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16. The Applicant has provided three sample results of the existing waste rock stockpile within <br /> Exhibit U. These results are numbered-001, -005, and-016. Please explain this numbering <br /> sequence as it appears there were at least 16 samples taken with only three results provided. <br /> Other samples were taken from other sites and other locations outside of the proposed permit <br /> area.The samples provided,001,005 and 016,were the only samples from within the <br /> proposed permit area. <br /> 17. Within Exhibit U,Section(6), the Applicant states a mineralized dust product(less than 3mm)will <br /> be produced from the screening process and will be hauled to an off-site mill for processing. <br /> Please provide details on how the stockpiled mineralized dust will be protected from wind and <br /> water erosion. <br /> The mineralized dust stockpile comprised of Crusher Fines will be protected from wind erosion <br /> with the use of available water during times when temperatures are above freezing(327). <br /> Water erosion from the base of the Crusher Fines stockpile will be minimized with the use of a <br /> berm on the downgradient side as discussed in item number 4 above. <br /> 18. Within Exhibit U,Section(6), the Applicant states that if ABA testing indicates the fines are acid- <br /> forming, then amendment of fines will be conducted with the addition of lime or limestone. <br /> Please note, the sampling results and revised plan will need to be submitted to the Division and <br /> approved prior to implementation. <br /> This comment and requirement is understood by MineWater. If amendment of Crusher Fines is <br /> undertaken by the Applicant,such amendment procedures will be first provided to the <br /> Division as a Technical Revision,and Applicant will first seek and receive Division approval of <br /> the chemical amendment plan prior to implementation thereof. <br /> 19. Within Exhibit U,Section(7), the Applicant states no stockpiles of mineralized materials will be <br /> left on operations pad for a significant length of time. Please define "significant amount of time" <br /> by specifying the maximum amount of time stockpiles of mineralized material may remain on <br /> site. <br /> Crusher Fines will not remain un-remediated on site for more than six months. If the Division <br /> has not approved a Technical Revision allowing the Crusher Fines to remain on-site,then such <br /> material will be hauled,either to the Lucky Strike Mill or to a landfill,for offsite disposal. <br /> 20. The Applicant has proposed to haul material that is sorted from the x-ray processing facility as <br /> inert material back to the South London Stockpile for backfilling/disposal. Exhibit U provides the <br /> results of labscole whole rock analysis of five samples of the projected inert material. Please <br /> provide a sampling plan to demonstrate the accuracy of these lab-scale tests and the actual <br /> results of the x-ray sorter. Please note, the Division believes after the initial sampling of ABA, TAL, <br /> and SPLP is conducted on the inert material, the continued sampling plan frequency does not <br /> need to be as often as the mineralized fines. <br /> Please see Exh U which includes the Mineralized Fines Sampling Plan that provides these <br /> details. <br />