For example we've all read that it takes a little over a gallon to grow an almond. And it takes about 10 gallons to make one integrated circuit.
But that almond does not contain a gallon of water. The almond only contains about 0.0003 gallons of water.
And my computer, which contains dozen of integrated circuits, certainly does not actually contain hundreds of gallons of water.
So could we put almond farms and semiconductor fabs next to each other and arrange that much of the 0.9997 gallons that does not go into the almond is available to the semiconductor fab? (Or maybe the other way around--start with the fab and then do the almonds?)
And could we put some other agricultural or manufacturer after all that, and so on?
Some of these uses might contaminate the water so some cleanup might be needed before it could be used downstream, but there are a lot of agricultural and industrial processes that need water with varying requirements as to how clean it needs to be so it seems plausible that there should be some combinations that would work well together.