7.4. SR 01-21-2014 - Laserfiche WebLink

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wetland will be changed resulting in a change in the related biological conditions. These potential impacts to the wetland must be addressed in accordance with the Minnesota Wetland Conservation Act (WCA). 14. Hours of operation shall be allowed to be seven (7) days a week, 24 hours a day. Background/Discussion The applicant is seeking a Conditional Use Permit (CUP) for Mineral Excavation on a 45± acre parcel south of 2215`Avenue and southwest of the existing Tiller Corporation mining operation. The purpose of the extraction is to remove an existing deposit of sand and gravel and process it into construction aggregate and to process recyclable concrete and asphalt for use in the construction industry. Proposed activities will include clearing and grubbing, stripping of topsoil, extraction,processing and stockpiling of aggregate, and stockpiling and processing of recyclable concrete and asphalt. Crushing and screening will occur on site; the location of these operations will vary due to the evolving active face. The subject property is located within the Mineral Extraction Overlay District. The zoning of the property is R1 Single Family Residential. Environmental review in the form of the EIS was completed in 1994. It is estimated that 20-25 years will be required to complete the extraction and rehabilitation of the site but this estimated time frame is dependent upon market demand. Transportation/Access The primary transportation routes are east on 221"Avenue to Highway 169 and a small percentage of trucks may travel west on 221St Avenue to serve local markets. An access point will be established on the western portion of the property off of 221ST Avenue and will be paved approximately 100'into the site. Average traffic generated from the site is anticipated to range from 50-100 truck loads a day (100-200 truck round trips). Dust control will include watering internal haul roads,blacktopping the site entrance,utilizing conveyors as practical to minimize truck traffic on internal haul roads, and the establishment of perimeter berms. Internal haul roads will be watered as needed. The City Engineer requested that the berm in the northeast corner of the property be adjusted further south for better sightlines on 221St Avenue. Hours of Operation The proposed hours of operation are 24 hours a day, seven days a week, to accommodate the growing need to supply materials for overnight construction activity designed to minimize impacts to the travelling public. The site will be subject to the MN State noise standards and will comply with the stricter nighttime standards during the period from 10:00 p.m. to 7:00 a.m. as defined by MN Rules Chapter 7030,Noise Pollution Control. N:\Departments\Community Development\Planning\Case Files\CUP\CU 14-02 CS McCrossan\CU 14-02 sr McCrossan 1-14-14.docx