SoCalGas crews and technical experts attempted to safely stop the flow of natural gas leaking from a storage well at the utility's Aliso Canyon facility near Northridge section of Los Angeles on Nov. 3. The escape of tons of natural gas from under a Los Angeles neighborhood is taking months to stop because of pressure from the leak. LOS ANGELES The escape of tons of natural gas from storage under a Los Angeles neighborhood is not likely to be fixed for at least another two months due to the specific dynamics of the leak, according to officials.