1.        introduction.. 1-1

1.1       Project Background. 1-1

1.2       Construction Programme. 1-1

1.3       Purpose of the Manual 1-2

1.4       Contents. 1-2

 

List of Figures

Figure 1.1          Site Location Plan

Figure 1.2          Proposed Drainage Works at Sung Shan New Village

Figure 1.3          Proposed Drainage Works at Tai Wo

Figure 1.4A        Proposed Drainage Works at Lin Fa Tei (Sheet 1 of 2)

Figure 1.4B        Proposed Drainage Works at Lin Fa Tei (Sheet 2 of 2)

Figure 1.5A        Proposed Drainage Works at Ha Che (Sheet 1 of 2)

Figure 1.5B        Proposed Drainage Works at Ha Che (Sheet 2 of 2)

 

1.           introduction

1.1         Project Background

1.1.1    The Drainage Master Plan Studies for the Yuen Long, Kam Tin, Ngau Tam Mei and Tin Shui Wai Drainage Basin (YLDMP) were completed in 1998. The majority of the improvement works in Yuen Long and Kam Tin recommended under the YLDMP Study have been completed. Since completion of the DMP Studies, there have been changes in developments within the areas and new development proposals and town planning studies were commissioned. In addition, some new flooding complaints were received at the upstream areas of the drainage basins, indicating that further improvement to the drainage systems was required.

1.1.2    DSD commissioned the “Review of Drainage Master Plans in Yuen Long and North Districts – Feasibility Study” (the Review Study) in 2008 so that the new development scenarios could be incorporated and the effectiveness of the previously recommended works could also be assessed. The Review Study completed in end 2011 identified that some areas in Yuen Long District could not meet the required flood protection level according to the latest land use changes and future developments taking into account various factors, including sedimentation at the downstream main channels, mangrove growth at river estuaries, updated extreme sea level statistics at Tsim Bei Tsui and projected Climate Change impacts, in the hydraulic analysis. To account for the severity and extent of possible flooding and the works implementation time, the Review Study proposed drainage improvement works in Yuen Long District.

1.1.3    Atkins China Ltd (ACL) was commissioned by DSD in November 2013 to undertake an Investigation, Design and Construction Consultancy entitled “Agreement No. CE 22/2013 (DS) Drainage Improvement Works in Yuen Long, Stage 1 – Investigation, Design and Construction” (hereinafter called the Assignment). The Project comprises construction of drainage improvement works to four villages (namely Sung Shan New Village, Tai Wo, Lin Fa Tei and Ha Che) including landscaping, waterscaping, utilities diversion, temporary traffic arrangements, re-provisioning / improvements to existing dry weather flow intercepting system and any other works incidental to the completion of the Project.

1.1.4    An Environmental Impact Assessment (EIA) Study Brief (ESB-279/2014) for four villages namely Ha Che, Tai Wo, Lin Fa Tei and Sung Shan New Village which is a designated project was issued by the Environmental Protection Department (EPD) on 14 October 2014. According to the Study Brief, an Environmental Monitoring & Auditing (EM&A) Manual is required for these four villages.

1.1.5    The site location plan is shown in Figure 1.1 and the locations of the proposed drainage improvement works at these four village are detailed in Figures 1.2, 1.3, 1.4A, 1.4B, 1.5A and 1.5B.

1.2         Construction Programme

1.2.1     The proposed drainage improvement works are planned to commence in 2022 and completion in 2025.

1.3         Purpose of the Manual

1.3.1    The purpose of this EM&A Manual (hereafter refer to as the “Manual”) is to guide the set up of an EM&A programme to ensure compliance with the recommendations in the EIA study covering the drainage improvement works near four villages in Yuen Long, to assess the effectiveness of the recommended mitigation measures and to identify any further need for additional mitigation measures or remedial action.  This Manual outlines the monitoring and audit programme for both the construction and operational phase of the Project.  It aims to provide systematic procedures for monitoring, auditing and minimising environmental impacts associated with the construction and operational phases.

1.3.2    This Manual provides specific information, guidance and instruction to personnel in charged with environmental responsibilities and undertaking environmental monitoring and auditing works for drainage improvement works near four villages in Yuen Long. It also provides systematic procedures for monitoring, auditing, and minimising environmental impacts associated with the construction activities.

1.3.3    The EM&A programme contain the following information:

·         project organization for the Project;

·         responsibilities of the Contractor, the Engineer or Engineer’s Representative (ER) and Environmental Team (ET) with respect to the environmental monitoring and audit requirements during the course of the Project;

·         the basis for, and description of the broad approach underlying the EM&A programme;

·         requirements with respect to the construction programme schedule and the necessary environmental monitoring and audit programme to track the varying environmental impact;

·         details of the methodologies to be adopted, including all field laboratories and analytical procedures, and details on quality assurance and quality control programme;

·         definition of Action and Limit levels;

·         establishment of Event and Action plans;

·         requirements for reviewing pollution sources and working procedures required in the event of non-compliance with the environmental criteria and complaints;

·         requirements for presentation of environmental monitoring and audit data and appropriate reporting procedures; and

·         requirements for review of EIA predictions and the effectiveness of the mitigation measures / environmental management systems and the EM&A programme.

1.4         Contents

1.4.1    The background, description and construction programme of this Project are provided in Section 1.1 – 1.3.  The requirements on the EM&A programme are detailed in the following sections:

Section 2 – Project Organisation

Section 3 – Air Quality

Section 4 – Noise

Section 5 – Ecology

Section 6 – Water Quality 

Section 7 – Waste Management

Section 8 – Land Contamination

Section 9 – Landscape & Visual

Section 10 – Cultural Heritage

Section 11 – Site Environmental Audit

Section 12 – Reporting