INTEGRATED SAFEGUARDS DATASHEET APPRAISAL STAGE I. Basic Information Date prepared/updated: 05/20/2005 Report No.: 32443 Public Disclosure Authorized 1. Project Statistics Country: Philippines Project ID: P079661 Project Name: Manila Third Sewerage Project Task Team Leader: Luiz Claudio Martins Tava Estimated Appraisal Date: March 16, 2005 Estimated Board Date: June 21, 2005 Managing Unit: EASUR Lending Instrument: Specific Investment Loan Sector: Sewerage (50%);Sanitation (50%) Theme: Pollution management and environmental health (P);Access to urban services and housing (S) IBRD Amount (US$m.): 64.00 IDA Amount (US$m.): 0.00 Public Disclosure Authorized GEF Amount (US$m.): 0.00 PCF Amount (US$m.): 0.00 Other financing amounts by source: BORROWER 20.13 20.13 Environmental Category: A - Full Assessment Simplified Processing Simple [] Repeater [] Is this project processed under OP 8.50 (Emergency Recovery) Yes [ ] No [X] 2. Project Objectives The development objectives of MTSP are twofold: Public Disclosure Authorized (a) to increase the coverage and effectiveness of sewerage service delivery in participating areas of Metro Manila through an integrated approach involving septage management, sewage management, and heightened consumer awareness of water pollution problems and their solutions; and (b) to establish the viability of new approaches for wastewater management in Metro Manila. 3. Project Description Component 1: The Sewage Management component will involve construction of various sewage treatment plants (STP), interceptor sewers, pumping stations, repair of existing drainage and upgrading of communal septic tanks to provide secondary treatment. The component will benefit a population of about 1.0 million. Proposed locations are as Public Disclosure Authorized follows: ? Taguig Sewerage System includes the construction of four STPs (Hagonoy, Taguig, Tapayan and Labasan), which will use existing flood retention ponds as secondary clarifiers during the dry season. Treated effluent will discharge in Laguna de Bay. ? Riverbanks Sewerage System includes the construction of three STPs (Poblacion, Capitolyo, and Ilaya). The Capitolyo and Ilaya STPs will be underground, and the Poblacion STP will be on a platform above a flood retention pond. Treated effluent will discharge in the Pasig River. ? Quezon City-Marikina Sewerage System includes an underground STP along the Marikina River. The service area includes residential barangays and sub-divisions in Quezon City and two low-income sub-divisions in Marikina City. Treated effluent would discharge to the Marikina River. ? Quezon City Sanitation Upgrading includes the modification of two communal septic tanks in Quezon City to modern STPs. Their service areas will be extended to include parts of adjacent catchments. Rehabilitation of existing separate sewerage and extension of the service area of the existing STPs are also included.The treated effluent would discharge in local drainage canals. ? Sanitation for Low-income Communities includes the construction of two STPs serving Pinagsama, Taguig and East Bank, Taytay (along the Manggahan Floodway). The plants would serve low-income communities with poor or non-existent sanitation facilities. Treated effluent would discharge to the Pinagsama Creek and the Manggahan Floodway, respectively. The STPs constructed under this component will use recognized biological treatment processes, including SBR and oxidation ditches. Generated sludge would be hauled to the septage treatment plants for dewatering. Component 2: The Septage Management component will involve provision of vehicles for pumping-out septage from septic tanks (fecal tankers), septage treatment plants and safe disposal. The component would benefit a population of about 2.3 million. The component will include the following: ? Provision of (a) about seventy fecal tankers from 5 to 10 m3 capacities provided with vacuum pumping; and (b) specialized equipment for transport and application of dewatered septage on soil; ? Construction of septage treatment plant (SPTP) with a capacity of about 800 m3/d of raw septage, located in Taguig Industrial Complex and serving mainly the cities of Mandaluyong, Pasig, Makati and Taguig; and construction of a septage treatment plant (SPTP) with a capacity of about 600 m3/d of raw septage, located in San Mateo and serving mainly Quezon and Marikina Cities and San Juan. Component 3: Technical Assistance: The Technical Assistance component would enhance the proposed project investments through (a) a public information campaign on the environmental benefits of and best practices for proper disposal of sewage; and (b) preparation of follow-on programs for sewage and sanitation improvements. 4. Project Location and salient physical characteristics relevant to the safeguard analysis The MTSP covers the Eastern Concession zone of Metro Manila, covering primarily the 7 cities of Mandaluyong, Makati (Partly), Quezon (Partly), Pasig, San Juan, Pateros and Taguig. The population within the MWCI concession area (East zone) is predicted to increase from 5.3 million persons in 2004 to 8.2 million in 2021. There are no indications that the population growth will subside even after this period of sustained growth. Land uses vary in areas where the Project components are to be situated. Facilities for the Riverbanks Sewerage Systems, the Quezon City-Marikina Sewerage System, the Quezon City Sanitation Upgrading and Sanitation of Low Income Communities are situated within low-income residential areas. The South (Taguig) Septage Treatment Facility is situated within the waste treatment area in a controlled industrial zone, while the North (San Mateo) Septage Treatment Facility is located in a predominantly rural town where a wide area is still used for farming, poultry, piggery and quarrying. At the Taguig Sewerage System subcomponent, land use is predominantly agricultural and shoreland. The lahar disposal sites situated north of Metro Manila are in sugarcane farms and idle agricultural lands. The Project Region lies on the southern portion of the Luzon Central Plain. The regional landscape exhibits contrasting relief from the gently sloping to rugged terrain of the uplands to a central valley plain. The valley is drained by the Marikina River, which flows southwards to join the Pasig River. The Pasig River empties into Manila Bay and drains the Laguna Lake. The Pasig River System is a complex network of waterways that includes Marikina, San Juan, Esteros, and canals, which have the following characteristics: ? It is the main outlet of the Laguna Lake with a total surface area of 850 km2 and a drainage area of 2,750 km2. Waters coming from the Laguna Lake meanders through 27 kilometers of relatively flat coastal and highly urbanized plains of Metro Manila. Populations of around 10 million discharge their wastes into the Pasig River. ? There are over 300 industrial firms along the banks of the Pasig River system, about one-half have been found to be polluting the water in varying degrees. River pollution is further aggravated by oil spills, from about 300 gasoline stations, several oil depots, and barges, tanks and boats docking in the area. ? Marikina River, with its headwaters in the Sierra Madre mountains, joins the Pasig River 19 kilometers upstream of Manila Bay, with an estimated catchments at the junction of 515 km2 ? San Juan River, which drains most parts of Quezon City and San Juan, unites with the Pasig River about 9 kilometers upstream and has a catchments area of about 86 km2. The San Juan River is the most polluted major water body in the Pasig River system. ? The Pasig River is tidal, and the freshwater base flow varies substantially according to season. High flows of as much as 275 m3/sec usually occur between the rainy season of June to October, while low flows of about 12 m3/s occur between April and May. Even smaller base flows are possible during which periods the water quality deteriorates even further. Also during the low flow season, the Pasig River reverses its flow direction due to the high tides at Manila Bay, and polluted waters can return into Laguna Lake. Recent statistics show domestic wastewater as the main contributor (70%) to the pollution loading into the Pasig and Marikina Rivers, the two main rivers in the metropolis, and the Laguna Lake. Due to this pollution, there is insufficient oxygen within the waterways to support aquatic life. Fecal Coliform levels exceed the standards of the Department of Environment and Natural Resources (DENR) by several orders of magnitude most of the year. In terms of health impact, the 2003 Philippine Environment Monitor states that 31% of all illness in 2003 is water related, accounting for nearly 5 million of the reported illnesses. Moreover, it is estimated that 17 billion pesos is lost annually in the Philippine economy due to degradation of the marine environment. 5. Environmental and Social Specialists on the Team Mr Luiz Claudio Martins Tavares (EASUR) Mr Lars C. Lund (EASSD) Mr Teck Ghee Lim (EASSD) Mr Jitendra J. Shah (EASEN) Mr Glenn S. Morgan (EASES) 6. Safeguard Policies Triggered Yes No Environmental Assessment (OP/BP 4.01) X Natural Habitats (OP/BP 4.04) X Forests (OP/BP 4.36) X Pest Management (OP 4.09) X Cultural Property (OPN 11.03) X Indigenous Peoples (OD 4.20) X Involuntary Resettlement (OP/BP 4.12) X Safety of Dams (OP/BP 4.37) X Projects on International Waterways (OP/BP 7.50) X Projects in Disputed Areas (OP/BP 7.60) X II. Key Safeguard Policy Issues and Their Management A. Summary of Key Safeguard Issues 1. Describe any safeguard issues and impacts associated with the proposed project. Identify and describe any potential large scale, significant and/or irreversible impacts: The Pasig River System is a complex network of waterways that includes Marikina, San Juan, Esteros, and canals, which have the following characteristics: ? It is the main outlet of the Laguna Lake with a total surface area of 850 km2 and a drainage area of 2,750 km2. Waters coming from the Laguna Lake meanders through 27 kilometers of relatively flat coastal and highly urbanized plains of Metro Manila.