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Water Crisis in Puerto Rico

August 8, 2026

Understanding the Causes, Challenges, and Solutions

Puerto Rico is surrounded by the Atlantic Ocean and the Caribbean Sea, yet thousands of residents periodically face water rationing. How can an island with abundant rainfall and hundreds of rivers struggle to provide reliable drinking water? The answer lies in a combination of climate change, aging infrastructure, population growth, and decades of underinvestment.

A Crisis Years in the Making

Water shortages are not new to Puerto Rico. Major droughts have affected the island several times over the past two decades, including severe events in 1994, 2015, 2023, and now 2026.

During periods of prolonged drought, reservoirs that supply drinking water fall below critical operating levels. To conserve the remaining supply, the Puerto Rico Aqueduct and Sewer Authority (AAA) implements rotating water rationing, meaning some neighborhoods receive water only on certain days or during limited hours.

While drought often triggers these restrictions, it is only part of the story.


Why Is Puerto Rico Running Out of Water?

1. Climate Change

Climate scientists have observed longer dry seasons, rising temperatures, and increasingly unpredictable rainfall across the Caribbean.

Higher temperatures cause:

Climate models suggest that droughts in Puerto Rico are expected to become more frequent and more severe over the coming decades.

2. Aging Water Infrastructure

Perhaps the biggest challenge is not the amount of water Puerto Rico receives—but how much is lost before reaching homes.

Much of the island's water system was built decades ago.

Today, aging pipes, broken valves, and deteriorating infrastructure result in significant water losses through leaks before the water ever reaches customers.

Repairing these systems is expensive and often requires replacing underground infrastructure across dozens of municipalities.

3. Dependence on Reservoirs

Most Puerto Ricans receive drinking water from reservoirs.

Some of the most important include:

When rainfall decreases for several months, reservoir levels can fall rapidly, forcing conservation measures.

4. Population Concentration

The San Juan metropolitan area houses nearly half of Puerto Rico's population while relying heavily on a limited number of reservoirs.

During droughts, water demand often exceeds sustainable supply.

5. Increased Demand

Tourism, economic development, agriculture, and population growth in some areas have all increased water demand.

Combined with hotter temperatures, consumption rises precisely when supply is shrinking.

What Happens During Water Rationing?

To preserve remaining water, AAA may:

Residents often store water in containers, cisterns, or rooftop tanks to prepare for interruptions.

Why Doesn't Puerto Rico Just Build More Reservoirs?

Constructing a new reservoir is a decades-long project involving:

Instead, many experts believe repairing the existing system would provide greater benefits than building entirely new reservoirs.

Could Desalination Solve the Problem?

Puerto Rico is an island surrounded by seawater, making desalination an appealing idea.

Advantages

Challenges

While desalination may become part of Puerto Rico's future, it is unlikely to replace reservoirs entirely.

Could FEMA Help?

Yes—but only if certain conditions are met.

The Governor of Puerto Rico can request a federal emergency declaration when local resources become insufficient.

If approved, FEMA could help support:

Other federal agencies, including the EPA, USDA, and U.S. Army Corps of Engineers, can also assist with technical expertise and funding.


Long-Term Solutions

Most experts agree that no single project will solve Puerto Rico's water challenges. Instead, a combination of investments is needed.

Modernize Infrastructure

Replacing aging water mains and reducing leaks could recover millions of gallons of treated water every day.

Expand Water Storage

Improving existing reservoirs and constructing additional storage where appropriate would increase resilience during dry periods.

Diversify Water Sources

Future options include:

Protect Watersheds

Healthy forests help regulate water flow into reservoirs.

Protecting Puerto Rico's watersheds through conservation and reforestation helps maintain long-term water quality and supply.

Encourage Conservation

Simple actions make a difference:


Looking Ahead

Puerto Rico's water crisis is not simply the result of one dry season. It reflects decades of aging infrastructure, changing climate patterns, increasing demand, and the challenges of maintaining a complex water system on a mountainous tropical island.

The good news is that solutions exist. Investments in modern infrastructure, conservation, watershed protection, diversified water sources, and climate resilience can greatly reduce future shortages.

As Puerto Rico continues adapting to a changing climate, ensuring a reliable water supply will remain one of the island's most important priorities—not only for residents, but also for businesses, agriculture, tourism, and future generations.

Need Help or Want to Support Puerto Rico?

If you are affected by water rationing or would like to support relief efforts, the following organizations provide emergency assistance, information, and resources.

Puerto Rico Aqueduct and Sewer Authority (AAA / PRASA)

Purpose: Water outages, rationing schedules, emergency water trucks, service interruptions, and reporting water leaks.

Puerto Rico Bureau for Emergency Management and Disaster Administration (NMEAD)

Purpose: Coordinates emergency response, disaster preparedness, shelters, and public safety operations across Puerto Rico.

Federal Emergency Management Agency (FEMA)

Purpose: Provides federal disaster assistance when a Presidential Emergency or Major Disaster Declaration has been approved.

At this time, FEMA has not announced a disaster assistance program for Puerto Rico's current drought. Assistance would require a federal emergency declaration.

American Red Cross – Puerto Rico Chapter

Purpose: Disaster relief, emergency shelters, preparedness information, volunteer opportunities, and community support.

United Way Puerto Rico

Purpose: Supports community organizations, volunteer programs, disaster response, and long-term recovery efforts.

USDA Disaster Assistance Programs

Purpose: Emergency assistance and financial programs for farmers, ranchers, and agricultural producers affected by drought.

U.S. Environmental Protection Agency (EPA)

Purpose: Drinking water standards, water quality information, and infrastructure assistance programs.

Important Note

If you are experiencing a prolonged water outage, first contact the Puerto Rico Aqueduct and Sewer Authority (AAA). If the situation threatens your health or safety, contact your local municipal emergency management office or the Puerto Rico Bureau for Emergency Management and Disaster Administration (NMEAD).

If a federal emergency declaration is approved, FEMA will announce eligibility requirements and assistance programs through its official website and media channels.



Did You Know?

While Flan is Puerto Rico's most famous everyday dessert, Tembleque and Arroz con Dulce are closely associated with the island's Christmas celebrations and are enjoyed by generations of Puerto Rican families.