Safety First. Always.

Urban Pipeline Replacement Program

Information Session: Fish Creek Park Project

A NAT U R A L GA S P I P E L I N E I N I T I AT I V E

Please join us on Thursday, May 7 between 4:00 p.m. and 8:00 p.m.

St. Mary’s University Fr. Michael J. McGivney Hall

14550 Bannister Road S.E.

ATCO Gas and ATCO Pipelines will be on hand to provide information on the project

and answer any questions you may have.

*Subject to Change

Fish Creek Park Project OverviewAs part of UPR, ATCO Gas needs to complete natural gas system and safety improvements in the area of Fish Creek Provincial Park. The project can be broken into three components.

• The high pressure line currently running under the Park and up into the neighbourhoods of Sundance and Lake Bonavista will be transferred to low pressure service helping to improve public safety.

• A new low pressure 508 mm (20”) natural gas line will be constructed to maintain capacity and improve reliability of the natural gas system in the area. This low pressure distribution line will operate at the same pressure as the gas lines that deliver natural gas to your home. The line will run from the new South Calgary gate station located in the Stoney Trail TUC, under Fish Creek Park.

• This work will allow ATCO Gas to remove three existing gate stations from within the communities of Chaparral, Midnapore and South Midnapore and operate other facilities at reduced pressure.

ATCO Gas has been working with Alberta Environment and Sustainable Resource Development (AESRD), the City of Calgary and the Friends of Fish Creek Park to explore possible locations for this work that will minimize the inconvenience and impact to residents, park users and the Park. We are also working with AESRD to plan for any special considerations for this area.

As a result, much of the construction of the new line in Fish Creek Park will use directional drilling methods. This will minimize the impact of construction on the area.

ATCO’s Urban Pipeline Replacement Program On January 17, 2014, ATCO Pipelines received approval from the Alberta Utilities Commission to proceed with the Urban Pipeline Replacement (UPR) Program. The program will see the transmission of natural gas moved from aging high-pressure pipelines located within densely populated Calgary and Edmonton neighbourhoods to new, modern pipelines within the Transportation Utility Corridors (TUC) surrounding the cities. The existing pipelines will then be abandoned or used for natural gas distribution at much lower pressures – allowing it to be delivered to homes and businesses.

By doing this, ATCO will improve public safety, modernize the natural gas network and add the capacity needed to meet the growing demand for natural gas in the two cities.

High Pressure vs. Low Pressure

Typical gate station used to reduce the pressure of natural gas so it can be safely distributed to homes and businesses.

High pressure transmission pipelines are the most cost efficient way to transport large amounts of natural gas. High pressure is generally considered to be between 100 psi and 1200 psi. The transmission pipeline currently in Fish Creek Park operates at 300 psi.

ATCO Gas has more than 40,000 km of distribution pipelines running throughout Alberta, bringing natural gas directly to homes and businesses. The distribution gas lines operate at a much lower pressure, reducing the volumes of gas that are transported and as a result an additional gas line is needed for this project. The distribution pipelines serving Calgary are operated below 60 psi.

Pathways are shown larger than actual

Keith Retzlaff, P.Eng Manager, UPR Program, ATCO GasPhone: 403-245-7574Email: keith.retzlaff@atcogas.com

Brian CoxDirector, Calgary Region Operations, ATCO GasPhone: 403-245-7643Email: brian.cox@atcogas.com

Fish Creek Park Project Highlights & Proposed Timelines*While the majority of the project is expected to start in mid-2015 and be completed by mid-2016, construction activity will be limited to distinct sites along the project path, minimizing the disruption to residents and the Park.

New South Calgary Gate Station

In 2015, ATCO Gas will complete the new South Calgary Gate Station currently under construction in the Transportation Utility Corridor (TUC) adjacent to the Lake Chaparral Community.

New Low Pressure Gas Line Installations

ATCO Gas will install new low pressure steel main distribution natural gas lines from the new South Calgary Gate Station:

• In Summer 2015, a 406mm (16 inch) low pressure gas line will be built west within the TUC to connect to an existing high pressure pipeline, the latter to be operated at a lower pressure.

• In Summer 2015, a 508mm (20 inch) low pressure gas line will be built east within the TUC to connect into the Chaparral system, and then beneath Stoney Trail north towards and along Sun Valley Boulevard and Sun Valley Drive SE.

• Starting in Winter 2015, a new low pressure gas line will extend from Sun Valley Drive north under Fish Creek Provincial Park to connect at Canyon Meadows Drive and Acadia Drive SE to a low pressure pipeline.

Pressure Reductions

In 2016, some of the existing high pressure pipelines will be reduced to low pressure similar to the gas lines that deliver natural gas to your home. Some segments of high pressure pipelines will no longer be required and will be removed from service and properly abandoned in place.

Gate Stations to be Removed

ATCO Gas will be removing the existing Chaparral Gate Station from service by the end of 2015. In 2016, the existing Midnapore and Midnapore South Gate Stations will be removed from service, with land reclamation to follow.

The Fish Creek Park Project is an important part of ATCO’s UPR Program that will improve public safety by moving high pressure natural gas pipelines into the TUC and allow ATCO Gas to improve the reliability of the system serving residents and businesses in the area.

Contact Us If you are unable to attend the information session or have additional questions, we welcome the opportunity to discuss this or any of our projects with you.

Information SessionPlease join us on Thursday, May 7 between 4:00 p.m. and 8:00 p.m. at St. Mary’s University, 14550 Bannister Road S.E. - Fr. Michael J. McGivney Hall.

ATCO Gas and ATCO Pipelines will be on hand to provide information on the project and answer any questions you may have.

More information and project updates will be available at ATCOGas.com

*Subject to Change

Safety First. Always. | ATCOGas.com