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dirt berm not less than thirty (30) inches in height and six (6) feet in <br />width at the base. <br /> <br />Ail reasonable means shall be employed by applicant to reduce dust, <br />noise and nuisances. <br /> <br />Noise - the maximum noise ieveI at the perimeter of the work site <br />shall be within the limits set by the Minnesota Pollution Control <br />Agency and the Environmental Protection Agency of the United <br />States. " <br /> <br />Hours - all mining operations shall be conducted between 6:207:00 <br />a.m. and '8:00 p.m. on weekdays only unless otherwise specifically <br />approved by the City Engineer or their agent. <br /> <br />go <br /> <br />E:iplosives - the use and handling of explosives shall be coordinated <br />with the City Police Department. Blasting shall occur only at hours <br />specified by the police department and at no other time. <br /> <br />Dust -operators shall utilize ali practical means to reduce the amount <br />of dust caused by the operation. In no case shall the amount of dust <br />or other particulate matter exceed the standards established by the <br />MPCA. No operations shall be allowed when wind gusts exceed 30 <br />MPH. <br /> <br />ko <br /> <br />Water pollution operators shall comply. with all applicable <br />Minnesota Pollution Control Agency regulations and Federal and <br />Environmental Protection Agency regulations for the protection of <br />water quality. No waste products or process residue, including <br />untreated wash .water, shall be deposited in any lake, or natural <br />drainage system, except that lakes or ponds wholly contained within <br />the extraction site may be so utilized. <br /> <br />Top soil preservation - all top s$il shall be retained at the work site <br />until complete rehabilitation of the work site. has taken place <br />according to the rehabilitation plan. <br /> <br />Designated haul routes shall be maintained by the operator in <br />accordance with Minnesota Department of Transportation's <br />Specification 2051.4 as £ound in the M2nnesota Department of <br />Transportation Standard Specifications for Construction 1983 <br />Edition. <br /> <br /> Subd. 9. Dangerous Operations. The operators shall change, alter or <br />modify immediately any excavation or operation therein deemed by the Council to be unsanitary <br />or dangerous or polluted or contrary to the gener~ health and welfare of the community. <br /> <br />Jan. '02 Dra_~ 75. <br /> <br /> <br />