"Ten years ago this week, (Oct. 23, 2015) the largest U.S. methane leak was discovered at Aliso Canyon in northwestern Los Angeles County. It focused attention on the state's aging gas wells. The well that leaked was one of 115 connected to a subsurface storage reservoir in the Aliso Canyon gas field. The field has been used for natural gas storage since 1973 and is the second-largest facility of its kind in the U.S., capable of holding up to 86 billion cubic feet."
"8,000: Approximate number of home evacuations 112: Days between reporting of gas leak and stoppage 109,000 metric tons: Estimated amount of methane leaked. Considered an environmental disaster due to toxic nature of gas. The fallout Notable events following the leakFeb. 8, 2016: Southern California Gas Co. agrees to pay $8.5 million to settle a lawsuit filed by air quality regulators in 2016."
A massive methane leak at Aliso Canyon was discovered Oct. 23, 2015, at a storage field in northwestern Los Angeles County. The leaking well was one of 115 wells tied to a subsurface reservoir that has stored gas since 1973 and can hold up to 86 billion cubic feet. The leak forced about 8,000 home evacuations and lasted 112 days, releasing an estimated 109,000 metric tons of methane and creating an environmental and health crisis. Subsequent fallout included regulatory settlements, health monitoring by local physicians, safety concerns about well integrity near faults, legal challenges, and approved resumption of limited injections after safety measures.
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