Water Unit Equivalents Table


Abbreviations:
c.f.s. = cubic feet of water per second
g.p.m. = gallons of water per minute

A.F. = acre feet of water
(An acre foot covers one acre of land one foot deep)

 

One acre-foot is approximately enough water to supply two families of four for one year --  this equates to thirteen tank railcars.

Train engine with 13 tank cars

 

Unit 1 equals Unit 2 equals Unit 3
1 cubic foot 7.48 gallons of water 62.4 pounds of water
1 A.F. 43,560 cubic feet of water 325,851 gallons of water
 
Unit 1 equals Unit 2
1 c.f.s. 448.8 gpm
1 c.f.s. 50 South Dakota miner's inches
1 c.f.s. 646,272 gallons per day
1 c.f.s. for 24 hours 1.98 A.F.
1c.f.s. for 30 days 59.5 A.F.
1 c.f.s. for 1 year 724 A.F.
1 million gallons of water 3.07 A.F.
1 million gallons per day 1,122 A.F. per year
1,000 g.p.m. 2.23 c.f.s.
1,000 g.p.m. 4.42 A.F. per day