Irrigation Well vs. Livestock Well: Different Designs for Different Jobs
Both are agricultural wells, but they're engineered very differently. An irrigation well is sized for short, very high-volume bursts to feed pivots or flood checks. A livestock well is sized for steady, modest flow into troughs and tanks. Mixing the two up wastes money or starves the operation.
Comparison Table
| Attribute | Irrigation Well | Livestock Well |
|---|
| Primary load | Pivot, wheel line, flood, drip | Stock tanks, automatic waterers |
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| Typical sustained yield | 200 - 1,500+ GPM | 5 - 25 GPM |
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| Typical depth | 300 - 1,000 ft | 150 - 600 ft |
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| Casing diameter | 10 - 16 in | 6 - 8 in |
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| Pump HP | 20 - 150+ HP | 1 - 5 HP |
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| Power | Three-phase, often 480V | Single-phase or solar |
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| Storage | Direct-to-pivot, often no storage | Stock tank or cistern |
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| Permitted volume | 3 - 5 ac-ft/acre/yr | 0.028 ac-ft/animal-unit/yr (Utah baseline) |
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| Cost range | $60,000 - $175,000+ | $15,000 - $40,000 |
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How to Decide
- Pick Irrigation Well: You're feeding a pivot, wheel line, or flood-irrigated acreage where peak GPM matters more than total daily volume.
- Pick Livestock Well: You're watering cattle, sheep, or other livestock and total daily volume matters more than peak rate.
- Pick Either: Some ranches drill one larger well to do both — the math depends on herd size, irrigated acres, and electrical service. Talk to a driller before committing.
Frequently Asked Questions
Can a livestock well also feed a pivot?
Only if it can sustain pivot GPM — most livestock wells cannot. Mismatched pumps burn out fast.
Do livestock wells need a water right?
Yes. Stockwatering uses are commonly handled through small-scale appropriations or change applications. The Utah Division of Water Rights publishes standard duty figures per animal unit.
Can solar power a livestock well?
Often yes — small single-phase or DC submersibles work well on solar arrays in remote ranch settings.