In a troubling decision, California state regulators could allow the Aliso Canyon natural gas site near Los Angeles to reopen, despite the fact that the cause of 2015’s massive gas leak has never been determined. In October, a pressurized gas well blew out and released a massive plume of natural gas for five months before it was sealed permanently with cement, forcing thousands of nearby residents to evacuate their homes.

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It’s unclear exactly when the site will reopen, and there are still two public hearings in February before regulators make a final decision. So far, only 34 of the remaining 114 wells on the site have been tested for safety. While those particular wells have passed pressure tests, there are indications that some may have below-ground leaks. The extent of them, however, is unknown.

Even more disturbing is the fact that the Santa Susana Fault runs through the gas field, yet seismic testing has yet been completed verifying the safety of the facility in the event of an earthquake. Geologists tapped by the state in December 2016 warned regulators that a significant earthquake is likely to hit the area sometime in the next 50 years.

Related: Damage report reveals LA methane leak is one of the worst disasters in US history

Despite this, there is some good news: the state is requiring Southern California Gas Co. to take new safety precautions that weren’t in place before the leak. For one thing, the utility is required to monitor wells for leaks now. Regulators are capping the production of the field – while it has a capacity of 83 billion cubic feet, it’s only going to be allowed to operate at 29 billion cubic feet going forward, with surface pressures nearly 20 percent less than what the gas company has requested. While reopening the facility still poses risks, it seems the state is doing what it can to reduce them in the future.

Via Los Angeles Times

Images via SoCalGas