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      <marc:subfield code="a">Pipeline rupture and fire, NOVA Gas Transmission Ltd., 36-inch Grande Prairie mainline, near Edson, Alberta, 16 April 2024.</marc:subfield>
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      <marc:subfield code="c">09 October 2025.</marc:subfield>
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      <marc:subfield code="a">Pipeline transportation safety investigation report ; </marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Rupture de gazoduc et incendie, NOVA Gas Transmission Ltd., conduite principale Grande Prairie de 36 po, près d'Edson (Alberta), 16 avril 2024.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">"On 16 April 2024, at approximately 1045 Mountain Daylight Time, a 36-inch (914 mm) pipeline owned by NOVA Gas Transmission Ltd. transporting sweet natural gas ruptured about 36.5 km northwest of Edson, Alberta. Following the rupture, the natural gas ignited, resulting in an explosion and fire. Approximately 5 980 000 m³ of natural gas was released. There were no injuries, and no evacuation of members of the public was required"--Summary, page 5.</marc:subfield>
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      <marc:subfield code="t">Rupture de gazoduc et incendie, NOVA Gas Transmission Ltd., conduite principale Grande Prairie de 36 po, près d'Edson (Alberta), 16 avril 2024.</marc:subfield>
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