Of course, the main influence on streamflow is precipitation runoff in the watershed. Rainfall causes rivers to rise, and a river can even rise if it only rains very far up in the watershed-remember that water that falls in a watershed will eventually drain by the outflow point.
One US gallon of water weighs 133.526464 ounces. The calculations for that answer are below: 1 gallon = 8.345404 pounds 1 pound = 16 ounces 8.345404 X 16 = 133.526464.
A gallon (128 fluid ounces) of water weighs 8.345404 lbs. We can simply divide 128 by 8.345404 to get the number of fluid ounces in a single pound. The answer is then: 15.33778353 fluid ounces of water weighs one pound.