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Enbridge Integrity Dig Program - completion of repairs to Line 21 (Norman Wells Pipeline)

During planned integrity dig activities on Enbridge’s Line 21 (Norman Wells Pipeline) the week of February 4, 2013, the excavation crew encountered potentially contaminated soil in the immediate vicinity of the pipe in two locations. There is no free product requiring recovery at either site. The location of the first dig was kilometer post 457 on the line, approximately 60 kms west of Fort Simpson; the second at kilometer post 391. These sites were selected for investigation using high resolution pipeline inspection technology. In each case, the pipeline was shut down as a precautionary measure until repair sleeves were installed. Further investigation is being conducted at each site.

At KP 457 the lab analysis of the preliminary soil sample was completed and has indicated the presence of hydrocarbons. Approximately thirty cubic metres of potentially contaminated soil has been quarantined. Enbridge has completed installation of a repair sleeve at this location and is continuing a thorough environmental assessment with on-site support from third-party experts.

At KP 391, excavation has been completed and a repair sleeve installed. The line has been restarted. An estimated 60 to 70 cubic metres of potentially contaminated soil has been quarantined. An initial environmental assessment began immediately, and additional third party Environmental personnel were mobilized to this site to continue the assessment.

Enbridge has filed separate notifications to the NWT/NU Spill Report Line and has notified federal pipeline regulators and members of the local communities. The cause of the contamination at the two sites has not been determined and is being thoroughly investigated.

Enbridge places the highest priority on safety and operational performance. Our integrity dig program is an important component of our ongoing pipeline monitoring and inspection program intended to ensure the operating fitness of our pipelines and prevent incidents. For more information on our integrity dig program, visit www.enbridge.com/integrity.

Norman Wells - Integrity Dig
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Canada's largest gas distribution company. Serving 1.9 million customers in Ontario, Quebec and New York State.

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Enbridge Gas New Brunswick

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Enbridge Inc. (ENB) is a publicly-traded corporation on the New York and Toronto stock exchanges.

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Enbridge's U.S. operations - a leader in energy transportation in the Midwest, Mid-Continent and Gulf Coast regions of the United States.

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Enbridge Income Fund Holdings Inc. (EIFH) is a publicly-traded Canadian Corporation that invests in low-risk energy infrastructure assets.

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Midcoast Energy Partners

Midcoast Energy Partners (MEP) serves as EEP’s primary vehicle for owning and growing its natural gas and natural gas liquids (NGL) midstream business in the U.S.

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Emergency Contacts

Pipeline Emergencies

CANADA:

Enbridge Pipelines Inc. (incl. Norman Wells Pipeline)
1-877-420-8800
Enbridge Pipelines (Saskatchewan) Inc.
1-888-420-4357
Enbridge Pipelines (Athabasca) Inc.
1-888-813-6844



Natural Gas Emergencies in Ontario

Enbridge Gas Distribution Customers
1-866-763-5427
(1-866-smelgas)


UNITED STATES:

Illinois, Indiana, Kansas, Michigan, Minnesota, Missouri, New York, Ohio, Eastern Oklahoma, Wisconsin, Pembina County, North Dakota:
1 (800) 858-5253

North Dakota, Eastern Montana, Polk County, Minnesota:
1 (888) 838-4545

Texas, Western Oklahoma, Mississippi, Arkansas:
1 (888) 650-8099

Louisiana, Gulf of Mexico:
1 (877) 548-1800

Western Montana (electric transmission line):
1 (888) 780-8831