Download or read book HEAPREC written by David K. Denton and published by . This book was released on 1992 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Bureau of Mines report presents the documentation for HEAPREC. a methodology for calculating reclamation performance bonds for cyanide heap leach operations. HEAPREC is a template developed for use with Lotus 1-2-3 release 2.01 or newer software. The report is presented in step-by-step "user's manual" format. Appendixes contain detailed background and reference material on performance bonding, cyanide detoxification regulation, cyanide detoxification methods, general mine reclamation procedures, and an example bond calculation.