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Document ID ca-nt-cmhsr-1995-12-15 Title CONSOLIDATION OF MINE HEALTH AND SAFETY REGULATIONS URL https://www.wscc.nt.ca/sites/default/files/documents/MineRegulations%20NU%20EN.pdf Jurisdiction /ca/nt Subdomain(s) Industrial Water Language en Status completed Analyzed at 2026-03-26 02:49:04.917848+00:00 Relevance Sets mandatory design and safety standards for mining infrastructure operations.

Q Qualitative Requirements (50)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001administrativeoperationalmandatoryTailings Pond Fencing Requirementwastewater, otherWhere the chief inspector is of the opinion that a fence should be erected around all or part of a mine or around tailings or arsenic sludge, the chief inspector shall, whether the mine is in operation or not, order the owner to erect a suitable fence or other means of protection for the purpose within such time as the chief inspector fixes.Where the chief inspector is of the opinion that a fence should be erected around all or part of a mine or around tailings or arsenic sludgehigh
#Q002designoperationalmandatoryUnderground Workplace Drainage Systemwastewater, otherA workplace in an underground mine shall (a) be kept free from accumulation or flow of water which might endanger a person in the area; and (b) have a drainage system to conduct excess water to a pumping system capable of pumping the water to surface for disposal.Applies to all workplaces in an underground mine.high
#Q003operationaloperationalmandatoryPrecautionary Drilling for Water AccumulationotherWhere there is or may be an accumulation of water or any material that may flow when wet, any working approaching such an accumulation must have bore holes drilled in advance and such additional precautionary measures must be taken as will obviate the danger of a sudden breaking through of water or material that may flow when wet.Where working is approaching an accumulation of water or material that may flow when wet.high
#Q004prohibitionoperationalmandatoryApproval for Work Near Bodies of WaterotherNo underground work shall be done within 100 m of the vertical plane expressing the margin of a body of water or water-saturated surface feature until plans and vertical mine sections as described in section 1.119, together with a proposed work procedure, have been approved by the chief inspector.Excludes workings below approved crown pillars or where the vertical distance from the bottom of a body of water exceeds 100 m.high
#Q005administrativeoperationalmandatoryUnderground Dam Construction ApprovalotherNo dam higher than 600 mm or behind which more than 50 cubic metres of water may be impounded shall be constructed underground without the written approval of the chief inspector and then only when constructed in accordance with designs and specifications of a professional engineer.Applies to dams higher than 600 mm or impounding more than 50 cubic metres of water underground.high
#Q006administrativeoperationalmandatoryProcedure for Work Over WaterotherWhere persons are required to work over water which presents a risk of drowning, the manager shall, in consultation with the Committee, develop a procedure for the safety and rescue of persons from the water that is acceptable to the chief inspector.Where persons are required to work over water which presents a risk of drowning.high
#Q007prohibitionoperationalmandatoryProhibition of Unauthorized Water Introductionwastewater, other(1) No person shall introduce water into an ore or waste pass, a loading pocket, hopper, storage bin or a completed large diameter bore hole for any purpose unless the introduction is in accordance with procedures prepared by the manager and discussed with the Committee.high
#Q008operationaloperationalmandatoryPrevention of Water Accumulation in Passeswastewater, otherThe manager shall establish procedures to prevent accumulations of water in raises, ore and waste passes, chutes and other mine workings used for the storage or transfer of ore, waste or fill.high
#Q009designhealthmandatoryPotable Drinking Water Sourcedrinking waterThe manager shall provide a source of potable drinking water complying with the drinking water standards of the Department of Health and Social Services in locations that (a) are reasonably accessible to employees; (b) are kept clean and in a sanitary condition; and (c) are designed to permit the water to be dispensed and drunk in a sanitary manner.high
#Q010prohibitionhealthmandatoryProhibition of Lead Solder in Drinking Water Pipesdrinking waterAfter these regulations come into force, installations of pipes and vessels and changes to existing pipes and vessels that carry water to be used by persons for drinking purposes shall not be constructed using solder containing more than 1% lead.Applies to new installations and changes to existing pipes and vessels carrying drinking water.high
#Q011designhealthmandatoryLunchroom Washing FacilitiesotherWhere five or more persons regularly congregate to eat food, other than in a place where the mining activity of an open pit mine is performed, a lunchroom shall be provided and the lunchroom shall... (b) have or be located near, (i) for persons working on the surface, facilities to wash with cold and hot water and to dry their hands, and (ii) for persons working underground, facilities to wash and dry their handsWhere five or more persons regularly congregate to eat food (except in open pit mine mining activity places).high
#Q012operationalhealthmandatoryRequirements for Personal Washing WaterotherWater that is to be used for personal washing shall not exceed 60 C at any outlet, shall not be mixed directly with steam and there shall be sufficient capacity for all persons on shift.high
#Q013designhealthmandatorySanitary Toilet Facilitiesother(4) A fixed toilet at the surface of a mine shall be (a) of the water flushing type or other sanitary design located in an individual compartment with a door that locks and with walls and floor of a finish or material that can be easily cleaned; (b) fitted with an open-front seat, if the seat is installed after these regulations come into force; (c) provided with a reasonable supply of toilet paper; (d) provided with a clothes hook and lighting where electricity is available; and (e) kept clean and sanitary and any waste products shall be disposed of regularly.Applies to fixed toilets at the surface of a mine.high
#Q014designoperationalmandatoryProtection from Water in Shaft Bottomother(2) Except when a shaft is being sunk or during sump cleaning operations, a barrier or obstruction shall be installed in the shaft to prevent a conveyance from being lowered into water in the shaft bottom. (3) A water level sensing device that is activated by a rising water level in the shaft shall be installed below the barrier or obstruction.Except when a shaft is being sunk or during sump cleaning operations.high
#Q015reportingreportingmandatoryDangerous Water Occurrence Reportingother(2) Within 24 hours after a dangerous occurrence, the manager shall give an oral report to an inspector and to the Committee co-chairpersons. (3) Within 72 hours after a dangerous occurrence or a reportable incident, the manager shall send a written report to the chief inspector and to the Committee co-chairpersons.Applies to dangerous occurrences, which includes an inrush of water, or a cracking, seeping or failure of a dam or bulkhead (as defined in 16.01).high
#Q016designoperationalmandatoryMine Design Hydrological DescriptionotherThe mine design shall... (d) describe the hydrological features that may affect the working of the mine;Requirement for the surface or underground mine design maintained by the owner.high
#Q017designoperationalmandatoryMine Design Inrush PrecautionsotherThe mine design shall... (j) include specific precautions to be taken concerning parts of the mine where bodies of water, overburden, tailings, gas, low oxygen or water soaked material may inrush or flood the workings;Requirement for the surface or underground mine design maintained by the owner.high
#Q018prohibitionoperationalmandatoryBulkhead Construction ApprovalotherNo bulkhead that may retain water or unconsolidated materials shall be constructed underground without the written approval of the chief inspector and then only when constructed in accordance with designs and specifications of a professional engineer except for standard backfill bulkheads conforming to a design previously approved in writing by the chief inspector.Applies to bulkheads retaining water or unconsolidated materials.high
#Q019operationalhealthmandatoryHygienic Washing FacilitiesotherThe manager shall provide and maintain hygienic facilities appropriate to the hazardous substance present in the worksite, including clean hot and cold water, soap and individual towels and, where necessary, shall provide on-site facilities to launder contaminated clothing.high
#Q020monitoringoperationalmandatoryShaft Sump Water pH TestingotherAt least once in each 12 month period an inspection shall be made of (e) the water in the shaft sump to determine the pH value;Manager must ensure inspection is performed annually.high
#Q021operationalhealthmandatoryPotable Water Supply in Refuge Stationsdrinking waterThe manager shall ensure (a) that a refuge station is equipped with (i) a supply of potable water,Applies to refuge stations in underground mines.high
#Q022designhealthmandatoryEmergency Eye Wash FacilitiesotherWhere there is potential for injury by eye contact, a manager shall... (b) provide, at or near the exposure site, the appropriate hygiene facilities including portable eye wash stations or eye wash fountains and maintained in a hygienic and working condition.Where there is potential for injury by eye contact.high
#Q023monitoringoperationalmandatoryTailings Pond Examination Procedureswastewater, otherThe manager shall prepare procedures for the examination of tailings ponds including (a) the condition of the face of the embankment; (b) signs of seepage; (c) sloughing; (d) the condition of beach; (e) the width of top of embankment; and (f) the depth of water.Applies to the examination of tailings ponds at a mine site.high
#Q024designoperationalmandatoryPlastic Pipe Restrictions in Mine ShaftsotherPlastic pipe and fittings shall... (c) not be used for the main supply or discharge of compressed air or water in mine shafts;Applies to piping systems in mine shafts.high
#Q025designhealthmandatoryWater Supply at Battery Charging StationsotherThe manager shall ensure that a room or area referred to in subsection (1) [battery charging stations]... (f) has a sufficient supply of fresh water for flushing and neutralizing spilled or splashed electrolyte;Required for storage battery rooms or areas.high
#Q026designhealthmandatoryEmergency Deluge ShowersotherWhere there is potential for injury by skin contact with toxic substances or by absorption through the skin, a manager shall... (b) provide employees with the appropriate hygiene facilities including wash basins, showers, change rooms, quick-acting deluge showers and first aid supplies for burns, allergies and rashes.Where potential for injury by skin contact or absorption exists.high
#Q027reportingoperationalmandatoryBoundary Pillar Water Hazard AssessmentotherThe report referred to in section 1.09 shall contain... (b) an assessment of... (ii) any hazard associated with water or material that, when wet, may flow across the party boundary;Before any work may take place in a boundary pillar.high
#Q028operationalhealthmandatoryDevelopment Heading Water Spray RequirementotherThe manager shall... (c) provide every development heading, drift and raise with a water spray that must discharge within an effective distance of the face being advanced;During development and advancing operations.high
#Q029designreportingmandatorySurface Plan Water Feature IdentificationotherThe plans required to be kept by section 1.116 shall include (a) a surface plan showing the claims, licences or leases on which mining is being conducted, and lakes, watercourses, naturally unstable ground such as peat bogs or sloughs...high
#Q030designreportingmandatoryVertical Section Water Body MappingotherThe plans required to be kept by section 1.116 shall include... (c) vertical mine sections at suitable intervals and azimuths showing... the bottom and surface of any known body of water or watercourse;high
#Q031administrativeoperationalmandatoryApproval Prerequisite for Impoundment Workwastewater, otherThe manager shall ensure that no work is commenced on a waste dump, dam or impoundment until the manager has received the written approval of the design by the chief inspector and possesses the applicable permits and licences.high
#Q032designoperationalmandatoryProfessional Engineer Design for Water Course DumpsotherA dump shall be designed by a professional engineer where required by the chief inspector or where it has one or more of the following characteristics:... (e) where waste material is dumped or placed in a water course having a potential peak flow greater than 1 cubic m per second, once in every 200 years,Where waste material is placed in a water course with peak flow > 1 cubic m/s.high
#Q033operationalhealthmandatoryPotable Water Provision for Heat Stressdrinking waterWhen persons are exposed to conditions of heat stress... potable water to drink shall be made available, kept cool and kept at or near the worksite.When persons are exposed to conditions of heat stress as defined by ACGIH.high
#Q034designhealthmandatoryMinimum Wash Basin RatiootherThe toilet facilities shall... be equipped with... (b) one wash basin, or equivalent facility, provided with hot and cold running water for every 15 employees or additional fraction thereof;Required for surface toilet facilities.high
#Q035monitoringoperationalmandatoryMonthly Shaft Sump Water Clearance InspectionotherAt least once in each month an inspection shall be made of... (e) the shaft sump to ensure that the tail rope loop, guide and rubbing rope connections and weights are clear of water and spillage.Recurring monthly requirement.high
#Q036prohibitionoperationalmandatoryOld Workings Approach ApprovalotherNo work shall be done within 100 m of the old or abandoned workings until the chief inspector has approved the procedure prepared under section 1.119.Where workings approach or are conducted within 100 m of old or abandoned workings.high
#Q037designoperationalmandatoryHaulage Road Drainage BreaksotherThe manager shall ensure that surface haulage roads are designed, constructed and maintained to provide... a shoulder barrier... incorporating breaks that do not exceed the width of the blade of the equipment constructing and maintaining the breaks, to allow for drainage and snow clearance.Applies to shoulder barriers on surface haulage roads.high
#Q038administrativeoperationalmandatoryImpoundment and Dam Design Applicationwastewater, otherThe manager shall make an application to the chief inspector, complete with the supporting documents required by the chief inspector, for the written approval of the design of a proposed waste dump, dam or impoundment, and copies of the complete application shall be sent to regulatory agencies specified by the chief inspector.For a proposed waste dump, dam or impoundment.high
#Q039monitoringoperationalmandatoryWaste Dump Surveillance ProgramotherThe manager shall implement and maintain a surveillance and instrumentation program recommended in a waste dump design approved by the chief inspector.As recommended in an approved waste dump design.high
#Q040operationaloperationalmandatoryExposed Slope Stability on AbandonmentotherPrior to the abandonment of any waste dump or impoundment, the owner shall assure the stability of the exposed slopes to the satisfaction of the chief inspector.Prior to the abandonment of any waste dump or impoundment.high
#Q041prohibitionoperationalmandatoryRestricted Material Pulling Near WaterotherWhere for any reason a raise, ore or waste pass, chute or other mine working containing ore, waste or fill may also contain an accumulation of water, no employee shall pull or be permitted by the manager to pull material from that place until such time as the manager has established a safe procedure for doing that work.Where working containing material may also contain an accumulation of water.high
#Q042designoperationalmandatoryShaft Water Level Alarm AudibilityotherThe water level sensing device installed pursuant to subsection (3) shall be equipped with an alarm that gives an audible warning signal in the hoist room, on the lowest active working level, and at the loading pocket if it is below the lowest active working level.Where a water level sensing device is installed below the shaft barrier.high
#Q043operationaloperationalmandatorySaturated Material Removal Procedureswastewater, otherWhere any ore or waste pass is found to contain water or saturated material that will flow, the manager shall develop procedures for the safe removal of such water or saturated material and shall give a copy of the procedures to the Committee.Where an ore or waste pass is found to contain water or saturated material that will flowhigh
#Q044operationaloperationalmandatoryPiping System Lockout and Testing Procedurewastewater, otherThe manager shall ensure that (a) a procedure is established for locking out and testing a piping system before the system is worked on;Applies to piping systems with internal lining or containing corrosive, flammable, toxic, or hazardous pressure/temperature substanceshigh
#Q045designoperationalmandatorySurface Mine Climate and Precipitation DescriptionotherThe mine design shall... (f) describe, for surface mines, expected climate conditions, the presence of permafrost, if any, and average monthly precipitation;Requirement for surface mine design documentationhigh
#Q046prohibitionoperationalmandatoryLiquid Transfer Air Pressure ProhibitionotherNo person shall transfer liquids or solids from one location or container to another location or container by the application of air under pressure except where equipment specifically designed for that purpose is used.except where equipment specifically designed for that purpose is usedhigh
#Q047operationaloperationalmandatoryPropane Tank Leak PreventionotherA propane storage tank shall be so located that a leak of its contents does not enter any mine openings to underground.high
#Q048designoperationalmandatoryFuel Storage Tank DikingotherEvery fuel storage tank shall be... (c) be surrounded by a dike or curb capable of containing 110% of its storage capacity.high
#Q049designoperationalmandatoryUnderground Garage Spill Containmentwastewater, otherUnderground garages... are equipped with means for containing spills of petroleum products that include suitable use of fireproof receptacles into which the spilled petroleum products shall be deposited for removal from the mine without delay;high
#Q050operationaloperationalmandatoryDrilling Site Face WashingotherNo person shall commence drilling at a site unless the exposed face is (a) subject to section 14.51, washed with water;subject to section 14.51high

P Quantitative Requirements (67)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#P001chemicalhealthmandatoryOxygen in general body of airotherrequirement>= 19 % by volumemechanical ventilation system shall be provided and the system shall be maintained and used to provide oxygen in the general body of air of not less than 19% by volumeIn an underground minehigh
#P002chemicalhealthmandatoryLead in solderdrinking waterMAC<= 1 %installations of pipes and vessels and changes to existing pipes and vessels that carry water to be used by persons for drinking purposes shall not be constructed using solder containing more than 1% leadafter these regulations come into forcehigh
#P003designoperationalmandatoryUnderground dam heightotherrequirement<= 600 mmNo dam higher than 600 mm or behind which more than 50 cubic metres of water may be impounded shall be constructed underground without the written approval of the chief inspectorhigh
#P004designoperationalmandatoryImpounded water volumeotherrequirement<= 50 cubic metresNo dam higher than 600 mm or behind which more than 50 cubic metres of water may be impounded shall be constructed underground without the written approval of the chief inspectorhigh
#P005designoperationalmandatoryDistance from body of waterotherrequirement>= 100 mNo underground work shall be done within 100 m of the vertical plane expressing the margin of a body of water or water-saturated surface featureuntil plans and vertical mine sections... have been approved by the chief inspectorhigh
#P006chemicalhealthmandatoryFlammable gas limitotherrequirement<= 1.25 % by volumeno air containing more than 1.25% by volume of any flammable gas passes through or over the fanauxiliary fan in an underground minehigh
#P007physicalhealthmandatoryPersonal washing water temperatureotherrequirement<= 60 CWater that is to be used for personal washing shall not exceed 60 C at any outletshall not be mixed directly with steamhigh
#P008designoperationalmandatoryWater course peak flow for waste placementotherrequirement> 1 cubic m per secondwaste material is dumped or placed in a water course having a potential peak flow greater than 1 cubic m per second, once in every 200 yearsrequires design by professional engineerhigh
#P009designhealthmandatoryMinimum distance from old or abandoned workingsotherrequirement>= 100 mNo workings in a mine shall approach or be conducted within 100 m of old workings or abandoned workingsuntil manager has caused an examination to determine conditionhigh
#P010chemicalhealthmandatoryFree silica or lead in abrasive blasting materialotherrequirement< 1 %No person shall use abrasive blasting material containing 1% or more free silica or leadhigh
#P011designoperationalmandatoryBoundary pillar widthotherrequirement>= 30 mA pillar of not less than 30 m shall be maintained on both sides of a party boundary between adjoining underground mining properties.high
#P012designhealthmandatoryFire resistance rating for egress structureotherrequirement>= 2 hoursA surface structure covering a means of egress shall be constructed so as to reduce the danger from fire to a minimum and any material used shall have a minimum of two hours' fire resistance rating.high
#P013chemicalhealthmandatoryOxygen in surface buildingsotherrequirement>= 19 % by volumeIn surface buildings at a mine, the owner shall equip the buildings with a ventilation system that shall be maintained and used to provide oxygen in the atmosphere of not less than 19% by volume.high
#P014designhealthmandatoryHandrail heightotherrequirement910 to 1070 mmEvery walkway and every working platform more than 1.5 m above the ground with a handrail not less than 910 mm nor more than 1.07 m above the floor.high
#P015designhealthmandatoryHandrail load capacityotherrequirement>= 0.9 kNThe handrail shall be capable of withstanding a load applied in any direction to the top rail of at least 0.9 kN.high
#P016designhealthmandatoryLadder platform intervalotherrequirement<= 7 mLadderway inclined at more than 70 degrees from the horizontal shall be provided with solid platforms at intervals not greater than 7 m.high
#P017designoperationalmandatoryHoisting rope safety factor (drum)otherrequirement>= 8.5 dimensionlessThe factor of safety of a hoist rope installed on a drum hoist shall not be less than 8.5 at the point where the rope is attached to the conveyance.high
#P018operationalhealthmandatoryMinimum age for underground workotherrequirement>= 18 yearsNo person under the age of 18 years shall be employed underground or at the working face of any open cut workings, pit or quarry.high
#P019chemicalhealthmandatoryCarbon monoxide in diesel exhaustotherrequirement< 1500 ppmthe undiluted and unscrubbed exhaust gases from diesel powered equipment is less than 1,500 ppm by volume of carbon monoxide.high
#P020physicalhealthmandatoryNoise level requiring actionotherrequirement> 85 dBAIn any area where the noise level may exceed 85 dBA, the manager shall ensure that effective procedures are provided to protect employees.high
#P021operationalhealthmandatoryAuxiliary ventilation advance limitotherrequirement<= 10 mworksite shall be ventilated by an auxiliary ventilation system for any advance in excess of 10 m from the main ventilation airflowIn an underground mine for development, exploration or production worksitehigh
#P022designhealthmandatoryToeboard heightotherrequirement>= 100 mmtoeboards that extend from the floor to a height of not less than 100 mmFor walkways and working platforms more than 1.5 m above the groundhigh
#P023designhealthmandatoryHaulage safety station spacingotherrequirement<= 30 msafety stations shall be provided at intervals not exceeding 30 mWhere pedestrian traffic is permitted in a haulageway and the walkway is less than 2 m in widthhigh
#P024operationalhealthmandatorySurface work shift limitotherrequirement<= 12 hoursThe manager shall not permit the employment of a person on surface of a mine for a period longer than 12 hours in a dayMinimum of 12 hours of rest between shifts requiredhigh
#P025operationalhealthmandatoryUnderground work shift limitotherrequirement<= 8 hoursThe manager shall not permit the employment of a person underground at a mine for a period longer than eight hours in a dayMinimum of 12 hours rest between shifts requiredhigh
#P026operationalhealthmandatoryDiesel ventilation air quantityotherrequirement>= 0.06 cubic m per second per kilowattThe ventilation quantity shall be at least 0.06 cubic m per second for each kilowatt of the diesel powered equipment operating at the work siteIn underground workings where diesel powered equipment is operatinghigh
#P027chemicalhealthmandatoryCarbon monoxide atmospheric limit (diesel equipment)otherrequirement<= 25 ppmthe concentration of carbon monoxide exceeds 25ppm... the manager shall ensure that immediate action is taken to reduce those concentrationsAt the operator's position and where persons work or pass in the vicinity of diesel equipmenthigh
#P028chemicalhealthmandatoryNitrogen dioxide atmospheric limit (diesel equipment)otherrequirement<= 3 ppmthe concentration of... nitrogen dioxides exceed 3ppm... the manager shall ensure that immediate action is taken to reduce those concentrationsAt the operator's position and where persons work or pass in the vicinity of diesel equipmenthigh
#P029chemicalhealthmandatoryRespirable combustible dust limit (diesel equipment)otherrequirement<= 1.5 mg per m3the concentration of... respirable combustible dust exceeds 1.5 mg per m3... the manager shall ensure that immediate action is taken to reduce those concentrationsAt the operator's position and where persons work or pass in the vicinity of diesel equipmenthigh
#P030designoperationalmandatoryMaximum distance to refuge stationotherrequirement<= 1 kmThe manager shall ensure that a refuge station is located within a 1 km. Distance from an active workplace in an underground mine.Except during shaft sinking operations for initial developmenthigh
#P031operationalhealthmandatoryFall arrest system thresholdotherrequirement> 3 mSubject to subsection (5), where a person is exposed to the hazard of falling more than 3 m, a fall arresting device shall be provided to the person and he or she shall use the device.Excludes shaft sinking with equivalent protectionhigh
#P032operationalhealthmandatoryBlasting re-entry wait timeotherrequirement>= 10 minutesNo person shall return to a work place affected by a blasting operation where delay action detonators are used and a shot is heard, until 10 minutes have elapsed from the time the blast is initiatedWhere delay action detonators are used and a shot is heardhigh
#P033operationaloperationalmandatoryParking brake system test gradeotherrequirement15 %The parking brake system test shall consist of loading the equipment to the manufacturer's specified maximum gross weight and parking the equipment on a 15% down gradeForward and reverse direction with power train disengagedhigh
#P034operationalreportingmandatoryVentilation measurement intervalotherrequirement<= 3 monthsensure that measurements are made of ventilation quantities... at intervals not exceeding three months and when there is any major change to the ventilation layout.Main intakes, returns, fan drifts, haulageways and major splitshigh
#P035operationaloperationalmandatoryHazard correction periodotherrequirement<= 30 dayscorrecting the health and safety hazards noted in the inspection report, within 30 days after the day on which the inspection was carried outOr by such later date as may be agreed to by the Committeehigh
#P036designhealthmandatoryMinimum lunchroom sizeotherrequirement>= 6 square mNo lunchroom referred to in subsection (1) shall have a minimum size of less than 6 square m.Where five or more persons regularly congregate to eathigh
#P037operationalhealthmandatoryMinimum air flow for tight-fitting face-piecesotherrequirement>= 105 l per minutevolume of air supplied shall be sufficient for respiration... and shall not be less than 105 l per minute of air to tight fitting face-piecesDuring abrasive blasting operationshigh
#P038designhealthmandatoryBreakthrough notification distanceotherrequirement<= 8 mthe plans shall clearly indicate places where openings are or will be within 8 m of a breakthroughShift boss must ensure mining crews are informedhigh
#P039operationalhealthmandatoryAlternate hoisting means test intervalotherrequirement6 monthsThe manager shall ensure that the alternate means for hoisting persons to the surface are thoroughly tested every six months.Where egress is solely by means of shafts not equipped with laddershigh
#P040designhealthmandatoryMaximum stairway riseotherrequirement<= 3.6 mA stairway shall not have the rise or vertical distance between landings of a flight exceed 3.6 mPer flight of stairshigh
#P041designhealthmandatoryMinimum platform widthotherrequirement>= 600 mmthe platform shall be not less than 600 mm in width by 1.2 m in lengthWhere platforms are used in conjunction with a ladderwayhigh
#P042designhealthmandatoryMinimum platform lengthotherrequirement>= 1.2 mthe platform shall be not less than 600 mm in width by 1.2 m in lengthWhere platforms are used in conjunction with a ladderwayhigh
#P043designhealthmandatoryCatch platform projectionotherrequirement>= 2.4 mextend outward from the structure for at least 2.4 mConstruction in parts of the mine with falling material hazardshigh
#P044operationalhealthmandatoryAir flow for loose-fitting helmetsotherrequirement>= 170 l per minutenot less than 170 l per minute of air to loose-fitting helmets, hoods and suitsAbrasive blasting operationshigh
#P045operationalhealthmandatoryAlone worker visit intervalotherrequirement<= 2 hoursvisited or contacted at the work location by a person appointed for that purpose, at intervals of two hours or more frequentlyPerson working in a mine not in frequent communication with othershigh
#P046physicalhealthmandatoryMale toilet ratiootherrequirement1 per 20 male employeesone toilet and one urinal for every 20 male employees or additional fraction thereof on shifthigh
#P047physicalhealthmandatoryFemale toilet ratiootherrequirement1 per 9 female employeesone toilet for every nine female employees or additional fraction thereof on shifthigh
#P048physicalhealthmandatoryWash basin ratiootherrequirement1 per 15 employeesone wash basin, or equivalent facility... for every 15 employees or additional fraction thereofhigh
#P049designoperationalmandatorySinking bucket minimum heightotherrequirement>= 1.07 mThe bucket shall not be less than 1.07 m in heightDuring shaft sinking operationshigh
#P050operationaloperationalmandatoryLowering bucket stop distanceotherrequirement5 to 10 mbe stopped at a distance of not less than 5 m and not more than 10 m above the bottom of the shaftBucket being lowered to shaft bottomhigh
#P051operationalhealthmandatoryBlasting re-entry stop distanceotherrequirement>= 15 mbe stopped not less than 15 m above the blasting set or bulkheadFirst lowering of bucket to shaft bottom after blasthigh
#P052designhealthmandatoryHoist safety circuit maximum voltageotherrequirement<= 250 voltsThe safety circuit operating voltage shall not exceed 250 volts.high
#P053operationalhealthmandatorySkip speed limit for personsotherrequirement<= 5 m/sprevent the skip or bucket from travelling at a speed in excess of 5 m/sWhen skip or bucket is carrying personshigh
#P054designreportingmandatoryMagazine sign heightotherrequirement>= 150 mmmarked 'EXPLOSIVES' in letters at least 150 mm in heightMagazines, day benches, shift boxeshigh
#P055operationalhealthmandatoryUnderground bootleg drill distanceotherrequirement>= 150 mmwithin 150 mm of any part of a bootlegUnderground mine drillinghigh
#P056operationalhealthmandatorySurface bootleg drill distanceotherrequirement>= 1 mwithin 1m of any part of a bootlegSurface mine drillinghigh
#P057operationalhealthmandatoryUnderground misfire drill distanceotherrequirement>= 2 mwithin 2m of a misfired hole, a cutoff hole or a hole containing explosivesUnderground mine drillinghigh
#P058operationalhealthmandatorySurface misfire drill distanceotherrequirement>= 5 mwithin 5m of a misfired hole, a cutoff hole, or a hole containing explosivesSurface mine drillinghigh
#P059physicalhealthmandatoryEmergency illumination levelotherrequirement>= 50 luxprovide illumination of at least 50 lux to allow employees to initiate emergency shutdownEmergency lighting system on surfacehigh
#P060physicalhealthmandatoryCap lamp peak illuminanceotherrequirement>= 1500 luxat least 1500 lux at 1.2 m from the light sourceFor the duration of the shifthigh
#P061physicalhealthmandatoryUncontrolled fall of ground reportable displacementotherrequirement> 50 tdisplacement of more than 50 t of materialuncontrolled fall of ground causing physical damagehigh
#P062designhealthmandatoryMaximum fall arrest free fall distanceotherrequirement<= 1.22 mlifeline shall be anchored so that a person cannot fall, free of arrest, for more than 1.22 mhigh
#P063designhealthmandatoryMinimum floor load for cageotherrequirement>= 2000 kg/m2minimum design floor load for a conveyance carrying persons shall not be less than 2,000 kg/m2high
#P064designoperationalmandatoryMinimum rope safety factor at head sheaveotherrequirement>= 5.0 dimensionlessshall not be less than 5.0 at the point where the rope leaves the head sheaveconveyance carrying maximum permissible load and at its lowest point of normal travelhigh
#P065operationalhealthmandatoryShift box explosives capacityotherrequirement<= 300 kgshift box... may at any time contain more than 300kg of explosiveshigh
#P066operationalhealthmandatoryShift box detonator capacityotherrequirement<= 50 countshift container box may at any time contain more than... 50 detonatorshigh
#P067designoperationalmandatoryFree fall test deceleration rangeotherrequirement10 to 30 m/s/sthe cage or skip is decelerated within 10 m/s/s and 30 m/s/shigh

D Definitions (70)

Req ID Category Name Context Confidence
#D001Actmeans the Mine Health and Safety Act;high
#D002authorized personmeans a qualified person appointed or designated, in writing, by the manager to perform specified duties;high
#D003bailmeans the supporting structure for a shaft conveyance whereby the conveyance is connected, through suspension gear, to the hoisting rope;high
#D004conveyancemeans any structure raised or lowered by a mine hoist in a shaft and includes a bucket, a counterweight, a piece of equipment, a single or multi-deck cage, a skip, a skip and cage combination and a single or multi-deck work platform;high
#D005headframemeans a structure at the top of a mine shaft which carries the sheaves for the hoisting ropes;high
#D006mine hoisting plantmeans a mine hoist for an underground mine and includes the prime mover, transmission equipment, headframe, rock dump system, sheave wheel assembly, shaft ropes, shaft, conveyances, shaft sinking equipment, shaft furnishings, rock loading system, hoist controls, counterweight, signalling and communications equipment and any other equipment used in connection with a hoist;high
#D007professional engineermeans a member or licensee qualified to practise professional engineering in accordance with the Engineering, Geological and Geophysical Professions Acthigh
#D008qualified personmeans a person who is (a) qualified because of his or her knowledge, training and experience to design, organize, supervise and perform the duties for which he or she is appointed, (b) familiar with the provisions of this Act, the regulations, and the code that apply to the duties for which he or she is appointed, and (c) capable of identifying any potential or actual danger to health or safety in the workplace.high
#D009safety catchmeans a safety appliance or fitting which transfers the weight of the cage onto the shaft guides if the hoisting rope breaks;high
#D010sendincludes deliver;high
#D011shaft(a) means an excavation of limited perimeter compared with its depth in which persons and material, or both, are transported by means of a mine hoisting plant, and (b) includes a winze;high
#D012shaft furnishingmeans any installation within the shaft, other than casing and lining, which is required to support the shaft or services within the shaft;high
#D013shaft liningmeans the continuous or non-continuous timber, concrete, brick or steel structure, or weld mesh, fixed around the shaft to support the walls;high
#D014shaft obstructionmeans any protrusion into a shaft compartment in which hoisting may be conducted;high
#D015shaft ropemeans any rope used with a shaft hoist installation including a hoisting rope, a balance rope, a guide rope and a rub rope;high
#D016suitablemeans suitable in the opinion of the chief inspector;high
#D017suspension gearmeans all components necessary to effect a secure attachment between the hoisting rope and the conveyance;high
#D018work platformmeans a platform attached through suspension gear to the hoisting rope and used by persons performing work in a mine shaft.high
#D019rock mass characteristicsmeans a numerical index or rating that is derived from a semi-quantitative evaluation of rock discontinuities and other inherent qualities used to determine the ground stability in a specific area of an excavation and that classifies the ground based on this evaluation;high
#D020rockburstmeans a mining-induced seismic event that causes injury to persons or damage to underground workings or equipment;high
#D021seismic eventmeans a transient earth motion that is caused by a sudden release of potential or stored strain energy in the rock;high
#D022tendon supportmeans rockbolts, rebars, friction anchors, cable bolts or similar equipment used to support ground;high
#D023tension crackmeans a crack created by tension forces or the opening of joints by such forces;high
#D024uncontrolled fall of ground(a) includes a fall of ground made up of rock, fill or other material, and (b) does not include (i) a fall occurring as a result of (A) scaling operations, or (B) blasting operations, where the fall occurred within the blasting heading, stope or at the face of a surface mine before re-entry after the blast, or (ii) a predicted fall documented in writing to an inspector before the occurrence;high
#D025working groundis a condition where material such as rock, when under stress, may crack, creep or shift depending on the stiffness characteristics of the rock mass and the magnitude of the resulting strain, given by symptoms such as cracking, popping and grinding noises.high
#D026management co-chairpersonmeans the co-chairperson chosen for the Committee by the manager;high
#D027worker co-chairpersonmeans the co-chairperson chosen by the worker members of the Committee from among the worker members elected to the Committee.high
#D028Panelmeans the Panel of Examiners established under section 7.02.high
#D029confined spacemeans a tank, process vessel, underground vault, tunnel or other enclosure that is not designed or intended for human occupancy and that a person would only enter if there were work to be done.high
#D030key process personmeans a person who is in control of a continuous operating process such as a mill or concentrator;high
#D031proceduremeans the procedure the manager prepares pursuant to subsection 8.32(1).high
#D032hazard analysismeans the process of identifying, documenting and eliminating or minimizing potential hazards involved in performing the steps of an operation;high
#D033immediately dangerous to life or healthmeans a situation where the release or accumulation of toxic, flammable or inert air contaminants or a change in the normal air concentration of oxygen may result in (a) a fatal injury to a person who does not have respiratory protection, (b) irreversible or serious harm to the health of a person, or (c) the incapacitation of a person;high
#D034special taskmeans a task that is not routinely performed and that may involve an unusual health or safety hazard.high
#D035ionizing radiationmeans any atomic or sub-atomic particle or electro-magnetic wave having sufficient energy to produce ionization;high
#D036National Dose Registrymeans the National Dose Registry maintained by the Occupational Radiation Hazards Division of the Department of Health and Welfare Canada;high
#D037permissible dosemeans the (a) maximum permissible dose of ionizing radiation as determined in accordance with Schedule 6 (Maximum Permissible Doses of Ionizing Radiation), or (b) maximum permissible exposure to radon daughters as determined in accordance with Schedule 7 (Maximum Permissible Exposures to Radon Daughters);high
#D038Radiation Exposure Control Code of Practicemeans a procedure to ensure that the concentration of radon daughters in a mine is kept as low as reasonably achievable;high
#D039radon daughtersmeans the short-lived radioactive decay products of radon-222 and includes thoron daughters;high
#D040remmeans a dose of ionizing radiation equal to 0.01 of a Sievert;high
#D041Sievertmeans a unit of measurement equal to 1 J/kg;high
#D042working levelmeans a concentration of any combination of radon daughters in one litre of air that will release 1.3 x 10 5 mega-electron volts of alpha particle energy during their radioactive decay to lead-210;high
#D043working level monthmeans the exposure resulting from inhalation of air containing one working level of radon daughters for 170 hours.high
#D044blastermeans a person who is certified and authorized under these regulations to conduct blasting operations at a mine;high
#D045blastholemeans a hole drilled for the purpose of loading and blasting explosives;high
#D046blasting agentincludes any ammonia nitrate-fuel oil mixture, emulsion, slurry or water-gel or other relatively insensitive, ammonium nitrate explosive;high
#D047blasting certificatemeans a blasting certificate issued under section 7.31;high
#D048blasting machinemeans a portable device used to initiate a blast by electricity;high
#D049bootlegmeans the remnant bottom or socket of a blasthole that did not properly break when the blast was initiated;high
#D050day benchmeans an underground storage location used to store an amount of explosives that does not exceed the lesser of 300 kg or the amount required for operations in a 24 hour period;high
#D051detonatormeans a device used to detonate an explosive;high
#D052explosiveincludes gunpowder, propellant powder, dynamite, detonating cord, blasting agents and detonators or any other material that is made, manufactured or used to produce an explosion or detonation;high
#D053leg wiresmeans the wires permanently attached to an electric detonator;high
#D054magazinemeans a building, place or structure on the surface or underground in respect of which a permit to store explosives of detonators has been issued.high
#D055misfiremeans any portion of a blasthole that contains explosives after blasting initiation;high
#D056primermeans an explosive containing a detonator;high
#D057shift boxmeans a box sufficient in size to hold enough explosive or detonators for the blasting operations conducted during a shift except that no shift box or shift container box may at any time contain more than 300kg of explosives or 50 detonators.high
#D058exploration activitymeans any underground exploration work, any disturbance of the surface by mechanical means or any diamond drilling for the purpose of finding a mineral, but does not include work at a producing mine or exploration work involving the exclusive use of hand tools;high
#D059isolated campmeans a camp that is normally reached by air.high
#D060dangerous occurrencemeans (a) an incident involving the hoist, sheaves, hoisting rope, conveyance or shaft timbering or structure, (b) an inrush of water, (c) a cracking, seeping or failure of a dam or bulkhead, (d) an outbreak of fire, (e) a premature or unexpected explosion or ignition, (f) the occurrence of flammable, noxious or toxic gas in mine workings or at an exploration site, (g) unexpected and non-controlled extensive subsidence or caving of mine workings, (h) an explosion or outbreak of fire in any way related to the operation of an air compressor, air receiver, compressed air line or steam boiler, (i) a breakdown in the main ventilation system, (j) loss of control or major damage to any mobile equipment, (k) an uncontrolled fall of ground causing physical damage or the displacement of more than 50 t of material, and (l) any unusual occurrence not listed in paragraphs (a) to (k);high
#D061reportable incidentis an incident involving serious injury or death;high
#D062serious injuryincludes (a) a fracture of the skull, spine, pelvis, femur, humerus, fibula, tibia, radius or ulna, (b) an amputation of a major part of a hand or foot, (c) the permanent loss of the sight of an eye, (d) any serious internal haemorrhage, (e) any burn that is caused by electricity and requires medical attention, (f) any third degree burn, (g) any injury caused directly or indirectly by explosives, (h) any asphyxiation or poisoning that causes a partial or total loss of physical control, and (i) any other injury likely to endanger life or cause permanent impairment.high
#D063steady state noisemeans noise in which variations of peak pressure levels occur in one second or less;high
#D064impact noisemeans noise in which variations of peak pressure levels occur at intervals greater than one second apart.high
#D065IDLHmeans a situation where the release or accumulation of toxic, flammable or inert air contaminants or a change in the normal air concentration of oxygen may result in (a) a fatal injury to a person who does not have respiratory protection, (b) irreversible or serious harm to the health of a person, or (c) the incapacitation of a person;high
#D066WLmeans a concentration of any combination of radon daughters in one litre of air that will release 1.3 x 10 5 mega-electron volts of alpha particle energy during their radioactive decay to lead-210;high
#D067WLMmeans the exposure resulting from inhalation of air containing one working level of radon daughters for 170 hours.high
#D068TLVmeans threshold limit value;high
#D069primed explosivemeans an explosive containing a detonator;high
#D070shift containermeans a box sufficient in size to hold enough explosive or detonators for the blasting operations conducted during a shift except that no shift box or shift container box may at any time contain more than 300kg of explosives or 50 detonators.high