The subject of this tender is the laying of pipes by open cut trenches as per tender documents and bill of quantities to cater for the continuous increase in demand of potable water in the Northern and Central regions of Malta inclusive, but not exclusive, of: Cirkewwa - Qali specifically Wied Musa – Open Cut Trenches o Potable Water Works -Installation ONLY of potable water ductile iron mains 150mm, 350mm and 600mm. o Open Cut Trenches All ductile iron mains and fittings, all polyethylene pipes and fittings and manhole covers and surface boxes are to be supplied by the Water Services Corporation.