Saudi Arabia's National Water Company (NWC) undertook the enormous project of developing 43 wells and 46 water purification stations in 27 separate locations to provide sustainable potable water systems near Riyadh.
At each of the 43 developed well sites, drills bore down up to 2,000 m to sub groundwater, pumped it to the surface, cooled it through cooling towers, then treated it through reverse osmosis plants before storing the potable water in tanks and distributing it through the existing water network. Significant amounts of storage were required for the drilled and treated potable water created.
Selected to provide durable storage tanks, CST Storage provided 17 Aquastore glass-fused-to-steel coated modular tanks from its DeKalb, Illinois facility. In addition, CST Covers in Rincon and Conroe, Texas, were used to manufacture 17 aluminium geodesic domes to cover the tanks. The CST Storage tanks were identical in size, storing 5,000 m3 with dimensions of 31.5 m diameter and 6.9 m height. Altogether, CST Storage tanks and CST Covers domes today provide protected storage for 85,000 m3 of potable water in Riyadh. Respected Saudi contractors, SSEM and NESMA, oversaw the acquisition and installation of the storage tanks and covers for the NWC.
Site worked crews up to 16 hours per day and construction of the tanks and covers was completed within 60 days of the material arriving on site. Once construction was completed, water fill tests were performed on all the CST tanks and covers. www.cstindustries.com
Prestressed concrete tanks
