The Tennessee state vocational/technical school where I taught auto mechanics for several years had a gravel-filled sump about 10 X 20 feet 10 feet deep with a small shed built over it where they disposed of drain oil. When it finally got so saturated it wouldn't accept any more they finally fixed it- - - -with a 6" thick concrete slab poured on top! A couple of disgruntled students tried to report that to the EPA, but the director of the school called in a few favors and the investigation just quietly went away!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!