Domestic Wastewater Management in Mega Manila: Partnership in Action
Total Page:16
File Type:pdf, Size:1020Kb
Domestic Wastewater Management in Mega Manila: Partnership in Action Leonor C. Cleo fas Deputy Administrator Metropolitan Waterworks and Sewerage System Securing the Future Today The MWSS Privatization On August 01, 1997, the operation of Metro Manila’s waterworks and sewerage system was privatized under a Concession Agreement for 25 years. The entire service area was divided into east and west service areas with specific targets for water supply, sewerage & sanitation. Assets still belong to MWSS. Objectives Transfer financial burden to the private sector Improve service standards Increase operational efficiency Minimize tariff impact 2 1 MWSS Service Area As of December 2010 West Zone East Zone Maynilad Manila Water Land Area 540 1,400 (sq. km.) 17 cities/ 23 cities/ Service Area Municipalities Municipalities Total 8.40 M 6.80 M Population Population 7.40 M 5.90 M • The world’s largest water Served Raw Water 2,400 mld 1,600 mld concession arrangement Allocati on covering 1,940 sq. km and % Water Supply 88% 87% serving 15.8 million people Coverage (2011) % Sewerage 8% 23% Coverage Securing the Future Today Outline Conditions Prior to PPP Evolution of Service Coverage Strategies Addressing Challenges Progress 4 2 Outline Conditions Prior to PPP Evolution of Service Coverage Strategies Addressing Challenges Progress 5 1997 Situation Angat <8% Sewer Coverage Dam La Mesa Dam Minimal Septage Treatment San Juan River Marikina River No septage treatment plant and no approved sludge disposal site Manila Bay Pasig River Laguna Lake 6 3 Outline Conditions Prior to PPP Evolution of Service Coverage Strategies Addressing Challenges Progress 7 Water Supply Coverage 20000 15000 10000ation ‘000 5000 Popul 0 1997 2011 20000 20000 ‘000 000 ‘ 15000‘ 10000 10000 5000 Population Population 0 0 1997 2011 1997 2011 Sewer Coverage Septage Management Coverage 4 Outline Conditions Prior to PPP Evolution of Service Coverage Strategies Addressing Challenges Progress 9 The Approach 1997 Concession Agreement Vision: Centralized STPs and Dedicated Sewer Systems Huge Investment = Higher Tariff Significant Construction Impact Customer Resistance (Water as a Priority) Difficulty in Securing Land DtlidDecentralized UdUpgrade of EitiExisting CSTs Septage Management Combined Sewer‐Drainage Systems 10 5 Key Strategies Upgrade of Communal Septage Combined Sewer‐ Septic Tanks (CSTs) Management Drainage System Convert existing CSTs to StiSeptic TkTank DldiDesludging For areas served by decentralized STPs every 3‐5 years individual septic tanks and Utilize pre‐existing Septic tank sludge sent to with no existing sewer dedicated (separate) sewer treatment facilities network networks 11 Key Strategies Upgrade of Communal Septage Combined Sewer‐ Septic Tanks (CSTs) Management Drainage System Convert existing CSTs to StiSeptic TkTank DldiDesludging For areas served by decentralized STPs every 3‐5 years individual septic tanks and Utilize pre‐existing Septic tank sludge sent to with no existing sewer dedicated (separate) sewer treatment facilities network networks 12 6 Communal Septic Tank Issues Operational Inefficiency Lack of maintenance Outlets not working Illegal structures built on top 13 Communal Septic Tanks 14 7 Community STPs 15 Key Strategies Upgrade of Communal Septage Combined Sewer‐ Septic Tanks (CSTs) Management Drainage System Convert existing CSTs to Free StiSeptic TkTank DldiDesludging For areas served by decentralized STPs every 3‐5 years individual septic tanks and Utilize pre‐existing Septic tank sludge sent to with no existing sewer dedicated (separate) sewer treatment facilities network networks 16 8 Septage Management 17 Key Strategies Upgrade of Communal Septage Combined Sewer‐ Septic Tanks (CSTs) Management Drainage System Convert existing CSTs to Free StiSeptic TkTank DldiDesludging For areas served by decentralized STPs every 3‐5 years individual septic tanks and Utilize pre‐existing Septic tank sludge sent to with no existing sewer dedicated (separate) sewer treatment facilities network networks 18 9 Combined Sewer‐Drainage Systems 19 Outline Conditions Prior to PPP Evolution of Service Coverage Strategies Addressing Challenges Progress 20 10 Main Challenges Land Availability Stakeholder Endorsement Cooperation with Government Agencies Social Acceptability Operational Challenges 21 Land Availability Scarcity of larg e av ailable spaces High cost of land Feasible locations for STPs mostly occupied by informal settlers or privately owned 22 11 Challenges ● Solid Waste & Drainage Maintenance ♦ Drainage systems are clogged with solid wastes ♦ Indiscriminate dumping of solid wastes in canals, creeks, river systems ♦ Wastewater utility should not be the solid waste manager Technology Options that will give a smaller footprints 23 Challenges ● MWSS/Concessionaires need to comply with the Clean Water Act and to comply with the decision of the Supreme Court in the clean up and rehabilitation of Manila Bay ♦ Concessionaires shall implement the MWSS Master Plan to broaden and fast track the sewerage and sanitation services ♦ Implementation of a combined system for areas where separate system is not doable ♦ Due to land constraints, different technology options are being considered that will result in a smaller footprints ♦ Coordinated advocacies and policies towards behavioral changes on dumping of solid wastes 24 12 Outline Conditions Prior to PPP Evolution of Service Coverage Strategies Addressing Challenges Progress 25 Wastewater Facility Overview YEAR 1997 2011 Sewage Treatment 441 Plan ts Capacity 53,150 CMD 585,994 CMD Septage Management 03 Facilities Capacity 0 1,951 CMD 26 13 Scaling Up Sanitation and Sewerage • The 25 year Concession Agreement was extended by another 15 years (to 2037) with the condition to accelerate and double the investment for sewerage and sanitation and to support the development of new water sources. 2018 2037 14% 30% 66% 100% 30% 45% 63% 100% 2008‐2012 2013‐2016 2017‐2021 2022‐2037 TOTAL Maynilad US$ 113 MUS$ 411 MUS$ 604 MUS$ 622 MUS$ 1.75 B Manila Water US$ 295 MUS$ 680 MUS$ 164 MUS$ 481 MUS$ 1.62 B 27 SALAMAT THANK YOU 28 14 Stakeholder Endorsement Public Consultations Support from LGUs and other stakeholders 29 Social Acceptability Low willingness to Pay • Comprehensive Tariff Structure Lack of Public Information and • Strengthen Media Relationships Awareness 30 15 Operational Challenges Lack of expertise Cross‐functional Testing and TiiTraining Program Commissioning Strategies 31 Accomplishment: Septage Management 900,000 Households Served 852,848 800,000 826,870 700,000 722, 608 600,000 500,000 455,413 400,000 300,000 267,178 200,000 162,069 100,000 107,811 70,181 4,380 16,016 36, 600 ‐ 95 601 1,133 1,796 199719981999200020012002200320042005200620072008200920102011 32 16 38 Sewage Treatment Plants 135 million liters capacity IMPROVED SEWER COVERAGE LLararges estt seweragese era e operaoperatortor iinn ththee PhiliPhilippinesppines Operates the most number of STPs with the biggest treatment capacity 33 IMPROVED SANITATION / SEPTAGE MANAGEMENT COVERAGE The leading septage management system in the region 34 17 Combined Systems First combined system Built under a basketball court Pineda STP 4 MLD 35 Combined Systems Awarded for its state‐of‐the‐art flood mitigating design integrated with a community park Olandes STP 10 MLD REGIONAL WINNER Project Innovation Awards Singapore June 2010 36 18 Combined Systems STP on stilts built on a flood control lagoon Poblacion STP 11 MLD 37 Wastewater Expansion: The 3‐River Master Plan 100% Sewer Coverage for the Marikina, Rodriguez San Juan, Pasig River Catchment (2018) San Mateo Will treat over 1 billion liters daily of Quezon City Marikina wastewater San Juan River Marikina River Catchment Catchment Estimated Investment of PhP 50 Billion San Juan Still subject to refinement and MWSS‐RO Pasig Approval Makati Taguig Pasig River Catchment 38 19.