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02,23,99 13:20 E 202 336 8917 HcClalland Lab g2 <br />• ;,4cC'{.F,I,I,AND LAB(~RAfORI}sS, 1NC. <br />Wlb GrrF .inert. Spas H., NrcuJ;t Na{11 70! / 14fw13A1 <br />h:1d i0?; 15aflU17 <br />February 24, 1994 <br />Mr. John Hardaway <br />Ylkw Pak Mlning <br />P.O. Box 19] <br />Victor, Colorado NOSti(1 <br />UcarJohn: <br />In response to your request, enclosed arc testing protowls and my contmcnu <br />regarding metals mohiliry waste rock characterization tests, static acid generation/acid <br />netltratiration potential (AGP/ANP) tests, and modified humidity cell kinetic AGP/ANP <br />tests. Testing protocols discussed are not all inclusive, but are the most commonly used <br />procedures. <br />A different section for each type of test (metals mohility, static AGY/ANY, and <br />• kinetic AGY/ANY) is provided for your convcniencc. (:ertain of my comments <br />admittedly could be construed as subjective, but are "backed up" by objective empiritYtl <br />data available from numerous and comparative tests conducted by the staff at MLI. <br />Yleasc review the enclosures and let me know your recommended changes. <br />{ appreciate the opportunity to assist you, and hope the information is helpful. <br />Sincerely, <br />;C ~ltk''/ <br />Gene E. McClelland <br />Metallurgist/Presidem <br />GGMsIm <br />Enclosure <br />1„ .,,.,..,~,.,,..,..a 11.7. u.,,~.„ <br />