Qatar's public works authority Ashghal has begun work on the second phase of the $251 million Mesaimeer Pump Station and Outfall Tunnel project, aimed at providing a sustainable solution to discharge surface and storm water. The scope of work includes the construction of a pumping station at the end of Mesaimeer Tunnel, south of Hamad International Airport, besides 10 pumps and auxiliary facilities. The project also includes the construction of a 10km-long outfall tunnel with a diameter of 3.7m. Upon completion the station will pump water from Mesaimeer Tunnel to the new outfall tunnel with an operating capacity of 19.7 cubic meters per second. The project is designed to ensure the preservation of the marine environment, with water being discharged 10km off-shore. The project is scheduled to be completed in the fourth quarter of 2021. In 2017, the project won the global best project award in the wastewater category, during the Engineering News Record (ENR) Global Best Projects Awards in New York City, in the presence of a group of the largest international companies executing global construction projects.