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William A. Bear <br />Page 5 of 6 <br />October 9, 2014 <br />draining to Ditch C -17 including its intended function and the source and <br />destination of water routed through the structure. If the culvert has been installed <br />in support of mine facility or road construction it would not be considered <br />supplemental and design information will also be required. <br />• Culvert near the pump house, perpendicular to Culvert D2 - Issue resolved; BRL <br />identified the culvert as supplemental on the appropriate maps. <br />• Culvert perpendicular to Culverts J11 and J12, parallel to the Fire Mountain Canal <br />and running under the Gob Pile #3 haul road —BRL indicated that this culvert was not <br />part of the Bowie No. 2 sediment control plan. Please indicate whether the Culvert <br />perpendicular to Culverts J11 and J12, parallel to the Fire Mountain Canal and <br />running under the Gob Pile #3 haul road (conveying the Deer Trail Ditch) was <br />installed to facilitate construction of the Gob Pile #3 haul road. If the culvert was <br />installed for the haul road, please submit design information for the culvert. <br />10. Issue resolved; BRL revised designs for all structures impacted by the new culverts. <br />11. Issue resolved; BRL revised the structure detail for Culvert J11 (now J14). <br />12. Issue resolved; BRL provided design information for Half Culvert J15. <br />13. Issue resolved; the Division misread BRL's reclamation cost estimate during the initial <br />adequacy review. <br />14. Issue resolved; the reclamation costs for removal of all on -site culverts was revised under <br />the Midterm Review (MT -4) completed on October 4, 2014. <br />15. Issue resolved; BRL completed the requested map revisions. <br />Additional Items resulting from review of the TR -91 application materials: <br />16. TR -92 provided for an optional half - culvert lining for ditch J11. Revised page Vol XI App. B -2 <br />shows the half - culvert option listed under the "culverts" heading only. This is somewhat <br />misleading, as it suggests that the J11 half culvert is in addition to the trapezoidal, rip rap lined <br />ditch J11 rather than an alternative lining. Consistent with the TR -92 version of Vol XI App. 8- <br />2, please also list the approved half - culvert option under the ditch heading of the table. <br />17. Currently approved pages Exh -8 -75 and -76 include design information for Ditches F2 and F3. <br />The design information for those two ditches was updated and moved to Volume IX Appendix <br />B, pages App. B -33 and -34. Please remove the designs for Ditches F2 and F3 from Exhibit 8, <br />or update the pages in Exhibit 8 to be consistent with the designs in Volume IX Appendix B. <br />