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William A. Bear <br />Page 4 of 6 <br />October 9, 2014 <br />9. The Division's requested design information or clarification that certain structures are not <br />mine related. After reviewing BRL's September 24, 2014 response, we have the following <br />comments: <br />• 6" drain near Culvert B13 — Issue resolved; BRL removed this culvert from the maps. <br />• 18" culvert near pond diversion structure along main haul road — BRL indicated that <br />the culvert had been designated as C -G6 and relocated with TR -87. <br />The Division might not have made clear which unnamed culvert was in question. On <br />Maps 15 -2 and 21 -2, there is an unnamed 18" culvert located at the diversion <br />structure that directs flow to Pond B or Pond C, along the main haul road. Please <br />provide design information or clarification regarding the 18" culvert located near <br />the Pond a /Pond C diversion structure. <br />• 18" culvert on the south end of the office parking area — Issue resolved; BRL <br />removed this culvert from the maps. <br />• 36" culvert on the D Bench — BRL identified the culvert as C26 on Map 15 -2 and <br />provided design information as requested. Please update Map 21 -2 to include a <br />label for Culvert C26, and add Culvert C26 to the Culvert Summary table on page <br />EXH -8 -31. <br />• Culvert under the conveyor between the two stockpiles on the D Bench — Issue <br />resolved; BRL clarified that this culvert is C5. <br />• 12" culvert at the outlet of Culvert C12 — Issue resolved; BRL identified the culvert on <br />the appropriate maps and included design information. <br />• CMP for mine water parallel to Culvert C8 - Issue resolved; BRL identified the culvert <br />as C25 on the appropriate maps and included design information. <br />• Culvert west of Culvert C8, east of Culvert B3 — Issue resolved; this culvert is labeled <br />B7 on Map 15 -2. <br />• ADS drain into Ditch C12 —BRL identified the culvert as supplemental. Please <br />provide additional information on the ADS drain that drains Spring S -8, including <br />its purpose and when it was installed. If the drain has been installed in support of <br />mine facility or road construction it would not be considered supplemental and <br />design information will also be required. <br />• Half culvert on the east outslope of the office bench, draining to Ditch C -17- BRL <br />indicated that this culvert is not part of the sedimentation control plan. Please <br />provide a description of the half culvert on the east outslope of the office bench, <br />