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Mr. Timm Comer <br />Page 2 <br />November 22, 2011 <br />iii. provide an engineering detail showing the northwest edge treatment, if it <br />is to be different than the typical anchor trench. If the northwest edge is to <br />be the same as the typical anchor trench, please indicate as much of the <br />drawings. <br />1) Drawings #A100 and A110 — Please provide some narrative addressing the gap in the <br />berm just north of the Section A "bubble" (located at approximately N 48,710; E 36,200). <br />Why is the berm crest elevation of 9,449 ft (and anchor trench) not continued another 30 <br />ft to daylight in the existing Phase I Pad material? <br />4) Additional Operations Narrative — Pursuant to Rule 6.4.21(6)(b)(i) please provide <br />narrative describing how process solution in the PSE area will be handled so as to comply <br />with all applicable environmental protection and reclamation standards and regulations. <br />The narrative should address expected response times to unexpected pressure anomalies <br />in the process solution circuit within the PSE area. <br />) Additional Decommissioning Narrative — Pursuant to Rules 6.4.21(6)(a) and <br />6.4.21(6)(b)(ii), please provide narrative describing how the PSE lined area will be <br />decommissioned upon reclamation. The Division expects the process to be similar to that <br />proposed in the permit for the VLF and /or the ADR area. <br />Stormwater Capacity — Pursuant to Rule 6.4.21(7)(f), please provide some discussion as <br />to whether stormwater capacity in the PSE liner area has been considered and how excess <br />stormwater will be handled. <br />If you have any questions, please call me at 303 - 866 -3567 x8169. <br />Sincerely, <br />Timothy A. Cazier, P.E. <br />Environmental Protection Specialist <br />cc: Tony Waldron, DRMS <br />Tom Kaldenbach, DRMS <br />Berhan Keffelew, DRMS <br />