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Sioux Falls

Sioux Falls activates upgraded Well 25 on north side of city

The newly rebuilt well adds more than 5 million gallons a day to city's water system

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Alex Olsen
Jun 11, 2026
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The inner workings of the new Well 25. (Sioux Falls Live photo)

Sioux Falls has placed its newly reconstructed Well 25 into service, restoring a key groundwater source and expanding the city’s drinking water capacity.

The new Well 25 replaces a 1952-era well at the same north-side site near the Big Sioux River that served Sioux Falls for more than 70 years. According to city officials, the reconstructed well adds more than 5 million gallons of daily capacity to the system and can produce as much as 7 million gallons per day during peak demand.

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