MWSS PROJECTS

       The Metropolitan Waterworks and Sewerage System (MWSS), created under Republic Act No. 6234, has jurisdiction, supervision and control over all waterworks and sewerage systems in the territory within Metro Manila and some cities/towns in nearby provinces of Cavite and Rizal, for a total service area of 1,940 square kilometers, also to include the province of Bulacan. However, pursuant to Republic Act No. 8041 otherwise known as the “National Water Crisis Act of 1995”, as implemented by Executive Order No. 286 dated December 06, 1995 and Executive Order No. 311 dated March 20, 1996, MWSS entered into an arrangement that resulted in the involvement or participation of the private sector in any or all of the segments, operations and/or facilities of the MWSS. Thus, the operation of the system of waterworks and sewerage services was privatized in August 01, 1997 under a Concession Agreement subdivided into east and west service areas. The east service area was awarded to Manila Water Company Inc. (MWCI) and the west service area was awarded to Maynilad Water Services Inc. (MWSI).

 

       The present source of water supply is the Angat Dam which is a multi-purpose facility, serving (1) water supply for Metro Manila and suburbs, (2) power generation for the NPC, and (3) irrigation systems for NIA. As a water supply source, Angat provides nearly 97% of Metro Manila’s water supply today. In order to supplement the water supply available from the Dam, the Umiray-Angat Transbasin Project (UATP) was then constructed, thus increasing the total water supply capacity to 4,000 million liters per day, broken down as follows:

 

          MWSS Water Rights:

  • Angat Original Allocation
  • Angat Conditional Allocation
  • Umiray – Angat Transbasin Project

=

=

=

22.0 cms

15.0 cms

9.0 cms

 

TOTAL

 

=

 

46.0 cms

or

4,000 MLD

 

       At present, the existing water supply of 4,000 MLD is no longer sufficient to meet the present water demand for Metro Manila estimated at 5,130 MLD, thus the need to find other sources of water.



       In this regard, MWSS has formulated a Development Plan for Future Water Supply Sources for Metro Manila that comprises of the Interim and Long Term Water Source Projects.

 

SUMMARY OF PROJECTS & UPDATES

as of May 7, 2010

 

PROPOSED NEW WATER SOURCES

 

1. 300 MLD Treated Bulk Water Supply Project

 

Project Description

 

·        Involves the supply of treated bulk water for the southern part of Metro Manila

 

Location

 

·        Laguna, Lake

 

Capacity

 

·        300 MLD (3.50 cms)

 

Estimated Project Cost

 

·        Php 5.60 B

 

Status/ Remarks

 

·        Green Square Properties Corporation submitted its Unsolicited Proposal for the 100 MLD of this project and this is still to be opened and evaluated by the Joint Venture Selection Committee.

 

 

2. Sumag River Diversion Project

 

Project Description

 

·        This involves the tapping of the Sumag River in General Nakar, Quezon, originally part of the Umiray-Angat Transbasin Project

 

Location

 

·        General Nakar, Quezon

 

Capacity

 

·        188 MLD (2 cms)

 

Estimated Project Cost

 

·        Php 562 M

 

Status/ Remarks

 

·        This is proposed to be implemented and funded by the Concessionaires through the Common Purpose Facility (CPF) frameworks of the Concession Agreement

 

 

3. Wawa Dam Project

 

Project Description

 

·        Reactivation of existing Wawa Dam intended to serve the towns of Rodriguez and San Mateo

 

Location

 

·        Wawa, Rodriguez, Rizal

 

Capacity

 

·        50 MLD (0.58 cms)

 

Estimated Project Cost

 

·        Php 1.50 B

 

Status/ Remarks

 

·        Water permit issue still to be resolved

 

 

4.  Liaban Dam Project

Project Description

 

·        This involves the construction of a dam utilizing the Kaliwa River in Tanay, Rizal

 

Location

 

·        Liaban, Tanay, Rizal

 

Capacity

 

·        1,900 MLD (22 cms)

 

Estimated Project Cost

 

·        Php 48 B

 

Status/ Remarks

 

·        MWSS and SM Bulk Water Company, Inc. (SMBWCI, a subsidiary of San Miguel Corp.), failed to enter into a Joint Venture Agreement for the implementation of the Project

 

 

5.  Kanan Dam Project

 

Project Description

 

·        This involves the construction of a dam utilizing the Kanan River in General Nakar, Quezon and a transbasin tunnel going to Laiban Dam Reservoir

 

Location

 

·        General Nakar, Quezon

 

Capacity

 

·        3,270 MLD (38 cms)

 

Estimated Project Cost

 

·        US$ 1.20 B

 

Status/ Remarks

 

·        Pre-feasibility study already undertaken

 

 

6.  Agos High Dam

Project Description

 

·        Construction of a high dam at the Agos River immediately downstream of the confluence of Kanan and Kaliwa Rivers

 

Location

 

·        Infanta, Quezon

 

Capacity

 

·        3,000 MLD (35 cms)

 

Estimated Project Cost

 

·        US$ 1.70 B

 

Status/ Remarks

 

·        Pre-feasibility study already undertaken by EDCOP and JICA

 

 

7.   Kaliwa Low Dam Project

 

Project Description

 

·        Construction of a low dam downstream of the proposed site of Laiban dam

 

Location

 

·        Brgy. Daraitan, Tanay, Rizal

 

Capacity

 

·        550 MLD (6 cms)

 

Estimated Project Cost

 

·        US$ 534 M

 

Status/ Remarks

 

·        Feasibility study conducted by Global Utility Development Company (GUDC) and ORIX Corporation as per MOU with MWSS

 

 

8.  Balintingon Multi-Purpose Dam

 

Project Description

 

·        A multi-purpose high-head dam project for power & irrigation purposes

 

Location

 

·        General Tinio, Nueva Ecija

 

Capacity

 

·        1,400 MLD (17 cms)

 

Estimated Project Cost

 

·        Php 20 B

 

Status/ Remarks

 

·        Pre-feasibility study was undertaken by EDCOP as engaged by CalEnergy

 

 

9.  Candaba Water Resource Project

 

Project Description

 

·        1,000 hectare water impounding dam project at the Candaba swamp

 

Location

 

·        Candaba & San Luis, Pampanga

 

Capacity

 

·        1,300 MLD (15 cms)

 

Estimated Project Cost

 

·        Php 10 B

 

Status/ Remarks

 

·        MOA for feasibility study was signed by and among MWSS, Candaba LGU and China Agricultural Machinery Corp. (CAMC)

 

 

10. Apalit-Pampanga River

 

Project Description

 

·        To use the irrigation return flows to and the normal flow available from the Pampanga River, involving among other diversion/ intake structures

 

Location

·        Apalit, Pampanga

 

Capacity

 

·        1,700 MLD (20 cms)

 

Estimated Project Cost

 

·        Php 5 B

 

Status/ Remarks

 

 

11.  Pampanga River Diversion

 

Project Description

 

·        To utilize the normal flow available from the Bagabag River, involving among other diversion/ intake structures

 

Location

 

·        Calumpit, Bulacan (Bagabag River confluence)

 

Capacity

 

·        1,700 MLD (20 cms)

 

Estimated Project Cost

 

·        Php 3 B

 

Status/ Remarks

 

·        None

 

12.  Sierra Madre Water Supply Project

 

Project Description

 

·        To utilize eleven (11) rivers in the foothills of Sierra Madre

 

Location

 

·        Sierra Madre in Quezon and Laguna

 

Capacity

 

·        2,270 MLD (26 cms)

 

Estimated Project Cost

 

·        None

 

Status/ Remarks

 

·        Proposal submitted by Sierra Madre Water Corporation

 

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