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Table of Contents <br />Introduction 1 <br />Methods 2 <br />Gamma Surveys 2 <br />Radiological Depth Profile Sampling 3 <br />Laboratory Analysis of Depth Profile Samples 5 <br />Characterization Results 8 <br />Gamma Survey Results 8 <br />General Distribution of Alluvial Fill Source Term Materials 10 <br />Remedial Assessment 11 <br />Cleanup Criterion for Alluvial Fill Source Term Materials 11 <br />Alluvial Fill Source Term Material Volume Estimates 15 <br />Disposal Options 17 <br />Disposal in the Underground Mine Workings 17 <br />Disposal in an Engineered Waste Rock Pile 21 <br />Offsite Disposal 22 <br />Conclusions 23 <br />References 24 <br />Appendix A (radiological depth profile data) 27 <br />Appendix B (material volume calculations) 33 <br />