7.3. SR 01-21-2014 - Laserfiche WebLink

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The subject property is located within the Mineral Extraction Overlay District. The zoning of the property is R1a Single Family Residential. Currently there is a house and out buildings located on the property. The property is bordered by Highway 169 to the east, the proposed (CU 14-02) C.S. McCrossan parcel to the west and the reclaimed Aggregate Industries parcel to the south. It is estimated that 15-20 years will be required to complete the extraction and rehabilitation of the site but this estimated time frame is dependent upon market demand. Proposed Changes The current CUP allows for the extraction of material to within five (5) feet of the regional groundwater table. The proposed amendment includes a revision to excavation elevations to allow mining an additional five (5) feet, to the top of the regional groundwater table. Transportation/Access The primary transportation routes are east on 221St Avenue to Highway 169 and a small percentage of trucks may travel west on 221 st Avenue to serve local markets. There are two primary= site access points. The parcel north of 221"access serves the hot mix asphalt plant and is hard surfaced into the site and around the plant area. The parcel south of 221ST primary access is directly across from the northern access. This access is gravel surfaced and was established in 2001. There is also a secondary access to the southern parcel that is located approximately 250 feet to the west which served as the site access to the southern parcel prior to 2001. There is no direct access proposed to Highway 169. Average traffic generated from the site ranges from 100-150 trucks per day (200-300 truck round trips). Dust control has been implemented by hard-surfacing 221st Ave. from the exit to Highway 169. Internal haul roads to and from the plant area are hard-surfaced. Conveyors are used within the site,minimizing truck traffic on internal haul roads. Perimeter berms also limit dust movement from the Site. Internal haul roads will be watered as needed.. Hours of Operation The applicant is proposing to extend the hours of operation for the mining and operation of the hot-mix asphalt plant to 24 hours a day and 7 days a week. Current hours of operation are: 7am to 7 pm,Monday through Saturday. The Building administrator may approve longer hours for special cases. The request for extended hours of operation is being made to accommodate the growing need to supply materials for overnight construction activity designed to minimize impacts to the travelling public. The site will continue to 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. Sunde Engineering More detailed information on the proposal can be found in the applicant's narrative as submitted by Sunde Engineering. N:\Departments\Community Development\Planning\Case Files\CUP\CU 1403 Tiller Corp\CU 14-03 sr Tiller 1-14-14.docx