Relocation of Diamond Hill Fresh Water and Salt Water Service Reservoirs to Caverns
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Relocation of Diamond Hill Fresh Water and Salt Water Service Reservoirs to Caverns Project Profile 401049/B&V/005 Water Supplies Department Black & Veatch Hong Kong Limited Project Management Division 43/F, AIA Tower Kowloon Tower 46/F, Immigration Tower, 100 How Ming Street, 7 Gloucester Road, Kwun Tong, Wan Chai, Hong Kong Kowloon May 2019 Relocation of Diamond Hill Fresh Water and Project Profile Salt Water Service Reservoirs to Caverns 401049/B&V/005 CONTENTS 1 BASIC INFORMATION ........................................................................................................... 1 1.1 PROJECT TITLE ............................................................................................................................. 1 1.2 PURPOSE AND NATURE OF THE PROJECT ..................................................................................... 1 1.3 NAME OF THE PROJECT PROPONENT ............................................................................................ 1 1.4 LOCATION AND SCALE OF THE PROJECT AND HISTORY OF THE SITE .......................................... 1 1.5 NUMBER AND TYPES OF DESIGNATED PROJECTS TO BE COVERED BY THE PROJECT PROFILE .... 2 1.6 NAME AND TELEPHONE NUMBER OF CONTACT PERSONS ........................................................... 2 2 OUTLINE OF PLANNING AND IMPLEMENTATION PROGRAMME ......................... 3 2.1 PROJECT PLANNING AND IMPLEMENTATION ................................................................................ 3 2.2 PROJECT PROGRAMME ................................................................................................................. 3 2.3 PROJECT INTERFACE ..................................................................................................................... 3 2.4 BRIEF DESCRIPTION OF THE PROJECT .......................................................................................... 3 3 POSSIBLE IMPACT ON THE ENVIRONMENT ................................................................. 5 3.1 POSSIBLE ENVIRONMENTAL IMPACTS DURING CONSTRUCTION OF THE PROJECT....................... 5 3.2 POSSIBLE ENVIRONMENTAL IMPACTS DURING OPERATION OF THE PROJECT ............................. 6 3.3 SUMMARY .................................................................................................................................... 8 4 MAJOR ELEMENTS OF THE SURROUNDING ENVIRONMENT ................................. 9 4.1 EXISTING AND PLANNED SENSITIVE RECEIVERS ......................................................................... 9 4.2 MAJOR ELEMENTS OF THE SURROUNDING ENVIRONMENT AFFECTING THE PROJECT .............. 10 5 ENVIRONMENTAL PROTECTION MEASURES TO BE INCORPORATED INTO THE DESIGN AND ANY FURTHER ENVIRONMENTAL IMPLICATIONS ............... 11 5.1 CONSTRUCTION PHASE............................................................................................................... 11 5.2 OPERATION PHASE ..................................................................................................................... 12 6 USE OF PREVIOUS APPROVED EIA REPORT ............................................................... 14 TABLES Table 2.1 Potential Concurrent Projects ....................................................................... 3 Table 3.1 Summary of Potential Environmental Impacts ............................................. 8 Table 4.1 Major Sensitive Receivers and Sensitive Parts of Natural Environment ...... 9 FIGURES Figure 1 Location Plan Figure 2 Locations of Sensitive Receivers May 2019 i B&V Relocation of Diamond Hill Fresh Water and Project Profile Salt Water Service Reservoirs to Caverns 401049/B&V/005 Name Signature Date Prepared by Sarah Yau May 2019 Checked by Esther Tong May 2019 Reviewed by Angela Wong May 2019 Authorized by Tony Lau May 2019 May 2019 ii B&V Relocation of Diamond Hill Fresh Water and Project Profile Salt Water Service Reservoirs to Caverns 401049/B&V/005 1 BASIC INFORMATION 1.1 Project Title 1.1.1 The title of the Project is “Relocation of Diamond Hill Fresh Water and Salt Water Service Reservoirs to Caverns” (hereinafter referred to as “the Project”). 1.2 Purpose and Nature of the Project 1.2.1 The 2011-12 Policy Address announced that the Government would adopt a multi-pronged approach, including rock cavern development (RCD), for expanding land resources. A study on “Enhancing Land Supply Strategy: Reclamation outside Victoria Harbour and Rock Cavern Development”, commissioned by CEDD in July 2011, identified Diamond Hill Fresh Water and Salt Water Service Reservoirs (DHSRs) as one of the three pilot schemes for rock cavern development. 1.2.2 Relocation of DHSRs to caverns would potentially release the existing site of about 4 hectares for other beneficial uses. 1.2.3 The Project aims to relocate the DHSRs, including Diamond Hill Fresh Water Service Reservoir (DHFWSR) and Diamond Hill Salt Water Service Reservoir (DHSWSR) into caverns for releasing the existing DHSRs site for housing and/or other compatible and beneficial uses while ensuring a reliable, adequate and quality supply of water. 1.3 Name of the Project Proponent 1.3.1 Water Supplies Department (WSD), the Government of the Hong Kong Special Administrative Region 1.4 Location and Scale of the Project and History of the Site 1.4.1 The existing DHSRs and Diamond Hill Fresh Water and Salt Water Pumping Stations are located at Shatin Pass Road at Tsz Wan Shan. The storage capacities of the existing DHFWSR and DHSWSR are 23,524 m3 and 21,836 m3, respectively. There are total five pumps in the existing Diamond Hill Fresh Water and Salt Water Pumping Station, three for fresh water and two for salt water supply. 1.4.2 The proposed DHSRs will be relocated into caverns at hillsides north to Chuk Yuen North Estate, Wong Tai Sin. The proposed Project site lies within the Wang Tau Hom & Tung Tau Outline Zoning Plan No. S/K8/21 and the Tsz Wan Shan, Diamond Hill & San Po Kong Outline Zoning Plan No. S/K11/29. The zoning of the proposed site is Green Belt (GB). 1.4.3 The proposed storage capacity of the relocated DHFWSR and DHSWSR is 10,000 m3 and 19,000 m3 respectively. A vehicular access tunnel and an emergency exit will connect the caverns to Ma Chai Hang Fresh Water Service Reservoir and Shatin Pass Road, respectively. Some ancillary facilities will be constructed near the tunnel portal. The proposal might be subject to revisions during the option evaluation in the investigation and design phases of the Project. The two portals fall within an area zoned as “Green Belt” (“GB”) and “Government, Institution or Community” (“GIC”) according to the Wang Tau Hom & Tung Tau Outline Zoning Plan No. S/K8/21 and the Tsz Wan Shan, Diamond Hill & San Po Kong Outline Zoning Plan No. S/K11/29. 1.4.4 The demolition of existing facilities, and construction of infrastructures at the released site is not included in the Project and will be carried out by other government departments/project proponents. May 2019 1 B&V Relocation of Diamond Hill Fresh Water and Project Profile Salt Water Service Reservoirs to Caverns 401049/B&V/005 1.4.5 The location plan for the relocated DHSRs is shown in Figure 1. 1.5 Number and Types of Designated Projects to be covered by the Project Profile 1.5.1 The Project is a Designated Project under Item Q.2, Part I of Schedule 2 of the Environmental Impact Assessment Ordinance, "Underground Rock Caverns", which requires an environmental permit from Environmental Protection Department for its construction and operation. 1.6 Name and Telephone Number of Contact Persons Name: Ms. KWAN Kai Yin Post: Senior Engineer, Project Management Division, WSD Tel: 2829 5652 Fax: 2586 1696 Email: [email protected] Address: Head Office - Immigration Tower, 46th Floor, 7 Gloucester Road, Wan Chai, Hong Kong May 2019 2 B&V Relocation of Diamond Hill Fresh Water and Project Profile Salt Water Service Reservoirs to Caverns 401049/B&V/005 2 OUTLINE OF PLANNING AND IMPLEMENTATION PROGRAMME 2.1 Project Planning and Implementation 2.1.1 WSD commenced a detailed feasibility study “Relocation of Diamond Hill Fresh Water and Salt Water Service Reservoirs to Caverns – Feasibility Study” in December 2014. The Feasibility Study recommended to construct the relocated DHSRs in a series of proposed caverns linked by access tunnels and adits, which are considered technically feasible. 2.1.2 WSD has engaged Black & Veatch Hong Kong Limited as Consultants in December 2018 to undertake the investigation, design and construction supervision on relocating the DHSRs into caverns. WSD will operate and maintain the completed works. 2.2 Project Programme 2.2.1 Construction of the Project is tentatively scheduled to commence in the second half of 2021 for completion by about 2027. Tentative programme for commissioning of the relocated DHSRs and terminating the operation of the existing DHSRs will be undertaken in 2027. The EIA study of the Project is tentatively scheduled to commence in mid-2019 for completion in the fourth quarter of 2020. 2.3 Project Interface 2.3.1 The Project would have potential interface with the following projects as shown in Table 2.1. This list will be updated during drafting of EIA Report and close liaison will be maintained with the respective project proponents/teams. Any interfacing issues and cumulative impacts from these concurrent projects during construction and operation phases will be identified and assessed. Table 2.1 Potential Concurrent Projects Project Name Target Work Target Work Commencement Completion Date Date Project