.25 ND<0.75 34.9 59.0 SPCC-W-9-2 D1 Sidewall Soil 2 10/23/2008 08-10-2148 ND<0.75 4.17 274 0.737 0.541 35.0 13.8 35.7 10.7 ND<0.0835 ND<0.25 50.0 1.22 ND<0.25 ND<0.75 35.6 71.3 SPCC-W-8-2 D1 Sidewall Soil 2 10/23/2008 08-10-2148 ND<0.75 1 4.20 1 199 0.661 0.500 33.9 1 13.2 29.8 10.1 ND<0.0835 ND<0.25 47.7 ND<0.75 ND<0.25 ND<0.75 1 31.7 59.0 SPCC-W-10-2 E1 Sidewall Soil 2 10/23/2008 08-10-2148 ND<0.75 4.32 216 0.767 0.532 37.6 14.9 32.3 10.7 ND<0.0835 ND<0.25 52.5 0.921 ND<0.25 ND<0.75 35.0 57.8 SPCC-W-11-2 E1 Sidewall Soil 2 10/23/2008 08-10-2148 ND<0.75 5.97 231 0.749 0.558 35.5 15.0 34.3 11.4 ND<0.0835 ND<0.25 51.5 ND<0.75 ND<0.25 ND<0.75 37.1 84.3 SPCC-W-11-2DUP I E1 I Sidewall Soil 2 10/23/2008 08-10-2148 1.14 6.71 238 1 0.737 0.525 34.9 12.3 36.0 25.3 ND<0.0835 ND<0.25 48.0 ND<0.75 ND<0.25 ND<0.75 36.3 137 *Samples with asterisk symbol (*)were removed via excavation and replaced with deeper subsequent samples after additional excavation was complete. Values in BOLD text are detected concentrations above the reporting limit ND< = Non Detect at Reporting Limit mg/kg = milligrams per kilogram Page 1 of 1