2023-10-31_REVISION - M1973021 (3)

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Ninth Technical Revision(TR09)to Permit M-1973-021,Holcim-WCR,Inc.Morrison Quarry FN 3.3 Planned Satellite South Pit Reclamation Scope of Work Item 1.0 Mobilization/Demobilization This item includes all costs necessary and incidental to move equipment and supplies onto the project area; move equipment within the project area during the course of the project; and fulfill any other requirements necessary for the successful completion of this project. The operator will maintain such temporary works and equipment throughout the period of construction. This item also includes all labor, equipment, and costs associated with demobilization and clean-up of the project site following completion of the project. For the scope of work proposed, Holcim assumes that the following equipment will be mobilized to the site (this equipment list is the equipment currently used by Holcim for production and reclamation activities at the Quarry): • (2) Surface Drills (Atlas Copco D65-T4F or equivalent) • (2) Skid-Steer Loaders (Caterpillar 226D or equivalent) • (4) Front-end wheel loaders with a 15-cubic-yard bucket (Caterpillar 992 or equivalent) • (2) Bulldozers (Caterpillar D9 or equivalent) • (8) Rigid 100-ton haul trucks (Caterpillar 777 or equivalent) • (2) Water Trucks (Caterpillar 725C2 Modified - 10,000 gallons, or equivalent) This equipment will most likely be provided by the operator. The loading, hauling, and grading equipment can also be rented from Wagner Rents—Caterpillar Rental, 17800 E. 22nd Avenue, Aurora, Colorado 80011. The drill and blasting equipment and services can be procured from qualified contractors in the area. Costs for reclamation assumed loading, hauling, and grading equipment rental and procurement of a qualified drilling and blasting contractor. Item 2.1 Mined Area Earthwork: Drilling and Blasting As described in Section 3.2, it is anticipated that fill material will need to be generated on-site to provide sufficient material to complete the Satellite South Pit backfill activities. This material will be generated in the South Quarry in the footprint approved under AM07 and is anticipated to be completed concurrent with Satellite South Pit reclamation activities. Drilling and blasting will be completed using drill and blast methods currently employed at the site (refer to AM05 for drill and blasting methods). Overall slopes will range from 1 OH:1V to 2H:1V slopes, depending on target location and reclamation requirements discussed in AM07. The location(s) for generation of additional fill material will be focused on areas that will assist with final site grading and reclamation. Once drilling and blasting is complete, material will be transported to the Central Quarry where it will be segregated and stockpiled for use as fill material. For purposes of estimating these costs, it is assumed that two concurrent drilling and blasting operations will be conducted to generate and load the material for stockpiling. To complete drilling and blasting via two concurrent operations, two surface drills (Atlas Copco D65-T4F or equivalent), two skid-steer loaders (Caterpillar 226D or equivalent), and two front-end wheel loaders (Caterpillar 992 or equivalent) will be used. Four rigid 100-ton haul trucks (Caterpillar 777 or equivalent) will be used to haul material from the two drill/blast locations to the Central October 2023 1 11