Sun | Jan 25, 2026

US utility company pleads guilty to causing gas blasts that killed one

Published:Monday | March 9, 2020 | 1:37 PM
In this September 13, 2018 file image from video provided by WCVB in Boston, flames consume the roof of a home following an explosion in Lawrence, Massachusetts (WCVB via AP, File)

BOSTON (AP) — A utility company pleaded guilty Monday to causing a series of natural gas explosions in Massachusetts that killed one person and damaged dozens of homes.

The president of Columbia Gas of Massachusetts, Mark Kempic, entered the plea in Boston’s federal court on behalf of the company responsible for the blasts that tore through three communities in the Merrimack Valley, north of Boston, in September 2018.

As part of the plea agreement, Columbia Gas of Massachusetts will pay a $53 million fine for violating the Pipeline Safety Act.

It’s the largest criminal fine ever imposed under the pipeline safety law.

The company said when the plea deal was announced last month that it takes full responsibility for the disaster.

Eversource has agreed to buy Columbia Gas of Massachusetts’ natural gas assets for $1.1 billion.

Any profit from the sale of the company will be handed over to the federal government along with the criminal fine.

Federal investigators blamed the explosions on overpressurised gas lines, saying the company failed to account for critical pressure sensors as workers replaced century-old, cast-iron pipes in Lawrence.

That omission caused high-pressure gas to flood the neighbourhood’s distribution system at excessive levels.

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