1
Introduction
The
Castle Peak Power Company Limited (CAPCO) is a joint venture between CLP Power
Hong Kong Limited (CLP) and China Southern Power Grid Company Limited with CLP
as the operator. ERM-Hong Kong, Limited (ERM) and Mott MacDonald Hong Kong Limited was appointed
by CAPCO as the Environmental Team (ET) and the Independent Environmental Checker (IEC),
respectively, to undertake the Environmental Monitoring and Audit (EM&A) activities
for the installation of CCGT Unit No. 1 of the Additional Gas-fired Generation Units Project at the Black Point Power
Station (BPPS) (“the Project”).
This is the fourth quarterly EM&A report which summarises the audit
findings during the reporting period from 1 September 2017 to 30 November 2017.
Section 1 : Introduction
It details the purpose and structure of the report.
Section 2 : Project Information
It summarises the background
and scope of the project, site description, project organisation and contact
details, construction programme, construction works undertaken and status of the
Environmental Permits/Licenses during the reporting period.
Section 3
: Environmental Monitoring
Requirement
It briefly introduces the environmental monitoring requirements
for the Project.
Section 4
: Implementation Status of
the Environmental Protection Requirements
It summarises the implementation of
environmental protection measures during the reporting period.
Section 5
: Monitoring Results
It summarises the monitoring results obtained in the reporting period.
Section 6
: Environmental Site Inspection
It summarises the audit findings of the weekly site inspections
undertaken within the reporting period.
Section 7
: Environmental
Non-conformance
It summarises any
monitoring exceedance, environmental complaints and summons within the
reporting period.
Section 8
: Conclusions
2
Project Information
The scope of the Project involves the
phased construction and operation of up to two additional combined cycle gas
turbine (CCGT) units (with an installed capacity of up to 600 MW each) at the
BPPS. The additional generation
units will be of CCGT configuration using natural gas as the primary fuel. It is a Designated Project under the Environmental Impact Assessment Ordinance
(Cap. 499) (EIAO).
The current EM&A
Programme only includes the CCGT Unit No. 1.
An
EIA of the Additional Gas-fired Generation Units Project was prepared in accordance
with the EIA Study Brief (No. ESB-286/2015) and the Technical Memorandum
of the Environmental Impact Assessment Process (EIAO-TM) and submitted
under the EIAO in February 2010. Subsequent
to the approval of the EIA (EIAO Register Number AEIAR-197/2016), an
Environmental Permit (EP-507/2016) (EP) for CCGT Unit No. 1 was granted by the
Director of Environmental Protection (DEP) on 14 June 2016. A Further Environmental Permit (FEP-01/507/2016)
(FEP) was granted to the Contractor, Chun Wo
Foundations Limited, of the CCGT Unit No. 1 on 9 December 2016. An Application for Variation of an Environmental Permit (No. VEP-531/2017) was submitted to EPD
on 28 July 2017 and the Variation of Environmental Permit (No.
EP-507/2016/A) was granted on 21 August 2017. A FEP (FEP-02/507/2016/A) was
granted to the Contractor, Leighton Contractors (Asia) Limited, of the CCGT
Unit No. 1 on 13 September 2017.
The proposed location for the Project is
within the existing boundaries of the BPPS site. The size of the land reserved for the
additional generation units and the associated facilities (the Project Site) is
about 40,000 m2.
Construction works for CCGT Unit No. 1 is currently ongoing at the
Project Site.
The location plan of key Project
components for CCGT Unit No.1 is shown in Annex A.
A summary of the major construction activities undertaken in this
reporting period is shown in Table 2.1. The construction programme is presented
in Annex B.
Table 2.1 Summary
of the Construction Activities Undertaken during the Reporting Period
|
Construction Activities undertaken
|
|
l
Excavation and
lateral support for drainage works;
l
Modification
of existing fire hydrant;
l
Manhole
construction;
l
Firefighting
pipe modification;
l
Installation
of E&M service and building service in new site office;
l
Traffic
barrier construction;
l
Installation
of LVSB at EL room;
l
Construction
of TX room;
l
Site
establishment;
l
Foundation and
substructure works at Power Island; and
l
Shaft
construction works for water cooling system.
|
2.4
Project
Organisation
The project organizational chart and
contact details are shown in Annex C.
2.5
Status of
Environmental Licences, Notification and Permits
A summary of the valid permits, licences, and/or notifications on
environmental protection for this Project during the reporting period is
presented in Table 2.2.
Table 2.2 Summary of the Status of
Valid Environmental Licence, Notification, Permit and Documentations
|
Permit/
Licences/ Notification
|
Reference
|
Validity Period
|
Remarks
|
|
Environmental Permit
|
EP-507/2016
|
Throughout
the Contract
|
Permit
granted on 14 Jun 2016
|
|
Variation of Environmental Permit
|
EP-507/2016/A
|
Throughout
the Contract
|
Permit
granted on 21 Aug 2017
|
|
Further Environmental Permit
|
FEP-01/507/2016
|
Throughout
the Contract
|
Permit
granted on 9 Dec 2016
|
|
Further Environmental Permit
|
FEP-02/507/2016/A
|
Throughout
the Contract
|
Permit
granted on 13 Sep 2017
|
|
Notification Pursuant to Section 3(1) of the Air
Pollution Control (Construction Dust) Regulation
|
410023
|
Throughout
the Contract
|
Notification received on 15 Nov 2016
|
|
|
417935
|
Throughout
the Contract
|
Notification received on 14 Jun 2017
|
|
|
417676
|
Throughout
the Contract
|
Notification received on 8
Jun 2017
|
|
Wastewater Discharge Licence
|
WT00026627-2016
|
To
31 Jan 2022
|
Cancelled
on 1 Oct 2017
|
|
|
WT00028829-2017
|
To
31 Oct 2022
|
Licence granted on 25 Oct 2017
|
|
Chemical Waste Producer Registration
|
5213-432-C3243-13
|
Throughout
the Contract
|
Registration
approved on 9 Jan 2017
|
|
|
5211-432-L2954-02
|
Throughout
the Contract
|
Registration
approved on 4 Jul 2017
|
|
Billing Account for Disposal of Construction Waste
|
7026814
|
Throughout
the Contract
|
Approved
on 30 Dec 2016
|
|
|
7028155
|
Throughout
the contract
|
Approved
on 23 Jun 2017
|
|
|
7028380
|
Throughout
the contract
|
Approved
on 26 Jul 2017
|
|
Construction Noise Permit
|
GW-RW0358-17
|
1
Aug 2017 – 31 Jan 2018
|
Cancelled
on 28 Sep 2017
|
|
GW-RW0493-17
|
28
Sep 2017 – 27 Mar 2018
|
Permit
granted on 15 Sep 2017
|
|
|
GW-RW0347-17
|
24
Jul 2017 - 30 Nov 2017
|
Cancelled
on 4 Oct 2017
|
|
|
GW-RW0511-17
|
4
Oct 2017 – 31 Jan 2018
|
Cancelled
on 28 Nov 2017
|
|
|
GW-RW0616-17
|
28
Nov 2017 – 28 Feb 2018
|
Permit
granted on 24 Nov 2017
|
3
Environmental Monitoring Requirement
In accordance with the EM&A Manual, monitoring works is required at a
frequency of once per week on first year of commissioning of the CCGT Unit No.1. The monitoring details including monitoring requirement, locations of monitoring stations will be confirmed and approved by EPD before commissioning of the CCGT Unit No.1.
4
Implementation Status of The environmental protection requirements
The Contractors have implemented all the environmental mitigation
measures and requirements as stated in the EIA Report, Environmental Permit
(EP) and EM&A Manual for the installation of CCGT Unit No.1. The mitigation measures recommended in
the EIA report and required by the EP are
considered effective in minimising environmental impacts. The implementation status of the
environmental mitigation measures for this Project during the reporting period
is summarised in Annex D.
The status of the required submissions under the EP for the Project
during the reporting period is presented in Table 4.1.
Table 4.1 Status
of Required Submissions under the Project
|
EP
Condition
|
Submission
|
Submission Date
|
|
Sections 15.1 & 15.5 of EM&A Manual
(AEIAR-197/2016)
|
3rd Quarterly EM&A Report
|
14
September 2017
|
|
Condition 3.2
under Environmental Permit No. EP-507/2016/A and FEP-02/507/2016/A.
|
9th Monthly
EM&A Report
|
14
September 2017
|
|
10th Monthly
EM&A Report
|
13
October 2017
|
|
11th Monthly
EM&A Report
|
10
November 2017
|
5
Monitoring Results
5.1
Waste Management
The waste generated from this Project includes inert construction
and demolition (C&D) materials, and non-inert C&D materials. Non-inert C&D materials are made up
of general refuse and recyclable wastes such as plastics and paper/cardboard
packaging waste. Steel materials
generated from the project are also grouped into non-inert C&D materials as
the materials were not disposed of with other inert C&D materials.
With reference
to relevant handling records and trip tickets of this Project, the quantities
of different types of waste generated in the reporting period are summarised in
Table 5.1. Details of
waste management data are presented in Annex E.
Table 5.1 Quantities of Waste
Generated from the Project
|
Reporting Month
|
Quantity
|
|
Inert C&D Materials (a) (b)
|
Chemical Waste (d)
|
Non-inert C&D Materials
|
|
General
Refuse (c)
|
Recycled materials
|
|
Paper/cardboard
|
Plastics
|
Metals
|
|
|
in
'000m3
|
in
'000 kg
|
in
'000m3
|
in
'000 kg
|
in '000 kg
|
in
'000 kg
|
|
September
2017
|
1.339
|
0.020
|
0.049
|
0
|
0
|
37.670
|
|
October
2017
|
0.988
|
0
|
0.041
|
0
|
0.747
|
42.620
|
|
November 2017
|
0.263
|
0
|
0.016
|
0
|
0
|
0
|
|
Total
|
2.590
|
0.020
|
0.106
|
0
|
0.747
|
80.290
|
|
Notes:
(a) Inert
C&D materials include bricks, concrete, building debris, rubble and
excavated spoil.
(b) The
inert C&D materials generated from the Project was sent to Tuen Mun Area 38 Fill Bank during the reporting period.
(c) General
refuse generated from the Project was sent to WENT
landfill during the reporting period.
(d)
Chemical waste includes waste oil. It is assumed density of waste oil to
be 0.8 kg/L.
|
The estimated amount of waste generated from the
Project predicted by EIA Report and the actual cumulative quantities of waste
generated from the construction phase of the Project during the reporting
period are presented in Table 5.2. Mitigation measures recommended in EIA
Report were implemented by the Contractor as far as practicable and were
considered effective in reducing the total quantity of wastes generated during
the reporting period.
Table
5.2 Comparison of
Estimated Amount of Waste
Generated for Construction of CCGT Unit No.1 and Actual Amount Generated during
the Reporting Period
|
Type of Material
|
Estimated Amount for Project
|
Actual Amount during Reporting Period
|
|
Total Amount of Inert C&D
Materials disposed as Public Fill (a) (in
'000m3)
|
80.96
|
2.590
|
|
Amount of Inert C&D
Materials Reused in the Contract (in
'000m3)
|
8.89
|
0
|
|
Amount of Inert C&D
Materials Reused in Other Projects (in
'000m3)
|
-
|
0
|
|
Total Amount of Non-Inert
C&D Materials and General Refuse disposed at WENT Landfill (b)
(in '000m3)
|
1.526
|
0.106
|
|
Chemical Waste (c)
(in ''000kg)
|
10.20
|
0.020
|
|
Notes:
(a) Inert
C&D materials include site clearance waste, excavated materials, building
works generated from construction of
CCGT
Unit No.1 for the entire project.
(b) Non-inert
C&D materials include site clearance waste, excavated materials, building
works generated from construction period of
CCGT
Unit No.1 for the entire project. The amount of general refuse was estimated 780
kg per day for construction of
CCGT
Unit No.1. There are 76 working days in the reporting period.
(c) The
total amount of chemical waste was estimated 3,400 kg per month. There are 3
months in the reporting period.
|
6
Environmental
Site Inspection
Joint weekly site
inspections were conducted by representatives of the Contractors, CAPCO Project
Team and ET on 7, 14, 21 and 28 September; 6, 12, 19
and 26 October;
and 2, 10, 17, 23 and 30 November
2017. The representative of the IEC
joined the site inspections on 21 September, 19 October and 17 November 2017. No non-compliance
was recorded during the site inspections.
Findings and recommendations
for the site inspections in this reporting period are summarised as follows:
7 September 2017
The Contractor (Chun Wo) was reminded to:
· pave the road section between the vehicle-wash area and the vehicular
exit of the site office works area; and
· direct
the untreated surface water back to the site.
The Contractor (Leighton) was reminded to:
· spray the area where dusty work takes place with water during the dusty
activities;
· install sufficient sprinklers for the general works area, especially
along the haul roads and at the exposed areas; and
· direct
the untreated surface water back to the site.
14 September
2017
The Contractor (Leighton) was reminded to install sufficient sprinklers for the
general works area, especially along the haul roads and at the exposed areas.
21 September 2017
The Contractor (Leighton) was reminded to:
· spray the area where dusty work takes place with water during the dusty
activities;
· provide wheel washing facilities at the exits of storage areas Area 4
and Area 5; and
· set
up some water storage tanks for watering purpose.
Regarding the planter audit, CAPCO was recommended to:
· enhance the watering regime for the planters;
· conduct regular checking and maintenance on the watering system; and
· conduct close
monitoring for PT945.
28 September
2017
The Contractor (Leighton) was reminded to:
· spray the area where dusty work takes place with water during the dusty
activities;
· set up some water storage tanks for watering purpose;
· install
more sprinklers at the works area near the Chun Wo containers.
· provide wheel washing facilities at the exit of storage areas Area 4 and
Area 5; and
· provide
dust suppression measure at storage area Area 4 and
cover the fencing with tarpaulin around the boundary.
6 October 2017
The Contractor (Leighton) was reminded to:
· spray the exposed areas with water regularly;
· install more sprinklers to cover more works area, such as the works area
near the Chun Wo containers;
· allocate sufficient resources for the wheels washing works at the
storage areas Area 4 and Area 5; and
· keep
the haul roads clear of dusty materials.
12 October 2017
The Contractor (Leighton) was reminded to:
· provide
impervious sheet to cover the materials during transport and not to load the
materials to a level higher than the side and tail boards;
· spray the dusty materials with water during loading;
· conduct regular maintenance of construction equipment deployed on-site;
and
· ensure
sufficient water is provided for watering activities.
19 October 2017
The Contractor (Leighton) was reminded to:
· keep the haul roads clear of dusty materials;
· cover the stockpiles at the Storage Area 5 entirely with impervious
sheets; and
· spray
the exposed area manually before the new water pipes are set up.
Regarding the planter audit, CAPCO was recommended to:
· carry out weeding and remove the exotic species Leucaena leucocephala from the planters; and
· conduct close
monitoring for BPT945.
26 October 2017
The Contractor (Leighton) was reminded to lower the water level or increase the
capacity of the wheel wash basin.
2 November 2017
The Contractor (Leighton) was reminded to:
· provide wheel washing facility at the exit of the Storage Area 4A; and
· keep
the hauls roads outside the Power Island works area, Storage Areas 4A and 5
clear of dusty materials and maintain the wheel wash basin with the deposited
silt and grit being removed regularly.
10 November 2017
The Contractor (Leighton) was reminded to provide impervious sheet to cover the
materials during transport.
17 November 2017
The Contractor (Leighton) was reminded to:
· open the gate of Storage Area 4A only for a particular type of vehicles
when necessary; and to designate a worker for wheel washing when the gate is
open;
· cover the temporary stockpiles of dusty materials entirely at the Power
Island works area;
· keep the haul roads between the Power Island works area and Storage
Areas 4A and 5 clear of dusty materials; and
· maintain
good housekeeping at the Storage Area 4A and provide enclosed bins for storage
of general refuse.
Regarding the planter audit, CAPCO was recommended to:
· replace BPT774 after construction period;
· remove the fallen tree trunk of BPT786; and
· conduct close
monitoring for BPT945.
23 November 2017
The Contractor (Leighton) was reminded to:
· remove the oil stain at the Storage Area 4A and handle the clean up materials as chemical waste; and
· replace
the dusty geotextile of the gully outside Storage Area 5.
30 November 2017
The Contractor (Leighton) was reminded to keep the chemical waste storage area secured
and locked at all times.
All follow-up actions requested
by
ET and IEC during the site inspections were undertaken as reported by CAPCO and
the Contractors. The abovementioned
environmental issues had been addressed and mitigated during the reporting
period.
7
Environmental Non-conformance
No environmental monitoring is required
during construction of CCGT Unit No. 1.
No non-compliance event was recorded during the reporting period.
No environmental complaint was received during the reporting period.
No summon or prosecution was received during the
reporting period.
8
Conclusions
This fourth quarterly Environmental Monitoring
and Audit (EM&A) Report presents the EM&A works undertaken during the
period from 1 September 2017 to 30 November 2017 in accordance with the EM&A Manual and the requirements of EP-507/2016, EP-507/2016/A,
FEP-01/507/2016 and
FEP-02/507/2016/A.
No non-compliance event was recorded during the reporting period.
No environmental complaint, summon
or prosecution was received during the reporting period.
The Contractors have implemented possible and feasible mitigation
measures to mitigate the potential environmental impacts during construction. The ET will continue to keep track of the
EM&A programme to ensure compliance of environmental requirements and the
effectiveness and efficiency of the mitigation measures implemented. If necessary, the Contractors will
provide more mitigation measures to further alleviate the impacts.
