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STATE OF COLORADO 41('Hn411 (). I AIA.A (b w,n�•,• III III III 99 <br /> III IIII III <br /> DEPARTMENT OF NATURAL RESOURCES <br /> D. Monte Pascoe,Executive Director <br /> MINED LAND RECLAMATION <br /> 423 Centennial Building,1313 Sherman Street <br /> Denver, Colorado 80203 Tel. (303) 866-3567 <br /> David C. Shelton <br /> Director <br /> Inspection Report of March 16, 1982 <br /> By Brad Janes <br /> Re: Flatiron Sand and Gravel Company <br /> File No. 78-64; Turnpike Pit RECEIVED <br /> File No. 81-302; Deepe Farm Pit <br /> q <br /> Participants: JUN 73 <br /> Brad Janes and Jim McArdle, Reclamation Specialists Division OtMlllrraibejUgology <br /> Colorado Division of Mined Land Reclamation <br /> Michael J. Hart <br /> Flatiron Sand and Gravel Company <br /> Dorothy J. Stauber, Ed Lyell, and Harold Koerner <br /> Greater Majestic Heights Neighborhood Association Task Force <br /> I. Observations at the Turnpike Pit <br /> A. Stage 1 and 2 - Pit Areas <br /> 1. Excavation is complete on both stages. <br /> 2. Pit areas are .being backfilled with inert materials. The rate <br /> in which backfilling is occurring is slow and directly related to the <br /> availability of materials. To date, backfilling has only begun in <br /> Stage 2. Waste asphalt is being used as backfill material in Stage <br /> 2, along with dirt fill. <br /> 3. Grading on portions of the pit walls may exceed the 3:1 slope <br /> specified in the permit. However, revegetation has occurred with limited <br /> success on the steeper slopes, and they appear stable. Mr. Hart <br /> indicated that the steeper slopes have not undergone final grading. <br /> 4. Residual runoff is collecting in localized depressions of limited <br /> extent within the pit areas. The poor permeability may be due to the <br /> close proximity of the pit floor to the shale bedrock. Concerns were <br /> expressed that the ponded water could stagnate and result in mosquito <br /> propagation. <br />