We Have Started to Develop the Chapel Rock to Pincher Creek Area Transmission Development and the Intertie Restoration Project and We Want Your Input

WELCOME ALTALINK OPEN HOUSE CHAPEL ROCK TO PINCHER CREEK AREA TRANSMISSION DEVELOPMENT

We have started to develop the Chapel Rock to Pincher Creek Area Transmission Development and the Intertie Restoration Project and we want your input. Who is AltaLink?

Our transmission lines transport the power you use every day.

Headquartered in Calgary, with offices in Edmonton, Red Deer and Lethbridge, AltaLink is Alberta’s largest electricity transmission provider. AltaLink is partnering with its customers to provide innovative solutions to meet the province’s demand for reliable and affordable energy. With a commitment to community and environment, AltaLink is ensuring the transmission system will support Albertans’ quality of life for years to come. Learn more at www.altalink.ca Project details

The Chapel Rock to Pincher Creek Area Transmission Development includes:

A new 240 kV transmission line, between 41 and 46 km long, connecting a new proposed substation to be called the Chapel Rock Substation, to either the existing Goose Lake Substation or Castle Rock Ridge Substation, both located north of Pincher Creek.

The new proposed Chapel Rock Substation will connect the new transmission line with the existing 1201L transmission line, which is the Alberta/British Columbia intertie. Progress we’ve made

Since we began consulting with stakeholders on this " proposed project in September 2018, we've receivedTod Creek ! valuable feedback that has helped in our project planning. North Fork UV22 ! )")" 514L Chapel

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i v 1201L e With the input we’ve received from stakeholders, along r )")" Hudson with information gathered though ongoing field studies andBay Lake VU510 Oldman River Lundbreck Reservoir Bellevue ! CASTLE ! 3A ROCK engineering, we have refined the transmission line routes UVand Cowley RIDGE ! Burmis! 205S " Hillcrest )" UV3 " Mines st 170L substation sites proposed for this project, added new sne Crow Pincher " r Ri ve Lee Lake RUSSELL Station 632S ! potential options and removed othersTod Creek from! consideration. ") 412L ")" iver le R UV507 GOOSE st Pincher a Creek LAKE NorthC Fork 103S UV22 ! UV6 )")" 514L Chapel " ! Rock LEGENDO ! l )" d )" LEGENDm Tod Creek ! a " n ) ProposedR Substation Existing Transmission i 1201L v e Line )" Proposedr Substation North Fork Upgrade Substation Target Area UV22 ! No Longer Under )" " Existing Substation 514L )" Consideration )")" Hudson Bay Lake Proposed 240kVVU510 ! Chapel Oldman River Hamlet or Locality Lundbreck TransmissionReservoir Line Route Rock O !Bellevue ! CASTLE Highway ! l Proposed 138kV/240kVROCK d 3A )" UV Cowley RIDGE )" m ! Burmis! Double Circuit 205S " Urban Area a Hillcrest )" n "Transmission Line Route UV3 t 170L Water Body R Mines es Crow sn Proposed 170L and 412LPincher i r 1201L v Ri ve Lee Lake RUSSELL Station Other AltaLink Project e Replacement632S with 240kV! r 412L Transmission") Line Route")" Proposed Alberta/British iver le R UV507 GOOSE st Pincher Columbia Intertie a Proposed Re-use of LAKE C Creek )" Existing Transmission 103S Restoration Project UV6 Series Capacitor Location )")" Line Route Hudson ! Route No Longer Under Bay Lake LEGENDVU510 Consideration Oldman River )" Lundbreck ReservoirProposed Substation Existing Transmission CASTLE Line Bellevue ! Proposed Substation ! 3A )" ROCK UV CowleyUpgradeRIDGE Substation Target Area ! No Longer Under Burmis! " Existing205S Substation " Hillcrest )" Consideration " Proposed 240kV UV3 170L ! Hamlet or Locality Mines est Transmission Line Route Crow sn Pincher r Highway Ri ve Lee Lake RUSSELL ProposedStation 138kV/240kV! 632S 412LDouble Circuit Urban Area )"" Transmission Line")" Route Water Body iver le R UV507 Proposed 170LGOOSE and 412L st Pincher Other AltaLink Project a CreekReplacementLAKE with 240kV C Transmission Line103S Route Proposed Alberta/British UV6 Columbia Intertie Proposed Re-use of )" Existing Transmission Restoration Project ! Line Route Series Capacitor Location Route No Longer Under LEGEND Consideration )" Proposed Substation Existing Transmission Line )" Proposed Substation Upgrade Substation Target Area No Longer Under " Existing Substation Consideration Proposed 240kV ! Hamlet or Locality Transmission Line Route Highway Proposed 138kV/240kV Double Circuit Urban Area Transmission Line Route Water Body Proposed 170L and 412L Replacement with 240kV Other AltaLink Project Transmission Line Route Proposed Alberta/British Columbia Intertie Proposed Re-use of )" Existing Transmission Restoration Project Line Route Series Capacitor Location Route No Longer Under Consideration Updated technical solutions

NORTH TECHNICAL SOUTH TECHNICAL SOLUTION SOLUTION (NEW) Shown in purple on the map Shown in orange on the map

Refined routes and sites based on what was The 170L/412L replacement route proposed in the first round of consultation

Substation A new Chapel Rock Substation to be built at A new Chapel Rock Substation to be work one of two proposed sites: built at one proposed substation site: • NW-31-8-2-W5M (designation point • SW-8-8-3-W5M (designation F70 on the map) point A140 on the map) • NE-8-9-2-W5M (designation point D90 on the map) This technical solution only connects at the Goose Lake Substation This technical solution can connect at either Modifications will be required at the the Goose Lake or Castle Rock Ridge substation Russell, Goose Lake and Pincher Creek In any case, modifications are required at the substations Goose Lake Substation If the line connects to Castle Rock Ridge modifications will also be required at this substation

New Route will generally travel west and north Route will travel west from the Goose transmission from either the Goose Lake or Castle Rock Lake Substation to the new Chapel Rock line Ridge substation to the new Chapel Rock Substation Substation One proposed route option primarily Several route options are proposed for this using a portion of the existing 170L and technical solution, only one of which will 412L right-of-way be built

Structure types Primarily monopole A mix of H-frame and monopole structures to address different features H-frame structures may be used in some and terrain along the route select areas Updated technical solutions

Tod Creek !

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A140 )"!)" Hudson Bay Lake UV510 Oldman River Lundbreck Reservoir !Bellevue ! CASTLE ! 3A ROCK UV Cowley RIDGE ! Burmis! 205S Hillcrest )" UV3 170L Mines est Crow sn Pincher r Ri ve Lee Lake RUSSELL Station 632S ! )" 412L )" River tle VU507 Pincher GOOSE as Creek LAKE C 103S UV6

! LEGENDLEGEND

Point Designation Proposed Transmission Existing Transmission Line Other AltaLink Project ! Point DesignationLine Route - North ! Hamlet or Locality Proposed Substation Technical Solution Hamlet or Locality Proposed Alberta/ British Columbia Proposed)" SubstationProposed SubstationProposed Transmission HighwayHighway Intertie Restoration Upgrade Line Route - South Project Series Technical Solution Urban Area Capacitor Location )" Proposed Substation Urban Area Upgrade Water Body Water Body Proposed Transmission Line Route - North Other AltaLink Project Technical Solution Proposed Alberta/British Proposed Transmission )" Columbia Intertie Line Route - South Restoration Project Series Technical Solution Capacitor Location Existing Transmission Line New proposed Chapel Rock Substation

The Chapel Rock Substation will look similar to the one pictured here.

North Technical Solution • approximately 195 x 210 metres in size • proposed site: NW-31-8-2-W5M located at the end of Chapel Rock Road (designation point F70 on the map) • proposed site: NE-8-9-2-W5M located within the Wildcat Creek Valley (designation point D90 on the map)

South Technical Solution

• approximately 200 x 220 metres in size • proposed site: SW-8-8-3-W5M (designation point A140 on the map)

500 kV structure requirements One new 500 kV structure is required at two of the proposed substation sites: • D90 (North Technical Solution) • A140 (South Technical Solution) ! D90 )")"

! E60 Chapel 1201L Rock ! )")"! F70

New proposed UV22 ! D90 )")"

Chapel Rock Substation! E60 Chapel 1201L Rock ! )")"! F70 Hudson ! E25 North Technical Solution Bay Lake UV22 LEGENDLEGEND ! D90 )")" ! Point Designation ! Hamlet or Locality )" Proposed Substation Highway ! Proposed 240kV Water Body Transmission Line Route E60 Other AltaLink Project Chapel Route No Longer Under 1201L Proposed Alberta/British Rock ! Consideration )"! Columbia Intertie )" Hudson Substation Target! E25 Area )" Restoration Project F70 Bay Lake No Long Under Series Capacitor Location Consideration )" Existing Transmission)"! A140 LEGENDUV22 Line ! Point Designation ! Hamlet or Locality 1201L )" Proposed Substation Highway Proposed 240kV ! Water Body Transmission Line Route Blairmore Other AltaLink Project Route No Longer Under Proposed Alberta/British 170L Consideration Columbia Intertie Substation Target Area )" Restoration ProjectBellevue No Long Under )" Series Capacitor Location! Consideration )"! A140 Hudson ! E25 Existing Transmission Hillcrest UV3 Bay Lake Mines C Line 1201L r ! o w

s n ! e LEGEND s t Blairmore R ! Point Designation ! Hamlet or Locality iv e r South)" Proposed Technical Substation SolutionHighway 170L Proposed 240kV Water Body Bellevue! Transmission Line Route LEGEND Other AltaLink Project LEGEND Route No Longer Under Hillcrest UV3 ! Point Designation ! Hamlet or Locality )" Proposed Alberta/BritishMines C Consideration r )"! A140 Columbia Intertie ! o )" Proposed Substation Highway " w Substation Target Area ) Restoration Project s n Proposed 138kV/240kV River or Stream No Long Under Series Capacitor Location e 1201L s Double Circuit Consideration t Other AltaLink Project R Transmission Line Route iv Proposed Alberta/British Existing Transmission e Proposed 170L and 412L r Columbia Intertie ! Line Replacement with 240kV )" Restoration Project Transmission Line Route Blairmore Series Capacitor Location Existing Transmission

170L LEGEND Line ! Point Designation ! Hamlet or Locality Bellevue! )" Proposed Substation Highway Proposed 138kV/240kV River or Stream Double Circuit Hillcrest UV3 Other AltaLink Project Mines C Transmission Line Route r o Proposed Alberta/British ! Proposed 170L and 412L w Columbia Intertie s Replacement with 240kV n )" Restoration Project e Transmission Line Route s Series Capacitor Location t Existing Transmission R Line iv e r

LEGEND ! Point Designation ! Hamlet or Locality )" Proposed Substation Highway Proposed 138kV/240kV River or Stream Double Circuit Other AltaLink Project Transmission Line Route Proposed Alberta/British Proposed 170L and 412L Columbia Intertie Replacement with 240kV )" Restoration Project Transmission Line Route Series Capacitor Location Existing Transmission Line Work at existing substations

Depending on the technical solution that is chosen, modifications are required at existing substations in the area to accommodate the project.

North Technical Solution: Castle Rock Ridge Substation • Substation would be expanded approximately 13 metres to the east and 24 metres to the south to accommodate equipment needed to connect the transmission line • Will only occur if the proposed transmission line connects to this substation

South Technical Solution • Russell Substation: will be expanded by approximately 80 metres by 130 metres to the south and west • Pincher Creek Substation: modifications required to existing equipment by not fence line expansion is required

North and South Technical Solutions: Goose Lake Substation • Substation will be expanded by approximately 85 metres to the south and 45 metres to the east to accommodate new equipment that will help regulate the electric system • Will occur regardless of which technical solution is chosen Structure types

SINGLE CIRCUIT MONOPOLE Structure height 18-40 m

Structure width 1-1.5 m at the base

When on private property: 22 m Right-of-way width When in road allowance: 10 m from the edge of the road allowance

North - primarily used Technical solution South - in select areas

SINGLE CIRCUIT H-FRAME Structure height 16-36 m

Structure width 6 m at the base

When on private property: 35-85 m (typically Right-of-way width 40 m unless otherwise noted) When in road allowance: 20 m

North - in select areas Technical solution South - in select areas

DOUBLE CIRCUIT H-FRAME Structure height 25-38 m

Structure width 6 m at the base

When on private property: 30 m Right-of-way width When in road allowance: 14 m

Technical solution South - in select areas

500 kV Structure height 30-40 m

11x11 m up to 18x18 m at Structure width the base

Right-of-way width N/A

North - D90 substation site Technical solution South - A140 substation site

Please note, all dimensions are approximate and subject to change with further engineering. We are proposing to use either self-supporting or guyed structures at angle locations along the transmission line route. What do you think?

Brown finish steel structures

To minimize visual impacts related to the transmission line, the use of brown finish steel for the structures may be an option

Brown finish steel structures will slowly weather over time and result in a dark brown, rust-like appearance

This is different than a typical galvanized steel structure which is largely visually unaffected over time and generally maintains the original appearance Project schedule & next steps

Notify and consult with stakeholders: Fall 2018 to Summer 2019

File application with the AUC: Fall 2019

Start construction if project is approved: 2021 (earliest)

Anticipated construction completion: 2023 (earliest)

Although we attempt to follow the anticipated project schedule, it is subject to change. We will continue to provide you with updated schedule information if required as the project progresses. Intertie Restoration Project

The proposed Intertie Restoration Project is located in the areas of Rocky View County, the Municipal District of Ranchland, the Municipal District of Pincher Creek and the Municipality of Crowsnest Pass.

The project involves: • adding new equipment along the existing 1201L transmission line, including a series capacitor (which looks similar to a substation) • adding one new 500 kV structure (only required at the three of the four proposed sites - not the Coleman area site) • adding new equipment and expanding the fenceline at the Bennett Substation, which is located southwest of Langdon Intertie Restoration Project

O ld m a High n ok R ³ Livingstone Bro Rock Todd Cr ave iv Range eeGr e Wildland k r Wildland Provincial Todd Park Provincial Window Park ! Creek Mountain Lake MUNICIPAL W DISTRICT OF il BRITISH dca RANCHLAND NO. 66 t re COLUMBIA ")")C ek k Chapel

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Provincial ALBERTA d l Park o G Ross 1201L 786L ") Lake " VU22 "! Hazell!! !! !Sentinel! ! Coleman ") 3 ") Island Crowsnest VU Hudson Lake Lake ! Bay Lake MUNICIPALITY OF Blairmore Bellevue CROWSNEST PASS ! ! Frank VU3A Castle Redfern Lake ! ! Burmis Wildland Lake Hillcrest 170L Provincial r Mines ive Park Cr ows nes t R Lee Lake Corbin ! MUNICIPAL tle R ive r DISTRICT Cas OF PINCHER CREEK NO. 9 LEGENDLEGEND

Proposed Series Existing Transmission Park / Other Protected Area Other AltaLink Project CapacitorProposed Location SeriesLine Capacitor Municipal or County ") Municipal or County Proposed Chapel Rock ExpandedLocation Study Area Hamlet or Locality BoundaryBoundary to Pincher Creek Substation Target Area Study Area Major Road Provincial Boundary Expanded Study Area Provincial BoundaryProposed Chapel Rock Existing Substation River or Stream Water Body to Pincher Creek Transmission Line Study Area Water Body Route " Existing Substation Other AltaLink Project Proposed Chapel Rock to Existing Transmission Line ") ! Pincher Creek Substation Hamlet or Locality Target Area Major Road Proposed Chapel Rock to River or Stream Pincher Creek Transmission Line Route Park / Other Protected Area Intertie Restoration Project schedule & next steps

Notify and consult with stakeholders: Fall 2018 to Summer 2019

File application with the AUC: Fall 2019

Start construction if project is approved: Spring 2021 (earliest)

Anticipated construction completion: 2023 (earliest)

An Environmental Evaluation identifies environmental features within the project area through existing data and field surveys.

Additional information is gathered from consultation with provincial and federal regulators, landowners and the public. This information is used to assist in route development. Potential effects from project impacts are identified, so that mitigations can be developed to minimize or eliminate these effects. Information within the Environmental Evaluation typically includes: • wildlife and vegetation inventories • wetland, watercourse and groundwater assessments • threatened and endangered species identification • terrain and soil evaluations EMF & radio frequency

AltaLink recognizes that people have concerns about exposure to Electric and Magnetic Fields (EMF) and we take those concerns very seriously.

Everyone in our society is exposed to EMF from many sources, including: • power lines and other electrical facilities • electrical appliances in your home • building wiring National and international organizations such as Health Canada and the World Health Organization have been conducting and reviewing research about EMF for more than 40 years. Based on this research, these organizations have not recommended the general public take steps to limit their everyday exposure to EMF from high voltage transmission lines.