Lake Zakher
United Arab Emirates
Lake Zakher (Buḥayrat Zākhir) is a man-made lake in Al Ain, Abu Dhabi, the UAE. An unintended byproduct of the UAE’s desalination-linked water management practices, the lake was created from treated waste water that was released onto land. It raised groundwater levels and eventually resulted in the development of a lake.
Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).