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April 20, 2018 | What is Revealed by an Honest Appraisal of Pipeline Safety

Stewart Muir is founder and executive director of the Resource Works Society, a Vancouver-based group open to participation by British Columbians from all walks of life who are concerned about their future economic opportunities. He is an author, journalist and historian with experience on three continents including a financial editor of The Vancouver Sun responsible for mining and markets coverage. Since Resource Works was established in 2014, the group has gained international recognition for its practical approach to the public challenges of responsible natural resource development and use.

To hear some tell it, pipelines are an inherently unsafe way to move crude oil because they will (so the story goes) inevitably spring a leak.

With Kinder Morgan halting all non-essential spending on its Trans Mountain Expansion Project until some public issues are sorted out, let’s take a look at whether there really have been big problems with spills along the pipeline route.

Since commencing shipments in 1953, Kinder Morgan has moved just shy of 1 billion cubic meters of crude oil and refined products from Alberta to its Burnaby terminal.

That’s the equivalent of roughly 6.3 billion barrels of oil.

The estimate of 1 billion cubic meters is based on the following numbers:

  • The original line was commissioned in 1953 and had an initial capacity of 41,000 m3/day of oil (1 m3 = 1000 liters or 6.29 barrels).
  • The line was upgraded in 2008 and its capacity increased to 48,000 m3/day, which equates to roughly 457 train cars filled to capacity, creating a train 8.1 km long.
  • It has operated every day.

That’s the volume side of the equation. If we want to understand the safety risk, we’ll have to plug in the actual number and size of spills that have occurred.

Over the history of the pipeline, there have been 81 recorded spills. (Although many spills were far below the reporting threshold, they were reported anyway.)  Of these 81 spills:

  • Three were water spills
  • The eight smallest spills had a total combined volume of less than one cubic metre
  • Almost 65% of the spill volume was contained within a terminal where spill containment procedures and systems are rigorously maintained.
  • The worst pipeline spill in the last 15 years was caused by a careless road equipment operator who struck the line in 2007, releasing nearly 240 cubic metres.

It’s also worth pointing out that since the Westridge Marine Terminal began shipping oil to foreign markets in 1953, not a single spill has been reported in the coastal waters of British Columbia.

Run those numbers and what emerges is the figure of 99.999356%, representing the rate of safe delivery of petroleum through the pipeline.* Whenever a number is put up in the treacherous pipeline debates, you can be sure someone will come forward to seek its weakness. But this number stands for itself as a proof point of environmental performance.

There is no defence for a lax approach to protection. When a verified actual performance record shows how low the risk is, the public deserves to know about it.

In this case, using the latest design, regulation and technology, it is reasonable to expect that future performance will be even better than the past. Human error accounts for most spill events. Just as areas like airline safety and public health have been aggressively improved over time by active management of identified problems, so too will energy transportation continue to improve.

*Resource Works thanks Darren Vodden, an optimization technician based in Whitecourt, AB, for this calculation. He estimates it may carry a margin of error of around 2 per cent, and as a percentage value would be accurate to +/- 0.00001288%.

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April 20th, 2018

Posted In: Resource Works

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