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Memorandum in Response to Notice of Determination of Designation Mining Operation (DMO); DRMS File Numbers <br />M-1977-416, M-1978-039 HR, M-1977-285, M-1980-055 HR, M-1981-021 and M-1977-032. <br />Section 6.4.20 (12) -Based on information obtained from engineered drainage reports <br />and the hydrogeologic report generated in Phase 1, if appropriate and available, a <br />Water Quality Monitoring Plan will be provided. <br />Section 6.4.20 (13) - No processing occurs at any of the mines, and off-site surface <br />water is routed around the mine sites per standard engineering practices. Surface <br />water that falls on the mine sites is also routed and contained in engineered structures <br />with sufficient capacity to contain a 100-year, 6-hour storm. Based on this <br />information, climate data reporting is not anticipated to be necessary. <br />Section 6.4.20 (14) - Geochemical data and analysis will be .provided as described in <br />Phase 1. <br />Section 6.4.20 (1 S) -All of the mines are existing mines; therefore, no construction <br />schedule would be provided. - <br />Section 6.4.20 (16) -All of the mines are existing mines; therefore, no QA/QC plan <br />for construction would be provided. - <br />~:.:r <br />Section 6.4.20 (17) -Plant growth medium information is provided in the current <br />permits for the mines and can be provided as such m .the EPP or referenced. <br />F <br />Section 6.4.20 (18) -Wildlife protectlon~measures are described in the existing <br />s, <br />permits for the mines; however, wildlife surveys4have been conducted for disturbed <br />areas in accordance with~the BLM NEP%A,documerits~and could be provided to the <br />Division if reauested. = `` .u'° ~; '~"~_ <br />~~ ;; <br />Section 6.4.20{(19~' ~No processing occurs at•_any of the Mines; therefore, no tailings <br />.~ <br />or sludge are generated for disposal..,., .,v <br />4 ~ _,; ;, <br />The preparation of th`e EPP is~heavily dependent on the data collected in Phase 1. Based <br />on this°; Denison; therefore, requests that Denison and the Division evaluate the results <br />from Phrased and then rev Sit the proposed Phase 2 approach for confirmation on that <br />approach ata,~~later date. '?s <br />Schedule <br />;:~;.:.,..;::w.. <br />In its March 7 lettersj~~Denison requested that the time allowed for submittal of the EPP <br />be extended from 18O~days to one year, pursuant to Rule 7.2.3(2)(c). The schedule <br />discussed below assumes that the time allowed for submittal of the EPP is extended to <br />one year. <br />Denison proposes to complete the ore and waste rock characterization and soil <br />characterization within one month of approval of the proposed Phase 1 activities by the <br />Division. Denison proposes to complete the remainder of the Phase 1 activities within <br />six months of approval of the proposal. At that time, Denison proposes to meet with the <br />Division and revisit the proposed Phase 2 EPP preparation based on the data obtained in <br />8 <br />