Environmental Impact Assessment Project Number: 52083-001 November 2018 Draft Proposed Multitranche Financing Facility Republic of the Philippines: Malolos-Clark Railway Project (Solis to Blumentritt Section of North South Railway Project) Volume 3 Supplementary Survey Report NOTE: This EIA covers the North South Railway Project from Solis to Calamba. The disclosure of this EIA is for NSRP’s Solis- Blumentritt section that will be implemented as part of the Malolos-Clark Railway Project. Prepared by the Department of Transportation for the Asian Development Bank. This environmental impact assessment is a document of the borrower. The views expressed herein do not necessarily represent those of ADB's Board of Directors, Management, or staff, and may be preliminary in nature. Your attention is directed to the “terms of use” section on ADB’s website. In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of any territory or area. Environmental Impact Statement for The North South Railway Project (NSRP) VOLUME III: SUPPLEMENTARY SURVEY REPORT (Final Report) August 2018 Department of Transportation (DOTr) Supplementary Survey Report THE NORTH SOUTH RAILWAY PROJECT TABLE OF CONTENTS 1. INTRODUCTION ............................................................................................................. 1 2. SCOPE OF WORK ........................................................................................................... 2 3. RESULTS of the survey .................................................................................................... 3 3.1 TERRESTRIAL ECOLOGY ............................................................................................. 3 Terrestrial Flora ......................................................................................................... 3 Terrestrial Fauna ...................................................................................................... 30 3.2 WATER QUALITY ........................................................................................................ 44 Groundwater Quality ............................................................................................... 44 Surface Water / Freshwater Quality ......................................................................... 62 3.3 AIR QUALITY ................................................................................................................ 86 Ambient Air Quality ................................................................................................ 86 Noise ........................................................................................................................ 96 3.4 SOIL QUALITY ............................................................................................................ 110 Composite sampling .............................................................................................. 110 Applied standard .................................................................................................... 111 Results and Analysis .............................................................................................. 111 4. REFERENCES .............................................................................................................. 112 LIST OF TABLES Table 1.1 Station Location ................................................................................................................. 1 Table 2.1 Schedule of Additional Survey Conducted ........................................................................ 3 Table 3.1 Terrestrial Flora Sampling Station ..................................................................................... 5 Table 3.2 Top 10 Species with the Highest Importance Value (IV) ................................................ 21 Table 3.3 Top 10 Most Abundant Understorey Species .................................................................. 22 Table 3.4 Top 10 Most Dominant Ground Cover Species............................................................... 23 Table 3.5 Diversity Indices and Number of Species and Individuals per Transect ......................... 24 Table 3.6 List of Philippine Endemic Species Recorded at the Established Transects ................... 26 Table 3.7 List of Threatened Species Recorded at the Established Transects ................................. 27 Table 3.8 List of Threatened, Indigenous and Endemic Tree Species ............................................. 28 Table 3.9 List of Invasive Alien Apecies (IAS) Documented in the Study Area During Wet Season .............................................................................................................................................. 28 Table 3.10 List of Some Economic Uses and Importance of Significant Flora Recorded at the Established Transects along the Proposed NSRP ............................................................................ 29 Table 3.11 Terrestrial Fauna Sampling Stations .............................................................................. 32 Table 3.12 Inventory of Birds .......................................................................................................... 33 Table 3.13 Comparison of Number of Bird Species documented during the 2018 wet and dry seasons ............................................................................................................................................. 37 Table 3.14 Comparison of avifauna species documented during the 2018 wet and dry seasons .... 37 Table 3.15 Inventory of Mammals Recorded at Six (6) Transects .................................................. 38 Table 3.16 Comparison of Number of Mammalian Species during 2018 Wet and Dry Seasons Monitoring ....................................................................................................................................... 41 Table 3.17 Comparison of mammal species between the wet and dry seasons ............................... 41 Table 3.18 List of Herpefauna Recorded in Six (6) Transects ........................................................ 42 Table 3.19 Comparison of Number of Herpetofaunal Species during 2018 Wet and Dry Seasons Monitoring ....................................................................................................................................... 44 Table 3.20 Comparison of Number of Herpetofaunal Species during 2018 Wet and Dry Seasons Monitoring ....................................................................................................................................... 44 Table 3.21 Groundwater Quality Sampling Stations ....................................................................... 45 Table 3.22 Table of Trends for Groundwater Parameters ............................................................... 48 Table 3.23 Results of Analysis of Groundwater samples ................................................................ 50 Table 3.24 Surface Water / Freshwater Quality Sampling Stations ................................................ 62 i Supplementary Survey Report THE NORTH SOUTH RAILWAY PROJECT Table 3.25 Table of Trends for Surface Water Parameters ............................................................. 65 Table 3.26 Results of Freshwater Quality Sampling ....................................................................... 69 Table 3.27 Date and Time of Air Quality Sampling Per Station ..................................................... 86 Table 3.28 Relevant Guideline Values for Ambient Air Quality .................................................... 89 Table 3.29 Weather Conditions during Wet and Dry Seasons ........................................................ 89 Table 3.30 Ambient Air Quality Results during Wet and Dry Seasons .......................................... 90 Table 3.31 Description of Noise Sampling Stations ........................................................................ 97 Table 3.32 Summary of Results of Noise Level Monitoring for NSRP as Compared with NPCC Standards ....................................................................................................................................... 104 Table 3.33 Summary of Results of Noise Level Monitoring in Compliance with the WHO Guidelines ...................................................................................................................................... 106 Table 3.34 Summary of Results of Soil Quality Sampling ............................................................ 112 LIST OF FIGURES Figure 1.1 Project Alignment Showing LGUs’ Political Boundaries ................................................ 2 Figure 3.1 Terrestrial Ecology Sampling Stations ............................................................................. 7 Figure 3.2 Map showing Transect 1 established at Solis Station, Tondo, Manila ........................... 12 Figure 3.3 Map showing Transect 2 Established at FTI-Nichols Station ........................................ 13 Figure 3.4 Map showing Transect 3 established at Brgy. Banay-Banay and Niugan ...................... 15 Figure 3.5 Map showing Transect 4 established at Brgy. Tadlac, Los Baños, Laguna. .................. 16 Figure 3.6 Map showing Transect 5 established at Brgy. Timugan (Incl. Baybayin), Los