- What it measures
- Design capacity of treated water in Omrania's description; not current output
- Date
- Jun 2025
- Source
- OmraniaJun 2025
How much water does the park treat?
Is it 192,000, 150,000 or 50,000 m³ a day?
What each source says
- What it measures
- Figure quoted by Gerber's team, polished to near drinking quality; a throughput, not a plant rating
- Date
- Dec 2025
- What it measures
- MEED, 30 Sep 2026: a plant operating temporarily; about 26% of the 192,000 design figure
- Date
- Sep 2026
- Source
- MEEDSep 2026
- What it measures
- Component of the March 2024 MEED water package, from a summary of a paywalled article
- Date
- Mar 2024
- Source
- MEEDMar 2024
Why the figures differ
These are three different measures. 192,000 m³ a day is the design capacity of the Water Treatment Complex, according to its designer Omrania. About 150,000 m³ a day is the treated wastewater volume Gerber describes, polished close to drinking quality. About 50,000 m³ a day is what MEED reported on 30 September 2026 for the plant now operating temporarily, which is about 26% of 192,000 and 33% of 150,000 (our arithmetic). A March 2024 MEED summary lists separate plant components too, including 160,000 m³ a day of treated sewage effluent, but that comes from a summary of a paywalled article and is worth checking.
What we show
All three values on the Water Treatment Complex page, each labelled as design capacity, treated volume or current temporary output. They are not shown as a conflict.
What would resolve it
Resolved as three measures. A single operating figure will be added once the permanent plant is running and the Foundation publishes it.
More figures explained
How big is King Salman Park?
Why do sources give the park's area as anything from 16.6 to 17.2 km²?
What does King Salman Park cost?
Is it $23bn, SAR72bn, $10bn, $25bn or $9bn?
How much private money is involved?
Is private investment SAR50bn, SAR150bn or $13bn, and how much is awarded?
How many investment packages are there?
Five committed, or one awarded?
How tall is the Museum of World Cultures?
Is the museum building 106 m or 110 m?
How many seats does the National Theatre have?
Is it 2,300 or 2,500?