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2. TILLERJune 2011 T I LL E R CO RPOR ATI ON° APPLICATION FOR AMENDMENTS TO CONDITIONAL USE PERMIT FOR MINERAL EXTRACTION ELK RIVER LANDFILL ELK RIVER, MINNESOTA I hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly licensed professional engineer and a duly licensed professional geologist under the laws of the state of Minnesota. Kirsten Pauly, PE/PG Date: 6/23/11 Reg. No: 21842 0 TILLER CORPORATION APPLICATION FOR AMENDMENT TO CONDITIONAL USE PERMIT FOR MINERAL EXTRACTION INTRODUCTION Tiller Corporation (Tiller) is seeking an amendment to an existing Conditional Use Permit (CUP) for Mineral Extraction on parcels of land located in the northern portion of Elk River. The permit was issued in May, 1996. The proposed amendments are limited to Condition #20 of the current CUP. The proposed amendment involves mining the southern boundary of the Elk River Landfill, Inc.'s (ERL) property. Condition #20 of the CUP requires no mining operations be conducted, and trees be left in place, within 200 feet of property lines. The amendment seeks to allow removal of trees and mining within the area that is 200 feet from the south property line. Figure 1 is a general location map of the site. Figure 2 illustrates the existing mining setbacks and proposed revisions to mining setbacks. Figure 3 is a USGS Quad Excerpt. Site operations will be consistent with the current CUP. Operations will consist of stripping the area to be mined, removing the aggregate with excavators or front end loaders, screening and crushing the material and hauling it north or south to Tiller's existing processing area. There is a haul road established between ,_. ERL's property and Tiller's property. II. SITE INFORMATION 1) Legal Description of Property: See attached Exhibit A 2) Name and Address of Operator: Tiller Corporation 7200 Hemlock Lane, Suite 200 PO Box 1480 Maple Grove, MN 55311-6480 (763) 425-4191 Contact: Mike Caron 3) Name and Address of Land Owner: Elk River Landfill, Inc. 22460 Hwy 169 NW Elk River, MN 55330 (763) 441-2464 Contact: Debra Walters ~...m ~ O c~ ~ ,J p p 5 w «_ p N ~' p Elk River Landfill, Inc. d' . -+~~ ~ ~ -Gfl ~ ~ - Existing Landfill p T !_ T "~ ~'7 ~ _ _ __ oPe.F_~ T :' ~ ~ a 1 2 ~ 1 y ~ r,; ~ ~ s ~• ~ y! f 2257H AVE -~° ~ - _, 1 r- (~' ~ 4 ~ 273FA P17E'. y Ey; I er Corporation ~ _` r -` Existin NGmn . .: ~ ~ ~} 9 9 I e ~ ~ : ~ - ,,Y " Operation ", ... ~r ~~ _._.__--- 221 STAVE ' ~ ?29STA ~~iSl AVt~-..».a~-' ...~____~_. .~"'. ~ 1 ~ ~ ~ r { r r 1 r ~ ' i ~ T HA+IE r ~ ~. ~ Y tt J .q .. t ~ ~ } _ RAN~p ~ ~ 8 37-rN q 1 1 ~ ~ `:_r, ~ r a >, ~ ~,~ > y ' ~ ~ ~~ ~ 121 I ~ ,, ,~'``' ~ ,~ 2 e r ~. ;_• ~at~.ta 5 r O ~ ~ t V ~~ I ~O ~ ~ ~ ~. 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'~ _ ~ ~ ! ~ `,; ~ ~ Area of Permit Request ~ ,-'`-~ ~ '~ ` _ r g i -~ ~ _~ - t ~ 1 ~ ~, Gh~v§~'P~~~ J for Amendment ~~ ~ `` ~~ ~~, s- ,~., _ Tiller COrpOf~fiOn ,v ~~ °~~~~'~; ~~?j; ~r. ~ - r~~ l~ _~ -~-`-_ ~ _ -__ ;Mining Operation ' r `` `~_ ,,~~,_ 1._.._~: ;r ` ~-~'`~' _ ~~ - ~ [~ gyp!! a_• ~' ~ 1 r m ~ \ 1, l 1, ~. ~~ _ a 1! ~ r~~ -~~- - ~- - v. Y ._.. - _ ,.. _ ~r y r} ~ o. ~ ~ I ~ `~ ('+~ - - - / / Y 1 ~ ~ ~ ti i _- ~ i ~ ~r ~ °~ j ~ i7~ r _ - t ~ ~ / r r1 i 1 ~ ~,' ' - ,- ~,`~j ~ N - USGS Quad Map Excerpt Elk River and Lake Fremont Quadrangles Figure 3 June 2011 Permit Application 4) Names and addresses of property owners within 350 feet: See attached Exhibit B. 5) Purpose of Proposed Extraction: The purpose of the proposed extraction is to remove an existing deposit of sand and gravel and process it into construction aggregate. This is a high quality aggregate deposit which will be used to supply construction materials to Elk River and surrounding areas. 6) Estimated Time Required to Complete the Proposed Extraction: Mining activity under the current CUP is nearing completion. Mining of the southern most portion of the site will take approximately one year to complete. 7) Transportation Routes: The amendment will have no impact to traffic routes. Material will be hauled or conveyed directly from ERL's property to Tiller's existing operations without accessing any public roadways. Trucks hauling the material will enter public roadways from existing access points. 8) Physical relationship of site with respect to the community: The site is located near the northern boundary of Elk River. It is immediately west of U.S. Highway 169 and approximately 3 miles north of the developed area of Elk River. 9) Site analysis: The property consists of ERL's operations. In the past, mining has been conducted over the entire site (excluding setback areas) in phases. Each phase of mining was followed by the construction of a phase of the landfill. Currently, other than the 200 foot area, only a small portion of the site remains to be excavated in preparation for landfill construction. A haul road has been constructed within the zone to allow access of equipment and transfer of material between ERL's property and Tiller's operations to the north and south. 10)Estimate of Quantity of Material to be Mined: The estimated quantity of material to be removed from the amended mining area is approximately 750,000 cy. 11) Depth of Water Table: The depth of the water table was identified in the EIS prepared for the gravel overlay district within the City of Elk River. The elevation of the water table in this area is approximately 955 - 957 feet above mean sea level. No mining will occur within the water table. 12)Average thickness of overburden: The average thickness of overburden is estimated to range between 0 and 5 feet. The overburden is a sandy loam. 13) Plan of Operation: The plan of operation is to strip the additional mining area. Topsoil and overburden will be used for final cover and/or as cover material at the landfill. The underlying sand and gravel will be removed using excavators or front end loaders. It will be crushed and/or screened at the working face and then conveyed or hauled, on the existing haul road, and stockpiled at Tiller's existing facilities. 14)Explosives: No explosives will be used at the site. 15)Drainage, Erosion Control, Sedimentation, Dust, Access Control and Security: i) Surface water drainage will be directed to a low area within the excavation. Collected surface water infiltrates into the underlying soils and/or evaporates. Surface water drainage will not be directed off site. Sedimentation may occur in temporary holding areas. These low areas can readily be cleaned out by on-site equipment. ii) Since water drainage will be directed internally, erosion will not pose a problem. iii) Dust will be controlled by watering internal haul roads as necessary. Additionally, conveyors may be used within the site minimizing truck traffic on internal haul roads. iv) Access is controlled by locking gates at site entrances to both ERL's operation and Tiller's mining operation. Both sites are fenced. 16)Reclamation Plan Reclamation activities at the site will consist of construction of landfill cells as shown in Elk River Landfill, Inc.'s application dated June 2011. III STANDARDS 1.) Boundary: Extraction operations shall be conducted within the currently permitted areas and within the proposed areas shown on Figure 2. 2.) Setbacks: Site setbacks will comply with the City of Elk River's Mineral Extraction Standards. 3.) Fencing: The entire site is fenced. 4.) Appearance and Screening: All equipment will be kept operational. Within 3 months after termination of mining, or within 3 months after termination of the extraction license, all buildings and structures incidental to extraction operations will be removed. The site will be graded in accordance with the reclamation plan. 5.) Operating Standards: a. Noise: The mining operation will be operated in compliance with State noise standards. b. Hours: Mining and crushing will be conducted between 7:00 a.m. to 7:00 p.m. Monday through Saturday. c. Explosives: There will be no explosives used at this site. d. Fugitive Dust: Fugitive dust will be minimized by watering internal haul roads and/or the use of conveyors. e. Water Pollution: The site will be operated in compliance with all applicable standards of the Minnesota Pollution Control Agency and the Department of Natural Resources. A National Pollution Discharge Elimination Permit (NPDES) has been obtained for the site. Fuel storage is limited to above ground tanks. Secondary containment is provided for all fuel tanks. f. Topsoil: All topsoil will be retained on the site for use at the landfill. g. Slopes: The active mining face will be sloped at approximately 1:1. Reclaimed slopes will be backfilled according to the Reclamation Plan. 6.) Reclamation Standards a. Schedule: Reclamation will be completed as indicated within the Reclamation Plan. b. Slopes: Slopes will be reclaimed in accordance with the Reclamation Plan. c. Cover and Planting: The slopes will be seeded in accordance with the Reclamation Plan. d. Slopes to Water Bodies: There are no water bodies existing on site. e. Water Bodies: There will be no water bodies resulting from this operation.