Laserfiche WebLink
NEWMONT <br /> � ppie � .eK 3 Sr �' t �b•. <br /> Should be taken". Change "should"to "shall". <br /> f. A23, L VSC Riser Details. Section U. 6I hat is the depth of'the trench in which the three M <br /> Diu. SDR 11 pipes tire to be laid, or ulternativeh•, what is the minimum low volume.solution <br /> collection fill required to cover the 1 X" Dia. SDR 11 pipes' <br /> g. A25 and A26. These two drawings appear to be aimed at reclamation stormticater <br /> management and a revision to that proposed in Volume III, Appendix 3. The Division could <br /> not find calculations or analyses to support the proposed designs. Preliminary comments <br /> include the,following: <br /> i Drown drain channels on Drawing_4 23 will require energy dissipation structures <br /> at the terminus or where they transition to channels at near 90 degree angles. <br /> d Detail Z on .426. Grouted riprap is not recommended in areas that experience <br /> significant freeze thaw cycling. If grout is used, weep drains will be necessary to <br /> reduce potential.seepage uplift pressure. <br /> N Detail .413 oil _4 26. The typical bench channel depicts a sharp crest between the <br /> channel section and the outer fill slope. Sharp crests such as this tend to erode <br /> rather quickly, thereby reducing the flow capacity of the channel, leading to <br /> overtopping and channel,failure. <br /> Newmont Response: <br /> a. The underground working remediation details have been added to the Issued for Permitting Drawings <br /> as Drawing A27 in Appendix 1. <br /> b. In the very unlikely event that the Phase 3 PSSA should reach solution storage capacity,the <br /> "Transmittal Trough"is depression to allow solution from the Phase 3 PSSA to flow into the Phase I <br /> PSSA. <br /> c. The risk of large boulders not only pose a risk to the geomembrane, but to the contractor's employees <br /> during construction. To make sure the area is safe to work, the contractor will be required to remove <br /> exposed large boulders and develop a smooth, compacted final surface. <br /> d. The drawing has been renamed"Leak Detection Details" and the notes regarding to the erosion <br /> control details have been removed. <br /> e. Note 2 has been updated. <br /> f. The depth of the depression is 2 feet, and there would be 3.5 feet of low volume solution collection fill <br /> over the 18' Dia. SDR l 1 pipes. <br /> g. These comments will be addressed in the technical revision to be submitted at a later date. <br /> The updated design drawings are included with the updated design report provided in Attachment 13. <br /> DBMS Comment(italics): <br /> YJ. . pendix E - Technical Specifications. The following comments relate to the technical <br /> specifications provided in.4ppendix E of Appendix 1. <br /> a. 02 200 Earthworks. .4 telephone conversation with C'C'&V representatives on 130 2020 <br /> brought up a proposed change in the spec•ific•ations for• drain corer fill (DC'F). Please <br />