October 23 is tenth anniversary of the Aliso Canyon natural gas leak at Southern California Gas Co.’s underground gas storage facility near the top of Oat Mountain in the Santa Susana Mountains.

How will residents, school employees, business owners and workers who were in Porter Ranch at the time mark the infamous blowout?

SoCalGas employees on Oct. 23, 2015, discovered a methane leak rising from a 8,750-foot deep well, named Standard Sesnon 25, or SS 25 for short, that had been installed in 1953. The natural gas well was converted in 1973 to a natural gas storage.

Company spokesman Javier Mendoza said in an email days after the leak that, “SoCalGas and other experts expect it may take several days or longer to identify the safest and best solution to stop and repair the leak. The repai

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