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10. <br /> <br />11. <br /> <br />12. <br /> <br />13. <br /> <br />14. <br /> <br />All access roads from the mining operation to the public streets shall be maintained in <br />order to minimize dust. <br /> <br />The maximum slope other than the working face shall be sloped on all sides no steeper <br />than a rate of 2 foot horizontal to 1 foot vertical. In no case shall the slope of the working <br />face be left unattended with a slope greater than 2 feet horizontal to 1 foot vertical. When <br />mining operations are anticipated to be discontinued for an interval greater than one <br />working day, the slopes shall be flattened to a grade no steeper than 4 feet horizontal to 1 <br />foot vertical. <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 />Prior to commencing any mining operations, a cash escrow or letter of credit approved as <br />to form by the City in the amount of Seven Thousand Five Hundred Dollars ($7,500.00) <br />shall be deposited with the City. This financial guarantee may be used by the City to pay <br />for the cost and expense of repairing any public right of ways due to the mining <br />operation, pay for any cost associated in administering the requirements of this Chapter of <br />the City Code, and to pay for any restoration of the worksite not properly restored upon <br />completion. <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 silt fence is <br />placed along the property line to prevent sediment from washing onto the adjoining <br />property. Any erosion which causes gullies of greater than one (1) foot within twenty- <br />five (25) feet of a property line shall be regraded within forty-eight (48) hours of the <br />precipitation event that caused the erosion. <br /> <br />Stockpiles of mined materials and/or topsoil shall not exceed 900 cubic yards in total nor <br />six (6) feet in height. <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 is'dued 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 $1,100,000 property damage. <br /> <br />bo <br /> <br />Said policy shall be for the full period Sfthe 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 />c. 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 <br /> <br /> <br />