Yangon Faces Groundwater Crisis as City Begins to Sink

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Myanmar’s largest city is quietly sliding into peril. Beneath the bustle of Yangon’s streets, decades of unchecked groundwater extraction are causing the ground to sink—threatening homes, infrastructure, and water security for over five million residents.

Experts warn that land subsidence, saltwater intrusion, and deteriorating water quality are now widespread. “About 60 percent of Yangon’s groundwater is already saline,” says veteran hydrologist U Myint Thein, who helped draft a long-stalled groundwater law. Without regulation, he cautions, Yangon risks following Bangkok and Jakarta—cities that suffered severe subsidence due to over-pumping.

The city’s public water system covers only a fraction of demand, forcing households, businesses, and factories to drill private wells. In industrial zones like Hlaing Tharyar, deep boreholes are common. Even luxury condominiums bypass municipal oversight, worsening the strain on aquifers.

As extraction outpaces natural recharge, the water table drops. Residents report wells running dry and water tasting rusty, oily, or brackish. “Five years ago, our water wasn’t salty. Now it is,” said a Lanmadaw local. In Thaketa, some households rely on lake water delivered by cart.

Saltwater intrusion is creeping inland from the Yangon River, a marine estuary. Once contaminated, aquifers may never recover. A 2022 study in Myaynigone documented visible ground-level reduction and building settlement. Similar signs have emerged across the city, from North Dagon to Kyimyindaing.

Efforts to regulate groundwater were underway before the 2021 coup, with the NLD government drafting a law requiring permits, inspections, and pumping limits. But the coup froze progress, and research has since stalled. “In the past five years, I doubt there has been any serious study,” said geologist Dr Myo Thant.

Neighbouring countries like Thailand and India have long enforced groundwater laws. Bangkok, after decades of damage, imposed extraction taxes and banned new wells. Yangon, experts say, is ignoring the same warning signs.

With population pressures rising and aquifers nearing collapse, the message is stark: regulate now—or risk irreversible damage. As U Myint Thein puts it, “Value water—before it is gone.”

-2025-10-29