Just before the building explodes, Wells tells Chuck that DC United doesn't check gas leaks, the fire dept does. If you smell gas you don't call the fire department. You call the gas company and they come out and check for and find the gas leak. And ( if it's on the gas company side of the meter) the gas company fixes the leak or hires a contractor to fix the leak.
This episode takes place in March 2016.
Brooke Mathison was born in Seoul, South Korea on February 22, 1977.