Bakheng Water Treatment Plant Phase 3 reaches 72% completion

The expansion will add 195,000 cubic metres per day

Once commissioned, Phase 3 is expected to lift Bakheng's total production capacity to 585,000 cubic metres a day. Phnom Penh Water Supply Authority's overall production capacity would then rise to around 1.2 million cubic metres per day.

The relevance for Phnom Penh residents is the additional headroom this creates for a growing urban water system. It is a future capacity increase, however, not evidence that water pressure or service has already improved in every neighbourhood or building.

For practical context, see Cambodia market and country comparisons. This development also connects with Phnom Penh selects 466 teachers for public school transfers.

Full operation is expected in the second quarter of 2027

The May inspection put full operation in the second quarter of 2027. Until commissioning, the additional 195,000 cubic metres per day remains planned capacity tied to a construction project still in progress.

For people choosing a home or a long-term rental, the project is useful context about the direction of Phnom Penh's utility infrastructure. Building-level conditions remain separate: local distribution, water pressure, storage tanks and maintenance can still differ substantially even after a major treatment plant comes online.