Category Archives: Incidents

San Bruno – organisational analysis

If you are in this industry you must be aware of the San Bruno failure in September 2010. The immediate causes are now well known.  Equally interesting is recent analysis of the underlying organisational failures in both the pipeline owner … Continue reading

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San Bruno penalty

News today is that the California Public Utilities Commission are recommending PG&E be fined an eye-watering US$2.25 billion for its failings leading to the San Bruno disaster.  My initial reaction was to wonder how taking such a huge sum out … Continue reading

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Arkansas failure – PHMSA information

When I wrote yesterday about the Arkansas failure the PHMSA website was down.  It’s now available again and has a page devoted to the Arkansas incident.  Of greatest interest is the Corrective Action Order, which contains a whole lot of interesting … Continue reading

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Arkansas failure

A couple of weeks ago (29 March) there was a significant failure of an ExxonMobil oil pipeline in Mayflower, Arkansas.  It attracted a lot of attention because it occurred in a suburban area – you are guaranteed to get lots … Continue reading

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Ignition frequency

Further to my last post where I made some assertions about the frequency of some failure consequences, there is particularly useful information available from European incident data.  EGIG is the European Gas pipeline Incident Group and as the name suggests … Continue reading

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“Hypothetical” frequency

In the AS 2885 risk matrix the five frequency levels are: Frequent – expected to occur once per year or more Occasional – may occur occasionally in the life of the pipeline Unlikely – unlikely to occur within the life … Continue reading

Posted in External interference, Incidents, Risk assessment | 4 Comments

Wide Bay Pipeline flood damage update

Below are couple of press releases from APA.  Sounds like a serious challenge. 1 February 2013 APA crews will commence permanent repair to the damaged pipeline on Sunday. A permanent repair is a significant task, offers considerable challenges and is … Continue reading

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