LAMMA POWER STATION EXTENSION

Supply and Installation of Submarine Gas Pipeline

 

 

 

Water Quality Monitoring Report

 

May 2005

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

10/6/05

Issued for comments

WK

 

 

 

REV

DATE

DESCRIPTION

PREPARED

 CHECKED

APPROVED

PURCHASER

STATUS CODE :  A = Issued for comments – B = Issued for approval – C = Approved for Construction

 

TOTAL OR PARTIAL REPRODUCTION AND/OR UTILIZATION OF THIS DOCUMENT ARE FORBIDDEN

WITHOUT PRIOR WRITTEN AUTHORIZATION OF THE OWNER

                    


                  

THE HONGKONG ELECTRIC CO., LTD.

LAMMA POWER STATION EXTENSION

Supply and Installation of Submarine Gas Pipeline

Contract No. 03/9008

 

 

Doc. No.: LTLD-32-1-138-G

REVISION

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STATUS

A


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Saipem Asia Sdn. Bhd

 

 

 

 

 

 

 

 

 

Lamma Power Station Extension

– Supply and Installation

of Submarine Gas Pipeline

 

Water Quality Monitoring Report

(Version 1.0)

 

May 2005

 

 

 

 

 

 

Approved By

 

(Project Director: Dr. HF Chan)

 

REMARKS:

 

The information supplied and contained within this report is, to the best of our knowledge, correct at the time of printing.

 

CINOTECH accepts no responsibility for changes made to this report by third parties.

 

 

CINOTECH CONSULTANTS LTD

Room 1602-1610, Delta House,

3 On Yiu Street,

Shatin, NT, Hong Kong

Tel: (852) 2151 2083    Fax: (852) 3107 1388

Email: info@cinotech.com.hk

 

 

Table of contents

 

 

EXECUTIVE SUMMARY.. 1

Introduction. 1

Environmental Monitoring Works. 1

Complaints and Prosecutions. 1

Future Key Issues. 1

1      INTRODUCTION.. 2

Background. 2

Project Organizations. 2

Construction Programme. 2

Summary of EM&A Requirements. 2

2      Water Quality Monitoring.. 3

3      ENVIRONMENTAL AUDIT.. 4

Implementation Status of Mitigation Measures. 4

Summary of Non-compliance of the Environmental Quality Performance Limit 4

Summary of Complaints and Prosecution. 4

4      CONCLUSIONS AND RECOMMENDATIONS.. 5

Conclusions. 5

 

 

lIST OF TABLES

 

Table 1.1        Key Contacts of ET-Cinotech

 

lIST OF Figures

 

Figure 1.1      Layout of the Submarine Gas Pipeline

 

lIST OF APPENDIces

 

A                                    Construction Phase Mitigation Measures and their Implementation (Gas Pipeline)

B                                    Complaint Log


List of Abbreviation

 

EIA

Environmental Impact Assessment

EM&A

Environmental Monitoring and Audit

ET

Environmental Team

GPS

Global Positioning System

GRS

Gas Receiving Station

HEC

Hong Kong Electric Co. Ltd

LNG

Liquefied Natural Gas

                       

 

 

 


EXECUTIVE SUMMARY

Introduction

 

1.        This is the fourth Environmental Monitoring and Audit (EM&A) Report prepared by Cinotech Consultants Limited (ET-Cinotech) for the project “Lamma Power Station Extension – Supply and Installation of Submarine Gas Pipeline” (the Project).  This document reported the findings of EM&A Works conducted in May 2005.

Environmental Monitoring Works

Water Quality

 

2.        Baseline environmental monitoring for the post-trenching works of the Project was carried out on 31st May 2005.  The results were reported in a stand alone document “Baseline Monitoring Report for Post-trenching Works”.

Complaints and Prosecutions

 

3.        No environmental complaint and prosecution were received during the reporting month.

 

Future Key Issues

 

4.        Post-trenching will be the major activities in the coming month. The anticipated environmental impact will be mainly on water quality.

 

 


1               INTRODUCTION

Background

1.1        Hong Kong Electric Holdings Ltd. (HEC) intends to develop a 1,800 MW power station in Hong Kong Special Administrative Region (HKSAR) to meet the forecast increase in electricity demand to cope with the social and economical growth of the HKSAR. The proposed power station will be located at reclaimed land in the south of the existing Lamma Power Station at the western edge of Lamma Island, termed Lamma Power Station Extension.

1.2        The proposed Power Station will use natural gas as fuel to generate electricity. The natural gas will be supplied from Guandong Liquefied Natural Gas (GD LNG) Terminal located at Cheng Tou Jiao of Shenzen PRC via a 20 inches diameter gas submarine pipeline.  Figure 1.1 shows the layout of the submarine gas pipeline.

1.3        HEC awarded Saipem Asia Sdn. Bhd. (hereafter called “the Contractor) for the design, engineering, supply of materials, fabrication, testing at works, delivery to site, complete erection including pre-trenching, pipe laying, rock dumping, testing and pre-commissioning at site, preservation during the Defects Liability Period of Submarine Gas Pipeline under to Project titled “Lamma Power Station Extension – Supply and Installation of Submarine Gas Pipeline” (hereinafter called “the Project”). Cinotech Consultants Limited was subsequently commissioned by the Contractor as the Environmental Team (ET-Cinotech) to provide environmental consultancy services and to undertake the Environmental Monitoring and Audit (EM&A) works for the Project.

1.4        The Project works include Pre-Trenching works, Pipe-Lay installation, Post-Lay Trenching (Jetting) and Rock Dumping works related to the installation of 92 km of 20 inches diameter Submarine Gas Pipeline between Guandong Liquefied Natural Gas Terminal (GD LNG) and the receiving point at Gas Receiving Station (GRS) at South-West of Lamma Extension on Lamma Island of Hong Kong – SAR.  

Project Organizations

1.5        Different parties with different levels of involvement in the project organization include:

·       Project Proponent –Hong Kong Electric Holdings Ltd. (HEC)

·       Contractor – Saipem Asia Sdn. Bhd.

·       Environmental Team (ET-Cinotech) – Cinotech Consultants Limited

 

1.6        The responsibilities of respective parties are detailed in Section 3 of the EM&A Requirements Review (Review) and the project organization chart is presented in Figure 3.1 of the Review. The key contacts of the ET-Cinotech are shown in Table 1.1.

Table 1.1                       Key Contacts of ET-Cinotech

Party

Name

Role

Phone No.

Fax No.

ET-Cinotech

Dr. Priscilla Choy

Project Manager of ET

2151 2089

3107 1388

Ms. Winniss Kong

Coordinator

2151 2068

3107 1388

Mr. Henry Leung

Monitoring Team Leader

2151 2087

3107 1388

 

Construction Programme

1.7        Post-trenching will be the major activities in the coming month. 

Summary of EM&A Requirements

1.8        The EM&A programme requires water quality monitoring during the dredging works of the Lamma Shore Approach and jetting operations.  No monitoring work was required in the reporting month.

1.9        Nevertheless, baseline environmental monitoring for the post-trenching works of the Project was carried out on 31st May 2005.  The results were reported in a stand alone document “Baseline Monitoring Report for Post-trenching Works”.


2               Water Quality Monitoring

2.1        No water quality monitoring was carried out in the reporting month. Baseline environmental monitoring for the post-trenching works of the Project was carried out on 31st May 2005.  The results were reported in a stand alone document “Baseline Monitoring Report for Post-trenching Works”.


3               ENVIRONMENTAL AUDIT

Implementation Status of Mitigation Measures

3.1        The implementation status of mitigation measures is summarized in Appendix A.

Summary of Non-compliance of the Environmental Quality Performance Limit

3.2        No non-compliance was recorded in the reporting month. 

Summary of Complaints and Prosecution

3.3        No environmental complaint and prosecution was received during the reporting month.  The complaint log for the works is provided in Appendix B.


4               CONCLUSIONS AND RECOMMENDATIONS

Conclusions

4.1        Baseline environmental monitoring for the post-trenching works of the Project was carried out on 31st May 2005.  The results were reported in a stand alone document “Baseline Monitoring Report for Post-trenching Works”.

4.2        Post-trenching will be the major activities in the coming month. The anticipated environmental impact will be mainly on water quality.