# AOC Exposes Data Centres' Impact on US Drinking Water In a stunning congressional hearing, US Congresswoman Alexandria Ocasio-Cortez (AOC) has revealed a critical environmental issue that should alarm communities across the UK. ## The Issue: Toxic Chemicals in Drinking Water During a hearing with the EPA Administrator, AOC held up a mason jar containing brownish liquid, saying it showed how data centre operations can contaminate drinking water supplies. She pressed the agency on what the contamination means for communities downstream. **What AOC revealed:** - Data centres use massive amounts of water for cooling - This water becomes contaminated with toxic chemicals - Contaminated water is often discharged back into local water supplies - Communities downstream are unknowingly consuming polluted water ## Why This Matters for the UK While the UK has focused on data centres' impact on electricity grids and land use, this US case highlights a critical blind spot: **water contamination**. **The UK connection:** - Many US data centre companies are expanding rapidly in the UK - The same cooling technologies and chemical treatments are being used - UK environmental regulations may not be as strict as US standards - Communities in areas like Thames Valley, Manchester, and Glasgow could face similar risks ## What Communities Should Demand This US case provides a crucial warning for UK communities facing data centre proposals: 1. **Demand full environmental impact assessments** — including water quality testing 2. **Ask about cooling systems** — what chemicals are used, how is wastewater treated 3. **Insist on independent monitoring** of local water sources before, during, and after construction 4. **Question the long-term legacy** of these facilities on local water supplies ## The Bigger Picture Data centres are often promoted as "clean" digital infrastructure. But as this US case shows, the environmental impact extends far beyond electricity consumption. The hidden costs include: - Water pollution from cooling chemicals - Thermal pollution of rivers and lakes - Long-term contamination of groundwater supplies - Health risks for communities downstream ## What's Next Data Centre Truth will be monitoring this issue closely and providing updates on any similar cases emerging in the UK. We'll also be working with environmental groups to ensure communities have the information they need to protect their water supplies. --- *This article is based on information presented by US Congresswoman Alexandria Ocasio-Cortez during a congressional hearing with the EPA Administrator. Data Centre Truth is monitoring the implications for UK communities.*