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Susan Burgmaier -4- September 24, 2014 <br />• ADS drain into Ditch C12 - Not part of sedimentation control plan, <br />color has been changed. Pipe drains Spring S -8. <br />• Half culvert on the east outslope of the office bench, draining to Ditch C -17 <br />- Not part of Sedimentation control plan <br />• Culvert near the pump house, perpendicular to Culvert D2 - Not part of <br />sedimentation control plan, added to 'undesigned culvert layer'. <br />• Culvert perpendicular to Culverts J11 and J12, parallel to the Fire <br />Mountain Canal and running under the Gob Pile #3 haul road - Flow <br />carrying the deer trail ditch - Not part of sedimentation control plan, <br />added to 'undesigned culvert layer'. <br />BRL: Please see response to each bullet point above. <br />10. BRL has included design information for newly named Culverts J10 and J11, <br />both draining to Ditch J8. Please submit revised design information for Ditch J8 to <br />account for the additional flow generated from Culverts J10 and J11. <br />BRL: Adding flow from culverts J -13 & 14 (previously named culverts J10 and J11) <br />impacts ditches, J3, J4, J7, J8, J9, J14, J15, J18 and culverts J1, J7, & J8 In addition, <br />the pond sizing requirements have changed. For simplicity, Appendix B in its entirety <br />has been re- printed. Please see revised pages Volume XI, Appendix B. <br />11. The design information provided on page Volume XI, App. B -87 indicates that the <br />peak discharge at structures #3 (Culvert J11) and #4 (Culvert J10) is 1.42 cfs. The <br />structure detail output for Culvert J11 is based on 1.91 cfs. Where is the additional <br />0.5 cfs entering Culvert J11, and what/where is the drainage area contributing the <br />additional flow? <br />BRL: Please see revised Structure detail for C -J14 (old C -J11 designation) on page <br />Volume XI, App. B -37. <br />12. BRL has proposed the installation of a half culvert to convey flow from Culvert <br />J11 to Ditch J8. Please provide design information for the half culvert. <br />BRL: Please see design of the half culvert, Culvert J -15, on page Volume XI, App. 13- <br />38. <br />13. The reclamation cost estimate provided by BRL indicates that Culvert C22 will be <br />removed. The revision application materials include a revised design for Culvert C22. It <br />