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Vibrational waves from blasting will not be felt at the structures surrounding the quarry. Blast <br /> generated vibrational waves travel radially outwards. A line drawn from the blast location to the <br /> southern gas station and Black Hawk City Water Plant, as shown on Figure 2, passes through the <br /> rock of the quarry initially then through the air prior to reaching the area. Vibrational waves from <br /> blasting cannot be transmitted through a mixed medium; therefore, property owners south of the <br /> quarry may hear blasting, but they will not feel vibration because of blasting. <br /> Figure 2. Impacts to surrounding wells from blasting at the Young Ranch Resource. Base image <br /> from the Colorado Division of Water Resources. <br /> Young Ranch Resource <br /> November2020 10 CrngIxwicki and As.oi iatmNAA <br />