Agenda - Council - 12/11/2007 - Laserfiche WebLink

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• Exhibit A Diamonds Petition for EAW December, 2007 Page 4 TH 10/169 also produces a significant amount of noise in this area. A public address system will be used to make arinouncements during the events. This will be focused at the spectators and away from the residential areas. The Owner will construct another berm 8 feet tall on the west side of the event area (in addition to the existing berms) to form a visual and audio barrier. The Anoka County Parks and Recreation Committee recommends that the conditional use permit amendment not be approved based on their opinion that it is an incompatible land use due to noise and visual impacts on the Mississippi West Regional Park. The United States Department of the Interior, National Park Service, recommends that the conditional use permit amendment not be approved based on their opinion that the noise is inconsistent with the broader goals for the MNRRA and that individual and cumulative impacts would significantly diminish public enjoyment of the river and riverfront public spaces. • The noise standards have been set forth for the entire state of Minnesota in order to protect human and wildlife well-being. However, sound is affected by the environment it is .created in. The most accurate way to determine the noise effects of the proposed events is to conduct noise monitoring following the procedures in Minnesota Rule 7030 at sensitive receptor locations during an actual event at the proposed location. If the sound is above the levels set out in the Rule, then it should not be allowed to continue because it .breaks the Rule. An EAW is not necessary, as research into. other noise studies that have been conducted in other locations will not determine the actual effects on this location. Erosion and Sedimentation Site grading will be necessary to prepare the site for various events. The total area to be disturbed converted from softball field to the more intense recreational. use is 4 .acres, or about 172,800 square feet, but the track itself will be about half of that, with the pit area taking up the other half. An Erosion and Sediment Control Plan and a Storm Water Pollution Prevention Program (SWPPP) will be submitted and approved as part of the permitting process. MPCA Best Management Practices (BMP) will be implemented to mitigate erosion and sediment, which are required for all land disturbances. Grading will be limited to the event area and construction of the berm. During grading, possible BMPs to be implemented include silt fences, storm water basins, rock construction entrances; and seeding disturbed slopes, and will be implemented as soon as possible. The Owner will wet and groom the dirt track to prevent airborne dust. Appropriate grading of the disturbed material will mitigate any potential drainage problems. • Soil and Groundwater Impacts -249-