Degremont Al Ansari JV received a contract from Haya Water to construct the Amerat Sewage Treatment Plant (STP) in the Sultanate of Oman. The proposed site is located within a wadi alignment, so water flow needed to be diverted away from the site to make space to construct the STP and avoid the risk of flooding.

Degremont Al Ansari JV appointed KEO to investigate the wadi catchment, the resulting flow and suitability of the diverted wadi alignment, its dimensions and slopes, in order to determine the effectiveness of the suggested design of the wadi diversion, and to minimize any negative impact and risk of flooding.