This won't likely be resolved quickly.

According to a water pollution scientist my wife works with, the pollution is poised to run thru the whole system from beginning to end and pollute the pipes for future water delivery and destroy the sewage plant function too.

I don't know if it is something that can be cleaned up or if they will have to replace the entire water delivery and sewage systems. It is an emulsified petroleum- IE doesn't separate from the water, kind of like using mustard in your salad dressing to help mix the oil and vinegar.

In the meantime it may mean not only having to import freshwater to drink, but to flush too.

-Just read more, sounds like it was about 24 gallons of stuff. Hopefully that small amount can be flushed thru without too much harm.