Micron Technology is making a massive $50 billion investment to expand its semiconductor manufacturing in Boise, Idaho, planning two new fabrication facilities. This expansion, however, is causing significant concern among residents and regulators due to the company’s escalating water demands in an already water-stressed region.
Micron’s existing factory in Boise already consumes a staggering 4.7 million gallons of water daily. The first new fab alone will push this daily usage to 10.2 million gallons, enough to fill roughly 15.5 Olympic-sized swimming pools every single day. The second, slightly smaller facility will add even more to this immense demand, but its specific water needs remain unknown to the public and regulators.
The company currently pulls water from three sources: its own groundwater wells, the Nampa Meridian Irrigation District (which draws from the Boise River), and treated water purchased from Veolia, a private utility. Despite the significant increase in projected water use, Micron has refused to provide clear answers on where it will source the additional billions of liters needed for its expansion.
A 2024 environmental impact statement for the first new fab revealed it would use 5.5 million gallons daily and discharge about 2.9 million gallons back into the system. However, Micron has not filed a similar study for the second facility, leaving everyone in the dark about its total future water footprint.
Micron has promised to achieve a 75% global water conservation rate by 2030 through recycling. Yet, the company has not explained how this target applies to the new Boise fabs or specifically where the vast amounts of new water will come from. Veolia, the private utility, also declined to answer questions about the volume of water it supplies to Micron.
Boise is located in the high desert of Southwest Idaho, where water is a precious and contested resource. In the 1990s, Micron faced public outcry when its operations caused a severe drop in local groundwater levels, prompting the state to establish a groundwater management area around the company. Even today, the Idaho Department of Water Resources can only get a partial picture of Micron’s total water use.
Local residents and farmers depend on the same aquifers that Micron pumps from. Any significant drop in water levels would severely impact homes, farms, and businesses across the region. Micron’s lack of transparency about its water sourcing for this expansion is a huge gamble with a resource the desert cannot easily replace.
The expansion is fueled by the growing demand for AI technology, but while AI doesn’t run on water, people and crops certainly do. If the wells go dry, the community has no backup plan. Micron’s silence creates serious concerns for Idaho’s future.
