2023-10-03_REVISION - M1977344 (12)

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Bear Creek Quarry (M-1977-344) Permit Amendment Holcim US Inc, 3500 Highway 120, Florence, CO 81226 Phone (719) 288-1443 www.holcim.us 6 1.0 INTRODUCTION Holcim (US) Inc. (Holcim) submits this application to the Mined Land Reclamation Board (MLRB) to amend M-1997-344 Bear Creek Quarry (BCQ) to include a new limestone resource in Fremont County and Pueblo County, CO. The amendment application will include and revise the approved mine application M-2002-096 Ranch Land Rock Pit #1 (RP1). With this amendment application, Holcim will rename the new quarry area to Red Creek Quarry (RCQ). The proposed additional permit area and affected area is approximately 4079 acres. The project will include an open pit limestone quarry, a preliminary sizing plant in the quarry, an over land convey or system and a blending hall on the north end of the conveyor corridor adjoining BCQ permit area. 1.1 Site Background Mac Clevenger of Pueblo, CO had two passions: automobile sales and ranching. Born in 1889 in Utica, Kansas, Mac moved to Pueblo in 1914 where he worked as a cowboy on a ranch near Arlington, CO. In 1917 he began selling used automobiles. He operated the Durant and Star dealership in Pueblo from 1920 to 1928 and continued in the automobile industry until his retirement in July of 1959. While building his automobile sales business, Mr. Clevenger purchased and ranched land west of Pueblo. At one time Mac was the owner of the property that is now Pueblo West. The Clevenger Ranch that straddles the Fremont and Pueblo County lines, began with a lan d purchase south of the Portland cement plant from the family that owned the Campbell Soup, Co. The ranch was extended through many purchases until it reached its sprawling 32,000 acres. After the passing of Mac’s wife, Maurine Clevenger, on August 7, 2000, Mac’s heir chose to sell the property. Mr. Billy Peetz, a Colorado Springs investor, purchased the ranch in 2001. Mr. Peetz performed geologic exploration across the ranch, identifying extensive reserves of construction materials including cement production grade limestone, sand and gravel. As Ranch Land LLC, Mr. Peetz permitted two construction material quarries and sold another aggregate reserve in the northwest portion of the ranch to Steve Schnurr of Rocky Mountain Aggregates LLC, now owned and operated by Martin-Marietta. In July 2011, Holcim purchased six adjoining land sections (6 -640 acre areas), a parcel adjoining the current plant area and a road/conveyor corridor Right-of-Way (ROW) from Ranch Land LCC. Two sections, the north parcel adjoining the plant and the corridor are in Fremont County. Four sections are in Pueblo County. Section 24 in Fremont County is permitted as RP1. The Division of Reclamation Mining and Safety (DRMS) granted Holcim Succession of Operators for RP1 on November 23, 2011 that required the posting of a financial warranty in the amount of $43,500. 1.2 General Project Description The RCQ will be a new limestone quarry providing material to the cement plant located at 3500 State Hwy 120, east of Florence, CO. Activities associated with this amendment application include surface mining, preliminary material sizing, material conveyance from the quarry to the cement plant and reclamation. These activities will be presented in more detail in subsequent sections and exhibits. The timelines presented herein are based on anticipated mining and processing rates, market demand and other variable factors. The timelines may change, resulting in a shorter or longer overall life of mine. Site development including construction of the conveyor corridor and access haul road from RCQ to the plant will begin soon after approval from MLRB. Construction activities are anticipated to take two years. Preliminary mine development will begin after the interior haul road is passable. During mine development and during mining, plant growth material will be salvaged in stockpiles and stabilized for use during final reclamation.