Maynilad Water Services, Inc. Public Disclosure Authorized
Total Page：16
File Type：pdf, Size：1020Kb
Fall 08 Environmental Impact Statement SOUTH SEPTAGE TREATMENT PLANT Maynilad Water Services, Inc. Public Disclosure Authorized Public Disclosure Authorized South Septage Treatment Plant Alabang-Zapote Road, Barangay Pamplona Uno, Las Piñas City Environmental Impact Statement Public Disclosure Authorized Public Disclosure Authorized M a y 2014 1 | P a g e Environmental Impact Statement SOUTH SEPTAGE TREATMENT PLANT CONTENTS Executive Summary ...................................................................................................................................... 7 Project Fact Sheet ..................................................................................................................................... 7 Introduction ................................................................................................................................................ 7 Brief Description of the Project .................................................................................................................. 8 A. Project Location ............................................................................................................................. 8 B. Project Components ....................................................................................................................... 8 C. Project Rationale ............................................................................................................................ 9 D. Project Phases ............................................................................................................................... 9 E. Types of Major Wastes ................................................................................................................ 10 Summary of Project’s EIA Process ......................................................................................................... 10 A. Description of Philippines Policy, Legal and Administrative Framework ..................................... 10 B. World Bank’s Environment Safeguards Requirements ................................................................ 11 C. Organization and Structure of the EIS Report ............................................................................. 12 D. EIA Study Schedule ..................................................................................................................... 12 E. EIA Study Area ............................................................................................................................. 12 F. EIA Methodology .......................................................................................................................... 13 G. Public Participation ...................................................................................................................... 13 Summary of Baseline Characterization ................................................................................................... 14 Key Environmental Impacts ..................................................................................................................... 16 A. Benefits ........................................................................................................................................ 16 B. Adverse Impacts and Associated Mitigating Measures ............................................................... 16 Environmental Management and Monitoring Plan .................................................................................. 16 Environmental Monitoring Fund and Environmental Guarantee Fund .................................................... 17 1. Project Background and Rationale ...................................................................................................... 18 2. Project Description ............................................................................................................................... 18 2.1 Project Location and Area .............................................................................................................. 18 2.2 Project Rationale ............................................................................................................................ 21 2.3 Project Alternatives ........................................................................................................................ 21 2.3.1 Without Project Alternative ...................................................................................................... 21 2.3.2 Siting Alternative ..................................................................................................................... 21 2.3.3 Sanitation Alternatives ............................................................................................................ 21 2.3.3.1 Septage Treatment Options .............................................................................................. 21 2.4 Project Development Plan, Process Technology and Project Components .................................. 22 2.4.1.1 Amenities, Equipment and Machinery .............................................................................. 26 2.5 Description of Project Phases ........................................................................................................ 27 2.5.1 Pre-Construction/Pre-Operational Phase ............................................................................... 27 2.5.2 Construction/Development Phase ........................................................................................... 27 2.5.2.1 Construction Wastes and Management Measures ........................................................... 27 2.5.3 Operational Phase................................................................................................................... 27 2.5.3.1 Waste Production and Management Scheme During Operational Phase ....................... 27 2.5.4 Abandonment Phase ............................................................................................................... 27 2.6 Manpower Requirements ............................................................................................................... 28 3 Analysis of Key Environmental Impacts ............................................................................................... 29 3.1 Land ............................................................................................................................................... 29 3.1.1 Land Use and Classification .................................................................................................... 29 3.1.1.1 Affected Structures at Proposed STP Site ....................................................................... 30 3.1.2 Topography and Physiography ............................................................................................... 30 3.1.3 Soil .......................................................................................................................................... 31 3.1.4 Geology ................................................................................................................................... 32 3.1.5 Geomorphology ....................................................................................................................... 33 3.1.6 Tectonic Setting....................................................................................................................... 34 3.1.6.1 Geologic Hazards ................................................................................................................ 35 A. Ground Rupture .................................................................................................................... 35 2 | P a g e Environmental Impact Statement SOUTH SEPTAGE TREATMENT PLANT B. Ground Shaking .................................................................................................................... 35 C. Differential Settlement and Liquefaction ............................................................................... 35 D. Damage to Adjacent Properties ............................................................................................ 37 3.1.7 Flora and Fauna ...................................................................................................................... 38 3.2 The Water....................................................................................................................................... 38 3.2.1 Hydrology ................................................................................................................................ 38 3.2.1.1 Flooding ............................................................................................................................... 39 3.2.1.2 Uses of the River ................................................................................................................. 40 3.2.2 Water Quality ........................................................................................................................... 40 3.2.2.1 Surface Water Quality ....................................................................................................... 40 3.2.3 Groundwater ............................................................................................................................ 42 3.3 The Air ............................................................................................................................................ 43 3.3.1 Meteorology