Coal Waste Impoundments

On October 11, 2000, a breakthrough of Martin County Coal Corporation's coal waste impoundment released 250 million gallons of slurry in near Inez, Kentucky. The 72-acre surface impoundment for coal processing waste materials broke through into a nearby underground coal mine. Although the spill caused no loss of human life, environmental damage was significant, and local water supplies were disrupted. This incident prompted Congress to request the National Research Council to examine ways to reduce the potential for similar accidents in the future. This book covers the engineering practices and standards for coal waste impoundments and ways to evaluate, improve, and monitor them; the accuracy of mine maps and ways to improve surveying and mapping of mines; and alternative technologies for coal slurry disposal and utilization. The book contains advice for multiple audiences, including the Mine Safety and Health Administration, the Office of Surface Mining, and other federal agencies; state and local policymakers and regulators; the coal industry and its consultants; and scientists and engineers. Table of Contents Front Matter Executive Summary 1 Introduction 2 Current Regulatory Framework 3 Planning Coal Slurry Refuse Impoundments 4 Mine Mapping and Surveying 5 Technologies For Locating Mining Workings 6 Limiting Potential Failures 7 Alternatives for Future Coal Waste Disposal 8 Conclusions and Recommendations References Appendix A: Biographical Sketches of Committee Members Appendix B: Information Provided to the Committee Appendix C: Glossary Appendix D: Acronyms and Abbreviations Appendix E: Geophysical Techniques