M ore than nine years after the Aliso Canyon underground natural gas storage facility in the San Fernando Valley became the site of the largest methane leak in U.S. history, a state commission on ...

The 2015 Aliso Canyon gas leak, which took four months to control, released more than 120,000 metric tons of methane and other gases into the atmosphere over communities in the San Fernando Valley.

When the Aliso Canyon gas leak threatened the health of the community in Porter Ranch, children were moved to other schools in Northridge, away from the affected areas. This occurred after the ...