A Los Cabos city councilman has gone on record accusing Mexico’s federal water authority of worsening the Los Cabos water crisis by shutting down municipal wells without providing alternatives for hundreds of families. Celestino Atienzo, a member of the conservative PAN party on the Los Cabos city council, called the closures bureaucratic and disconnected from reality. He demanded CONAGUA, Mexico’s national water commission, reverse the shutdowns and fast-track desalination as a long-term fix.
The public rebuke, issued on April 10, marks a political escalation in a water emergency that has been building for months across the municipality’s colonias, or residential neighborhoods. Atienzo’s statement turns what had been a rolling infrastructure crisis into a formal intergovernmental confrontation.
Federal Well Closures Left Colonias Without Alternatives
The dispute centers on CONAGUA’s authority over groundwater. In Mexico, the federal government controls water concessions and can shut down wells it deems illegal or overdrawn. OOMSAPAS, the Los Cabos municipal water utility (Organismo Operador Municipal del Sistema de Agua Potable, Alcantarillado y Saneamiento), operates the local distribution system but depends on federally permitted wells for supply.
When CONAGUA closes a well, the local utility loses a source. Yet OOMSAPAS has no power to reopen it or drill a replacement without federal approval. That structural mismatch is at the core of the current crisis. CONAGUA shut wells in the municipality citing regulatory enforcement, but Atienzo argued the closures came with no emergency plan to replace the lost water volume.
The aquifer beneath the San José del Cabo basin has been declining for years. A 2023 CONAGUA technical bulletin classified it as overexploited, meaning withdrawals exceed natural recharge. Population growth in Los Cabos has compounded the problem. The municipality grew from roughly 238,000 residents in the 2010 census to more than 351,000 in the 2020 count, a 47% jump in a decade. Tourism adds tens of thousands of daily users on top of that permanent population.
Water trucking, known locally as pipas, has become a stopgap in affected neighborhoods. Earlier this year, independent water truckers publicly demanded CONAGUA reopen closed wells so they could refill their trucks and continue delivering to colonias cut off from piped service. The truckers’ protest highlighted a grim reality: parts of Los Cabos now depend on private water deliveries rather than municipal infrastructure.
Colonias on the northern and western edges of San José del Cabo, including areas near the Cerro del Vigía hills, have experienced the most severe shortages. Some neighborhoods in Cabo San Lucas, particularly newer developments built above the capacity of existing water mains, also face intermittent service. OOMSAPAS has rotated supply through tandeo, a scheduled rationing system that delivers water to different zones on alternating days.
Atienzo Cited San Diego and Israel as Desalination Models
Atienzo proposed that Los Cabos adopt seawater desalination, advanced wastewater treatment, and water recycling. He pointed to Israel, Perth, and San Diego as cities that have reduced dependence on stressed aquifers through desalination plants.
The comparison is not abstract. San Diego’s Claude “Bud” Lewis Carlsbad Desalination Plant, which opened in 2015, produces roughly 50 million gallons of drinking water per day and supplies about 10% of the San Diego County Water Authority’s total demand. Israel now desalinates approximately 80% of its domestic water. Perth, Australia, relies on two desalination facilities for nearly half its supply.
Los Cabos has discussed desalination before. In 2019, state officials announced plans for a desalination plant near San José del Cabo, but the project stalled amid funding disputes and environmental review delays. A smaller private desalination facility serves some hotel developments along the tourist corridor between Cabo San Lucas and San José del Cabo, but it does not feed the municipal system.
Building a municipal-scale desalination plant would require coordination between OOMSAPAS, the Baja California Sur state government, CONAGUA, and likely private investors. Cost estimates for plants comparable to Carlsbad run into the hundreds of millions of dollars. Energy costs are also significant: desalination is energy-intensive, and Los Cabos relies on CFE, Mexico’s federal electric utility, which has limited generation capacity in the southern Baja peninsula.
Atienzo also demanded the city, state, and federal governments establish a formal coordination mechanism to avoid the current dysfunction, where one level of government closes wells and another scrambles to find replacement supply.
Rationing Affects Hotels, Residential Communities, and Daily Life
The practical effects of the crisis extend across Los Cabos. Hotels along the tourist corridor generally maintain private water storage through tinacos (rooftop tanks) and cisternas (underground cisterns), but extended shortages strain even those reserves. Residential communities, particularly those outside gated developments with private wells, face unpredictable delivery schedules under the tandeo rationing system.
Residents who rely on OOMSAPAS service should confirm their neighborhood’s rationing schedule, which the utility posts on its social media channels. Keeping cisterns full and maintaining a reserve supply of bottled water for drinking remains standard advice during shortages. Private pipa deliveries typically cost between 800 and 1,500 pesos ($44 to $82 USD) per truckload, depending on volume and distance.
The Los Cabos city council is expected to take up water infrastructure proposals in upcoming sessions. Atienzo called for an immediate review of all well closure orders and faster permitting for emergency infrastructure projects. The story was first reported by Colectivo Pericu.