Governor Víctor Manuel Castro Cosío inaugurated a new desalination plant in Punta Alta, a small coastal community in the municipality of La Paz that faces Isla San José in the Gulf of California. The plant, which cost 5.39 million pesos (about $270,000 USD), can produce 15 cubic meters of potable water per day from seawater.
The facility directly benefits 11 families living in Punta Alta, a remote settlement that has historically lacked reliable access to fresh water. Castro Cosío said water is an indispensable resource for community life and development, calling the plant a sustainable alternative for supply in the area.
Off-Grid Design for an Isolated Coast
Because Punta Alta sits far from municipal infrastructure, the desalination complex was built to operate independently. It includes its own electric generator, an operations booth, a water-jug filling station, and a beach well that draws seawater for processing.
The project was funded through the federal FISE social infrastructure fund and coordinated by two state agencies: the Comisión Estatal del Agua (CEA), the state water commission, and the Secretaría de Desarrollo Social, the social development ministry. The design serves as a model for off-grid water access in isolated Gulf-side settlements.
Water Scarcity Across Baja California Sur
Fresh water remains one of the most pressing challenges in Baja California Sur, which receives an average of just 160 millimeters of rain per year. That figure is roughly one-fifth of the national average. La Paz, the state capital, has struggled for years with overtapped aquifers and aging distribution systems. Los Cabos relies on a larger private desalination operation to supplement its supply.
While major urban desalination projects draw the most attention, small plants like the one in Punta Alta address a different gap. Dozens of fishing and ranching communities along the Gulf coast have no connection to piped water systems. For those settlements, compact desalination units paired with solar or diesel generators are often the only viable option.
The Punta Alta plant’s 15 cubic meters of daily output is modest by industrial standards but sufficient for the community’s immediate household needs. At roughly 1,360 liters per family per day, it covers drinking, cooking, and basic sanitation.
The inauguration was first reported by the Baja California Sur state government on June 20.