Laserfiche WebLink
<br />Cont,ibuton CMLRB 112 Petntlt Appllcatlon <br />Agile Stone Syetema, Inc. <br />The map scale has been enlarged and improved. The area was flown aerially <br />with suitably located surveyed control points. See maps in Exhibit C. Also, <br />an additional boundary line was added to the Mining Base Map to identify <br />atTected vs unaffected lands. Affected acreage is thoroughly discussed in <br />Exhibits D and L. <br />8. A map in this exhibit titled "Soil Salvage Units" shows a salvage unit E which is <br />nearly entirely outside of areas you have shown to be affected by other mining <br />operations. If you intend to salvage soil from this unit, you must include it in the <br />affected land's boundary and include the treatment of this area in all other <br />appropriate exhibits. The same holds for portions of salvage unit D. Please <br />explain the salvage unit boundaries. <br />Unit E is only outside the mining operations if Phase II and III are not <br />considered. Since we have clarified the inclusion of Phases II and III above, <br />unit E is clearly within affected mining operations. It is clearly shown within <br />the afTected land's boundary on the Mining Base Map and is included in <br />discussion in all exhibits. The salvage unit boundaries were identified from <br />field work conducted by Cedar Creek Associates and Azurite. The <br />boundaries do not represent where soil will be taken rather they represent <br />the boundaries of each distinct soil unit type. The Mining Base Map clearly <br />shows the boundaries of where affected land topsoil will be salvaged. <br />EXHIBIT D -Mining Plan <br />1. Your introduction states that "disturbed sites will be graded to be free-draining to <br />small sediment ponds which will discharge via infiltration and through check <br />dams." The Division assumes that these ponds and check dams are separate <br />surface water/erosion control structures from those described in your section 1.6. <br />Please show the location of these ponds on the Mining Plan Map. Provide plans <br />and specifications for the construction of the ponds, and provide their capacities. <br />There are no small sediment ponds and check dams. The gravel bar affected <br />lands will be graded to utilize the lower elevation gravel pits should they be <br />necessary for any storm events. While suitable grading, ditches and swales <br />have been included in all ezhibit discussions and engineered drawings, <br />percolation tests as well as surface observation of the site demonstrate that <br />percolation vastly exceeds any known or ezpected storm event. All <br />structures including stormwater berms and ponds as well as any other <br />related structure are shown on the engineering diagrams provided and <br />discussed in all appropriate exhibits. <br />3 <br />