2008-03-19_PERMIT FILE - M2008001 (2)

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STATE OF COLORADO DIVISION OF RECLAMATION, MINING AND SAFETY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 Phone: (303) 866-3567 FAX: (303) 832-8106 March 19, 2008 Mr. Joe Gagliano ~ L.J. Development, Inc 256 N.Merrill Dr. Pueblo, Colorado 81007 Re: Blue Grass Graved Pit M-2008-001, Adequacy comments. Dear Mr. Ggaliano: / , COLORADO D I V[ S ION O F RECLAMATION MINING - &- SAFETY Bill Ritter, Jr. Governor Harris D. Sherman Executive Director Ronald W. Cattany Division Director Natural Resource Trustee The Division has reviewed your 112 permit application and has the following adequacy comments. General: Even though the application was called complete, to facilitate the process, in the future it helps to make sure all Exhibits are properly labeled at the top of the page rather than the bottom of the application, for each exhibit. In doing that lthe sequence of exhibits were miss labeled. Reef to comments for Exhibits "M "thru „S„ I) Exhibits "A" THRU "C" Adequate. II) Exhibit "I)" Mining plan 6.4.4 A) The applicant ;states "As part of the reclamation plan the pit floor will be plated with 4"- 6" of reject gravel material from the mining process". Post mining land use is water storage, what is the purpose of gravel placement, when water storage is the final land use for the site ?Please explain. B) Operator did clot provide a detailed design for the slurry wall. A statement by the applicant states " Slurry walls are typically constructed through the excavation of a trench of approximately one yard wide or wider. The applicant/operator will provide detailed designs in the form of a Technical revision at a future date once other permits and approvals are obtained from other agencies'. Please note, the slurry wall design, construction and QA.QC, has to be approved by the Office of State Engineer's Office, with a copy to DBMS. Once the approval is granted by SEO, the operator will have the option of posting the entire cost of the slurry wall, or construct the slurry wall, obtain an approval from SEO and then only post 20% of the total cost of construction for maintenance. C) As part of the mining plan, the applicant plans to move the Excelsior Ditch. Please provide the detailed engineering design for the portion of the ditch that will be relocated. The design has to show, the ditch. to be in dynamic equilibrium, with the existing structure and must handle the maximum anticipated flow with adequate free board. 'The applicant did not include a notarized agreement with the ditch owners that will allow them to make the change in location. Please provide a notarized agreement as required in the Rule. The only thing that was provided with the application wa;~ a statement from the applicant" The operator has agreement with the Excelsior Ditch Co. to relocate the ditch to the North of the proposed mining area. The ditch will be trapezoidal in shape being approximately 15 feet wide". D) Applicant plan:> to place several buried water line delivery systems as part of the water resources reclamation plan. Please provide the detailed design, and location of these proposed buried pipe lines. No design was included in the application. Office of Office of Mined Land Reclamation Denver Grand Junction Durango Active and Inactive Mines