Agenda Packets - 1987/03/16 - Laserfiche WebLink

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DOCKETS UNIT PAGE NINETEEN MARCH 24, 1987 (c) What would be the result in terms of accidents prevented if the current safety margin were increased? Response: It would be premature to conclude that increased safety margins would have an impact on the frequency of J accidents without ample opportunity being given to evaluate the results of an increase in the safety margin over time. (d) What would be the incremental cost of increasing the margin? Response: The City is not in a position to address the issue of cost to increase the required safety margin, however, any cost considerations need to be balanced' against the value of a human life and our environment. 15. Proposal: Require submission of four year comprehensive reports on the condition of pipelines (corrosion, leaks, etc.). Use these as basis for remedial action, i.e. pigs, pressure tests, replacement. (Min.. Rep., Rec. 42.) Response: It is the experience of the City of Mounds View that either the operators nor OPS maintain detailed data on the condition of pipeline systems. Also, it is shown by the evidence developed after the Mounds View incident that operators are not prone to voluntarily provide such data. In order to ensure Lhat the nation's pipeline systems are properly maintained, operators should be required to maintain and report such data and take appropriate action to invesitgate and repair deficiencies identified by the data. Questions: (a) What additional information about a pipeline's condition, besides what is now or will be required to be reported or recorded, would be useful in determining the need for integrity testing? Response: Any information base should include the results of required pipe -to -soil ration surveys as well as regular close interval surveys.