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Mr. Chris Rowe <br />December 8, 2006 <br />Page Four of Six <br />a. No SEO Requirements. <br />b. Material compaction 95%. <br />c_ Topsoil and overburden with + - 2% moisture and 40+ % fines content. <br />d. see enclosed "Typical Liner Section" <br />e. Lifr thickness one foot <br />f. Top width 25 feet. <br />g. See attached letter report from Scott, Cox and Associates regazding lateral <br />stability and mining setbacks. <br />h. 0.5 to 1.0 feet <br />i. see attached. <br />j. In the unlikely event that the liner does no meet SEO criteria the failed liner <br />section will be repaired or replaced. <br />k. As discussed above, there is any number of successful examples of lined pits in <br />the area. Going back to the mid 1970's, the White Rocks Pit east of Boulder was <br />likely the first sand and gravel pit to employ the compacted liner technique. More <br />recently, the Deepe, Lyons, Nelson and Heaton Pits have all successfully <br />constructed, to one degree or another, compacted liners in order to either <br />eliminate or reduce groundwater seepage. Overall, the construction aggregates <br />industry has over 30 years experience constructing compacted clay liners at sand <br />and gravel pits. The Camenish Borrow Pit liner will be stable and will operate as <br />it is intended to. <br />1. The estimated cost to install the compacted liner at the Camenish Borrow Site is <br />$400,000.00. <br />63.5 EXHIBIT E -MAP <br />Excavation (Mininel Plan Map <br />1. Please see attached Excavation Plan Map. <br />2. Please see attached Excavation Plan Map. <br />3. Because the Idaho Creek Resources sand and gravel pit has a Substitute Water <br />Supply Ptan approved by the SEO it can be assumed that there is a well permit for <br />their pit, which is located within 600 feet of the proposed Camenish Borrow Site. <br />4. Please see attached Excavation Plan Map. <br />