A. An application for a mine or excavation permit shall be processed in accordance with the same procedures and requirements specified in this Code relating to conditional use permits. If conflicts occur between this chapter and the requirements for a conditional use permit as defined by this Code, this chapter shall prevail. An application for a conditional use permit is also required to be submitted for mining activities in conjunction with an application for a mining permit.
B. An application for a mine or excavation permit shall contain:
1. Application Form: A completed application form.
2. Fees: The required fees.
3. Cover Sheet: The cover sheet shall be twenty two inches by thirty four inches (22" x 34") in size and be utilized to depict general items relevant to the project and plan set. As a minimum, the cover sheet shall contain the following:
a. Title of the project.
b. Sheet index for the plan set.
c. Names, addresses and telephone numbers of the record owner(s), those in possession of vendees under contract for deed, any agent having control of the land, the applicant, land surveyor, geologist, engineer and preparer of the plan set.
d. A location of vicinity map, at a scale of one inch equals two thousand feet (1" = 2,000') or approved other, which depicts the project site relevant to major roadways and other significant surrounding features. A north arrow and scale shall be shown.
4. Site Plan:
a. Generally: A standard twenty two inch by thirty four inch (22" x 34") plan sheet shall be utilized for depicting required site plan data. A grid shall be incorporated onto the site plan to establish a coordinate system for referencing specific items on the plan. The site plan shall be at a scale of one inch equals fifty feet (1" = 50') with a contour interval of one foot (1'). The site plan shall contain a north arrow, graphic scale, and date of preparation.
b. Existing Conditions: As a minimum, the following items shall be depicted on the site plan:
(1) Boundary lines to include bearings, distances, curve data, and total acreage of the site.
(2) Existing zoning classifications for land in and abutting the site.
(3) Location, right-of-way width and names of existing or platted streets or other public ways, parks and other public lands, permanent buildings and structures, easements and corporate lines. The aforementioned items shall be shown for the site and of all land located within three hundred fifty feet (350') of the boundary of the site.
(4) Location and sizes of underground utilities, culverts and other below grade structures and facilities within the site area and to a distance of one hundred feet (100') beyond the site's boundaries.
(5) Watercourses, marshes, wooded areas, rock outcrops, power transmission poles and lines, telephone poles and lines and other related surface items which will affect the mining operation.
(6) Location of exploratory subsurface borings and tests to ascertain subsurface soil, rock and groundwater conditions. This shall be done to augment test results submitted with the application.
(7) 100-year flood elevations, floodway and flood fringe areas.
(8) Wetlands in or within one hundred feet (100') of the site.
(9) Names, addresses and PID numbers of all property owners within three hundred fifty feet (350') of the property if located within platted areas of the City or within five hundred feet (500') of the property if located in nonplatted areas of the City.
(10) A certificate of survey prepared by a professional land surveyor licensed in the State of Minnesota. The certificate shall include the legal description of the property, a signed statement of certification, the registration number of the preparer, and date prepared.
c. Proposed Mining Features:
(1) Location of proposed permanent and temporary structures to be utilized in the operation. This shall include sanitary facilities, offices, trash receptacles, processing plants and living quarters.
(2) Parking areas for employee vehicles and related equipment.
(3) Vehicular circulation plan for the site.
(4) Grading plan which depicts the limits of the material extraction from the site with a minimum of one foot (1') contours.
(5) Intermittent erosion and sedimentation control method.
(6) Location of temporary and permanent fencing and gates.
(7) Drainage swales, culverts or other devices utilized for routing off site flows around the site.
(8) Those areas of the site to be utilized for storage of topsoil and overburden.
(9) Yearly limits or extraction if operation is scheduled to last longer than one year.
5. Closure/Rehabilitation Plan: The closure/rehabilitation plan shall contain the same information as required for the site plan without showing the proposed mining features. The plan shall contain the following additional items:
a. Proposed final contours at one foot (1') intervals. Typical grades shall be noted for all slopes.
b. Those areas of the site to be utilized for storage of topsoil and overburden if staged restoration is planned.
c. Areas of revegetation shall be noted. Areas to be landscaped and type of landscaping shall be noted.
d. Limits of staged restoration if mining operations are scheduled to last longer than one year.
e. All items required by the current City zoning ordinance for the proposed use of the land.
f. The closure/rehabilitation plan shall be updated and submitted as an as built drawing upon completion of site restoration procedures.
6. Cross Sections:
a. Cross sections shall be drawn to depict pre-mining grades, proposed post-mining grades and proposed closure/rehabilitation grades. Cross sections shall be drawn both horizontally and vertically with reference to the site plan grid. Cross sections shall be evenly spaced across the extraction site as depicted on the site plan and have an interval spacing of fifty feet (50') maximum. A minimum of three (3) cross sections each way shall be depicted.
b. All cross sections shall be referenced to the grid system shown on the site plan. The scale for the cross sections shall be one inch equals fifty feet (1" = 50') horizontal and one inch equals five feet (1" = 5') vertical. Cross sections shall be drawn on twenty two inch by thirty four inch (22" x 34") mylar.
c. The cross sections shall be updated and resubmitted upon completion of mining or extraction operations and upon completion of closure/rehabilitation procedures.
7. Traffic Control Plan: A traffic control plan shall be submitted for all operations which will access onto a public roadway. The traffic control plan shall conform substantially to the latest edition of the Minnesota Manual on Uniform Traffic Control Devices for Streets and Highways as published by the Minnesota Department of Transportation. The plan shall be prepared by a professional civil engineer and contain the following:
a. Generally: A standard twenty two inch by thirty four inch (22" x 34") plan sheet shall be utilized to depict the following information:
(1) North arrow.
(2) Scale.
(3) Title block.
(4) Name, address, telephone number, and registration number of person responsible for preparing the plan.
(5) Location map.
b. Plan: The plan portion of the traffic control plan shall depict the following:
(1) Roadway right-of-way width for all affected roadways.
(2) Roadway width and asphalt width of all roadways affected.
(3) Location and type of traffic control signs, signals, markings, barricades, channelizing devices, lighting devices and flagging personnel. Location shall be in reference to roadway intersections, and type shall reference the Mn/MUTCD.
(4) Notes referencing minimum mandatory requirements as dictated by the Mn/MUTCD.
(5) Details for each type of traffic control sign or device utilized.
8. Narrative: A narrative shall be provided to augment the required plan sheets. The narrative shall be prepared, signed and dated by a professional civil engineer. The narrative shall be titled, dated and referenced to the permit application. As a minimum, the following items must be discussed in the narrative:
a. A time schedule for completion of all mining related activities. This shall include the start date, extraction completion date, and final closure/rehabilitation date. A schedule of typical hours of operation during the day shall be discussed, and typical days of the week and typical weeks of the year shall be submitted.
b. A description and quantity of material to be excavated. This shall be documented by a sieve analysis, test hole logs and gradation curve performed by certified and independent testing laboratory. The quantity of material shall be on a per year basis if mining operations are scheduled to last longer than one year.
c. The depth of the water table throughout the area. This shall be documented by boring lots recorded by a certified and independent testing laboratory.
d. The purpose and plan of operation. This shall include a description of the nature of any plants, source of water and means of water disposal.
e. Travel routes to and from the site. This shall be augmented with a legible sketch depicting the same.
f. A plan for drainage control. This shall include an analysis of the impact of the mining operation on the watershed drainage. Drainage calculations utilizing the SCS method of determining flows and pond sizing shall be provided for review.
g. A plan for mitigating water runoff erosion shall be detailed for the site. This shall include erosion control methods to be utilized during the mining operation and during rehabilitation of the site. A material list shall be provided for a typical erosion control strategy. The proposed use of silt fences, straw bales, etc., shall be discussed.
h. A dust control strategy shall be discussed and include the following: type of equipment to be utilized, supply of water or other dust preventative material to be utilized, where equipment is to be stored and location of water supply. These items shall be discussed as they apply to the site and to haul routes and streets.
i. A street maintenance and haul material spill cleanup plan. This shall include equipment such as shovels, brooms, etc., which will be utilized for off site cleanup. The location that vehicles and equipment will be stored. The personnel to be utilized for spill cleanup (i.e., will the same personnel utilized for mining operations be utilized for cleanup operations?). Typical schedules for maintenance of streets and roadways shall be discussed.
j. A plan for storing topsoil and preventing wind erosion of the same.
k. A plan for preventing wind erosion at the site. This shall include standard details depicting erosion control methods such as blankets, dust prevention materials, etc.
l. A discussion of the proposed use of the land following closure/ rehabilitation of the site.
m. A closure/rehabilitation plan which will provide for the orderly and continuing rehabilitation of all disturbed areas. Typical details may be included and the site rehabilitation plan referenced in the narrative. The narrative shall discuss, as a minimum, the following:
(1) If fill material is to be imported to eliminate low areas, a gradation curve shall be provided for the imported soil.
(2) The type and extent of landscaping to be utilized.
(3) The timetable for which site closure/rehabilitation is to occur. This shall include dates for finalizing grading, dates for planting and seeding, and dates for completion of erosion control methods. A generalized schedule shall be provided describing frequency of return visits to the site for continuing maintenance. If mining operations are scheduled to continue longer than one year, a staged restoration plan shall be discussed.
(4) The type of erosion control and sedimentation control to be utilized between final grading and turf establishment.
n. Special conditions which may be specified to the site.
9. Attachments: The following shall be attached to the application for permit:
a. Soil logs. Soil logs shall be prepared by a certified and independent testing agency. The test bores shall be performed in the quantity required by this regulation. Each test bore shall show, as a minimum requirement, the following:
(1) Depth of bore.
(2) Soil stratifications.
(3) Type of soil for each stratification.
(4) High water mark.
(5) Existing water table.
b. Sieve analysis. A sieve analysis shall be performed at each test bore location on the material to be mined. A gradation curve shall then be plotted and the results submitted with the soil logs.
c. A certified abstract listing the names of all landowners owning property within three hundred fifty feet (350') of the boundary of the subject property if located within platted areas of the City or within five hundred feet (500') of the property if located in nonplatted areas of the City.
d. A written right of entry which cannot be terminated for one year after the anticipated closure date to the City for its officers or agents to enter the land for the purpose of determining compliance with all applicable conditions imposed on the operation. The right of entry shall be submitted with the application for permit. One set of keys to locked gates utilized for limiting site access shall be delivered to the City.
e. The plan set shall be submitted to all affected agencies for their review and comments related to the proposed mining activities. The applicant shall be responsible for submitting any other required items to the individual agencies for their review. Prior to a mining permit being issued, comment letters must be received from the following agencies:
(1) Wright County Highway Department.
(2) Minnesota Department of Natural Resources.
(3) Minnesota Pollution Control Agency.
(4) Minnesota Department of Transportation.
(5) United States Army Corps of Engineers.
(6) Other affected agencies.
f. A complete photographic log shall be submitted with the application for permit by the operator. Photographs shall be taken at close enough range to allow for details of key items to be identified. A legend shall be supplied with each photograph describing the view depicted. Each photograph shall contain a point of reference which will not be disturbed during mining operations for later use in site analysis. The photographs shall detail the following:
(1) Existing on site conditions and significant features.
(2) Site perimeter with views depicting adjacent properties.
(3) Downstream drainage facilities which may be affected by mining operations.
(4) Site access and views of the roadway accessed in the immediate vicinity of the access point. (Prior Code § 7-7-5)