Domestic WastewaterManagement in Mega Manila: Partnership in Action Leonor C. Cleofas 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 Maynilad East Zone Manila Water Land Area (sq. km.) 540 1,400 Service Area 17 cities/ Municipalities 23 cities/ Municipalities The world s largest water concession arrangement covering 1,940 sq. km and serving 15.8 million people (2011) Securing the Future Today Total Population Population Served Raw Water Allocation % Water Supply Coverage % Sewerage Coverage 8.40 M 6.80 M 7.40 M 5.90 M 2,400 mld 1,600 mld 88% 87% 8% 23% 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 Dam La Mesa Dam <8% Sewer Coverage 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 ation 000 000 Popul Population 20000 15000 10000 5000 0 1997 2011 20000 20000 15000 10000 5000 0 1997 2011 Sewer Coverage Population 000 10000 0 1997 2011 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 Decentralized dupgrade of Eiti Existing CSTs Septage Management Combined Sewer Drainage Systems 10 5
Key Strategies Upgrade of Communal Septic Tanks (CSTs) Septage Management Combined Sewer Drainage System Convert existing CSTs to decentralized STPs Utilize pre existing dedicated (separate) sewer networks Septic Tank kdesludging For areas served by every 3 5 years individual septic tanks and Septic tank sludge sent to with no existing sewer treatment facilities network 11 Key Strategies Upgrade of Communal Septic Tanks (CSTs) Septage Management Combined Sewer Drainage System Convert existing CSTs to decentralized STPs Utilize pre existing dedicated (separate) sewer networks Septic Tank kdesludging For areas served by every 3 5 years individual septic tanks and Septic tank sludge sent to with no existing sewer treatment facilities network 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 Septic Tanks (CSTs) Convert existing CSTs to decentralized STPs Utilize pre existing dedicated (separate) sewer networks Septage Management Combined Sewer Drainage System Free Septic Tank kdesludging For areas served by every 3 5 years individual septic tanks and Septic tank sludge sent to with no existing sewer treatment facilities network 16 8
Septage Management 17 Key Strategies Upgrade of Communal Septic Tanks (CSTs) Convert existing CSTs to decentralized STPs Utilize pre existing dedicated (separate) sewer networks Septage Management Combined Sewer Drainage System Free Septic Tank kdesludging For areas served by every 3 5 years individual septic tanks and Septic tank sludge sent to with no existing sewer treatment facilities network 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 large available 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 Plants 4 41 Capacity 53,150 CMD 585,994 CMD Septage Management Facilities 0 3 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 M US$ 411 M US$ 604 M US$ 622 M US$ 1.75 B Manila Water US$ 295 M US$ 680 M US$ 164 M US$ 481 M US$ 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 Lack of Public Information and Awareness Comprehensive Tariff Structure Strengthen Media Relationships 30 15
Operational Challenges Lack of expertise Cross functional Training i Program Testing and Commissioning Strategies 31 Accomplishment: Septage Management 900,000 Households Served 800,000 700,000 600,000 500,000 400,000 300,000 200,000 100,000 267,178 455,413 852,848 826,870 722,608 162,069 4,380 16,016 70,181 107,811 36,600 600 95 601 1,133 1,796 199719981999200020012002200320042005200620072008200920102011 32 16
38 Sewage Treatment Plants 135 million liters capacity IMPROVED SEWER COVERAGE Largest sewerage era e operator in the Philippines 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, San Juan, Pasig River Catchment (2018) Will treat over 1 billion liters daily of wastewater Estimated Investment of PhP 50 Billion Still subject to refinement and MWSS RO Approval Makati Quezon City San Juan River Catchment San Juan Taguig Pasig River Catchment Pasig Marikina San Mateo Rodriguez Marikina River Catchment 38 19