7.3. SR 01-21-2014 - Laserfiche WebLink

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City of Elk - Request for Action River O. To Item Number Mayor and City Council 7.3 Agenda Section Meeting Date Prepared by Public Hearinj 2 1, 2014 Chris Leeseber ,Park Planner- Planner Item Description Reviewed by Conditional Use Permit: Tiller Corporation for Jeremy Barnhart,Deputy Director, CODD Mineral Excavation and Hot-Mix Plant, Case No. Reviewed by CU 14-03 Cal Portner, City Administrator Action Requested Recommend,by motion, approval of the Conditional Use Permit (CUP) amendment with the following conditions: 1. The applicant shall execute a CUP Agreement outlining the terms and conditions of approval of the mining operations. 2. A mineral extraction license shall be obtained annually. 3. The following conditions shall be addressed to the satisfaction of the city's environmental consultant: a) The anticipated groundwater elevation at the site is anticipated to range from 954 on the east and 951 on the west. The applicant shall provide complete references for available groundwater elevations. The applicant must also address the use of the historic high groundwater levels in establishing the excavation base grades. The "Excavation Plan," C2 must be modified to reflect these anticipated groundwater elevations. b) The plan of operation does not identify where the phasing of mining (and reclamation) will occur and the timing for each phase. The site must be excavated in an orderly fashion to reduce the area of open mining at any one time. In particular,it is recommended that the northern portion of the site be reclaimed prior to initiation of mining in the new parcel proposed for the expansion. The future location of the main operations area and office, now located in the southeast corner of the northern parcel, must be identified on the (phasing) Excavation Plan, C2. The Excavation Plan must also show the locations of topsoil and backfill soils which will be used in reclamation. The soil volumes of the anticipated phases must be indicated in the application and on the Excavation Plan. This information shall be submitted by March 1, 2014. c) The details for screening berms on the north side of 221 st Street must be provided. The suitability of the berms for site screening must be further demonstrated by the applicant. Details have not been provided on security fencing for the new parcel in the southern portion of the site. d) Sand and gravel mining at the groundwater table increases the vulnerability of groundwater resources at the site to contamination from chemicals and petroleum products. The Groundwater Protection Plan provided in the application discusses the use of oils and asphalt cement. This must be expanded to address the potential presence of all types of P a w E R E U 6 Y NaA f RE]