Cool! Check this out…

The following is a list of the first two rivers by outflow and the Mississippi in acre-foot:

River	Outflow (ac-ft/s)
Amazon	181.6
Ganges–Brahmaputra–Meghna	35.6
Mississippi	17.3

Crazy that the top is over 5 times more than the next one 😮. The largest outflow in North America and the one I’ve seen in person is the Mississippi, which is only 9.5% the outflow of the Amazon. The Amazon is over 10 times more than the Mississippi, which I thought was humongous in person 😮.

On to sewers, which is what one of the uses for the acre-foot according to your quote. The following is a list wastewater generated by location:

Location	Generation (ac-ft/s)
Asia	5,073.6
NA & Europe	2,124.6
All 3 Continents	7,198.2

So the outflow of the Mississippi alone is greater than twice the wastewater of Asia, North America, and Europe combined 😮!

My math may need to be checked 😬