Archive: WFAA investigations into Atmos gas leaks date back a decade

WFAA's investigative team has been covering Atmos Energy's pipeline failures for more than a decade.

Nearly 3,000 homes in Northwest Dallas are affected by a voluntary gas service outage while Atmos Energy addresses gas line issues that have cause multiple house explosions in the area.

A 12-year-old girl was killed in the third gas-related house fire or explosion in as many days Feb. 21-23.

Related: 'Dallas city manager: We will hold Atmos accountable'

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Atmos claims it will fix miles worth of gas pipelines in the area in the coming weeks – a need all too familiar to neighborhoods across North Texas. WFAA's investigative team has been covering Atmos Energy's pipeline failures for more than a decade.

Watch a series of investigations below.

2007-08: 'The Buried and the Dead'

WFAA exposed how Atmos Energy's compression couplings were failing, resulting in injury and death.

2012-13: 'What Lies Beneath'

A follow-up investigation centered on Atmos Energy's reluctance to replace hundreds of miles of cast-iron gas pipes, which for decades regulators warned was prone to deterioration and failure.

TIMELINE: Gas leaks, explosions and Atmos' response in Northwest Dallas