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harmony related to the following primary factors: noise, visibility, dust, truck traffic and impact <br /> on the environment. Coulson addresses each of these concerns below: <br /> a) Noise <br /> Several neighbors have identified concerns that mining operations will disturb their day <br /> because mining operations produce a high level of noise. Coulson addressed this concern by <br /> conducting multiple noise studies to determine the amount and impact of noise generated by <br /> mining operations, and by implementing changes to the Application to address noise generation <br /> so as to ensure compatibility and neighborhood harmony. <br /> The complete analysis of the noise study results is included in the Application. Colorado <br /> Revised Statute § 25-12-103 and Larimer County Ordinance No. 97-03 establish the maximum <br /> decibel level (dBA) of noise allowed in residential areas. The Project noise study calculated the <br /> current noise levels in the surrounding neighborhoods as well as the projected noise of each stage <br /> of the mining process. All stages of the Project will emit less than the maximum level of noise <br /> allowed in the residential community. <br /> Even though all stages of the Project are below the maximum decibel level, Coulson <br /> identified the noisiest stage of the Project and updated its Application to further reduce noise <br /> generated by the Project. Specifically, the original Application contemplated using haul trucks to <br /> transport the sand and gravel mined from the Cells to the Kirtright Property processing facility. <br /> The noise study revealed that the haul trucks produced the highest decibel levels of the Project. <br /> In response, Coulson removed the haul trucks from the Application and will instead use a <br /> conveyor belt to transport the sand and gravel from the Cells to the Kirtright Property. This <br /> change will result in even lower Project decibel levels, thus improving compatibility and <br /> neighborhood harmony. <br /> 1 <br /> Additionally, the earthen berm described above will decrease noise in two ways. First, by <br /> utilizing the topsoil to construct the berm, the need to remove the topsoil from the Property via <br /> haul trucks is eliminated. Second,the earthen berm will itself serve as a noise barrier by reducing <br /> { the direct line of noise traveling between the Project and the adjacent residential developments. <br /> I <br /> Lastly, Coulson has altered the Project operation times to best accommodate the <br /> surrounding residential area. Coulson will not operate after 5:00 P.M. any day of the week; will <br /> limit Saturday operations to only hauling finished product from the Kirtright Property; and will <br /> have no any activity on the Property or the Kirtright Property on Sundays. Avoiding evening and <br /> 1 <br /> weekend operations serves to eliminate noise during the periods where it is likely to have the <br /> greatest effect on the most people present at their homes. <br /> i <br /> r <br /> r <br /> 6 <br /> 46 <br /> E <br /> e <br /> r <br />