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1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsChip factories need large, reliable supplies of highly purified water, but whether that demand strains water supplies depends on the local watershed, infrastructure and competing users. Chipmakers can recycle water and develop reclaimed-water supplies; those measures reduce pressure only when they are operating and their performance is measured in context.
Why chip factories need so much clean water
Semiconductor manufacturing uses water at multiple stages, including cleaning silicon wafers. Samsung explains that wafer cleaning is a major use of ultrapure water: even minute impurities can affect production and chip quality. That makes water quality and dependable delivery part of the manufacturing challenge, not just the volume a facility takes in. Samsung’s semiconductor explainer describes the process and reuse approaches; the page notes it was no longer available as of July 31, 2025.
Ultrapure water is treated to meet stringent cleanliness requirements. A fab therefore depends on both a source of water and the systems that can treat it to the quality its processes require. Reuse can help, but recycled water must still be treated appropriately for its intended use.
There is no reliable single “water per chip” number
Water figures are meaningful only when their definitions and boundaries are clear. Withdrawal is water taken from a source; consumption is the portion not returned to the same source in a usable condition within the relevant timeframe. Recycled water and water savings are separate measures, and neither alone establishes a facility’s net effect on a watershed.
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For example, Taiwan Semiconductor Manufacturing Company (TSMC) reported consuming 161.0 liters per 12-inch wafer equivalent product unit in 2024, an 8.7% decrease from 2023. That is TSMC’s company-reported intensity measure—not a per-chip figure or a universal industry average. The company also reported 284.6 million cubic meters recycled through its recovery systems and an additional 5.54 million cubic meters in water savings in 2024. These reported totals describe the company’s measures; they do not by themselves show the net impact on local water supplies. See TSMC’s 2024 Sustainability Report.
Without comparable reporting periods, facility boundaries, water categories and production units, these figures cannot support a fair ranking of manufacturers or a global estimate of water use per chip.
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When chip expansion can intensify water competition
Water risk is geographically specific. A new or expanding fab may draw on a watershed already serving households, farms, industry and ecosystems; the same nominal demand can have different consequences in a water-abundant area and in a stressed one. Treatment capacity, pipelines, storage and the reliability of alternative supplies also affect whether water can reach a site when it is needed.
TSMC identifies drought, water shortages and government conservation measures as potential risks to operations and expansion plans. Its annual report describes a possible business-continuity threat, not evidence that every TSMC facility is currently short of water or has suffered an interruption. The company says its mitigations include conservation, alternative sources, monitoring and stress testing. Read the risk disclosure in TSMC’s annual reports.
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To assess a particular fab or proposed project, ask:
- Which watershed and water infrastructure supply the site, and how available are they during dry periods?
- Does a reported number refer to withdrawal, consumption, discharge, recycled water or reclaimed supply?
- What facilities, time period and production scope does the figure cover?
- How much water is reused on site, and how much comes from an external reclaimed-water system?
- Is an alternative supply already operating, being built or only planned?
- What are the water needs of local residents, agriculture, other industries and ecosystems?
- Is the claim a measured result, a target, a forecast or a disclosed risk scenario?
The U.S. Geological Survey’s National Water Availability Assessment offers a way to examine water quantity, quality and use alongside modeled supply and demand. Its analysis covers U.S. water years 2010–2020; it provides national availability context, not a forecast of fab demand or a globally comparable factory-by-factory assessment. USGS National Water Availability Assessment.
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Can chipmakers recycle the water they use?
Yes. Manufacturers can recover process water, treat it and reuse it, while reclaimed wastewater can provide another source. Reuse may reduce demand on conventional freshwater supplies, but it does not automatically eliminate local water competition: the relevant questions include how much is recovered, what treatment is required, where the supply comes from and whether the system is operating reliably.
Samsung announced an agreement on December 11, 2024, for a project intended to regenerate sewage water from Hwaseong and Osan and supply 120,000 tons of reclaimed water per day to its Giheung and Hwaseong semiconductor sites. Samsung said supply was scheduled to begin in 2029. This is a planned volume and start date, not evidence that the water was already being delivered. The announcement also states a goal of reducing water withdrawals. Samsung’s project announcement.
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Compare that future project carefully with TSMC’s reported 2024 recycling totals: one is a planned daily reclaimed-water supply for named sites, while the other is a company-reported annual volume recycled through recovery systems. They are different measures and cannot be treated as directly comparable proof of watershed benefit.
What the evidence says about the coming “race for water”
Growing semiconductor capacity can increase competition for water where local supplies, treatment systems or delivery infrastructure are constrained. But a shortage is not an inevitable consequence of every new fab, and company conservation targets or reuse plans are not proof that constraints have been solved. The soundest assessment is site-specific: consider the watershed, competing needs, water quality, facility withdrawals and consumption, reuse performance, and whether alternative supplies are actually available.
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