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A minimum of 3 inches of topsoil will be placed over restored areas. The restored areas will be <br />planted with enough ground cover sufficient to contain the soil. The vegetation will be inspected <br />periodically to insure it is self-sustaining. Trees will be planted where appropriate. <br /> <br />Water bodies will be created as part of the mining operation in the form of a type 2 through 5 <br />wetland complex and areas of open deeper water that may be utilized as a public fishing and <br />recreation area. The open water areas will contain some slope variation in order to make it more <br />suitable for fisheries habitat. <br /> <br />3.6 NOISE <br /> <br />Maximum noise levels at the perimeter of the Site will comply with Minnesota Pollution Control <br />Agency (MPCA) standards. Any nuisance noises will be minimized by limiting hours of <br />operation. Selected placement of gravel or peat stockpiles can also be used to control noise. On- <br />site generators may be housed in trailers or other temporary structures to minimize noise, if <br />necessary. Additional mitigative measures for noise will also include proper equipment <br />maintenance and muffling. <br /> <br />3.7 HOURS OF OPERATION <br /> <br />Mining operations be conducted between the hours of 7:00 AM and 7:00 PM, Monday through <br />Saturday. <br /> <br />3.8 EXPLOSIVES <br /> <br />No explosives will be used at the Site. <br /> <br />3.9 DUST AND ODOR <br /> <br />Dust generated during mining operations will be limited to the active mining area and haul roads. <br />Water will be delivered to the Site via a water truck and applied primarily to haul roads, but also <br />to any exposed soil/topsoil stockpiles and areas where mining has been completed as is <br />necessary. <br /> <br />3.10 POLLUTION CONTROL <br /> <br />There will be no permanent above or below ground storage tanks located at the Site. Temporary <br />or portable aboveground tanks will be used to store fuels and a majority of the fuel needs is <br />expected to be met through a portable fuel delivery vehicle. If storage will exceed 1,320 gallons, <br />a Spill Prevention Control and Countermeasure (SPCC) Plan meeting the requirements of 40 <br />CFR Part 112, will be prepared and implemented for the Site. In addition, all tanks will be <br />registered with the MPCA. MPCA Air Quality Permits are required for sand and gravel mining <br />operations and asphalt plants depending on the size of the operation and the "potential to emit." <br /> <br /> LIESCH ASSOCIATES, INC. <br />May 2004 Hydrogeologists - Engineers · Environmental Scientists .Page 7. <br /> <br /> <br />