Laying of 560mm dia.HDPE/500mm dia.DI Wastewater Pumping Main from MLP1 to Sea Outfall at Wellawatte Connection Enhancement of Dehiwala/ Mt. Lavinia Sewerage Scheme - Greater Colombo Water Reclamation Division Contract No: NWSDB/GCWR/CEP-WR/CPA7-06/GOSL/2024/04