(1) The plan of operation must include the following site
preparation, mining, and processing plan commitments and information:
(a) an access road and main
permit area boundary markers section, including a statement that the operator
has clearly marked on the ground the access road segments to be improved or
constructed and the main permit area boundary segments that require marking,
and will maintain the markings as required by this rule. Road segments to be
improved or constructed must be marked at every corner and along each segment
so that the markers are easily visible with the naked eye from one to the next
and no more than approximately 300 feet apart. Those portions of the boundary
defined by definite topographic changes, natural barriers, or man-made
structures, or located in active hayland or cropland, need not be marked.
Other boundary segments must be marked at every corner and along each segment
so that the markers are easily
visible with the naked eye from one to the next and no more than approximately
300 feet apart. Acceptable road and boundary markers include brightly colored,
brightly painted, or brightly marked fenceposts, rocks, trees, and other
durable objects. A boundary marker must remain functional until the beginning
of final reclamation of the area next to that marker;
(b) an access road
establishment, use, and reclamation section, including:
(i) a statement that the
operator will appropriately establish, use, and reclaim access roads, and
downsize to the premine condition or totally reclaim these roads by retrieving
and properly handling surfacing materials; backfilling and grading road locations
in a manner that leaves stable surfaces blended into the surrounding topography
and drainageways; and ripping, resoiling, reconditioning, and seeding or
planting the locations with the approved vegetative species, unless the
landowner requests in writing that specific roads or portions thereof remain
open and the department approves the request; and
(ii) a description of the
access roads or portions thereof to be improved or constructed, including their
locations, lengths, widths, drainageway crossings, and surfacing; and of the
roads or portions thereof proposed to remain open, per landowner request, at
the conclusion of opencut operations, including their locations, intended uses,
and final widths. Some or all of this information may be presented on the site
or area map. Improvements include, but are not limited to, blading, widening,
and surfacing. A road or portion thereof may remain open for a reasonable
postmining use and must be left in a condition suitable for that use;
(c) a mining, processing,
and hauling section, including a description of the methods and equipment to be
used to mine and process mine material, and to haul it and the products made
from it. The department may require a description of the anticipated general
mining progression, including where the first stripping and excavation will
occur, the direction mining will progress, and other relevant information. The
anticipated location and timing for the installation of facilities such as a
screen, crusher, asphalt plant, wash plant, batch plant, pug mill, and other
facilities may also be required;
(d) an hours of operation
section, including a description of the proposed hours of operation. The
department may reasonably limit hours to reduce adverse impacts on residential
areas. A complete and accurate log that lists general on-site activities and
the dates and times they occurred must be maintained for an opencut operation
subject to restricted hours. Log information must be presented to the
department upon request;
(e) a water protection and
management section, including:
(i) a statement that the
operator will take appropriate measures to protect on- and off-site surface
water and ground water from deterioration of water quality and quantity that
could be caused by opencut operations; take appropriate measures to prevent,
minimize, or mitigate adverse impacts to on- and off-site surface water and
ground water systems and structures that could be caused by opencut operations;
keep non-mobile equipment above the ordinary high water level of surface water
and ground water; appropriately establish, use, and reclaim opencut-operation-related
hydrologic systems and structures; install or construct fuel storage
containment structures in accordance with the current codes adopted by the
state fire marshal for each single-wall, non-mobile, fuel storage tank placed
and used in and within 500 feet of access roads and 1,000 feet of the main
permit area; routinely inspect and maintain these tanks to prevent leaks and
spills; retrieve and discard spilled fuel and contaminated materials in a
lawful manner; and report to the department a fuel spill that reaches state
waters, as defined in 75-5-103, MCA, or that is greater than 25 gallons. The
department may require on- and off-site surface water and ground water quality
and quantity monitoring before, during, and after opencut operations. When opencut
operations will cause the diversion, capture, or use of water, the operator
shall consult with the regional office of the department of natural resources
and conservation, water resources division, concerning water rights and submit
a summary of that consultation with the plan of operation; and
(ii) a description of the
source, quantity, storage, use, and discharge of water to be used for opencut
operations; special measures to be used to protect on- and off-site surface
water and ground water from deterioration of water quality and quantity;
special measures to be used to prevent, minimize, or mitigate on- and off-site
impacts on surface water and ground water systems and structures; water
management and erosion control plans for surface disturbances that will
intercept a drainageway, significant runoff, or ground water; measures to be
used to protect the water rights of other parties or to replace an adversely
affected water source that had a beneficial use; and fuel storage containment
structures to be installed or constructed;
(f) a mine material
handling section, including:
(i) a statement that the
operator will keep mine material stockpiles out of drainage bottoms and off of
slopes greater than 3:1, and a statement that, at the conclusion of opencut
operations, the operator will, except as provided in (ii) below, remove from
the permit area or bury all excavated or processed
mine material, unless the
landowner requests on the landowner consent form that specific types, grades,
and quantities of mine material remain stockpiled; consolidate mine materials
to remain stockpiled into piles of similar type and grade; and leave the
quantity of soil that was stripped from the unreclaimed area under and around a
mine material stockpile in a shaped and seeded pile within 100 feet of that
stockpile. The operator remains liable for the unreclaimed area under and
around a mine material stockpile until the mine material is removed and the
site reclaimed, or ownership of the stockpile or possession of the permit is
transferred to the landowner or another party; and
(ii) a description of the
types, grades, and quantities of mine material proposed to remain stockpiled,
per landowner request, at the conclusion of opencut operations, and
justifications for the quantities based on current and expected demand for the
materials. The department shall reject a landowner's request that certain mine
materials remain stockpiled if adequate justification is not provided;
(g) a mined-area backfill
section, including:
(i) a statement that the
operator will use only clean fill from any source and on-site-generated asphaltic
pavement as mined-area backfill; dispose of other wastes in compliance with
applicable state laws and rules; bury on-site-generated asphaltic pavement,
coarse clean fill, and other clean fill unsuitable for plant growth under at
least three feet of material suitable for sustaining the postmining vegetation;
and, at the conclusion of opencut operations, remove stockpiled asphaltic
pavement, concrete with protruding metal, and clean fill from the permit area.
Clean fill consists of dirt, sand, fines, gravel, oversize rock, and concrete
with no protruding metal. On-site generated asphaltic pavement must be
disposed of at least 25 feet above the ordinary high water table. The operator
may propose that excess on-site-generated overburden and fines be disposed of
at a site outside of the mined area but within the permit area. Fines consist
of natural or crushed rock that is 1/4 inch or smaller; and
(ii) a description of the
material types, estimated quantities, and fill designs for mined-area backfill,
and of the plan for stockpiling and recycling imported asphaltic pavement and
concrete;
(h) an additional impacts
section, including a description of the methods and materials to be used to
minimize impacts, as necessary, on the residential areas and structures
identified under ARM 17.24.217(1) (e) ; repair or replace man-made structures
affected by opencut operations within the permit area; and address other
opencut operation impacts not addressed in other sections of the plan of
operation; and
(i) an additional
commitments section, including a statement that the operator will inform key
personnel and subcontractors involved in opencut operations of the requirements
of the plan of operation; take proper precautions to prevent wildfires; provide
appropriate protection for cultural resources that could be affected by opencut
operations and promptly notify the state historic preservation office should
such resources be found; and submit an annual progress report to the department.
(2) Upon issuance of the
permit, the operator shall comply with all commitments required by this rule
and with the requirements for the conduct of operations contained in this
rule.