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Table 2 <br /> Soil Mound Analytical Results for WDR Constituents of Concern <br /> and Comparison to Pond 3 Soil Analytical Results <br /> PG&E McDonald Island Gas Storage Facility <br /> McDonald Island, California <br /> Analytical Results <br /> Barium Sulfate Sodium Chloride Lab pH <br /> Soil Mound Sample Name (mg/kg) (mg/kg) (mg/kg) (mg/kg) H Units 0°C <br /> Composite East 200 290 410 92 4.33 @ 23.2° <br /> Composite West 590 680 380 140 4.55 @ 23.30 <br /> Average Concentration 395 485 3951 116 4.44 23.2° <br /> Pond 3 Soil Samples Note 1 <br /> Total Number of Pond 3 Soil <br /> Samples by Analyte 35 35 35 35 35 <br /> Range of Analytical Results 20-320 5-6701 50- 13,000 5- 1,500 5.20-9.06 <br /> Number of Samples below Soil <br /> Mound Average Concentration 35 33 18 7 0 <br /> Percent of Samples below Soil <br /> Mound Average Concentration 100 94 51 201 0 <br /> Note 1: Results reported in 2007 Annual Groundwater Monitoring Report(MSE, 2008). <br /> PG&E McDonald Island Well Decommissioning Report Table 2 1 of 1 September 2009 <br />