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Susan Burgmaier -5- December 29, 2014 <br />BRL: Please see revised Map 21 -1. <br />28. DRMS: A culvert not identified on permit application maps was observed, during <br />the Division's October 15, 2014 inspection, on the west end of Topsoil Stockpile D. The <br />culvert crosses under the Gob #1 haul road, carrying drainage from Ditch F9 under the <br />road. The Division required BRL to identify the culvert, provide design information, and <br />clear the inlet of the culvert; or remove the culvert and continue to maintain ditch F16 to <br />carry flow from ditch F9. BRL indicated that the culvert would be identified as a <br />supplemental culvert under TR -91. It does not appear that the culvert has been <br />identified on Maps 20 or 21 -3. Please either revise the maps to include the <br />unnamed culvert near Topsoil Stockpile D as a supplemental culvert or provide <br />design information for the culvert. <br />BRL: The culvert is shown on Map 20, but did not get carried over to Maps 21 or 15. <br />Please see revised Maps 21 -3 and 15 -3. <br />29. DRMS: The utility output for Culvert C -4 on page Exh. 8 -32vii and the tables on <br />pages EXH. 8 -29 and EXH -8 -31 both indicate that the design discharge entering <br />Culvert C -4 is 6.36 cfs, from Ditch C -4. The utility output for Ditch C-4, on currently <br />approved page Exh -8 -62 indicates that the peak discharge through Ditch C -4 is 6.22 <br />cfs. Please verify the peak flow from Ditch C -4 and either revise the ditch utility <br />output on page Exh -8 -62 or the information on pages Exh. 8- 32vii, EXH. 8 -29, and <br />EXH -8 -31 so that the reported discharge is consistent in all four locations. If the <br />design discharge is not 6.36 cfs, please also revise the design information for all <br />structures downstream of Culvert C -4. <br />BRL: The design discharge is 6.36 cfs. Please see revised page Exh. 8 -62. <br />30. DRMS: Revised page Volume XI, App. B -67 does not mesh with the version of <br />Appendix B submitted September 24, 2014. The September version of page B -67 is <br />the fourth page of the 100 yr Sedcad run for Pond J. The page B -67 submitted October <br />9, 2014 is for the 0.6% section of the East Collection Ditch (that page was B -72 in <br />September). <br />Revised page Volume XI, App. B -72 is also out of synch with the September version. <br />The information BRL is revising on page B -72 replaces the September version of page <br />B -77. <br />Additionally, revised page Volume XI, App. B -73 is not consistent with the September <br />version. The information BRL is revising on page B -73 replaces the September version <br />of page B -78. <br />