Two groups are eyeing to pre-qualify and bid for the P18.72 Billion New Centennial Water Source (NCWS) – Kaliwa Dam Project of Metropolitan Waterworks and Sewerage System (MWSS) under the Public-Private Partnership (PPP) Program.

Prospective bidders that submitted pre-qualification documents are Datem-Abeima Consortium and San Miguel Holdings Corporation.

The NCWS project involves the financing, design, and construction of an additional raw water supply source with a design capacity of 600 MLD, through the commissioning of the Kaliwa Dam, including intake facilities and other pertinent facilities. Also part of the project is a water conveyance system with a design capacity of 2,400 MLD, in anticipation of additional inflows from Laiban Dam which is upstream of the Kaliwa Dam.

Under a Build-and-Transfer contractual arrangement the government will pay the private partner with fixed annual amortization over 25 years.

The private partner will be responsible for the financing, detailed design and construction of the Kaliwa Dam, the intake facilities, other pertinent facilities and a water conveyance tunnel.

The PPP bidding will be conducted in accordance with Republic Act 7718 or the Amended Philippine BOT Law and its Implementing Rules and Regulations.

MWSS expects to announce the pre-qualified bidders in November 2015.

The project aims to ensure long term water security in Metro Manila and nearby provinces by increasing raw water supply to meet future potable water demand. It will also address the need for an additional water supply source, reducing dependency on the Angat Dam reservoir.