Coal Remining: Best Management Practices Guidance Manual

摘要

This manual was created to support EPA's proposal of a Remining subcategory underexisting regulations for the Coal Mining industry. The purpose of this guidance manual is to assist operators in the development and implementation of a best management practice (BMP) plan specifically designed for a particular remining operation. This guidance manual was also developed to give direction to individuals reviewing remining applications and associated BMP plans. The manual is divided into the following section: Introduction presents state-specific abandoned mine land conditions, industry profile information, the status or remining operations, and general information regarding remining BMPs; the scope of pre-Surface Mining Control and Reclamation Act (SMCRA) mining and associated acid mine drainage contamination; Sections 1.0 through 5.0 describe hydrologic, sediment and geochemical control BMP implementation practices, site assessment required to determine implementation of these practices, implementation guidelines, design considerations, and case studies; Section 6.0 details the efficiency of remining BMPs in regards to the water quality of pre-existing discharges; Section 7.0 provides BMP implementation unit cost information; Appendix A presents EPA Coal Remining Database and includes summary data and information from 61 state remining and abandoned mine land (AML) project data packages; Appendix B presents summary data from the Pennsylvania Remining Study of 112 closed remining oeprations affecting 248 pre-existing discharges; and Appendix C presents response to the Interstate Mining Compact Commission (IMCC) remining solicitation sheet from 20 member states.