Projet minier aurifre Canadian Malartic

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CANADIAN MALARTIC GOLD MINE PROJECT
Impacts, mitigation measures and proposed
follow-up measures
Public Presentation No. 3June 17,
2008 Translated from French presentation (with
original French notes)
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Plan for the evening

• Words of welcome
• Overview of the impact study process
• Overview and status of the project
• Results of the environmental evaluation
• Physical components
• Biological components
• Human environment components
• Conclusions about the companys work
• Question period

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OVERVIEW OF THE IMPACT STUDY PROCESS
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Four main steps characterize the preparation of
the impact study

• Characterization of the receiving environment
• Presentation of February 2008
• Definition and description of the study project
  
• Presentation of April 2008
• Analysis of the impacts and the proposed
  mitigation measures
• Elaboration of monitoring and follow-up programs

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OVERVIEW AND STATUS OF THE PROJECT
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Project was developed based on input from many
sources

• - Preliminary technical study outlined in winter
  of 2008
• First draft of project
• Many environmental inputs were considered
• - Since March 2008
• Weekly meetings between OSISKO and GENIVAR with
  the aim of optimizing the project to
• Take into account local sensitivities
• And also the technical constraints
• - Other recommendations of the impact study
• Will be integrated into subsequent studies
  (feasibility study, sustainable development plan,
  construction specifications, etc.)

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• Mining installations
• Green zone

Videos showing the mining installations and green
zone were played during the public presentation.
These can be seen on Osiskos website at
Community gtgt Animations Maps http//osisko.orga
nism.ca/en/community/animations-maps.html
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PRELIMINARY RESULTS OF THE ENVIRONMENTAL
EVALUATION
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Studied components

• Physical environment
• Streamflow regime and other surface waters
• Groundwater and hydrogeology
• Soils
• Noise
• Vibrations
• Air quality

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Stream flow regime and other surface waters
Malartic
Rivière
Route 117
Ruisseau Raymond
Ruisseau Raymond
Embranchement Mainville
Piché
Rivière
Ruisseau
7ème Rang
Ch. Lac-Mourier
Mainville
Lac Fournière
6ème Rang
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Groundwater
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NOISE

• During the construction phase
• Noise coming from the work site falling below the
  norms
• Simulated 36 dBA (Leq 12 h) during the day and
  38 dBA (Leq 1h) at night
• Norm 55 dBA (Leq 12 h) during the day and 45 dBA
  (Leq 1 h) at night
• Measurements taken to obtain this result
• Plant is 2.5 km from residential sectors
• Main entrance to work site placed at East
  Malartic
• During the mining phase
• Many measures integrated into the project
• Landscaped ridge 15 m high alongside Rue de la
  Paix
• Other ridges (4 m) along the main circulation
  routes
• A quieter model of truck (227 tonnes)
• Smaller drill rigs for the first pit benches

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Results of the noise contribution - first years -
57-59 dBA (Leq 1h)
Acceptable limit 40 dBA (Leq 1h) Annual follow-up
recommended
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Vibrations and impacts due to dynamiting

• Possibility of flying rock chips
• Mainly during excavation of the first pit benches
• Main preventative measure blast mats that
  retain rock chips
• Risk of damage to structures
• Very limited and below the MDDEPs criteria
• Authorized speed 12.7 mm/s (damage would start
  at 19-20 mm/s)
• Reduced explosive charges in the northern part of
  the pit
• - Cannot be avoided altogether other measures
• Blast tests before operations start
• Quality assurance procedure to be put into place
• Electronic detonators and modelling software
• Monitoring during operations and building
  inspections before operations start

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Network of proposed seismographs
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Sensitivity of people to vibrations

• Depends on various factors
• - Weather/climate
• - Air overpressures
• - Human activities
• - Other human factors

Painful

• Additional mitigation measures
• One blast per day (3.5 sec)
• In late morning (1130) or afternoon (330)
• Keep a sufficient reserve in the ore pile to
  avoid blasting when the weather conditions are
  unfavourable

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Air quality

• Dust during work
• Standard management measures will continue to be
  employed
• Particles emitted during operations
• Measures incorporated into the design to reduce
  the impact
• Selected exhaust systems for machinery have best
  performance
• Water trucks (two large and one small) on site at
  all times
• Watering of drill holes in the north part of the
  open pit
• Enclosed conveyor belts in open-air structures
• Cover on stockpile of crushed ore
• Closed building for crushing complex
• Continous monitoring recommended

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Annual concentrations of particles coming from
the mine - first years -
Acceptable limit 70 ug/m3
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Studied components

• Biological environment
• Vegetation and wetlands
• Fauna (wildlife)
• - Land mammals
• - Aquatic fauna
• - Avifauna (waterfowl, birds of prey and other
  birds)
• - Herpetofauna (amphibians and reptiles)

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Vegetation and wetlands

• During the construction phase
• Loss related to stripping of the vegetation cover
  and the infilling of some wetlands results in
  loss of surface area
• Compensation measures for wetlands
• (1 for 1 compensation no-loss principle)
• Minimize the areas to devegetate
• During the mining phase
• Low to negligible impact because the
  rehabilitation work (replanting) will be done
  continuously as the cells become filled
• During the closure phase
• Positive impact as the vegetation planted during
  the rehabilitation work takes hold will
  represent an improvement over the current
  situtation

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Fauna (wildlife)

• During the construction phase
• Potential loss of habitats
• Disturbances related to noise and traffic in the
  work zones
• During the mining phase
• Little impact the effects will mainly be felt
  during the construction phase
• During the closure phase
• Positive impact due to the increase in
  forested/wooded surface area and the reduction of
  noise and traffic in the region

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Studied components

• Human environment
• Traffic
• Local and regional economy
• Quality of life
• Land use, tourism and recreation
• Heritage and archaeology
• Landscape

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Changes to traffic conditions
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Local and regional economy

• Positive impact on the Malartic and Abitibi
  economy

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Local and regional economy (contd)

• - Creation of new private and public services in
  Malartic
• - Increase in property values
• - Improvement in the hireability of the
  workforce
• Bonus measure
• Policy aimed at maximizing the purchase of goods
  and services and hiring workers in Malartic and
  the Abitibi region

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Local and regional economy (contd)

• Impact related to the end of mining operations
• Mitigation measures
• - Fonds Essor Malartic Osisko (FEMO)
• - Other potential mine sites under study by
  Osisko
• Impact related to the increase in the cost of
  housing
• Mitigation measures
• - Town of Malartic project for the construction
  of a low-rent housing unit (supported by Osisko)
• - Osisko agrees to maintain the rents at
  affordable levels for 3 years

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Quality of life

• Impact of the perception of risks to the health
  and psychological well-being of the population
• Mitigation measures
• - Publicly available information on the health
  risks
• - Toll-free information line
• - Interventions by a monitoring committee
• Impact on the social cohesion of Malartic
  possible conflicts related to the arrival of new
  residents and workers, but also adds new stimulus
  to the community
• Mitigation measures
• Integration efforts from the entire Malartic
  community
• Maximization of the local economic benefits
• - Fair hiring policies (equal opportunity)

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Land use, tourism and recreation

• Impact on facilities and equipment due to the
  construction of new buildings
• Added value for the Abitibi-Témiscamingue
  mineralogical museum due to its location next to
  an operating mine
• Relocation of a 4-km segment of a skidoo trail
• No impact on the quality of fishing in Lac
  Fournière (no changes to the water quality)

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Heritage and archaeology

• Impact will be related to the loss of
  institutional buildings that serve as historical
  reminders of the development of the Malartic
  community (daycare facility, Saint-Martin and
  Renaud schools)
• Mitigation measures
• Inventory elements of historical interest related
  to these buildings and produce a detailed
  photographic history
• Conserve and improve the water tower
• (the question of the Canadian Malartic headframe
  is still under study)
• No impact on the zones of moderate archaeological
  potential, which will be avoided during project
  development

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Before View from Highway 117
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After View from Highway 117
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Before View from Avenue St-Louis - Rue La Salle
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After View from Avenue St-Louis - Rue La Salle
Monument, sculpture or interpretation panel
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Before View from Chemin du Lac-Mourier
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After View from Chemin du Lac-Mourier
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Before View from Range Road 7 East
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After View from Range Road 7 East
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Before View from Rue de la Paix - Ave DHochelaga
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After View from Rue de la Paix - Ave DHochelaga
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• COMMITMENTS FROM OSISKO MINING CORPORATION
• Minimize our impacts
• Striving towards a carbon neutral goal (zero
  carbon footprint )
• Implement monitoring programs for vibrations,
  dust and the noise level during operations
• Put into place a monitoring/follow-up committee
• Maximize the economic and job benefits for the
  Malartic community
• Keep the Malartic population and other related
  parties informed

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What happens next

• Impact study report will be finalized
• Writing to be finished summer 2008
• Submit dossier to MDDEP September 2008
• Admissibility study by the MDDEP
• Questions and comments fall 2008
• Dossier made public end of 2008
• BAPE activities
• Period of public information beginning 2009
• Public hearing if required, winter or spring
  2009
• Decree authorizing the project
• Final study by authorities spring/summer 2009
• Decision of the Conseil des Ministres summer
  2009

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• Future work
• Closure of the East Malartic site
• Arrival of maintenance trucks
• The first homes moved
• Vibration tests
• Dismantling of the existing plant
• Start of construction institutional buildings

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END OF PRESENTATIONEnvironmental Impact
Studyof the Canadian Malartic Gold Mine
Projectof Osisko Mining Corporation
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