Approximately 1-gallon (yes, one) of diesel leaked from a local
waterfront tank over the weekend.

Several government agencies responded to clean it up. $$$$$$

Check this video:

http://cgvi.uscg.mil/media/main.php?g2_itemId=199961

The last section of it shows a guy with an optical measuring and
scanning device, sampling treads on the ladder up the side of a fuel
tank. He says he is looking for any trace of petroleum on the steps,
and that if any trace of petroleum product is found the clean up crew
will then be required to wear full haz-mat suits to work in the area.

It's great that the oil got cleaned up, but my gosh that's a lot of
fuss over a very small amount.