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<br />Section D.6 Tailing Disposal <br />Section D.6.2 Material Characteristics <br />Section D.6.2.1 Geotechnical Characteristics <br />STEVE: Please Note: Although a number of test pits were excavated in the <br />South Waste Rock/Tailing Disposal Area, there were no boreholes completed <br />within the disposal perimeter, as illustrated on Figure C.1, in Appendix C. <br />Is this information needed to determine suitability of disposal fa~:ility <br />foundation? <br />Section D.6.2.2 Geochemical Characteristics <br />25. The analyses presented in Appendix F indicated that the material was <br />ground to -10 mesh and thoroughly blended. The textural analyses of the <br />tailing material presented in Appendix D indicated that approximately 81% of <br />the whole tailing were smaller than 200 mesh. The tailing analyses conducted <br />to determine resulting water quality may therefore not be representative of <br />the final tailing disposed. Please address. <br />26. Was the tailing material processed through the flotation and ~~r the <br />carbon-in-leach circuit prior to analysis? If so, please describe the <br />processing methods, chemicals utilized, duration, rinsing methods ~~nd <br />duration, etc. If not, the simulation should be made, with actual expected <br />tailing size represented, to reflect the expected water quality resulting from <br />processed tailing disposal. <br />27. The acid producing and acid neutralization potential analyses conducted <br />on the tailing material indicate that the material has a net negative acid <br />neutralizing potential, and can thus be classified as an acid producing <br />material. Please specify what disposal methods will be employed t~~ mitigate <br />the potential acid production and resulting heavy metal liberation. <br />Section D.7.2 Site Description <br />STEVE: Please Note: Although a number of test pits were excavated in the <br />Heap Leach Facility location, the were no boreholes completed within the <br />perimeter of this facility. Is this information needed to determine the <br />suitability of the facility foundation? <br />