# Water supply disruptions in Mexico

> Developing situation record from CLSTR: https://clstr.news/situations/water-supply-disruptions-in-mexico
> Updated: 2026-10-29T02:01:14.000Z. Sources: 4. Developments: 2.

Electrical failures and technical issues have caused water supply disruptions across multiple Mexican regions. In mid-October, Piedras Negras experienced low water pressure for over 4,000 users due to a Federal Electricity Commission failure, while Oaxaca de Juárez worked to normalize supply following repairs to a pumping tank.

By late October, severe electrical outages caused by storms and technical failures impacted Mazatlán and Mérida. In Mazatlán, heavy rains affected pumping systems and water treatment plants, leading to shortages in 12 rural communities. In Mérida, a power failure disabled a water treatment plant, threatening more than 40 neighborhoods with low pressure or total service interruptions.

## Timeline

### 2026-10-29: Electrical outages disrupt water supplies in Mazatlán and Mérida

Electrical failures in Mazatlán and Mérida have disrupted water treatment and pumping, affecting dozens of communities and neighborhoods in Sinaloa and Yucatán.

4 sources. https://clstr.news/cluster/electrical-outages-disrupt-water-supplies-in-mazatln-and-mrida

### 2026-10-14: Water supply disruptions reported in Piedras Negras and Oaxaca

Water supply issues caused by electrical failures have affected over 4,000 users in Piedras Negras, while service is normalizing in northern Oaxaca following repairs to pumping infrastructure.

8 sources. https://clstr.news/cluster/water-supply-disruptions-reported-in-piedras-negras-and-oaxaca

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Cite as: Water supply disruptions in Mexico. CLSTR, https://clstr.news/situations/water-supply-disruptions-in-mexico