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M- Iq$a- iat <br />YQ-03 <br />Russ Means <br />DRMS <br />1313 Sherman St. Rm. 215 <br />Denver, CO 80203 <br />(303)866-3567 <br />Mid-Continent Limestone Quarry ? <br />Technical Revision #3 - Rock Dust Mill Installation <br />Dear Mr. Means: <br />October 13, 2009 <br /> <br /> <br />With the approval of the BLM and County, CaIX Minerals, LLC will be installing a mill to further process <br />quarried limestone into rock dust. The mill building will be located within the area designated as "Fines <br />Storage" in the current permit. Reclamation of the pad area will be completed using the current <br />reclamation plan for the site. Flat areas will be topsoiled with stockpiled material and seeded. The <br />disturbed 1HAV slope will be backfilled to a 2HAV slope. The building will be a 125'x50' steel building <br />erected on a concrete pad with footings. Reclamation cost for the building and mill components is <br />assumed to equal the salvage value. Concrete pad and footings of the building will be covered by a <br />.minimum-of 3' of fill- by_the_backfilling_of_theslope-Therefore, it-wilLnot need-to-he .r_emoved. A table _ <br />below estimates the reclamation cost of the mill. <br />Activity Quantity Unit Price Total Cost <br />Slope Backfill 5,000 CYD $1.50 CYD $7,500 <br />Spread Topsoil 1,600 CYD $1.50 CYD $2,400 <br />Seeding 1 Acre $2,000/acre $2,000 <br />Remove Building $0 $0 <br />Remove Equipment $0 $0 <br />Mobilization $2,000 2,000 <br />Total $13,900 <br />The estimated increase in bond for the proposed technical revision is $13,900. The current bond is <br />$27,240. We anticipate a bond recalculation as part of the review of the site and this application. <br />Thank you, <br />Ben Miller <br />Mine Manager <br />Attachment: BLM Mill Approval Letter, Technical Revision Fee $175 <br />CaIX Minerals, LLC (720)881-7987 (Phone) 2080 W. Hamilton PI <br />www.calxminerals.com (303)761-4778 (FAX) Sheridan, CO 80110