Laserfiche WebLink
Tom Bird <br />March 3, 2009 <br />3. Appendices 11 (1, 2, 3 and 4) <br />Page 2 <br />d. Please either submit a revised SEDCAD run for the East Clear Water Ditch that <br />uses loam as the channel material, or provide information supporting the use of <br />shales/hardpan in the SEDCAD run. Map King II-006 indicates the ditch is <br />excavated in an area underlain by loam. As seen during the inspection on June <br />17, 2008, much of the ditch appears to be excavated in soil (Photo 7 in the <br />inspection report). Photo 7 also shows the ditch had sideslopes nearer 1:1, rather <br />than the 2:1 indicated in the SEDCAD run. If necessary, please modify the ditch <br />sideslopes to 2:1 in the field before submitting a revised as-built SEDCAD run for <br />the ditch. <br />e. Please add the following three items to the minimum specifications for channel <br />liners: filter specifications, liner thickness, and specifications for riprap size <br />gradation. <br />f. Please submit a new P.E.-stamped cover page for the SEDCAD runs. The stamp <br />on the previously submitted cover page pre-dates the SEDCAD runs. <br />g. Please add to the front of Appendix 11(4) a map showing the outlines of the <br />undisturbed drainage basins (similar to Figure 1 of Appendix 11(1) that is in the <br />currently approved permit application). <br />h. Please keep the existing "Safety Factor Analysis for Sediment Pond" in the permit <br />application as new Appendix 11(5). This analysis currently is Appendix I I (D) in <br />the permit application. Please submit a new cover page and first page for the <br />analysis that shows it as Appendix 11(5). <br />4. Appendix 10. <br />a. Please re-submit the as-built certification statement for the haul road, with the <br />following changes: <br />i. Identify the section of haul road that is being certified by referring <br />to reference points on a map that is in the mining and reclamation <br />permit application, for example Map King II-007A. (The <br />certification that was submitted refers to design drawings dated <br />5/30/07 that are not part of the mining and reclamation permit <br />application. The purpose of the certification is to document that <br />the haul was built according to the design in the permit application <br />which is shown on Map King II-007A and in Detail 5 of Map King <br />II-007B). <br />ii. Provide the certification not in letter form, but as a page with a title <br />at the top ( for example "Haul Road Certification - King II Mine"), <br />ready to be inserted into the permit application.