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OF CO p k \R ~e 4':9':ly'=d \9p ~~ p f \,~ x1876} Richartl D. Lamm Governor iiiiiiiiiiiuiuiii DEPARTMENT OF NATURAL RESOURCES David H. Gelches, Executive Director MINED LAND RECLAMATION DI\ DAVID C. SHELTON, Director March 19, 1985 Mr. George Gregg Valco, Inc. P.O. Box 550 Rocky Ford, Colorado 81061 Re: Valco, Inc. - "Lamar West Pit", Prowers County File No. 81-132 Dear Mr. Gregg: after reviewing Valco's "Lamar West Pit" file, it was brought to my attention that the annual reports submitted (1981-1984) did not address topsoil storage, Grading, or cover crop planting. If not yet accomplished, the topsoil stockpile should be graded (slopes 3H:1V, or gentler) and seeded with Tallwheatgrass and Yellow Sweetclover (as committed to in the permit issued) as soon as possible for converation purposes. t appears that the mining operation is sometimes inactive for periods exceeding 180 days per year. As per Rule 1.62, you should submit a Technical ~evision to the Division stating that the affected lands may possibly be used for less than 180 days per year, such that the Temporary Cessation Notice requirement need not apply to you. It appears that the bond submitted in inadequate to cover reclamation costs incurred by a third party contracted to the work. The following calculations were compulted using the Edition 11 Caterpillar ?erformance Handbook, and the 1982 Rental Blue Book for construction equipment; estimates assumed 9.5 acres of disturbance (15.8 acres less 40Y lake area). 3ackfilling the potential 3 to 7 feet of overburden present within the affected lands, using a D9L Caterpillar dozer: aft: 43,560ft?/A x aft = 4,840/yd3 x $.60/yd3 = $2,904 x 9.5A = $27,588.00 21ft /yam d3- 7ft: 43,560ft?/A x aft = 11,293/yd3 x $. 60/yd3 = $6,775.80 x 9.5A = $64,370.10 27ft /yam 423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tei. (303) 866-3567