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ENVIRONMENT, INC. <br />ADEQUACY RESPONSE - M-201 0-034 <br />JUNE 1 1 , 20 1 0 <br />PAGE 2 <br />found on the site then we do not qualify the soils depths.in <br />the report. In this case the site has may areas where the <br />minable material. is on the surface and has no vegetation <br />cover or topsoil. In other places the soil is very thin as <br />we noted in the report. In particular on-the sides of the <br />fingers there is little soil due to natural erosion. During <br />Willits'search for a gravel source in'this area they used a <br />spade to check cover depth on those areas where the gravel <br />was not exposed. Willits will be lucky to obtain enough soil <br />to cover the site with-an average of 2 inches. we cannot <br />commit to placing 4 to 6 inches on the mined areas as that <br />may require importing soil that is prohibitively costly. <br />Willits will commit to salvaging all material suitable for <br />use as growth medium and replacing it on the disturbed areas <br />to an average depth of 2 inches. <br />6.3.3 Exhibit C- Mining Plan <br />7. We expect to strip the entire 9.07 acres at once. This is, <br />covered in the Reclamation Cost estimate where we <br />explained the maximum disturbance scenario. <br />8. I should have referred to the topsoil pile locations as shown <br />on the map as approximate locations. It was not our intent <br />to lock the location of the piles as their exact location may <br />change due to factors we do not foresee once stripping be- <br />gins. Our plans are designed to be flexible so minor changes <br />like moving topsoil piles is left to the operator as long as <br />the soil is retained and protected. I have changed the <br />topsoil label-on the Mining Plan Map to designate them as <br />approximate locations so a Technical Revision will not be <br />necessary if the final locations do not exactly match the <br />maps. The 2 eastern most topsoil piles in the map would be <br />on the mine floor. <br />9. Yes, we confirm that the planned setback on the north and <br />west sides will be a minimum of 15 feet. <br />10. The bench to be created for the plant site will be reclaimed <br />since.it lies within the permit area on the north end. I <br />apologize for forgetting to put.it on the Mining Plan Map. <br />What I meant by "bench" was'that Willits would begin to work <br />into northern most gravel finger to create a level area that <br />would serve as,the processing site during mining. The <br />elevation level would be the same as the final floor when <br />mining ends. The gravel from this area would be processed <br />and stockpiled ' as leveling is done. The cost to reclaim it <br />is contained in the Reclamation Cost estimate-I provided. <br />For more details on 'the approximate location of the items <br />contained in the Plant Site area see Adequacy Figure #1 - <br />Plant Site Envelope attached.