Ensenada’s municipal water utility loses four out of every ten liters it pumps before the water ever reaches a paying customer. CESPE, the city’s water and sewer commission (Comisión Estatal de Servicios Públicos de Ensenada), reported that 40% of its supply disappears to leaking pipes, illegal taps, and broken meters. The figure puts the city well above Mexico’s national average for water loss and raises questions about infrastructure spending in one of Baja California’s fastest-growing coastal cities.
Ensenada’s Pipes Lose More Water Than the National Average
Mexico’s national water commission, CONAGUA, has previously estimated that Mexican cities lose roughly 30% to 35% of their potable water to what engineers call “non-revenue water.” That category covers physical leaks from aging pipes, unauthorized connections, and metering errors that let consumption go unrecorded. Ensenada’s 40% rate exceeds even that high national baseline.
The problem is not new. CESPE has operated under financial strain for years, juggling the cost of pumping water from distant sources against a rate structure that does not cover full operating expenses. Ensenada draws much of its supply from the Guadalupe Valley aquifer and the Emilio López Zamora dam, both of which face pressure from drought and agricultural demand. Every liter lost to a cracked pipe is a liter that had to be pumped, treated, and pressurized at full cost, with no revenue to show for it.
Illegal connections, known locally as “tomas clandestinas,” account for a meaningful share of the loss. These unauthorized taps are common in informal settlements on Ensenada’s periphery, where colonias have grown faster than the utility’s ability to extend legal service. But they also appear in established neighborhoods, where property owners bypass meters to avoid bills.
CESPE’s general director, Alejandro Corella, has acknowledged the scope of the problem publicly. The utility has begun a diagnostic campaign to identify the worst sections of its distribution network. Crews are using pressure monitoring and flow analysis to locate leaks in underground mains, some of which date back decades. Corella stated that the utility plans to prioritize repairs in zones where the gap between water pumped and water billed is largest.
Aging Infrastructure Stretches From Centro to the Tourist Corridor
Ensenada’s water distribution network spans roughly 1,200 kilometers of pipe serving more than 120,000 residential and commercial accounts. Some of the oldest sections run beneath the city’s downtown core and the Zona Centro, where pipes installed in the 1970s and 1980s have exceeded their expected service life. Corrosion, ground shifting, and seismic activity in the region all accelerate deterioration.
The losses hit hardest during summer, when Ensenada’s population swells with visitors and seasonal residents. Neighborhoods along the tourist corridor, including Zona Playitas and parts of El Sauzal, have experienced low pressure and intermittent service during peak months. When 40% of supply never reaches its destination, the margin between adequate service and rationing shrinks considerably.
Property owners in Ensenada pay water rates that CESPE has raised several times over the past three years, most recently in early 2024. Those rate increases were justified partly by the need to fund infrastructure repairs. Yet the 40% loss figure suggests that much of the additional revenue has not yet translated into measurable improvements in delivery efficiency.
The financial math is stark. If CESPE could reduce losses from 40% to even 30%, the recovered water would be enough to supply thousands of additional households without pumping a single extra liter. That would ease pressure on the Guadalupe Valley aquifer, reduce electricity costs for pumping, and potentially delay the need for politically unpopular rate hikes.
Repair Campaign Targets Worst Pipe Sections First
CESPE’s current plan focuses on sectorizing the network, a technique that divides the distribution system into isolated zones where flow can be measured precisely. By comparing input and output for each sector, engineers can identify which neighborhoods are losing the most water. The utility has begun installing flow meters at key junction points to support this effort.
Corella said the utility is also expanding its program to detect and disconnect illegal taps. CESPE has legal authority to cut unauthorized connections, though enforcement has historically been uneven. The campaign will run in coordination with municipal inspectors.
Ensenada’s next scheduled infrastructure review is set for the third quarter of 2025, when CESPE will present updated loss figures to the city’s oversight board. The original reporting on the 40% loss rate was published by Punto Norte.