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Lyons Quarry <br /> 112d Reclamation Permit Operations <br /> Technical Revision <br /> • (1) Bulldozer(Caterpillar D9 or equivalent) <br /> • (2)Articulating haul truck (Caterpillar 740 or equivalent) <br /> • (1) Skid steer tracked loader(Caterpillar 262 or equivalent) <br /> • (1) Rock Screen for Type M riprap <br /> This equipment will most likely be provided by the selected contractor; however, the equipment can <br /> also be rented from Wagner Rents—Caterpillar Rental, 1317 E Mulberry St, Fort Collins, CO 80524. <br /> Item 2.0— Project Safety Plan and Implementation <br /> The project will involve working around inactive quarry slopes and associated hazards, and the <br /> contractor must comply with all OSHA regulations. This task includes all of the operator's and sub- <br /> contractor's expenses for employee time, labor, materials, and safety equipment and safety training <br /> necessary for preparing and executing a job safety plan. <br /> Item 3.0— Erosion, Sedimentation, and Dust Control Plan <br /> This item covers the design, installation, maintenance, and removal of temporary erosion, <br /> sedimentation, and dust control features. The operator will be required to install these sediment <br /> control features prior to any ground disturbing activities and maintain them throughout the duration of <br /> the project. The work to reclaim areas within the floodplain is anticipated to be performed during low <br /> flow conditions on South St. Vrain Creek to minimize the impacts of snowmelt runoff within the work <br /> areas. The installed temporary erosion and sediment control features assume BMP's in accordance <br /> with the Boulder County Storm Drainage Criteria Manual, including but not limited to Temporary <br /> Embankment Protectors, Silt Barriers and Sediment Control Logs. <br /> Dust generated from the project area during work and off-work periods will be controlled and kept to <br /> a minimum. The operator will be required to develop and implement a Dust Control Plan, including <br /> Wind Erosion/Dust Control BMP's and dust suppression of working areas during working and non- <br /> working periods, including weekends, throughout the duration of the project. <br /> Item 4.0— Site Survey <br /> This task consists of performing all surveys, measurements, and computations required by the <br /> specifications to accurately track that the materials are imported and exported according to the <br /> design drawings. <br /> Item 5.0— Disposal of Excavated Materials <br /> This item covers off-site disposal of debris materials that may be encountered during excavation of <br /> the floodplain areas. While most of the mining infrastructure has been accounted for, the potential for <br /> deposition of debris from upstream sources following the 2013 flood remains. <br /> March 2021 1 15 <br />