The leak was a wake-up call. Too few people had recognized the tremendous risks of Aliso Canyon —that an aging facility operating under grossly outdated and inadequate standards could wreak havoc on public health and the environment. About 80% of the facility’s wells were built before the 1970s, and Southern California Gas knew they were corroding and failing at an increasing rate. But there were no rules mandating frequent inspections or upgrades. What’s more, government officials didn’t seem sufficiently concerned that the state’s energy supply had become so heavily dependent on Aliso Canyon.