4.1.1
In accordance with Clause 3.4.4.1 of the EIA Study
Brief (No. ESB-274/2014), relevant hazard to life assessment findings
related to the Project should be reviewed in order to determine whether an
updated hazard to life assessment in the EIA study is necessary. If
an updated hazard to life assessment is required to be carried out, technical
assessment requirements stipulated in Clauses 3.4.4.2 to 3.4.4.4 of the EIA
Study Brief should be followed.
4.2.1
The
estimated risk levels of the hazardous sources shall be compared with the risk
guidelines stipulated in the EIAO-TM Annex 4 to determine the acceptability. As set out in Annex 4 of the EIAO-TM, the risk guidelines
comprise individual risk guideline and societal risk guidelines. For
individual risk, maximum level of off-site individual risk should not exceed 1
in 100 000 per year (i.e.1x10-5 /year). The societal risk guidelines
for acceptable risk levels assessment criteria is also defined in Figure 1 in
Annex 4 of the EIAO-TM as provided in Appendix 4.1.
4.3.1
The EIA
Report “Comprehensive Feasibility Study
for The Revised Scheme of South East Kowloon Development” was completed in
mid-2001 and approved on 25 September 2001 (No.: AEIAR-044/2001) for
the comprehensive feasibility study for the revised scheme of South East
Kowloon Development. Since the
report was prepared in 2001, an update was conducted by the Kai Tak Development
(KTD) EIA as mentioned below.
4.3.2
The KTD EIA Report was completed in 2008 and
approved on 4 March 2009 (No.: AEIAR-130/2009) for the “Kai Tak Development
Engineering Study cum Design and Construction of Advance Works – Investigation,
Design and Construction”. It falls under Item 1 Schedule 3 of the
EIAO. The Project site was included under this study.
4.3.3
According to the Hazard to Life Assessment in the
KTD EIA, several hazardous sources were identified as shown in Table 4-1 below. The locations of
identified hazardous facilities shown in Figure 11.1.1 of the KTD EIA report is
also provided in Appendix
4.2 for reference.
Table
4-1 Hazardous Sources Identified in
the Kai Tak Development EIA Report
|
Hazardous
Sources |
Locations |
Remarks |
Distance
to the nearest Project Site Boundary (m) |
|
Ma Tau
Kok Gas Works (North Plant) and its associated facilities |
To Kwa
Wan Road, Ma Tau Kok |
A designated PHI due to storage
of more than 15 tonnes of Town Gas, with a Consultation Zone (CZ) of 300m
radius from the mid. point between the two gas holders of the North Works. Associated facilities include
the gas pigging station, naphtha unloading jetty, pressure regulating
station, landing point for the two 400mm diameter submarine gas pipelines and
other operational related facilities situated at the seafront site just next
to the Kowloon City Ferry Pier. According to the EIA Report (No. AEIAR-153/2010) Installation of Submarine
Gas Pipelines and Associated Facilities from To Kwa Wan to North Point for
Former Kai Tak Airport Development, the existing twin 400mm diameter
submarine gas pipelines were proposed to be diverted. The Ma Tau Kok gas
pigging station shall be relocated close to the existing DSD To Kwa Wan Sewage
Treatment Works (about 700m further away from the Project site in compare
with the existing pigging station location) |
~400m
from the North Plant; ~350m from the Pigging station |
|
Chlorine
Dock |
Cheung
Yip Street, Kowloon Bay |
It is
confirmed in the approved KTD EIA Report that there
is plan to decommission and relocate the existing chlorine dock outside the
project boundary of Kai Tak Development prior to the future land uses of the
KTD Project. Hazard assessment of this hazard source is not required. |
N/A |
|
DGV
Ferry Pier |
Kwun
Tong |
A
ferry pier for DG ferries carrying dangerous goods vehicles. |
>
2500m |
|
Kerry
DG Warehouse (Kowloon Bay) |
7 Kai
Hing Road, Kowloon Bay |
A DG
warehouse for storage of dangerous goods. |
>1500m |
|
Petrol
cum LPG Filling Stations and Dedicated LPG Filling Stations |
Within
or in Vicinity to KTD Area |
Address
of the Petrol cum LPG Filling Stations are: ·
Wang Chin Street, Kowloon Bay ·
Kai Fuk Road, Kowloon Bay
(West Bound) ·
8 Kai Fuk Road, Kowloon Bay
(West Bound) ·
7 Kai Fuk Road, Kowloon Bay
(East Bound) ·
Kai Fuk Road, Kowloon Bay
(East Bound) ·
Address of the Dedicated LPG
Filling Stations area: ·
Wai Lok Street, Kwun Tong ·
Cheung Yip Street, Kowloon Bay |
>480m
to >1300m |
|
Explosives
Storage and Blasting Operations for KTD |
Express
within KTD Area |
It is
confirmed in the KTD EIA Report that no explosives would be used for
the construction activities. |
N/A |
Ma Tau Kok Gas Works North Plant (MTKGWNP)
4.3.4
The MTKGWNP is one of the Towngas production plants
in Hong Kong and is classified as a Potentially Hazardous Installation (PHI)
which is located adjacent to part of the planning area of the KTD. The plant is
located at To Kwa Wan Road with Ma Tau Kok Road and San Shan Road to the
northeast and southwest of its boundary respectively.
4.3.5
The Ma Tau Kok Gas Works (North Plant) is located
over 400m from the nearest boundary of the Project and hence the whole Project
site is outside the 300m Consultation Zone (CZ) of the PHI.
4.3.6
In addition to the gas production plant, there are
other associated gas facilities in Ma Tau Kok which are over 350m from the
Project boundary. These include the gas pigging station, naphtha-unloading
jetty, pressure regulating station, landing point for the two 400mm diameter submarine
gas pipelines and other operational related facilities situated at a seafront
site just next to the Kowloon City Ferry Pier. According to the approved EIA
Report (No. AEIAR-153/2010) “Installation
of Submarine Gas Pipelines and Associated Facilities from To Kwa Wan to North
Point for Former Kai Tak Airport Development”, the existing twin 400mm
diameter submarine gas pipelines were proposed to be diverted. The Ma Tau Kok
gas pigging station shall be relocated close to the existing DSD To Kwa Wan
Sewage Treatment Works where the new proposed location is over 900m from the
Project site.
4.3.7
Potential hazards associated unloading, storage and
processing of liquid Naphtha during the gas production process and the hazards
related to storage and transmission of Towngas were identified in the approved
KTD EIA Report. Hazardous scenarios include pool fire, jet fire, flash fire,
fireball, and bund fire were considered.
4.3.8
Assessment results in the approved KTD EIA report
indicated that the 10-5 per year individual risk contour is located
inside the boundary of the MTKGWNP. The Project site is located far away from
the 10-9 per year individual risk contour and thus the potential
risk on the Project is minimal. Since the population of the Project is outside
the Consultation Zone of the PHI, the societal risk results in the approved KTD
EIA report would not be affected by the Project and the results and conclusion
in the approved KTD EIA report are still valid for the Project. The KTD EIA mentioned that the individual risk of the PHI is in
compliance with the TM criteria and the societal risk level can be reduced as
low as practicable for meeting requirements stipulated in the Hong Kong Risk
Guidelines.
Chlorine Dock/ DGV Ferry Pier / Kerry DG Warehouse
(Kowloon Bay)
4.3.9
It is confirmed in the approved KTD EIA Report that
the chlorine dock is
confirmed to be decommissioned and relocated outside the project boundary of
KTD prior to future development. Therefore,
hazard arising from the Chlorine Dock is not considered. The DGV Ferry Pier and
the Kerry DG Warehouse are located over 1.5km away from the Project site.
Referring to the assessment results in the approved EIA report, the Project
site is located far away from the 10-9 per year individual risk contour.
No potential hazard on the Project is anticipated.
Petrol cum LPG Filling Stations and Dedicated LPG
Filling Stations
4.3.10
The study area of 150m radius from the petrol cum
LPG station / dedicated LPG station is adopted in the approved KTD EIA Report. It
is consistent with other approved EIA studies where 150m study area of the LPG
sites was considered. Since the nearest station is about 480m away from the
Project site, no potential hazard on the Project arising from the petrol/LPG
stations within or in vicinity of KTD is anticipated.
Explosives Storage and Blasting Operations for KTD
4.3.11
It is confirmed in the approved KTD EIA Report that
no explosives would be used for the construction activities in the KTD. No
blasting operation is required for the Project. Therefore, hazard arising from
the explosives storage or blasting operations for KTD/the Project construction
is not considered.
4.4.1
Based on the latest available information (including
on-site survey and review of OZPs and the latest Recommended Outline
Development Plan), no new potentially hazardous installation (PHI)
is proposed in the KTD area, and all existing/planned hazardous
sources within or in vicinity of KTD have been considered in the approved EIA
report for the KTD.
4.5.1
Hazard to Life Assessment in KTD area was fully
addressed in the approved Schedule 3 EIA Report for Kai Tak Development
(Register No.: AEIAR-130/2009). It has been concluded that no adverse hazard to
life impact on the future occupants of the KTD is anticipated. Based on the
latest available information, no new PHI is proposed in KTD area and all
existing/planned hazardous sources within or in vicinity of KTD were considered
in the approved KTD EIA report. The project site falls outside all the
Consultation Zones / study areas of the identified hazardous sources. Hence,
the findings of the
hazard to life assessment related to the Project in the approved EIA report for
the KTD remain valid, i.e. adverse potential hazard to life impact
during the construction and operation on the Project is not anticipated, and no further hazard to life assessment is
required.