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Page 4 <br />(10) Traffic <br />a. Except for localized jobs, traffic through Elk River <br />associated with the Operation shall be limited to U.S. <br />Highway 10 and 169. The Operator will route traffic from <br />the Operation to 225th Ave NW west to Highway 169 <br />interchange as directed by the Minnesota Department of <br />Transportation or the City of Elk River. <br />b. The number of trucks per day is limited to 35 unless prior <br />approval is given by the Environmental Administrator for <br />special cases. <br />c. As deemed necessary by the Minnesota Department of <br />Transportation, any required improvements to the <br />highway intersection must be constructed. <br />(11) Dust Control <br />a. A permit from MPCA regarding air emissions shall be <br />obtained when required and particulate emission <br />standards shall be met by the Operation. This permit and <br />all other correspondence between the Operator and MPCA <br />shall be copied to the City. <br />b. All equipment shall be located as to reduce dust to <br />adjacent properties. <br />c. A water truck shall be on site at all times when mining <br />activities are taking place to control dust as necessary. <br />Chemicals shall not be use for dust control. <br />d. A minimum of 50 feet must be paved from 225th Ave NW <br />into the pit. <br />e. The City reserves the right to require additional <br />measures to be taken, if warranted by dust problems, <br />including but not limited to reducing stock pile heights. <br />(12) Hours of Operation <br />All mineral excavation, processing, and sales activities shall be <br />conducted between the normal hours of 7:00 a.m. and 7:00 p.m., <br />s:\planning\case files\2006\cup\cu 06-20 bauerly\gravcup-amend bauerly.doc <br />