Water as a Productive Asset: Mexico's Only Viable Path

Mexico closed 2025 with a record US$40 billion in foreign direct investment. The nearshoring narrative is working. But CEPAL has issued a clear warning: Growth is being blocked by critical infrastructure bottlenecks, primarily electricity and water. The OECD calculates Mexico's water stress level at nearly 45%, almost double the OECD average. Conagua projects that by 2030, available supply will cover only 75% of national demand.

These are not future scenarios. They are present-day operating conditions for every plant, hotel, food producer, and industrial park competing for the next wave of investment.

The question is not whether water is a problem. It is whether Mexico will treat it as a constraint to manage, or as an asset to engineer.

Four cases from outside Mexico suggest the second path is not only viable. It is already working.

Peru: Desert Into Export Machine

In the 1990s, the coastal desert of Peru — one of the most arid strips on the planet — was considered agriculturally worthless. Today, regions like Ica and Piura are global supply hubs for blueberries, grapes, asparagus, and avocados, shipping to the United States, Europe, and China.

The transformation was not public infrastructure. It was private investment in point-of-use water technology: drip irrigation, aquifer management, and on-site treatment systems that made the desert productive without waiting for the state to solve the water problem.

Between 2010 and 2024, Peru's agricultural exports grew at an average annual rate of 11%, reaching US$9.185 billion from a sector that barely existed three decades ago. Agricultural exports represented 4.6% of Peru's GDP in 2024, up from just 1.3% in 2020.

The lesson is not about irrigation. It is about decision architecture. When private operators stopped waiting for public water systems and built their own treatment infrastructure at the point of use, an entire export economy emerged from sand.

The zone had no water, but with water it became very fertile land as one researcher summarized it. Mexico's north has the same logic waiting to be activated, with one critical advantage: proximity to the largest consumer market in the world.

Israel: The national model for water independence

Israel's transformation from chronic water scarcity to water exporter is well documented, but the operational detail matters more than the headline.

More than 70% of Israel's drinking water now comes from desalinated seawater. And close to 90% of its wastewater is treated and reused, primarily in agriculture, but also in industrial processes and municipal irrigation. That 90% reuse figure is a world record.

The critical insight is sequencing. When Israel began its water reform, the rule was clear: desalination could not begin until network losses dropped below 15%. Today those losses are under 10%. First, efficiency. Then, new supply. That discipline is precisely what Mexico's industrial operators need to apply at the plant level.

The agricultural irrigation revolution Israel pioneered — drip irrigation, fertirrigation, computerized monitoring and satellite systems — reduced water consumption per unit of agricultural output even as productivity increased year over year. 

The Israeli model is not a technology story. It is a governance and decision story. Water is treated as a national strategic asset, with pricing, regulation, and investment aligned to that logic. The technology followed. Mexico's industrial operators cannot wait for national governance to catch up. But they can apply the same logic at the facility level: measure losses, reduce waste, then invest in new sources.

Fernando de Noronha, Brazil: Modular desalination as economic enabler

Fernando de Noronha is a UNESCO World Heritage archipelago 545km off Brazil's coast. No rivers. No natural freshwater sources. For decades, the island operated under permanent water rationing, which directly constrained tourism — its only economic engine.

Through the installation of a modular reverse osmosis desalination system, the island broke with decades of rationing dependency. The end of rationing correlated with a nearly 70% jump in tourism revenue. Hotels, restaurants, and public services could finally operate with reliable supply guarantees.

The system was recognized as the largest public desalination plant for human supply in Brazil, following a BRL 22 million investment that ended water rationing for the local population. 

The Fernando de Noronha case is relevant for Mexico not because of its scale — it is a small island — but because of its architecture. The modular, containerized design allowed transport and installation with minimal ecosystem impact, with the flexibility to adjust production according to seasonal demand fluctuations.  That modularity is exactly what industrial parks, resort corridors, and agro-export zones in Baja California, Sonora, and the Yucatan Peninsula need: decentralized, scalable, point-of-use water infrastructure that does not depend on a national grid that does not exist.

Chile: Industrial desalination as competitive infrastructure

Chile's north is one of the driest regions on Earth. It is also home to the world's largest copper deposits and a growing lithium industry. The tension between those two facts produced a clear policy response.

Chile now has 28 desalination plants in operation or construction, concentrated primarily in the Atacama and Antofagasta regions. The mining sector alone accounts for nine operating plants, with 15 more projected by 2028. 

The Atacama case in Caldera is particularly instructive: the plant was designed as shared infrastructure — mining companies, the city of Caldera, agricultural users, and irrigation systems all receive water from the same facility, priced by contracted capacity. That multipurpose model turns desalination from a corporate cost center into regional productive infrastructure.

Chile just approved a national desalination law on March 26, creating a specific desalination concession framework, binding technical reports from the water authority, and a National Desalination Strategy to guide deployment under public criteria rather than isolated project logic. 

The Chilean signal for Mexico is regulatory: decentralized water infrastructure at industrial scale requires a legal framework to unlock private investment. Mexico's new General Water Law, currently in legislative discussion, is the equivalent moment.

Implications for Mexico's Nearshoring Corridor

Mexico has 11,122km of coastline. It has the driest industrial corridors in Latin America — Sonora, Chihuahua, Baja California, the Bajio — sitting next to the most dynamic nearshoring investment flow in the hemisphere.

Water for industrial use can and must come from circular economy schemes, avoiding competition with human consumption. That is not a sustainability slogan. It is an operational requirement for the next generation of manufacturing investment.

The four cases above share a common architecture: decentralized treatment at the point of use or production, funded by private investment or public-private partnerships, governed by clear regulation, and measured by output — liters produced, costs reduced, operations enabled.

None of them waited for a national water crisis to be solved before acting. They engineered around it.

Mexico's industrial operators face the same choice. The technology exists. The coastline exists. The investment appetite exists. What is missing is the decision to treat water as productive infrastructure — not a utility problem — and build accordingly.

The companies that make that decision in the next 24 months will not only reduce operating costs and meet ESG commitments. They will have a structural competitive advantage over every facility that waits for the public system to catch up.

The public system will not catch up in time.

Lucas Barrionuevo is co-founder and CEO of Somos PURA, a B Corp-certified water purification and treatment company with operations across Mexico and Latin America.