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737 mg/Kg <br />MW-1 10.0 <br />MW-1 <br />MW-1 10.0 <br />MW-1A/10.0 162 mg/Kg <br />MW-1B/10.0 187 mg/Kg <br />SULPHUR mg/Kg.. <br />(1)Pril) . DEFTH <br />0.5 <br />SAMPLE <br />MW-1B/0.5 <br />TABLE 4 <br />ELEMENTAL (TOTAL) SULPHUR IN SOIL <br />EPA METHOD 6010 <br />mg/Kg (ppm) <br />Note: MW-1A/10.0 is a duplicate sample of MW-1B/10.0 <br />Sulphur is not a CAM metal and therefore not subject to the state of California smc regulatory <br />criteria. Additionally, sulphur has no DTSC numerical standard stated in the lists of RCRA Hazardous <br />Wastes from Non-Specific Sources under the waste code for leachate resulting from the treatment, <br />storage, or disposal of wastes (22 CCR, 66261.31). <br />As shown in Table 4 the concentration of sulphur in Parcel III appears to decrease with depth. <br />Typical background concentrations for sulphur in surface soils across the United States range from <800 <br />to 48,000 mg/Kg, with an average of 1,600 mg/Kg (Shacklette and Boerngen, 1984). The concentration <br />of elemental sulphur detected in both the near surface soil sample and the capillary fringe is below the <br />low end of the background range, and well below the average. <br />4.1.8 Sulfates <br />Sulfates were detected in all three samples analyzed. Sulfates detected in Parcel III soil are <br />presented in Table 5. Comprehensive analytical laboratory data reports are included in Appendix B. <br />SAC28.013 <br />14 <br /> December 20, 1991 <br />DAME5& MooRF