This article in the JG tells it all:
Of special note is this excerpt from the above JG article:
"Library officials first learned of the leak a few weeks ago when the diesel fuel in an 800-gallon storage tank was gone. Officials weren’t sure whether the tank had a leak or someone had siphoned the fuel from it. More fuel was put into the tank so the level could be monitored, Krull said.
But the fuel began to disappear again, so the library called an environmental consulting company. It confirmed a leak in an underground pipe connecting a smaller feeder tank to a backup generator, which provides electricity to run emergency lights throughout the building. Both the small tank and the generator are in the same room, and the large tank is in a separate room, Krull said."
I have one major problem with this:
800 gallons of fuel oil are missing. They are not sure if it leaked or was stolen. This kind of thing happens, it is not a big deal. The problem is that ACPL put more fuel in the tank and then it leaked out again. That is stupid. Fill the tank with water!. Do not waste fuel and do not put more fuel into the spill area. Good grief.
A little common sense can go a long ways...