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All access roads from the mining operation to the public streets shall be maintained in order <br />to minimize dust. <br /> <br />The maximum slope other than the working face shall be sloped on all sides no steeper than <br />a rate of 2 foot horizontal to 1 foot vertical. In no case shall the slope of the working face be <br />left unattended with a slope greater than 2 feet horizontal to 1 foot vertical. When mining <br />operations are anticipated to be discontinued for an interval greater than one working day, <br />the slopes shall be flattened to a grade no steeper than 4 feet horizontal to 1 foot vertical. <br /> <br />10. <br /> <br />No mining operation shall be conducted closer than 30 feet to the right of way line of any <br />existing or platted street, road or right of way. <br /> <br />11. <br /> <br />Prior to commencing any mining operations, a cash escrow or letter of credit approved as to <br />form by the City in the amount of Seven Thousand Five Hundred Dollars ($7,500.00) shall <br />be deposited with the City. This financial guarantee may be used by the City to pay for the <br />cost and expense of repairing any public right of ways due to the mining operation, pay for <br />any cost associated in administering the requirements of this Chapter of the City Code, and <br />to pay for any restoration of the work"site not properly restored upon completion. <br /> <br />12. <br /> <br />The Permit Holder shall implement sediment and erosion control practices. No mining <br />activity shall occur within twenty-five (25) feet of a property line unless a silt fence is placed <br />along the property line to prevent sediment from washing onto the adjoining property. Any <br />erosion which causes gullies of greater than one (1) foot within twenty-five (25) feet of a <br />property line shall be regraded within forty-eight (48) hours of the precipitation event .that <br />caused the erosion. <br /> <br />13. <br /> <br />Stockpiles of mined materials and/or topsoil shall not exceed 900 cubic yards in total nor six <br />(6) feet in height. <br /> <br />14. <br /> <br />The permit holder shall file with the City a liability insurance policy or certificate of such <br />insurance acceptable to the City and issued by an insurance company authorized to do <br />business in the State of Minnesota. <br /> <br />a. The policy shall insure the permit holder for the sum of at least $300,000 for injury to <br /> one person and $500,000 for one accident, and at least $100,000 property damage. <br /> <br />bo <br /> <br />Said policy shall be for the full period of the permit and shall provide for the giving of <br />10 days prior notice to the City by registered mail of termination, cancellation or <br />amendment of the policy. <br /> <br />Co <br /> <br />In the event said policy is terminated for any reason, the permit shall be automatically <br />suspended upon the day the policy terminates unless a new policy complying with this <br />item is obtained and filed with the City prior to the termination of the policy in force. <br /> <br /> <br />