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.
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| 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 |



