The Municipal Water, Sewerage and Sanitation System Operating Agency (OOMSAPAS) is urging residents in La Paz, Cabo San Lucas, and San José del Cabo to conserve drinking water as summer demand climbs across Baja California Sur.
OOMSAPAS Director Abimael Ibarra warned that seasonal power outages can temporarily shut down the wells, pumps, and booster stations that supply homes throughout the region. When electricity goes out, water pressure drops or service stops entirely until power is restored.
Power Outages Threaten Water Supply
“When power outages occur due to causes beyond our control, some areas of Baja California Sur may experience delays in water service or reduced water pressure while service is being restored,” Ibarra said. He added that operational crews are prepared to restart hydraulic infrastructure the moment electrical service returns.
The goal, according to Ibarra, is to bring water service back to normal as quickly as possible and minimize the impact on residents. Still, the agency acknowledged that certain neighborhoods are more vulnerable than others.
Hillside and End-of-Line Neighborhoods Most at Risk
Homes in hillside areas and at the end of distribution lines are historically the first to lose water pressure during outages. OOMSAPAS recommends that residents in those zones keep storage tanks and emergency reserves topped off throughout the summer months.
Ibarra urged all residents to check household plumbing for leaks, reuse water whenever possible, and limit high-consumption activities such as filling pools or heavy landscape irrigation.
A Peninsula Under Water Stress
The conservation call comes as Baja California Sur faces broader water challenges. The state is one of the fastest-growing regions in northwestern Mexico, with La Paz and Los Cabos experiencing rapid population growth driven by tourism, migration, and real estate development. Less than 25% of residential and commercial buildings in La Paz have water meters, according to data from the environmental research group TOSEA, giving many occupants little economic incentive to reduce consumption.
Saltwater intrusion into coastal aquifers, reduced groundwater recharge, and extended drought cycles have compounded the strain on the peninsula’s limited freshwater supply. A February 2026 report by Yale Climate Connections described Baja California Sur as “an extreme snapshot of a globally intensifying aridification crisis.”
For residents with private wells or rooftop storage systems (tinacos), the agency’s advice is straightforward: fill reserves now, fix leaks promptly, and cut discretionary water use until the hottest weeks pass. The announcement was first reported by the Gringo Gazette.