1.                  INTRODUCTION

 

1.1              Background

 

The ex-Provisional Regional Council (ex-PRC) understood that there was no beach facility at the east region of the New Territories, except in the Sai Kung District which is quite distant from Tai Po District. Hence it was suggested developing a bathing beach at Lung Mei, Tai Po. Therefore, in May 1998 the ex-PRC’s Culture, Recreation and Sports Committee endorsed the implementation of a feasibility study commissioned by the Architectural Services Department (ArchSD), which commenced in late 1999 and completed in mid-2001, which concluded that it was technically feasible to construct a bathing beach at Lung Mei.

 

Lung Mei is an easy accessible location adjacent to a prominent leisure area, Tai Mei Tuk, with well-established facilities for holiday-makers and water-based recreation activities, which has attracted many visitors, in particular during public holidays. It is anticipated that the proposed bathing beach would complement the facilities already provided in the Tai Mei Tuk area.  It is also noted that Drainage Services Department (DSD) plans to establish a new sewerage system (under The Tolo Harbour Sewerage of Unsewered Areas Stage I Phase IIC (Agreement No. CE 18/94)) allowing the residents in Lung Mei to connect their sewers to the public sewer.  This public sewer will deliver the sewage to the Tai Po STW for further treatment.  It is anticipated that the sewerage system will be completed prior to the operation of the Proposed Beach Development.  In addition, with the gazette of the Tolo Harbour Sewerage of Unsewered Areas Stage I Phase IIC (Agreement No. CE 18/94), as part of the Sewerage Master Plan (SMP) Works, under Road (Works, Use and Compensation) Ordinances as applied by Water Pollution Control (Sewerage) Regulation, which covers Lung Mei area and is scheduled to be completed before 2010, it is compulsory for any new development to connect their sewers to the public sewer and resulting improvement of water quality in the region.  According to the information provided by DSD, although the connection rate varies from village to village, a 60% connection rate would be more likely to be implemented.

 

The scope of the Project as given in the Project Profile and in the Assignment Brief comprises:

 

a.         a 200m long beach with a groyne at each end of the beach;

 

b.                  a beach building with associated beach facilities, including:

 

i.       public changing rooms and toilets;

 

ii.       shower rooms;

 

iii.      equipment / machinery stores for catamarans, motorized boats, beach transporters, beach cleansing and sand levelling machines, etc;

 

iv.           dangerous goods stores including paint and thinner for painting maintenance as well as kerosene and petrol for operation of machinery; and

 

v.             ancillary facilities including management office, lookout/surveillance post, first aid room, staff changing room/toilets, staff room/pantry, fast food kiosk, open seating out area, store rooms, etc;

 

c.                  retaining structures;

 

d.                  refuse collection point;

 

e.                  outdoor shower facilities;

 

f.                    lookout towers;

 

g.                  shark prevention net;

 

h.           a public car park including 113 fee-paying parking spaces for 100 private cars, 10 motorcycles and 3 coaches, 2 coach loading/unloading bays and 2 passenger car/taxi unloading bays;

 

i.                     landscaped areas;

 

j.                     drainage diversion of an existing box culvert and at Lo Tsz River; and

 

k.         sewerage construction works; and

 

l.          sand replenishment during the operation phase for maintenance of the beach, when necessary, such as after extreme storm conditions.

 

The location and general layout of the bathing beach development is shown on Figure 1.1.

 

This Assignment is classified as a Designated Project according to Items C.2 and C.12 of Part I, Schedule 2 under the Environmental Impact Assessment Ordinance (EIAO) and therefore, an Environmental Permit is required under the EIAO. Port Works Division (PWD) of Civil Engineering and Development Department (CEDD) is the project vote controller.

 

CEDD is also responsible for the overall planning, design and civil engineering construction of the Project. However, Architectural Services Department is responsible for design and construction of the beach building, car park and landscaping works. On 26 May 2006, CEDD appointed Halcrow China Limited (Halcrow), under Agreement No. CE 59/2005 (EP), to provide professional services in respect of “Development of a Bathing Beach at Lung Mei, Tai Po – Environmental, Drainage and Traffic Impact Assessments – Investigation” (hereafter called “the Assignment”). Halcrow has appointed their sub-consultant, Environmental Resources Management (ERM) to provide the environmental services in respect of the Assignment.

 

1.2       Public Consultations

 

Public consultations have been commenced in the early stages of this Assignment and continuous throughout the Project Study, in order to understand and address the public concerns of the preliminary designs related to the Bathing Beach Development.  The consultation parties included green groups, fisherman societies, Tai Po District Council and the general public through the District Office (Tai Po).  The major concerns comprise of potential environmental impacts during construction and operation of the proposed beach, long-term traffic impact arsing from the proposed development and drainage impact on the existing natural stream “Lo Tsz River”.  The key environmental comments received and the proposed measures in the studies and designs are summarised Table 1.1 below:

 

Table 1.1 Summary of Key Environmental Comments and Proposed Measures 

Comments

Proposed Measures in Studies and Design

Beach Development

·          Concern on the permanent lose in natural habitats due to the bathing beach development.

 

 

·          Concern on increase in the reclamation area of 1.02ha, which has been approved through the Planning Board in 2006.

Beach Development

·          Alternative to the Project should be detail assessed in the studies.  If it cannot be avoided, any alternatives to designs and construction works should be investigated to avoid/minimise any adverse environmental impacts.  (Please refer to Section 2 for the details)

·          The initial beach requirements and facilities have been reviewed with LCSD.  Moreover, building and car park layouts are optimized to minimise the reclamation requirement.  There is no change of reclamation area (Please refer to Section 2 for alternative to layout option)

Water Quality

·          Concern on water quality at Lung Mei during beach operation.

 

 

 

·          Connection percentage of the DSD’sTolo Harbour Sewerage of Unsewered Areas Stage I Phase IIC” would affect the long-term water quality of the proposed bathing beach.

·          Potential impacts on the nearby fisheries and marine ecology during dredging and sandfilling operations

Water Quality

·          A DSD’sTolo Harbour Sewerage of Unsewered Areas Stage I Phase IIC” project has been tentatively scheduled for completion by 2010 to cover the village areas in proximity of the proposed beach development at Lung Mei.  The purpose of the DSD project is to connect the existing improper sewerage discharge and improve the water quality in the Tolo Harbour.

·          The connection percentage assumption in water quality impact assessment would be established based on the DSD past project experiences.  Moreover, a sensitive analysis would be carried out to simulate different scenarios of the connection percentages.

·          As advised by the fisherman societies, the dredging works has been scheduled to be conducted in the period of December to January.  Moreover, the proposed water quality monitoring stations have been agreed with the fisherman societies. Close coordination/liaisons with the stakeholders would be also maintained during construction.

The potential water quality impacts arising from the proposed construction works would be assessed and any mitigation measures, such as installation of silt curtain, would be recommended as necessary.  (Please refer to Section 6 for the details)

Drainage Diversion Scheme for

Downstream of Existing Lo Tsz

River

·          Disagree to combined the drainage diversion works for Lo Tsz River and the existing box culvert due to the potential poor water quality of runoff n the box culvert;

·          Suggest to leave the existing estuary of Lo Tsz River in place and no works to be proposed there;

·          Concern on the effect on the many mangroves in the area.

Drainage Diversion Scheme for Downstream of

Existing Lo Tsz River

 

·          The combined drainage diversion option has been cancelled in the early investigation stage and separate drainage diversion works for Lo Tsz River and the existing box culvert have been adopted;

 

·          No works are proposed to the estuary of Lo Tsz River;

 

 

·          The ecological survey showed that the Project Site located away from the mangrove habitats (approximately 500 m) but there were some mangrove seedlings found in the concerned area and any potential impacts would be assessed in this EIA study. (Please refer to Section 8 for details).

Landscape Issue

·          Suggest the preservation of existing native trees but there is no need for the exotic trees, as they will be difficult to maintain;

·          Suggest the inclusion of some tree species with fruits in the landscape proposal to provide food for birds;

·          Recommend monitoring of Mikania micrantha (薇金菊) to avoid any overgrowth and as such, protect other species in the western open channel areas.

Landscape Issue

·          Suggestion has been taken into account in the landscape proposal;

 

 

·          Tree species with fruits would be included in the proposal.

 

 

·          Recommendations for monitoring of Mikania micrantha would be included in the EIA report.

Beach Stability

·          Concerns about the beach stability due to typhoon influences.

Beach Stability

·          The beach site is preferred to be well sheltered with low tidal current.  Moreover, the shoreline stability would be confirmed by modelling in this Assignment.

 

In the light of the Public concerns, alternatives to the Project, designs and construction methods have been assessed, taking into account practicality, reliability, cost-effectiveness and environmental and social acceptability of the study options.  Details will be further discussed in Section 2.

 

1.3       Purpose and Objective of this EIA Report

 

The purpose of this EIA Study is to provide information on the nature and extent of environmental impacts arising from the construction and operation of the development of a bathing beach at Lung Mei, Tai Po and all related activities taking place concurrently.

 

The specific objectives for the EIA Study are set out in the EIA Study Brief (No. ESB-138/2006), as listed below:

 

a.         To describe the Project and associated works together with the requirements for carrying out the Project;

 

b.         To identify and describe elements of community and environment likely to be affected by the Project and/or likely to cause adverse impacts to the Project, including natural and man-made environment and the associated environmental constraints;

 

c.         To provide information on the consideration of alternatives to avoid and minimize potential environmental impacts to environmentally sensitive areas and other sensitive uses; to compare the environmental benefits and dis-benefits of each of different options; to provide reasons for selecting the preferred option(s) and to describe the part environmental factors played in the selection of preferred option(s);

 

d.         To identify and quantify emission sources and determine the significance of impacts on sensitive receivers and potential affected uses;

 

e.         To identify and quantify any potential landscape and visual impacts and to propose measures to mitigate these impacts;

 

f.          To propose provision of mitigation measures so as to minimize pollution, environmental disturbance & nuisance during construction & operation of Project;

 

g.         To investigate the feasibility, practicability, effectiveness and implications of the proposed mitigation measures;

 

h.         To identify, predict and evaluate the residual environmental impacts (i.e. after practicable mitigation) and the cumulative effects expected to arise during the construction and operation phases of the Project in relation to the sensitive receivers and potential affected uses;

 

i.          To identify, assess and specify methods, measures and standards, to be included in the detailed design, construction and operation of the Project which are necessary to mitigate these environmental impacts and cumulative effects and reduce them to acceptable levels;

 

j.          To investigate the extent of the secondary environmental impacts that may arise from the proposed mitigation measures and to identify constraints associated with the mitigation measures recommended in the EIA study, as well as the provision of any necessary modification; and

 

k.         To design and specify environmental monitoring and audit requirements to ensure the effective implementation of the recommended environmental protection and pollution control measures.

 

1.4              Structure of this EIA Report

 

Structure of this report is divided in the following sections:

 

·                     Section 2 discusses on the consideration of alternatives

 

·                     Section 3 describes the Project Description

 

·                     Section 4  presents the Air Quality Impact Assessment

 

·                     Section 5 presents the Noise Impact Assessment

 

·                     Section 6 discusses on the Waste Management Implications

 

·                     Section 7 presents the Water Quality Impact Assessment

 

·                     Section 8  presents the Ecological Impact Assessment

 

·                     Section 9 presents the Fisheries Impact Assessment

 

·                     Section 10 presents the Landscape and Visual Impact Assessment

 

·                     Section 11 discusses the Summary of Environmental Outcomes

 

·                     Section 12 contains the Environmental Monitoring and Audit Requirements