New Nuclear at Darlington Environmental Assessment

WELCOME TO Ontario Power Generation’sNew Nuclear at Darlington Community Information SessionEnvironmental AssessmentFall 2008

2 Contents

Tonight’s presentation will cover:

The Project

• Roles, Responsibilities, Milestones

Environmental Assessment

• Project Assumptions & Layouts

• Project – Environment Interactions

2 Contents

Environmental Assessment (continued)

• Cumulative Effects

• Significance Criteria

Feedback

• What We Are Hearing

• Input on Our Current Work

3Describe the Project:

Phases3 The Project - Roles and Responsibilities

The Project To construct and operate a new

nuclear power plant at the existing Darlington site to meet the base-load electricity requirements of Ontario

Ontario Power Generation (OPG) Is responsible for the federal

approvals - an environmental assessment (EA) & site preparation licence

The EA and licence application are for Up to four nuclear units

Up to 4,800 MW of electrical capacity

The EA must be completed before the site preparation licence can be issued

A federally appointed joint review panel will review the EA and licence application

OPG will be the operator for the new nuclear units at the Darlington site

4Describe the Project:

Phases4 The Project - Roles and Responsibilities

Infrastructure Ontario Leading a competitive process to select a nuclear reactor vendor to

construct two units and potentially additional units

Three internationally recognized vendors participating: Areva NP - US Evolutionary Pressurized Reactor (1600 MW)

Atomic Energy of Canada Limited – ACR1000 Advanced CANDU Reactor (1200 MW)

Westinghouse Electric Company – AP1000 nuclear power plant (1000 MW)

End of 2008: Deadline for Phase 2 Submission

2009: Preferred Vendor Selected

The Vendor will:

Be responsible for construction, including hiring, purchasing, etc.

Turn the reactors over to OPG when they are ready to begin operations

5 Upcoming Community Information Sessions

OPG asked to begin federal approvals process for new nuclear

Initial Site Preparation Licence – submitted Sept. 2006

Project Description – submitted April 2007

Canadian Environmental Assessment Agency/Canadian Nuclear Safety Commission

Determined that a Joint Review Panel will be established to review the documents

Released for public review on September 4, 2008

Draft Environmental Impact Statement (EIS) Guidelines

Draft Panel Agreement and Terms of Reference

Comments due November 19, 2008

OPG

Submits EIS and Site Preparation Licence Application, once guidelines are finalized

Joint Review Panel

Undertakes Public/Technical Review; Holds Public Hearing

Issues Report to Federal Minister of the Environment

5 The Project – Roles and Responsibilities

6 Darlington New Build Project Description6 Major/Indicative Milestones

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7

Elements in the Environmental Assessment

OPG has completed

baseline data collection for most of the areas of study

↓

We are currently looking at project –

environment interactions

↓

All of this will be documented in the

environmental assessment

8 The Project – Principle Buildings & Structures

9 The Project - Conceptual Plant Layouts Conceptual layouts

developed to provide for principle buildings and structures

All provide for: Site access

Switchyard Expansion

Parking, Construction Facilities

Soil Stockpiles, Lake fill, Land fill

Used Fuel & Nuclear Waste Storage

Layout 1: Four reactors and once through lake water cooling

10 Conceptual Site Layouts Layout 2 has mechanical draft

cooling towers and two reactor units

Mechanical draft cooling towers Main heat transfer to atmosphere

Structure minimally visible off-site

Very large land area required

↓

Layout 3 has natural draft cooling towers and two reactor units

Natural draft cooling towers

Main heat transfer to atmosphere

Structure highly visible off-site

Large land area required

11 Lake Fill

Potential Lake Fill

Lake Ontario shoreline along Darlington property From intake channel to Easterly limit of Darlington

site

EA Bounding Assumptions Approximately 100 metres into the lake on west side Approximately 450 metres on east side Approximately three million cubic metres, covering 40

hectares

Provides Enhanced site security Additional lands for construction lay down Storage for excavated rock and soil Potential wildlife near shore habitat post construction

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Project DescriptionBounding EA Timelines/Temporal Boundaries

The dates shown are for EA study purposes. Actual start and in service dates have yet to be determined

13 Site Preparation

Timeline:

Approximately two years

Workforce

Up to 400 (100 on-site; 300 off-site)

Activities Include:

Mobilization

Vegetation Removal/Earthmoving

Soil/Rock Management

• up to 12 million cubic metres

Infrastructure installation

14 Construction

Timeline:

Approximately six to eight years for two units

Workforce:

Up to 3,500 peak workforce for two units

On-site parking

Off-site parking may be used within five km of Darlington site, bus shuttles to transport workers

Activities Include:

Installation

Reactor block, turbine generator, cooling system

Construction Waste Management

Marine/Road/Rail Considerations

Concrete Supply

15 Operations

Workforce & Procurement:

Up to 1,400 per year for each set of two units

Mid-Life Replacement or Refurbishment - peak workforce approximately 2,000

Procurement patterns similar to current Darlington

Activities Include:

Reactor Commissioning

Safe plant operations

Waste/Used Fuel transfer

Mid-life major component replacement and/or refurbishment

Timeline:

Approximately 60 operating years for each set of reactors (2016-2100)

16 Project – Environment Interactions Matrix

Component

Potential Interaction

Site Preparation

Construction Operation Decom-missioning

Aboriginal Interests *Aquatic Biota, Surface Water * * *Atmosphere * * *Geology, Hydrogeology, Seismicity

* * * *

Human Health * * *Hydrology & Surface Water * * *Land Use and Transportation * *Physical & Cultural Heritage *Radiation and Radioactivity * *Socio-economic Conditions * * * *Terrestrial * *

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Potential Environment Effects Atmospheric Environment

Atmospheric Environment

Air quality; noise

Examples of Potential Effects

During site preparation & construction phases:

• Off-site dust and vehicle exhaust emission

• Increased noise from traffic and equipment

Dust and noise levels return to low levels during plant operation

Localized fogging and icing from mechanical draft cooling towers (if used)

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Potential Mitigation Measures Atmospheric Environment

Potential Mitigation Measures

Dust management plan for site preparation and construction phases, assumed to include:

Watering for dust control

Paved versus unpaved roads

Different aggregate grades for road construction

Slope stabilization (e.g. hydro seeding)

Noise

Ensure construction equipment is well maintained

Proactive communication with community

Vehicle operating restrictions

Off-site dust / vehicle exhaust/ noise effects

• Routine monitoring and notification

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Potential Environmental Effects Socio-Economic Conditions

Socio-economic environment:

Community character, economic studies, recreational users, municipal finance, etcetera

Examples of Potential Effects:

Nuisance effects to adjacent neighbours

Disruption of some on-site recreational facilities

Increased demand for municipal services and housing

Creation of direct, indirect and induced employment opportunities

Increased municipal revenue

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Potential Mitigation Measures Socio-Economic Conditions

Potential Mitigation Measures

Monitor neighbouring properties for nuisance effects

Replace or offset loss of recreational uses on and off the Darlington site

Support construction and trades recruitment and training initiatives

Enhanced apprenticeship programs

21 Projects to Consider in Cumulative Effects Projects to Consider in Cumulative Effects Cumulative Effects Assessment21

22 Cumulative Effects Assessment

Projects

407 East Extension

Region of Durham Energy from Waste Facility

Development within Clarington Energy Park

Oshawa Ethanol plant

St. Marys Alternative Fuels Project

Pickering Airport

Refurbishment of existing Darlington Nuclear Generating Station

Future 401 widening

Studies and Plans Durham Region Water and

Wastewater Master Servicing Strategy

23 Significance of Residual Environmental Effects

Criteria typically include:

Magnitude of effect

Geographical extent of the effect

Timing, duration, and frequency of the effect

Degree to which effects are reversible or

mitigable

Ecological and social/cultural context

Probability of occurrence

Existing regulatory and industry standards are used as points of reference.

Professional expertise and judgment are also applied.

24 Feedback We’ve Received

Community Information Sessions

600 visitors to date

Most Important Environmental Features are:

Drinking and lake water quality

Atmospheric environment, air quality

Human health considerations

Nuclear emergency infrastructure and preparedness

Transportation system safety and road traffic volumes & safety

25 Feedback We’ve Received

Community Kiosk: 500 visitors

Benefits the project will bring to the area

• How to secure employment

Importance/Value of the Kiosk

Timing of Key Events

• When will construction, operations start?

• When will decisions be made?

Community Events/Displays 5,000 visitors

50% of the comments:

• Nature of the EA studies, Strong project support

50% beyond OPG’s responsibility:

• Vendor selection, Ontario’s electricity system, etcetera

26 Upcoming Community Information Sessions

We’re here to answer your questions.

We want your input on: Mitigation measures to address

potential effects of the project

Project to consider for the cumulative effects assessment

Criteria to assess significance of effects

Comment and evaluation forms are available – please take a minute to fill them out before you leave!

26 Thank you for participating!

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www.opg.com/newbuild

1-866-487-6006

Contact Us27 Contact Us