Officials are on scene of a hazardous situation in the Buckeye area.
The incident is happening at Fertizona near State Route 85 and Baseline Road.
Phoenix fire said they have evacuated the business due to an odor of ammonia.
A Environmental Protection Agency spokesperson said the ammonia-like odor stemmed from an equipment malfunction near the Fertizona property.
However, according to the Arizona Department of Environmental Quality, the smell may have been caused by 10,000 gallons of standing water near the site.
It's not immediately clear what caused the water to smell like ammonia.
No injuries have been reported but an investigation is ongoing.
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