Natural gas pipeline safety and emergency information for our neighbours

Transcription

1 Natural gas pipeline safety and emergency information for our neighbours Westcoast Energy Inc. (doing business as Spectra Energy Transmission - an Enbridge Company) Public Awareness Program, 2018

2 About Enbridge 1 Who we are At Enbridge, our most valuable relationships are with the people and communities we touch through our operations. As the owner and operator of thousands of kilometres of pipelines transporting oil and natural gas, our highest priority is operating our assets safely and reliably to protect the people, the communities and the environment located nearby. We transport energy At Enbridge, we connect people to the energy they need to fuel their quality of life. We are a North American leader in the gathering, transporting, processing and storage of natural gas with facilities from Texas to Maine to Florida to British Columbia. With 34,410 miles (55,377 km) of gas pipelines, we move approximately 20% of all natural gas consumed in the U.S., serving key supply basins and demand markets. We operate the world s longest, most sophisticated crude oil and liquids transportation system, with 17,511 miles (28,181 km) of active pipe. We also deliver an average of 2.8 million barrels of crude oil each day with a % safe delivery record over the past decade. We generate energy Our focus on the future of energy and sustainability has made us a major and growing renewable energy companywith nearly 3,000 megawatts (MW) of gross renewable and alternative generating capacity, based on projects in operation or under construction. We distribute energy Our customers rely on the clean-burning natural gas we deliver to cook their food and heat their homes. As owner and operator of Canada s two largest natural gas distribution companies, we provide safe, reliable service to 3.5 million residential, commercial, institutional and industrial customers in Ontario, Quebec, New Brunswick and New York State. This brochure references assets and facilities that are owned and operated by Westcoast Energy Inc. doing business as Spectra Energy Transmission. On February 27, 2017, Enbridge Inc. completed its combination with Spectra Energy, creating a new company operating under the name Enbridge Inc. Throughout this brochure, we will be referring to the company as Enbridge for simplicity and clarity.

3 PAGES 1-16 ARE 5 X 8.5 Enbridge s Canadian natural gas operations connect one of the most important natural gas supply resources in North America with growing North American markets. F

4 ritory PAGES 1-16 ARE 5 X 8.5 Enbridge is a major player in North America s natural gas industry, with gathering, transportation, processing, storage and distribution facilities from Texas to Maine to Florida to British Columbia. Norman Wells UNITED KINGDOM London Brighton and Hove English Channel Zama Athabasca Peace River Fort St. John Fort McMurray Cheecham Edmonton Kerrobert Hardisty Vancouver Calgary Lethbridge Regina Cromer Rowatt Halifax Gretna Great Falls Buffalo Superior Minot Edgar Boise Sarnia Stockbridge Casper Guernsey Gurley Fredericton Montreal Clearbrook ChicagoToledo Channahon Flanagan Toronto Westover Buffalo Chatham Leidy Oakford Accident Salisbury Patoka Wood River Boston New York Philadelphia Steckman Ridge Saltville Nashville Cushing Moss Bluff Bobcat New Orleans Egan Port Arthur Houston Orlando Tampa LNG Facility Liquids Pipeline LNG Facility Rail Natural Gas Transmission Pipeline Rail Trucking Facility Natural Gas Gathering Pipeline Trucking Facility Propane Terminals Natural Gas Liquids Pipeline Propane Terminal Power Transmission Crude Storage or Terminal Power Transmission Waste Heat Recovery Gas Storage Facility Renewable Energy Geothermal Power NGL Storage Facility Wind Assets Gas Processing Plant Proposed Wind Assets Gas Distribution Service Territory Solar Assets Affiliated Gas Distribution Territory Hydroelectric Power Assets

5 Our operations 4 With our focus on gathering, processing and transporting natural gas and natural gas liquids (NGL), we have built a business that is substantial in both size and scope. Our BC Pipeline system stretches from north of Fort Nelson in northeast B.C. and from Gordondale near the B.C./ Alberta border, south to the Canada/U.S. border at Huntingdon/ Sumas. This system, which serves markets throughout B.C. and the Lower Mainland, the U.S. Pacific Northwest and beyond, transports approximately 60 per cent of the gas produced in the province. The BC Field Services business is an integrated raw gas gathering and processing system that gathers natural gas from some of the most productive natural gas wells in North America including northeast B.C., the Yukon, Northwest Territories and Alberta. Our Midstream network is one of the largest independent operators in the Western Canadian Sedimentary Basin. This segment consists of natural gas gathering and processing facilities in B.C. and Alberta with a net processing capacity of approximately 760 million cubic feet per day. Pipelines in Enbridge, and its subsidiaries, Canadian natural gas transmission network are regulated by the National Energy Board (NEB), the British Columbia Oil and Gas Commission (BCOGC) and the Alberta Energy Regulator (AER).

6 5 Above ground facilities While most of our pipelines are buried underground, our systems also include many above-ground facilities. It s important that you know what to expect as part of normal operations at these facilities. Facility Purpose Normal Operations Compressor/ booster stations Processing plants Metering stations and valve sites Compressor/ booster stations move natural gas through the pipeline at a consistent pressure. These plants separate impurities and products like propane, butane, natural gasoline and water from raw natural gas. Metering stations measure the flow of products through the pipeline, while valve sites help control the flow of products through the pipeline and help control and isolate, if necessary, the flow of products through the pipeline. Each station has built-in safety features that detect problems and automatically shut down equipment. During normal operations, you may hear a loud noise as a result of venting. You may also see a flame or flare, though no significant odours should be detected. You may sometimes see a flame or flare at the top of the stack. This continually monitored process is part of the facilities' safety system and keeps equipment from becoming over pressured. During normal operations, no significant odours should be detected. During normal operations, you may hear a loud noise as a result of venting. You may also see a flame or flare, though no significant odours should be detected. Do not operate pipeline valves! Doing so may cause a pipeline leak, impact customer service and operations or cause severe injury to anyone who may be working on the pipeline nearby, including you. If you notice any suspicious activity or abnormal odour near the right-of-way (ROW) or at one of our above ground facilities, find a safe place to call 911 immediately, then call Enbridge s 24-hour emergency number: Even if you are uncertain of the severity, we appreciate your call as it allows us to dispatch an Enbridge representative to investigate the situation.

7 Pipeline safety 6 Pipelines are the single safest method of transporting natural gas and petroleum products, and we have a proven record of more than a half-century of experience. A shared responsibility Enbridge, and its subsidiaries, take their responsibility for safe pipeline operation seriously. Being responsible for pipeline integrity, however, does not mean working alone. We work year-round to provide safe, reliable operations, and we regularly communicate important information to local governments, community fire and police services, emergency responders, utilities, contractors, neighbours and tenants. This responsibility also means developing integrated response plans based on open communication and teamwork. We work with local fire and police services so that they have the information they require to respond in the event of an emergency. We hold regular training exercises in select locations throughout the year to keep employees skills fresh, and to maintain strong and effective coordination with local emergency responders. As a neighbour, you also make an important contribution to the team. By observing ROW safety precautions, knowing your responsibilities for working around the pipeline and keeping in touch with Enbridge, including notifying us of anything out of the ordinary, you can help prevent incidents and minimize their impacts, should they occur. From the ground up While our natural gas pipelines are buried beneath the ground in the ROW, we never lose sight of the bigger picture of our potential impact on the air, water and land around us. In fact, our activities everything from pipeline design, construction, testing, maintenance, operation and safety practices are subject to government and environmental regulations and standards, which we meet or exceed. When we do disturb the ground, every effort is made to restore the land to its original condition or better. Protecting your community Enbridge has a wide range of programs to safeguard the health of the natural gas systems that traverse your land or are located near your community. We invest heavily in the tools, technologies, people and strategies we need to make sure our pipeline networks operate safely and reliably. Safety in processes and technologies From the purchase of high quality steel pipe manufactured to meet stringent criteria, to the cathodic protection system (use of low voltage electric current) we employ to prevent corrosion once the

8 7 pipe is installed, Enbridge makes the safety of the system a priority before and during its operation. The processes and technologies we use to prevent and detect leaks include: The careful selection and testing of pipe prior to and during the manufacturing process; Sophisticated monitoring and control systems that operate around the clock, 365 days a year; 24/7 gas control that monitors pipeline pressure; Research and development on technologies designed to prevent corrosion and cracking; Tests to confirm pipeline integrity on new pipelines/systems; The use of durable coating systems and cathodic protection to protect pipe from external corrosion; The use of increasingly sophisticated in-line inspection technologies to measure the size and location of even minute changes in the integrity of every line in our system. Safety in people and practices In addition to developing and putting the right processes and technologies into place, the right people and practices also drive our efforts to keep the pipeline safe. Our initiatives include: Regular pipeline ROW patrols by aircraft and in some areas by foot; Investigative dig programs to help pipeline integrity; Meeting and exceeding industry standards and regulations; Public awareness and damage prevention education and outreach; Research and development; Stationing emergency response staff and equipment at strategic locations along the pipeline route. The way we do business At Enbridge, Corporate Social Responsibility is about values and the extent to which these values drive our decisions from how we incorporate safety, reliability and environmental protection into every aspect of our operations; to how we deliver economic and social benefits to our communities; to how we treat our employees and stakeholders; to our investments in innovation. In carrying out our work, it s our responsibility to manage our environmental, social and economic impacts and to be accountable for our performance. We know that we must work hard to earn public trust by basing our actions on our values Safety, Integrity and Respect and by delivering on our commitments. Our values are the basis of everything we do, who we are, who we strive to be, and how we do business. To read more on Enbridge s social and environmental performance, including the progress we made and the challenges we faced, please visit csr.enbridge.com.

9 Understanding the ROW 8 Damage prevention is a shared responsibility and our goal is to educate all persons living or working near our pipelines to help you understand the role you also play in protecting underground systems. Understanding the pipeline ROW A ROW is a strip of land of varying widths that contains one or more pipelines. The ROW: Allows our workers access for inspection, maintenance, testing or emergencies Identifies an area that restricts certain activities to protect public safety While permanent pipeline markers are located at roads, railways and other intervals along the ROW, these show only the approximate location of the buried pipelines. The depth and actual location of the pipes vary within the ROW. The ROW exists in many kinds of environments from river crossings and cultivated fields to sub-arctic tundra and urban areas. Because of this, there is no distinct look to the ROW. To reduce damage, some activities are not allowed on a pipeline ROW without written permission from the company. These include but are not limited to: Operating vehicles or mobile equipment over the ROW where a road does not exist; Placing or storing equipment on it (mobile or otherwise) such as buses, trailers, mobile homes, boats, cars, and woodpiles; Building or placing structures on it such as sheds, driveways, roads, foundations, walls, fences, gazebos, skating rinks, swimming pools or berms; Slash burning or any other type of fire; Using explosives. All pipeline markers provide the name of the pipeline operator, product being transported and a telephone number for reporting pipeline emergencies.

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11 Damage prevention 10 DEPTH OF COVER OVER PIPELINE(S) MAY VARY RIGHT OF WAY 30 metre (100 feet) Prescribed/ Controlled Area 30 metre (100 feet) Prescribed/ Controlled Area 30 metre (100 feet) Prescribed/ Controlled Area 30 metre (100 feet) Prescribed/ Controlled Area Enbridge complies with specific pipeline standards and regulations in each jurisdiction in which its companies operate. Enbridge, and its subsidiaries, pipelines are primarily regulated by the National Energy Board (NEB), with certain assets also regulated by the Alberta Energy Regulator (AER) and the British Columbia Oil and Gas Commission (BCOGC). The NEB Prescribed Area and the AER Controlled Area In addition to the ROW where the pipeline is located, the NEB, the BCOGC and the AER have established a 30 metre (100 foot) area, measured perpendicularly on each side, from the centreline of the pipe, where certain activities require written permission from Enbridge. This area, called the Prescribed Area along NEB regulated lines and the Controlled Area along AER-regulated lines, has been established to protect the pipeline, the environment and you. "Ground disturbance" means any activity disturbing the ground, either exceeding 30 centimeters in depth or permanently reducing the amount of pipeline cover. If you are planning to construct a facility across, along or under a pipeline, engage in a ground disturbance activity, use explosives within the Prescribed/ Controlled Area, operate a motorized vehicle or mobile equipment across the ROW, you must contact Enbridge first and obtain written permission. We will work with you so that you may complete your work safely. Other NEB requirements Under the NEB Act, the responsibility to prevent pipeline damage is shared between anyone who plans to conduct an activity near a pipeline and the pipeline company. Ground disturbance and construction activities in the Prescribed Area of Enbridge companies pipeline(s) are subject to the legal requirements of the NEB Act and the NEB Pipeline Damage Prevention Regulations Authorizations (required by Third Parties), and Pipeline Damage Prevention Regulations Obligations of Pipeline Companies (together, the DPRs). The DPRs outline the requirements for any person planning or undertaking an activity near an NEB-regulated pipeline as well as an NEB-regulated pipeline company. The DPRs require persons planning the construction of a facility across, on, along or under a pipeline or a ground disturbance activity in the prescribed area to make a locate request by contacting the One-Call centre in their area (Click or Call Before You Dig). Among other requirements, the person must also have

12 11 the written consent from Enbridge to conduct the activity. For more information, please review the DPRs at It is your responsibility to understand the regulatory requirements, when planning work in proximity to a NEB regulated pipeline, or call us if you have questions. We ll be there Before undertaking any ground disturbance activity within the Prescribed/ Controlled area of a pipeline, landowners must notify their local One-Call center. The One-Call center will notify Enbridge and request that Enbridge identify and mark the location of the pipeline. For NEB and BCOGC-regulated assets, these requests are to be made at least three working days before a planned activity. For AER-regulated lines, the locate request should be done at least two days, and not more than 10 days, prior to work commencing. This call allows us to: Locate and mark our pipelines; Where possible, help you obtain written permission for excavations on or within 30 metres (100 feet) of our pipe; Provide guidelines for excavation and blasting; Have an Enbridge field representative on site when the work is being performed. For activities outlined by the NEB DPRs, written permission is required. Once you submit a written request, we will contact you to ensure you receive the needed permissions for your work. If you are unsure whether or not you require permission, always Click or Call Before You Dig. Activities on the ROW Crossing of the pipeline with vehicles or mobile equipment that is used to perform agricultural activity (the production of crops and the raising of animals) is authorized if certain conditions are met: the loaded axle weight and tire pressures of the vehicle are within the manufacturer s approved limits and operating guidelines; and, the point of crossing has not been the subject of a notification from the pipeline company. If your vehicle does not meet the above requirements, or you are unsure whether your activity may impact the safety of the pipe, please call your local One-Call center, or call us using the numbers at the back of this brochure. Authorization is still required for any activity that may cause ground disturbance or jeopardize the safe and secure operation of the pipeline. We will work with you to evaluate the request and help meet your needs. These activities include but are not limited to the following: Crossing the pipeline with heavy equipment or loads where the loaded axle weight and tire pressure of the vehicle or mobile equipment exceeds the manufacturers approved limits and operating guidelines; Deep tilling to a depth of more than 45 centimetres (18 inches); Constructing roads, paving, parking, driveways, ditches, railways, overhead or underground utilities or other facilities; Encroaching on the ROW with services or other facilities;

13 Damage prevention (continued) 12 Building a berm; Stockpiling materials; Activity resulting in excessive rutting from tires; Conducting a ground disturbance activity. Ground disturbance activity A ground disturbance does not include cultivation to a depth of less than 45 centimeters (18 inches) or any other activity to a depth of less than 30 centimeters (12 inches), and does not remove soil cover to a depth less than the cover provided when the pipeline was constructed. Unless you know the original depth, you should consider your activity a ground disturbance and dig with caution and care, as roots or machinery can damage the pipeline. Ground disturbance activities include, but are not limited to, the following: Digging or excavating; Trenching, ditching or tunnelling; Boring or drilling; Auguring; Topsoil stripping; Land levelling or grading; Plowing; Tree planting or installing fence posts; Clearing or stump removal; Blasting or using explosives; Quarrying seismic exploration; Driving or installing fence posts or piling; Crossing a pipeline with heavy loads off the travelled portion of a public roadway. Drainage improvements If you are planning to improve drainage across or within the ROW, please consult with us first. Consulting with us as early as possible regarding your drainage proposals, including installing tiles, ditching or grading,will allow us to assess your work and set safe work procedures when working within the Prescribed Area. If you are planning to install drainage tile, design drawings must be submitted early for review and approval. Unauthorized Activity and Administrative Monetary Penalties Certain contraventions of the NEB Act and its associated regulations, such as the DPRs, must be reported by Enbridge to the NEB. Such contraventions can result in the NEB imposing financial penalties called Administrative Monetary Penalties (AMPs) on companies or individuals. The NEB Act sets out maximum daily penalties for both individuals and companies. For individuals, the maximum daily penalty is $25,000 for each violation. For companies, the maximum daily penalty is $100,000 per violation. Unauthorized activities, such as not calling your local One-Call center to have facilities located, are actions that could be subject to AMPs. Help us keep our pipeline safe and avoid AMPs by following the six step safety checklist. More information about the DPRs and AMPs can be found on the NEB website at neb-one.gc.ca

14 13 Always contact an Enbridge representative if you are unsure if your planned work requires a site visit or written consent from the company. Please call us at one of the telephone numbers listed on the last page of this brochure. Click or Call Before You Dig We know that sometimes work needs to be done on or near the pipeline. That s why we participate in Click or Call Before You Dig, a free pipeline locator service. Within three working days of your request, an Enbridge representative will be at your door, ready to mark the location of the line. B.C One Call Alberta One Call Six step safety checklist If you are planning to conduct work on or near an Enbridge ROW please follow this six step safety checklist: 1 Plan your activity Identify the precise location of your work, check records for evidence of pipelines or other buried utilities. 2 Contact your local One-Call centre by phone or visit ClickBeforeYouDig.com 3 Be on-site when the pipeline is being located and check that all other buried utilities are located. 4 Obtain the necessary written permissions if conducting work on the ROW. 5 Immediately notify Enbridge at if you come into contact with the pipe or its coating. 6 Always follow the instructions of an Enbridge representative.

15 Emergency response 14 In the unlikely event of a pipeline leak, Enbridge will work with local emergency responders to secure the area and get you the information you need to stay safe. In an emergency At Enbridge, safety is and always will be, our number one priority, Pipelines have been proven as the safest transportation mode for energy commodities. Pipeline leaks are rare but can happen for a number of different reasons. Statistics show that third party damage is one of the most common reasons for pipeline leaks or ruptures, which underscores the importance of Click or Call Before You Dig programs. Internal inspection tools are used to detect potential problems with the pipeline in advance, which enables Enbridge to perform investigative digs and repair any anomalies. Since some commodities are more flammable than others, a pipeline leak or rupture will have different consequences depending on the commodity being transported. Hydrocarbon products such as natural gas liquids are very flammable, and will catch fire from even the smallest spark or ignition source. The products in Enbridge s pipeline system are flammable, and are potentially hazardous and explosive under certain conditions. Immediate response Enbridge uses the Incident Command System (ICS) for managing a response to an emergency. ICS s organizational structure is designed to coordinate with other responding agencies to manage public, responder, site and environmental safety, as well as clean up and waste management. In the event of an incident, our emergency response plan will immediately go into effect and we will work closely with local emergency responders to identify and resolve the issue. Personnel from Enbridge s gas control centre have the ability to quickly shut down and isolate sections of the pipeline. Local emergency responders will be notified. They may secure the area and move residents to a safe location depending on the situation. Our trained emergency response crews will arrive to deal with the issue, repair the damaged pipe and perform the necessary reclamation work. Emergency response training Regular training and rigorous qualification procedures for pipeline workers facilitate safe and efficient operation of our pipelines. Employees throughout our Company participate in regular emergency response drills and simulations to test and improve procedures. Also, emergency and crisis preparedness plans help to minimize the impact of an incident and form part of our compliance with regulatory requirements. Emergency response training exercises are a key part of our emergency response preparedness. Response personnel receive regular classroom and field demonstration training. Frequent exercises are critical to maintaining response readiness.

16 Public awareness 15 Collection of personal information Enbridge has a Public Awareness Program dedicated to educating members of the public on the presence of pipelines in their community and to provide important information relating to emergency awareness and pipeline safety to those who live or work near our pipelines. Representatives from Enbridge regularly visit landowners and residents near our pipeline systems to discuss our emergency preparedness procedures. During these visits, personal information may be requested such as the names and contact information of all individuals residing on a property, we also collect relevant emergency information to assist in emergency preparedness, planning and actions. Reporting suspicious activity If you notice any suspicious or unusual activity on or near the pipeline ROW, please contact Enbridge immediately to safeguard public safety and the security of the pipelines. Suspicious or unusual activities could include: Inquiries or questions being asked about Enbridge pipelines, facilities or employees that do not relate to normal operations; Threats being made or acts of vandalism against Enbridge pipelines, facilities or employees; Surveillance by an individual or group which involves taking pictures, videos or monitoring facilities with binoculars; Abandoned packages, equipment or vehicles left near Enbridge pipelines or facilities.

17 How to reach us 16 We appreciate your calls, any time of the year, any time of the day. This page contains important phone numbers you can use to contact an Enbridge representative. In case of an emergency, please find a safe place to call 911 and then call Enbridge at: For questions regarding Enbridge agreements, general operations or if you need to plan construction, fencing, digging or explosives use, please call the number for your area: British Columbia & Alberta crossings@enbridge.com For Enbridge landowner representatives: (Toll-free) contact_lands@enbridge.com More information can also be found online at: Enbridge.com/damageprevention Click or Call Before You Dig Any person who intends to construct a facility across, on, along or under a pipeline, operate a motorized vehicle or engage in activity that would cause a ground disturbance within the Prescribed Area, must make a locate request at least three working days before the day on which the construction or activity is to start. B.C One Call Alberta One Call Links for more information Canadian Energy Pipeline Association CEPA.com Enbridge Pipelines Inc. enbridge.com National Energy Board (NEB) neb-one.gc.ca British Columbia Oil & Gas Commission (BCOGC) bcogc.ca Alberta Energy Regulator (AER) aer.ca

18 Pipeline safety and awareness: A shared responsibility Awards & recognition The Enbridge system doesn t just run through communities it connects them. And keeping in touch with you is very important to us. That s why we ve created this brochure, to connect with the landowners, residents, business owners and community members near Enbridge s natural gas pipeline systems across Canada. Your address indicates that you live, work, or own property or a business near a gas transmission pipeline or gathering system operated by Spectra Energy, an Enbridge Company*. As such, we are sharing with you this important brochure to provide information regarding: how to have pipelines located and marked in order to excavate safely, how to identify where pipelines may be located in proximity to your home or business, how to recognize a pipeline emergency, and how to contact us. All of our pipelines are monitored If you suspect a pipeline emergency, please find a safe place to call 911, and then call Enbridge s toll-free 24 hour emergency number: How to reach us: Public Awareness Hotline (non-emergencies only) Phone CdnPublicAwareness@enbridge.com Mail Public Awareness Advisor 200, 425 1st Street SW Calgary, AB T2P 3L8 Website Enbridge.com/cdnpublicawareness Facebook facebook.com/enbridge Global 100 Most Sustainable Corporations in the World Dow Jones Stainability Index (North America) Canada's Top Employers for Young People Top Employers for Canadians Over 40 Click or Call Before You Dig Before performing any ground disturbance activity, please contact your local One-Call centre. Alberta: British Columbia: Know who to call in an emergency. Peel and place this cling sign on a flat surface like a window.

19 In an emergency call then call Enbridge at Spectra Energy Midstream Inc. Westcoast Energy Inc. Before performing any ground disturbance contact your local one-call centre as follows: British Columbia or Alberta

20 Sour Gas Pipelines What is sour gas? Raw natural gas is most often known as sour gas and contains contaminants including hydrogen sulphide (H₂S). This naturally occurring product can be found in Northeastern B.C. and the foothills of Alberta s Rocky Mountain Region, where production wells are common. A large majority of the sulphur in Western Canada s sour gas wells are used in the manufacturing of fertilizers, paper, pharmaceuticals, steel and other products. Sour gas is toxic and flammable. If ignited, sour gas containing H₂S produces sulphur dioxide (SO 2 ) which disperses quickly into the atmosphere. The impact of sour gas on people varies depending on the concentration and length of exposure. It can impair the sense of smell and cause eye, nose, and throat irritation. Individuals with respiratory problems, the elderly and the very young may be affected differently than others. In some instances, where concentrations are high or medical attention is not available, it can be fatal. Know the warning signs A sour gas leak may be detected by sight, sound or smell. You might see: Dead or dying vegetation on or near a pipeline in an otherwise green area. Water bubbling or blowing into the air at a pond, creek or river. Dirt being blown or appearing to be thrown into the air. Frost build up on the ground. Fire coming from the ground or appearing to burn above the ground. You might hear: A roaring, blowing, hissing or loud whistling sound. You might smell: An unusual sulfur or rotten egg odour. Sour gas smells like rotten eggs. In some instances, exposure to sour gas can diminish a person s sense of smell, so it s important to know that smell cannot always be trusted to warn of sour gas. If you suspect there may be an H₂S gas release from a pipeline (for example if you detect a strong rotten egg odour, detect the sound of a leak, or observe a gas release), take shelter in your residence. Immediately call 911, then call Enbridge s 24-Hour Emergency Number , and follow the instructions outlined by the emergency response personnel. Steps for a safe response If an emergency occurs that could affect your safety, you will be notified by telephone or personal visitation and provided with appropriate information and guidance. Residents may be asked to evacuate if it is no longer safe to be in the area, or to shelter-in-place if there is something unsafe in the environment. The instructions given to you will depend on your location in relation to the incident or release site. Sheltering-in-place is a way to stay safe when the duration of the gas release is short, or escape routes near the hazard or evacuation would place individuals at risk.

21 To shelter-in-place, follow these steps: Go indoors. Close all windows and doors and locate to the highest floor in the house. Take shelter in a room with the least amount of windows and vents. Call 911. Your cell phone can be an ignition source so you must be a safe distance away before using it. Call Enbridge s 24-hour emergency telephone number Wait for further instructions from Enbridge emergency personnel or other first responders. Turn off any appliances or equipment that circulate air, such as exhaust fans, gas fireplaces, gas stoves, and heating ventilation and air conditioning (HVAC) systems. Leave all other electrical switches as they were, do not turn them off or on. Seal the room using a wet towel at the base of the door. Stay tuned to local radio and television (battery- operated) for possible information updates. Keep phone lines open so that you can be contacted by emergency response personnel. Even if you see people outside, do not leave until told to do so. What NOT to do in an emergency situation: Do not touch or go near any leaking gas, liquid or vapour that may have come from the pipeline. Do not start your vehicle or any other piece of equipment that can act as a possible ignition source. Do not light a match or smoke, and avoid heat sources or making sparks that could ignite the leaking gas as you are leaving the area. Do not turn on or off anything that may create a spark including cell phones, telephones, light switches, vehicle alarms, vehicle keyless entry and flashlights until you are in a safe location What happens next? Public safety will be the top priority as Enbridge, contractors and local emergency responders work together to evaluate and respond to a pipeline leak. Enbridge personnel may shut down or isolate sections of the pipeline. Public safety officials and local emergency responders will oversee public safety measures like securing the scene, providing medical aid and other lifesaving services, and getting you the information you need to stay safe. Enbridge will work with appropriate agencies to remediate any impacts caused by the leak; this may mean entering properties on or near the pipeline to control or divert the flow of product.

22 Sweet Gas Pipelines What is sweet gas? A naturally occurring product, the sweet gas transported through Enbridge s pipeline systems is composed primarily of methane and is non-toxic. However, when mixed with the appropriate ratio of oxygen, it can easily ignite. Sweet gas is lighter than air and will readily disperse with the wind. It s important to know the signs to detect a sweet gas leak. Know the warning signs A sweet gas leak may be detected by sight, sound or smell. You might see: Dead or dying vegetation on or near a pipeline in an otherwise green area. Water bubbling or blowing into the air at a pond, creek or river. Dirt being blown or appearing to be thrown into the air. Frost build up on the ground. Fire coming from the ground or appearing to burn above the ground. You might hear: A roaring, blowing, hissing or loud whistling sound. You might smell: Sweet gas has a slight petroleum or hydrocarbon smell. Unlike the gas that is distributed in homes, the sweet gas in Enbridge s pipelines does not have an odourant added to enhance its smell. If you suspect a sweet gas leak: Your personal safety is our number one priority. If you suspect a sweet gas leak, follow these steps: Leave the area If you are outdoors, shut off all engines and leave the area immediately, moving to a location up or cross wind. The use of motor vehicles or other equipment can be a potential ignition source and should not be used. If you are indoors, evacuate everyone at the residence or business and take any small pets with you (if safe to do so). Once you reach safety, call 911. Your cell phone can be an ignition source so you must be a safe distance away before using it. Call Enbridge s 24-hour emergency telephone number Wait for further instructions from Enbridge emergency personnel or other first responders. If safe to do so, warn others to stay away. If it is not safe to evacuate, shelterin-place (please see shelter-in-place instructions on next page). If an emergency occurs that could affect your safety, you will be notified by telephone or personal visitation and provided with appropriate information and guidance. The instructions given to you will depend on your location in relation to the incident or release site.

23 What NOT to do in an emergency situation Do not touch or go near the leaking gas, liquid or vapour that may have come from the pipeline. Do not try to shut the gas off. Do not start your vehicle or any other piece of equipment that can act as a possible ignition source. Do not light a match or smoke, and avoid heat sources or making sparks that could ignite the leaking gas as you are leaving the area. Do not turn on or off anything that may create a spark including cell phones, telephones, light switches, vehicle alarms, vehicle keyless entry and flashlights until you are in a safe location. What happens next? Public safety will be the top priority as Enbridge, contractors and local emergency responders work together to evaluate and respond to a pipeline leak. Enbridge personnel may shut down or isolate sections of the pipeline. Public safety officials and local emergency responders will oversee public safety measures like securing the scene, providing medical aid and other lifesaving services, and getting you the information you need to stay safe. Enbridge will work with appropriate agencies to remediate any impacts caused by the leak; this may mean entering properties on or near the pipeline to control product. Shelter-in-place Residents may be asked to evacuate if it is no longer safe to be in the area or to shelter-in-place if there is something unsafe in the environment. Sheltering-in-place is a way to stay safe when the duration of the gas release is short, or escape routes near the hazard or evacuation would place individuals at risk. To shelter-in-place, follow these steps: If you are outdoors, shut off all engines and leave the area immediately. Take small pets with you and move to an area up or crosswind. The use of motor vehicles or other equipment can be a potential ignition source and should not be used. Go indoors, close all windows and doors and locate to the highest floor in the house. Take shelter in a room with the least amount of windows and vents. Call 911. Your cell phone can be an ignition source so you must be a safe distance away before using it. Call Enbridge s 24-hour emergency telephone number Wait for further instructions from Enbridge emergency personnel or other first responders. Turn off any appliances or equipment that circulate air, such as exhaust fans, gas fireplaces, gas stoves, and heating ventilation and air conditioning (HVAC) systems. Leave all other electrical switches as they were, do not turn them off or on. Stay tuned to local radio and television (battery- operated) for possible information updates. Keep phone lines open so that you can be contacted by emergency response personnel.