New Water Sources Projects of the Metropolitan Waterworks and Sewerage System (MWSS)
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New Water Sources Projects of the Metropolitan Waterworks and Sewerage System (MWSS) Mr. Ramon B. Alikpala Chairman, Board Of Trustees Metropolitan Waterworks and Sewerage System (MWSS) MWSS Priorities For The Next Six (6) Years Development of New Water Sources Development of Replacement Source for Irrigation Development of New Water Sources: Angat Dam - the only present source of water supply for the MWSS service area serving a total of 13 million population out of the total service population of 15 million, or only 87% total service coverage. Angat Dam provides a supply volume of 4,000 million liters per day (4,000 mld) out of the present demand of 4,395 mld, or a deficit of 395 mld. By 2015, the projected demand is expected to reach 5,054 mld, thus requiring the development of supplementary sources of water to address the increasing demand. Supply ––DemandDemand Projection Supply Demand Deficit Year Supply Source (mld) (mld) (mld) 2009 4,000 Angat Dam = 4000mld 2010 4,100 4,395 295 + Laguna Lake = 100mld 2011 4,250 4,532 282 + Laguna Lake = 150mld + Laguna Lake = 150mld 2012 4,600 4,605 5 + Sumag River = 200mld 2015 4,600 5,054 454 2020 4,600 5,680 1,080 NOTE: Laguna Lake and Sumag River will be implemented by the MWSS’ ConcessConcessionaiionairesres Development of New Water Sources: Based on the Supply-Demand Projection, potential new water sources were identified to fill the gap starting 2015 (these are enumerated in the succeeding slides) MWSS will hire consultant: - to validate water demand study, - to undertake the necessary updating, comparative evaluation and prioritization of the various new water sources identified, in order to come up with a new road map; - to prepare the first priority project biddable by 2012. POTENTIAL NEW WATER SOURCES PROJECTS Potential Project Project Description Supply Cost Status/Remarks Volume (Estimate) 1) Kaliwa Low Dam Project Construction of a low dam • Pre-Feasibility study of this (height=30m) and appurtenant US$ 510 M Project was completed in structures such as conveyance 550 MLD 2003. tunnels/pipelines and treatment plant (PhP 23 B) Location: Kaliwa River, Barangay Daraitan, Tanay, Rizal • Feasibility Study and Detailed 2) Laiban Dam Project Design of this Project was Construction of a 113-meters high completed & updated in 2007; rockfill dam and other appurtenant • About 4,000 Affected Families structures such as conveyance US$ 1.45 B 1,900 MLD in 8 barangays will be tunnels/pipelines, treatment plant & (PhP 65 B) resettled; reservoirs. • New Environmental Location: Kaliwa River, Brgy. Laiban, Compliance Certificate (ECC) Tanay, Rizal is in process. MLD = million liters per day; US$1.00 = PhP45.00 POTENTIAL NEW WATER SOURCES PROJECTS Supply Project Project Description Status/Remarks Volume Cost 3) Kanan Dam Project • Pre-Feasibility study of this Project was Construction of a dam and a completed in 2003. transbasin tunnel to the US$ 1.30 B 3,270 MLD • May be considered as Laiban Dam reservoir (PhP 60 B) a next stage Location: Kanan River development after the General Nakar, Quezon Laiban Dam Project MLD = million liters per day US$1.00 = PhP45.00 POTENTIAL NEW WATER SOURCES PROJECTS Supply Project Project Description Status/Remarks Volume Cost • Feasibility study 7 Rivers of Laguna 300 MLD+ N/A unavailable US$ 100 M • Feasibility study Wawa River 50 MLD (PhP 4.5 B) completed in 2006 • Feasibility study Laguna Lake 500 MLD N/A unavailable MLD = million liters per day US$1.00 = PhP45.00 Project Location Angat Reservoir 13km transbasin tunnel ANGAT DAM Kanan Dam Laiban Dam Kaliwa Low Dam Development of Replacement Source for Irrigation: Angat Dam is a multi-purpose facility serving domestic water supply, power supply and irrigation water. MWSS’ present water allocation in the Angat Reservoir: Original Allocation = 22.0 cms Conditional Allocation from Irrigation water rights = 15.0 cms Umiray-Angat Transbasin Tunnel = 9.0 cms TOTAL = 46.0 cms or 4,000 mld cms = cubic meters per second mld = million liters per day Development of Replacement Source for Irrigation: In 1988, the National Water Resources Board (NWRB) granted a conditional allocation of 15 cubic meter per second (15cms) to MWSS out of the unutilized allocation of the National Irrigation Administration (NIA) irrigation requirement; MWSS is proposing to develop an alternative source to replace/substitute the 15cms of NIA’s allocation from Angat Reservoir. cms = cubic meters per second Alternative Sources To Replace The 15 CMS Conditional Allocation Potential Project Project Description Supply Cost Volume (Estimate) 1) Apalit-Pampanga River Construction of a diversion/intake structures to utilize the irrigation return flows and the US$ 110 M 20 CMS normal flow available from the Pampanga (PhP 5 B) River Location: Apalit, Pampanga 2) Pampanga River Diversion Construction of a diversion/intake structures US$ 110 M to utilize the normal flow available from the 20 CMS Bagabag River (PhP 5 B) Location: Calumpit, Bulacan CMS = cubic meters per second , US$1.00 = PhP45.00 Alternative Sources To Replace The 15 CMS Conditional Allocation Supply Project Project Description Volume Cost 3) Candaba Water Resource Project A 1,000 hectares water impounding US$ 220 M 15 CMS dam project at the Candaba Swamp (PhP10 B) Location: Candaba, Pampanga 4) Balintingon Multi-Purpose Dam Project A multi-purpose high-head dam US$ 440 M 17 CMS project by NIA intended for power and (PhP20 B) irrigation Location: General Tinio, Nueva Ecija CMS = cubic meters per second US$1.00 = PhP45.00 Development of Replacement Source for Irrigation: Technical Working Group (TWG) composed of MWSS, NIA and the Concessionaires (Maynilad and Manila Water) is preparing a Memorandum of Understanding (MOU) for the joint undertaking of the Project (re: 15 CMS Water Source Development Project ); The TWG will hire consultant: - to evaluate the most viable and best alternative replacement source; - to prepare the selected source biddable by 2012. CMS = cubic meters per second THANK YOU….