How can the US build a more equitable water future? 

As the United States passes a tipping point in water security, new research revealed that millions of Americans now face a growing crisis in accessing clean, affordable water.


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The findings, published in PLOS Water and PLOS One, were produced by a multi-university team co-led by Dr Wendy Jepson, professor of geography and director of environmental programmes at Texas A&M University, US.

“Our research shows water insecurity in the US is not just a problem of pipes and infrastructure; it’s a human issue that affects health, daily life and dignity,” Jepson said, adding: “Even in the wealthiest country, millions face challenges getting safe and affordable water, often without anyone realising it.”

The research team called on utility industries, public agencies and policymakers to recognise the scope of the crisis and reform water management approaches. "Our goal was to bring water insecurity out of the shadows so decision-makers could build equitable, sustainable water systems for all Americans," Jepson added.

The team emphasised that addressing the water crisis requires more than fixing pipes; it demands that policies treat water as a basic human need and that they prioritise the needs of those most affected.

The triple threat behind the water crisis

The studies outlined how a ‘triple threat’ of degrading infrastructure, accelerating climate change and sluggish or inadequate policy responses have pushed the US past a critical point of clean and clear access to water, what the researchers call ‘peak water security’.

This triple threat disproportionately affects low-income households and historically marginalised communities, which face higher rates of water contamination, shutoffs and exclusion from infrastructure improvements.

“We know water insecurity exists in the US,” said Dr Amber Pearson, co-author and associate professor at Michigan State University, US, adding: “But we’ve lacked the right tools to measure it.”

To measure and track the crisis, the researchers introduced a new tool: the Household Water Insecurity Experiences (HWISE), a survey-based measurement originally created for lower-income countries but scaled to the US context.

The tool uses data from more than 1,000 households in over 15 at-risk communities across 2,770 Americans. Using the tool, the researchers are evaluating how well it predicts real-world outcomes and metrics such as reliance on bottled water and stress related to water access.

While the study is ongoing, the researchers believe the tool will have major implications for targeted infrastructural investments, integrated public health efforts and strategies aimed at closing the water equity gap.

“This scale will help us understand the real, everyday struggles families face and guide more fair policies and investments,” Pearson concluded.

DOI: 10.1371/journal.pwat.0000413