We measure the water rather than quote a number
Abu Dhabi is on desalinated supply, so the same physics applies as in Dubai — soft, low-TDS, weakly buffered water that is more likely to attack pipework than to scale it. But TAQA Distribution does not publish a delivered hardness or TDS figure the way DEWA does, so we will not print one. On Abu Dhabi projects — and particularly on island sites such as Saadiyat, Yas and Al Reem, where coastal exposure adds its own corrosion duty on outdoor cabins and plant — we take a sample from the actual supply and specify against the result, not against a regional assumption.
Sources: Abu Dhabi Media Office announcement of the TAQA Distribution brand (16 September 2024, effective January 2025); Abu Dhabi Civil Defence Authority; Department of Municipalities and Transport, Abu Dhabi Capital Development Code (September 2022); ASHRAE Handbook—Fundamentals, Climatic Design Conditions (2021 ed.), Abu Dhabi Intl, WMO 412170. Where a figure is not published by the responsible body, we say so instead of estimating.