Key witness to toxic gas at Aliso Canyon expected to tell her story after months of SoCal Gas’ efforts to block testimony

After nearly three years since the largest gas blowout in U.S.history, residents of Porter Ranch still worry whether their health will be compromised five, 10 or 20 years down the road after breathing in not just methane gas, but an array of toxic, often cancer-causing chemicals spewed from an underground gas storage facility in and around their suburban neighborhood.

A key part of their quest is finding out what caused their nosebleeds, headaches, nausea and a few cases of cancer. One answer may lie in the amount of benzene, formaldehyde, arsenic and hydrogen sulfide that accompanied a four-month, uncontrolled natural gas leak from Oct. 23, 2015 until Feb. 2016.

But so far, that information has been hard to come by. Until Wednesday, July 25 when a key witness is expected to testify at a morning hearing on the chemicals released during the natural gas leak.

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