World's longest desalinated water pipeline begins operating in Morocco
Morocco’s OCP Green Water (OGW), a subsidiary of OCP Group, has put its J2K pipeline into service two years ahead of schedule, the company announced. The J2K pipeline supplies the world’s largest phosphate mine with desalinated water. Its capacity also enables coverage of Khouribga’s potable water needs.
OCP Group's operations at the Benguerir mine have simultaneously become fully water-autonomous, enabled by the transport of treated wastewater from the Marrakech treatment plant since June 15, 2025.
OCP Group’s objective of achieving non-conventional water autonomy has been met two years ahead of the initial 2027 deadline.
About the J2K Pipeline
Stretching over 124 mi (200 km), the pipeline is supplied by a new desalination unit built on the Jorf Lasfar industrial platform, specifically dedicated to meeting the water needs of Khouribga. It enables the transfer of up to 80 million m3 of desalinated water per year. OGW remarked that it is the first infrastructure of its kind in Morocco capable of transporting desalinated water over such a long distance.
OGW also announced this week the commissioning of the pipeline supplying the Gantour mining site with treated wastewater transferred from the Marrakech wastewater treatment plant (STEP). This strategic project was completed in under one year, a record timeframe, through close collaboration with the Ministry of the Interior and the Regional Water Utility (SRM) of the Marrakech–Safi region.
The treated water is transported over a distance of more than 49 mi (80 km) to the Gantour site, which is now fully autonomous in non-conventional water. With these achievements, OCP Group has reached its target of complete autonomy in non-conventional water by 2025, two years ahead of the original 2027 goal, through a combination of desalination projects, wastewater treatment, and hydraulic transfers.
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