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<br /> <br />Portland Limestone Quarries (M-1977-344) Permit Amendment-02 <br />Holcim US Inc, 3500 Highway 120, Florence, CO 81226 Revised pursuant to preliminary adequacy review November 20, 2023 <br />Phone (719) 288-1443 www.holcim.us 104 <br />2.8.10.3 Aquatic Habitat <br />The Mining Permit and Affected Area Boundary includes several drainages along the MTAC and within the <br />RCQ area. Holcim will implement erosion and sediment control best management practices (BMPs) to <br />prevent sedimentation of aquatic habitats. <br />