What we heard
Word travels fast in The Woodlands. And the word, delivered with complete confidence at a backyard gathering last week, was this: the cartel controls the aquifer.
Specifically, someone's brother-in-law had it on good authority that a syndicate out of Monterrey had quietly taken control of the groundwater source feeding the Topo Chico spring. The bottles weren't missing. They were being held. A ransom situation. Texas was going to have to negotiate.
We took notes. We did not commit to believing any of it. But we did start asking questions.
What is actually happening
Here is what we found, and it is genuinely strange enough on its own.
Topo Chico has been bottled from the same spring at the base of Cerro del Topo Chico, a small mountain in an industrial district of Monterrey, since the 1890s. That is not a typo. The same source for over 130 years. In 2017, Coca-Cola acquired the brand from Mexican bottler Arca Continental for roughly 220 million dollars, seeing it as a premium sparkling water play with enormous upside, especially in Texas, where about 70 percent of U.S. sales were already concentrated.
In early 2026, Coca-Cola quietly informed distributors that the classic glass-bottled Topo Chico Mineral Water was "temporarily unavailable" in the U.S. The official reason: facility upgrades and "problems with the wells in Monterrey," including what the company described as "quality issues related to the source's geology." Production has slowed significantly over recent months while Coca-Cola stabilizes the wells and upgrades the plant.
Only the classic mineral water and its citrus variants in glass bottles are affected. Topo Chico Sabores and the canned hard seltzer line remain on shelves. Small comfort.
Coca-Cola says the mineral water should return "later this year," with internal communications pointing to a likely restart around Q3 2026. Some reporting frames the timeline more conservatively as "by the end of 2026." Nobody is committing to a date you can put on a calendar.
The part where the cartel theory almost works
Here is where we have to give the conspiracy theorists partial credit. Something is genuinely wrong with the water in Monterrey, and it has been for a while.
Nuevo Leon sits in one of Mexico's driest basins. In 2022, the region endured its worst modern water crisis on record: the Cerro Prieto reservoir fell to roughly half a percent of capacity, dams and aquifers hit historic lows, and millions of residents went days without reliable tap water. During that crisis, the Topo Chico plant became a free water point for surrounding neighborhoods, with locals lining up to fill jugs from an outdoor tap on the facility grounds.
By late 2024, roughly three-quarters of Mexico was experiencing some level of drought, with northern states among the most water-stressed. A technical profile of Monterrey's water utility notes the region has been under drought conditions since approximately 2015.
Coca-Cola has not publicly connected the current shutdown to regional drought. Their stated reason is geological quality at the source wells, not volume. But prolonged stress on an aquifer can change its chemistry. Whether that is what happened here has not been confirmed by any independent technical report.
What it is not
For the record: there is no evidence of new tariffs, customs crackdowns, or cross-border freight disruptions contributing to the shortage. Every credible report traces the supply gap directly to the Monterrey source. The U.S.-Mexico tariff noise that has been circulating in 2025 and 2026 is real, but it has not touched bottled water. The cartel, as far as we can determine, does not control the aquifer.
We are a little disappointed about that last part.
Where this leaves us
A 130-year-old spring under a mountain in Monterrey is having geological problems. A multinational corporation that paid 220 million dollars for the brand is now doing emergency upgrades to wells that probably should have been upgraded years ago. And The Woodlands, which consumes Topo Chico at a pace that should probably concern someone, is left rationing whatever bottles remain on HEB's back shelves.
Next issue: HEB knew. Or at least, that is the theory. We are looking into it.
