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Burgmaier <br />November 20, 2012 <br />Page 3 <br />6. A discussion regarding PR -13 and the plan for continued groundwater monitoring as BRL <br />progresses mining to the north in the western mining district should be added to the permit <br />document. Following the last paragraph on page 2.04 -32i seems an appropriate place in the <br />permit for adding this discussion. The following should be described and included. <br />• Describe the current layout for up gradient and down gradient monitoring wells for the <br />western mining district and the new area to the north proposed with PR -13. <br />According to the Mine Plan in 2015 the down gradient monitoring location 2010 -1 <br />(two wells) will be mined through. What is BRLs plan for continued down gradient <br />monitoring once the two down gradient wells are lost? <br />Do the same conditions exist in the northern part of the western mining district with <br />regard to the hydraulic isolation of the Rollins Sandstone as described in the PHC <br />pages 2.05- 115 -116 and verified on Geologic Cross - Sections during the PR -12 <br />review. If appropriate add this discussion to the text and update appropriate maps as <br />needed. <br />Do the same conditions exist to the north of the western mining district with regard to <br />the economical or technical practicality of drilling very deep wells in rugged terrain <br />with limited access as previously described for the Bowie No. 2 Mine area east of <br />Terror Creek (pages 2.04 -31 -32 of the PAP). If applicable BRL will need to <br />demonstrate that these same conditions exist or otherwise provide for down gradient <br />monitoring beyond the 2010 -1 well locations. <br />If you have questions or need additional information, please let me know. <br />C: Denver File <br />