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Page 5 <br />c.Water, but no chemical agents, shall be used to control dust as <br />necessary. <br />d. The City reserves the right to require additional measures to be taken <br />if warranted by dust problems including, but not limited to, reducing <br />stock pile heights. <br />15) Traffic <br />a.All traffic associated with the operation shall only use County Road <br />33 back and forth to U.S. Highway 169. Except for localized jobs, <br />no traffic from this operation shall use Proctor Avenue or County <br />Road 33 to the west of the site. Operator shall post notice of these <br />requirements at the exit from their site. Failure to control traffic <br />from this Operation shall constitute a violation of this Conditional <br />Use Permit. <br />b. The location of the access to the site shall be determined <br />by the Sherburne County Engineer. An access permit <br />from Sherburne County may be required of the operator. <br />16) Wash water used in the operation shall be recycled in a two- <br />pond system allowing for sedimentation. <br />17) Noise <br />a.Noise from screening and crushing associated with this <br />operation shall be controlled by location on the site, the <br />placement of stockpiles, type of equipment and ultimately <br />by placing them in soundproof buildings,if necessary as <br />determined by staff. <br />b. Microwave back-up alarms or equivalent alternative <br />technology shall be used as determined necessary by staff. <br />c.A turnaround will be provided within the pit so that trucks not <br />equipped with microwave back-up alarms will not need to back-up. <br />d. The state's noise level standards for daytime and nighttime hours <br />must be adhered to. <br />e.A noise assessment must be completed after sixty (60) days of <br />operation in the season and at other times as deemed necessary. <br />18) Hours of Operation. <br />All mineral excavation and processing activities shall be conducted <br />N:\Departments\Community Development\Planning\Case Files\CUP\CU 17-14 Tiller