6. SUMMARY OF MONITORING EXCEEDANCE, COMPLAINTS, NOTIFICATION OF SUMMONS AND PROSECUTIONS............................................................................................................................................................. 19
Appendix A Master Programme
Appendix B Overview of Desalination Plant in Tseung Kwan O
Appendix C Summary of Implementation Status of
Environmental Mitigation
Appendix D Impact
Monitoring Schedule of the Reporting Period
Appendix E Event/Action Plan for Noise Exceedance
Appendix F Event/Action Plan for Water Quality Exceedance
Appendix G Waste Flow Table
Appendix H Complaint Log
INTRODUCTION
A1. The Project, Design, Build and Operate First Stage of Tseung Kwan O Desalination Plant (TKODP), is a Designated Project under the Environmental Impact Assessment Ordinance (Cap. 499) (EIAO) and is currently governed by a Further Environmental Permit (EP No. FEP - 01/503/2015/A) for the construction and operation of the Project.
A2. In accordance with the Updated Environmental Monitoring and Audit (EM&A) Manual for the Project, EM&A works for marine water quality, noise, waste management and ecology should be carried out by Environmental Team (ET), Acuity Sustainability Consulting Limited (ASCL), during the construction phase of the Project.
A3. This is the 4th Quarterly EM&A Report, prepared by ASCL, for the Project summarizing the monitoring results and audit findings of the EM&A programme at and around Tseung Kwan O Area 137 (TKO 137) during the reporting period from 1 Dec 2020 to 28 Feb 2021.
A4. The EM&A programme for this contract has covered environmental monitoring on construction noise level at selected NSRs and Contractor¡¦s environmental performance auditing in the aspects of construction dust, construction noise, water quality, waste management, Landscape and Visual and Ecology.
SUMMARY OF MAIN
WORKS UNDERTAKEN
& KEY
MITIGATION MEASURES IMPLEMENTED
A5. Key activities carried out in this reporting period for the Project included the followings:
- Land Survey;
- Access Road Construction;
- Construction of 132kV substation, internal finishing and E&M installation;
- Construction of ActiDAFF footing, perimeter wall and water tank;
- Excavation and construction of RO/electrical building footing and ground floor slab;
- Excavation and installation of temporary soil nail for Product Water Storage Tank;
- Construction for Product Water Storage Tank footing and perimeter wall;
- Excavation and ELS installation for Combined Shaft Area;
- Installation of socketed H pile, pile load test and footing construction at administration building;
- Excavation and construction of footing at post treatment building;
- Excavation of 11kV substation;
- Construction of Main electrical and chiller plant building
A6. The major environmental impacts brought by the above construction works include:
- Construction dust and noise generation from the construction and excavation works, installation of soil nails, sheet piling works and ELS works;
- Waste generation from the construction activities
A7. The key environmental mitigation measures implemented for the Project in this reporting period associated with the above construction works include:
- Dust suppression by regular wetting and water spraying for construction works
- Dust suppression by covering dusty materials with tarpaulin sheet
- Reduction of noise from equipment and machinery on-site
- Sorting and storage of general refuse and construction waste
SUMMARY OF EXCEEDANCE & INVESTIGATION
& FOLLOW-UP
A8. No noise monitoring was conducted during the reporting period since there are no project- related construction activities undertaken within a radius of 300m from the monitoring locations. No project-related exceedance of the Action Level was recorded during the reporting period.
A9. No impact water quality monitoring was conducted in the reporting period since the commencement of marine construction and dredging activities for the Project are scheduled in March 2021 the earliest. No project-related exceedance of the Action Level was recorded during the reporting period.
A10. Weekly site inspections of the construction works were carried out by ET to audit the mitigation measures implementation status. Bi-weekly joint site inspections were carried out by ET and IEC.
COMPLAINT HANDLING AND PROSECUTION
A11. No project-related environmental complaint was received during the reporting period.
A12. Neither notifications of summons nor prosecution was received for the Project.
REPORTING CHANGE
A13. There was no change to be reported that may affect the on-going EM&A programme.
1.1.
BACKGROUND
The Jardine Engineering Corporation Limited, China State Construction Engineering (Hong Kong) Limited and Acciona Agua, S.A. Trading As AJC Joint Venture (AJCJV) is contracted to carry out the Design, Build and Operate First Stage of Tseung Kwan O Desalination Plant (DPTKO) under Contract No. 13/WSD/17 (the Project).
Acuity Sustainability Consulting Limited (ASCL) is commissioned by AJCJV to undertake the Environmental Team (ET) services as required and/or implied, both explicitly and implicitly, in the Environmental Permit (EP), Environmental Impact Assessment Report (EIA Report) (Register No. AEIAR-192/2015) and Environmental Monitoring and Audit Manual (EM&A Manual) for the Project; and to carry out the Environmental Monitoring and Audit (EM&A) programme in fulfillment of the EIA Report¡¦s EM&A requirements and Contract No. 13/WSD/17 Specification requirements.
Pursuant to the Environmental Impact Assessment Ordinance (EIAO), the Director of Environmental Protection granted the Environmental Permit (No. EP-01/503/2015) and Variation of Environmental Permit (No. EP-01/503/2015/A) to Water Supplies Department (WSD); and granted the Further Environmental Permit (No. FEP-01/503/2015/A) to AJCJV for the Project.
1.2.
THE REPORTING SCOPE
This is the 4th Quarterly EM&A Report for the Project which summarizes the key findings of the EM&A programme during the reporting period from 1 Dec 2020 to 28 Feb 2021.
1.3.
PROJECT ORGANIZATION-
The Project Organization structure for Construction Phase is presented in Figure 1.1.
Contact details of the key personnel are presented in Table 1.1 below:
Party |
Position |
Name |
Telephone no. |
Project Proponent |
SE/CM2 |
Benny Lam |
2634-3573 |
Supervising Officer (Black
& Veatch) |
Project Manager |
Christina Ko |
2608-7302 |
Chief Resident Engineer |
Roger
Wu |
6343-1002 |
|
The Jardine
Engineering Corporation, Limited,
China State Construction Engineering
(Hong Kong) Limited and Acciona Agua,
S.A. Trading |
Project Manager |
Stephen Yeung |
2807-4665 |
Environmental Monitoring Manager |
Brian
Kam |
9456-9541 |
|
Acuity
Sustainability Consulting Limited |
Environmental Team Leader |
Jacky Leung |
2698-6833 |
ANewR Consulting Limited |
Independent Environmental Checker (IEC) |
Louis Kwan |
2618-2831 |
1.4.
SUMMARY OF CONSTRUCTION
WORKS
Details of the major construction activities undertaken in this reporting period are shown in below. The construction programme is presented in Appendix A.
Key activities carried out in this reporting period for the Project included the following:
- Land Survey;
- Access Road Construction;
- Construction of 132kV substation, internal finishing and E&M installation;
- Construction of ActiDAFF footing, perimeter wall and water tank;
- Excavation and construction of RO/electrical building footing and ground floor slab;
- Excavation and installation of temporary soil nail for Product Water Storage Tank;
- Construction for Product Water Storage Tank footing and perimeter wall;
- Excavation and ELS installation for Combined Shaft Area;
- Installation of socketed H pile, pile load test and footing construction at administration building;
- Excavation and construction of footing at post treatment building;
- Excavation of 11kV substation;
- Construction of Main electrical and chiller plant building
1.5.
SUMMARY OF ENVIRONMENTAL
STATUS
A summary of the valid permits, licences, and /or notifications on environmental protection for this Project is presented in Table 1.2.
Table 1.2 Summary of the Status of Valid Environmental Licence,
Notification, Permit and Documentations
Permit/
Licenses/ Notification |
Reference |
Validity Period |
Remarks |
Environmental Permit |
FEP - 01/503/2015/A |
Throughout the Contract |
|
Notification of Construction Works under the Air Pollution Control (Construction Dust) Regulation (Form NA) |
Ref. No.: 451539 |
30/12/2019 - 30/03/2023 |
|
Wastewater Discharge Licence |
WT00035775-2020 |
24/07/2020 - 31/07/2025 |
|
Chemical Waste Producer Registration |
5213-839-A2987-01 |
Throughout the Contract |
|
Construction Noise Permit (24 hours) |
GW-RE0474-20 |
04/06/2020 - 03/12/2020 |
|
GW-RE0784-20 |
01/10/2020 - 31/03/2021 |
||
Billing Account for Disposal of Construction Waste |
7036276 |
Throughout the Contract |
|
The status for all environmental aspects is presented in Table 1.3.
Parameters |
Status |
Water
Quality |
|
Baseline Monitoring under EM&A Manual |
The baseline water quality monitoring was
conducted between 12 May 2020 and 6 June 2020 |
Impact Monitoring |
The impact water
quality monitoring has been scheduled after the
commencement of marine construction works |
Noise |
|
Baseline Monitoring |
The baseline noise monitoring result
has been reported in Baseline
Monitoring Report and submitted to EPD under EP Condition 3.4 |
Impact Monitoring |
On-going |
Waste
Management |
|
Mitigation
Measures in Waste Monitoring Plan |
On-going |
Environmental Audit |
|
Site Inspection covering Measures of Air Quality, Noise Impact, Water Quality, Waste,
Ecological Quality, Fisheries, Landscape and
Visual |
On-going |
Other than the EM&A work by ET, environmental briefings, trainings and regular environmental management meetings were conducted, in order to enhance environmental awareness and closely monitor the environmental performance of the contractors.
The EM&A programme has been implemented in accordance with the recommendations presented in the approved EIA Report and the EM&A Manual. A summary of implementation status of the environmental mitigation measures for the construction phase of the Project during the reporting period is provided in Appendix C.
2.1.
MONITORING REQUIREMENTS
To ensure no adverse noise impact, noise monitoring is recommended to be carried out within 300m radius from the nearby noise sensitive receivers (NSRs), during construction phase. The NSRs selected as monitoring station are (i) NSR4 - Creative Secondary School, (ii) NSR24 - PLK Laws Foundation College, and (iii) NSR31 - School of Continuing and Professional Studies - CUHK respectively.
In accordance with the EM&A Manual, baseline noise level at the noise monitoring stations were established as presented in the Baseline Monitoring Report. Impact noise monitoring will be conducted once per week in the form of 30-minutes measurements Leq, L10 and L90 levels recorded at each monitoring station between 0700 and 1900 on normal weekdays.
Referring to EM&A manual Section 4.1.2, the impact noise monitoring should be carried out at all the designated monitoring stations when there are project-related construction activities undertaken within a radius of 300m from the monitoring stations.
No impact monitoring for noise impact was conducted in the reporting period due to the overly distant monitoring station from the works location, where they were farther than 1 km from the closet monitoring station NSR4 to the works location.
Construction noise level measured in terms of the A-weighted equivalent continuous sound pressure level (LAeq). Leq 30min was used as the monitoring parameter for the time period between 0700 and 1900 on normal weekdays. Table 2.1 summarizes the monitoring parameters, frequency and duration of the impact noise monitoring.
Time |
Duration |
Interval |
Parameters |
|||
Daytime: 0700-1900 |
Day time: 0700-1900 (during weekdays) |
normal |
Continuously in Leq 5min/Leq 30min (average of 6 consecutive Leq 5min) |
Leq L10 |
30min 30min & L90 |
30min |
2.2.
MONITORING LOCATIONS
The monitoring locations should normally be made at a point 1m from the exterior of the NSRs building façade and be at a position 1.2m above the ground. A correction of +3dB(A) should be made to the free-field measurements.
According to the environmental findings detailed in the EIA report and Baseline Monitoring Report, the designated locations for the construction noise monitoring are listed in Table 2.2 below.
NSR ID |
Noise Sensitive Receivers |
Monitoring Location |
Position |
NSR 4 |
Creative Secondary School |
Roof Floor |
1 m from facade |
NSR 24 |
PLK Laws Foundation College |
Pedestrian Road on Ground Floor |
Free-field |
NSR 31 |
School of Continuing and Professional Studies - CUHK |
Roof Floor |
1 m from facade |
The monitoring locations should normally be made at a point 1m from the exterior of the NSRs building façade and be at a position 1.2m above the ground. A correction of +3dB(A) should be made to the free-field measurements. Three noise monitoring locations for impact monitoring at the nearby sensitive receivers are shown in Figure 2.1-2.3.
|
|
|
|
Figure 2.1 NSR4
Creative Secondary School |
|
|
|
|
|
Figure 2.2 NSR24 PLK
Laws Foundation College |
|
|
|
|
||
|
Figure 2.3 NSR31 School of Continuing
and Professional Studies - CUHK |
|
|
|
.
2.3.
ACTION AND LIMIT LEVELS
The Action/Limit Levels are in line with the criteria of Practice Note for Professional Persons (ProPECC PN 2/93) ¡§Noise from Construction Activities - Non-statutory Controls¡¨ and Technical Memorandum on Environmental Impact Assessment Process issued by HKSAR Environmental Protection Department [¡§EPD¡¨] under the Environmental Impact Assessment Ordinance, Cap 499,
S.16 are presented in Table 2.3.
Time Period |
Action Level |
Limit Level (dB(A)) |
0700-1900 on normal weekdays |
When one documented complaint is received from any one of the noise sensitive receivers |
¡P 70 dB(A) for school and ¡P 65 dB(A) during examination period |
Notes: Limits specified in the GW-TM
and IND-TM for construction and operation noise,
respectively.
If exceedances were found during noise monitoring, the actions in accordance with the Event and Action Plan shall be carried out according to Appendix E.
2.4.
MONITORING RESULTS AND OBSERVATIONS
Referring to EM&A manual Section 4.1.2, the impact noise monitoring should be carried out when there are project-related construction activities undertaken within a radius of 300m from the monitoring stations. No monitoring station was located within a radius of 300m of the Project site as shown in Figure 2.4, no impact monitoring for noise impact was conducted in the reporting period.
In accordance with the recommendations of the EIA, water quality EM&A is required during dredging for the submarine pipelines and, during operation phase. In addition, baseline water quality monitoring will be required prior to the commencement of marine construction activities. The following Section provides details of the water quality monitoring to be undertaken by the Environmental Team (ET) to verify the distance of sediment and brine plume dispersion and to identify whether the potential exists for any indirect impacts to occur to ecological sensitive receivers. The water quality monitoring programme will be carried out to allow any deteriorating water quality to be readily detected and timely action taken to rectify the situation. The status and locations of water quality sensitive receivers and the marine works location may change after issuing this Document. If required, the ET in consultation with IEC will propose updated monitoring locations and seek approval from EPD.
Water quality monitoring for the Project can be divided into the following stages:
-
Dredging activities during construction phase;
-
Discharge of effluent from main disinfection during construction phase;
-
Operation phase
- first year upon commissioning; and,
-
Continuous monitoring of effluent quality.
In addition, the marine works contractor is required to complete a silt curtain efficiency test for the combined use of floating silt curtain type and cage type silt curtain for dredging at seawater intake to confirm the silt curtain reduction efficiency assumptions of the assessment. The details of testing plan together with the silt curtain deployment plan updated testing plan shall be submitted by the ET to seek approval from the IEC and EPD.
3.1.
IMPACT MONITORING METHODOLOGY
3.1.1.
WATER QUALITY PARAMETERS
The parameters that have been selected for measurement in situ and in the laboratory are those that were either determined in the EIA to be those with the most potential to be affected by the construction works or are a standard check on water quality conditions. Parameters to be measured in the baseline monitoring are listed in Table 3.1.
Parameters |
Unit |
Abbreviation |
In-situ measurements |
||
Dissolved oxygen |
mg/L |
DO |
Temperature |
oC |
- |
pH |
- |
- |
Turbidity |
NTU |
- |
Salinity |
0/00 |
- |
Total Residual Chlorine NOTE1 |
mg/L |
TRC |
Laboratory measurements |
||
Suspended Solids |
mg/L |
SS |
Iron-Soluble NOTE2 |
mg/L |
Fe |
Anti-scalant as Reactive Phosphorus
NOTE2 |
mg/L |
PO4 as P- |
NOTE 1: Monitoring of TRC will be conducted when cleaning and sterilization of the new freshwater main is carried out.
NOTE 2: The testing methods shall be submitted to EPD for approval prior to the commencement of monitoring programme
In addition to the water quality parameters, other relevant data will also be measured and recorded in Water Quality Monitoring Logs, including the location of the sampling stations, water depth, time, weather conditions, sea conditions, tidal stage, current direction and velocity, special phenomena and work activities undertaken around the monitoring and works area that may influence the monitoring results.
3.1.2. MONITORING LOCATION
The water quality monitoring locations for baseline in accordance to the EM&A Manual and Contract Specification are shown in Figure 3.1 respectively, and detailed in Table 3.2 below. A schedule for water quality monitoring shall be prepared by the ET and approved by IEC and EPD prior to the commencement of the monitoring.
Station |
Easting |
Northing |
Description |
CE |
843550 |
815243 |
Upstream control station at ebb tide |
CF |
846843 |
810193 |
Upstream control station at flood tide |
WSR1 |
846864 |
812014 |
Ecological sensitive receiver at Tung Lung Chau |
WSR2 |
847645 |
812993 |
Fisheries sensitive receiver at Tung Lung Chau |
WSR3 |
848023 |
813262 |
Ecological sensitive receiver at Tung Lung Chau |
WSR4 |
847886 |
814154 |
Ecological sensitive receiver at Tai Miu Wan |
WSR16 |
845039 |
815287 |
Ecological sensitive receiver at Fat Tong Chau |
WSR33 |
847159 |
814488 |
Ecological sensitive receiver at Tai Miu Wan |
WSR36 |
846878 |
814081 |
Ecological sensitive receiver at Kwun Tsai |
WSR37 |
846655 |
813810 |
Ecological sensitive receiver at Tit Cham Chau |
NF1 |
846542 |
813614 |
Edge of mixing zone, ~ 200m west of outfall diffuser |
NF2 |
846942 |
813614 |
Edge of mixing zone, ~ 200m east of outfall diffuser |
NF3 |
846742 |
813414 |
Edge of mixing zone, ~ 200m south of outfall diffuser |
WSR1 to WSR37 were identified in accordance with Annex 14 of the EIAO-TM as well as Clause
3.4.4.2 of the Environmental Impact Assessment Study Brief for Desalination Plant at Tseung Kwan O (No. ESB-266/2013). WSR1 to WSR3 are sited near the Tung Lung Chau Fish Culture Zone; WSR16 and WSR36 are sited near the coral assemblages along the coastlines of Fat Tong Chau and Kwun Tsai respectively; WSR 4 and WSR33 are sited near the Coastal Protection Area and coral assemblages in waters of Tai Miu Wan; WSR37 is sited near the fisheries resource including spawning and nursery grounds at the coastal water of Tit Cham Chau.
y.
3.2.
MONITORING PROGRAMME
The ET of the Project had conducted the baseline water monitoring between 12 May 2020 to 6 June 2020 at the thirteen designated monitoring stations and the six designated monitoring at waters near TKO in accordance with the EM&A Manual and Contract Specification respectively. The monitoring results was presented in Baseline Water Quality Monitoring Report separately.
The commencement of marine construction and
dredging activities for the Project are scheduled in March 2021 the earliest. The impact water monitoring shall be
scheduled after the commencement of
marine construction and dredging activities. Hence, no impact water monitoring
was conducted during the reporting period.
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, vegetative wastes 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 month are summarised
in Table 4.1. Details of cumulative
waste management data are presented as a waste
flow table in Appendix G.
Reporting Months |
Actual Quantities of Inert
C&D Materials Generated Monthly |
Actual Quantities of C&D Wastes
Generated Monthly |
|||||||||
Total Quantity Generated |
Hard Rock and Large Broken Concrete |
Reused in the
Contract |
Reused in other
Projects |
Disposed as Public Fill |
Imported Fill |
Metals |
Paper / cardboard packaging |
Plastics (see
Note) |
Chemical Waste |
Others, e.g. general
refuse |
|
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
|
Dec 2020 |
0 |
0 |
0 |
12860.314 |
0 |
0 |
9.912 |
0.030 |
0.018 |
0 |
63.92 |
Jan 2021 |
11823.060 |
0 |
0 |
11816.130** |
6.930 |
0 |
0 |
0 |
0 |
0 |
73.96 |
Feb 2021 |
0 |
0 |
0 |
0* |
0 |
0 |
0.007 |
0.123 |
0.008 |
0 |
45.080 |
Notes: (1) Plastics
refer to plastic
bottles / containers, plastic sheets / foam
from packaging material
* The data will be
updated in the next reporting
quarter.
** The data was updated in February 2021 report
5.1.
MONITORING REQUIREMENT
In accordance with Section 11 of the EM&A Manual, monitoring of landfill gas is required for construction works within the 250m Consultation Zone. Part of the desalination plant and the indicative area of natural slope mitigation works fall within the SENT Landfill Extension Consultation Zone; and part of the 1,200 mm diameter fresh water mains along Wan Po Road falls within the SENT Landfill and SENT Landfill Extension Consultation Zones, TKO Stage II/III Restored Landfill and TKO Stage I Restored Landfill Consultation Zones.
5.2.
MONITORING LOCATION
Monitoring of oxygen, methane, carbon dioxide and barometric pressure was performed for excavations at 1m depth or more within the consultation Zone.
During construction of works within the consultation zones, excavations of 1m depth or more was monitored:
- At the ground surface before excavation commences;
- Immediately before any worker enters the excavation;
- At the beginning of each working day for the entire period the excavation remains open; and
- Periodically through the working day whilst workers are in the excavation.
For excavations between 300mm and 1m deep, measurements should be carried out:
- Directly after the excavation has been completed; and
- Periodically whilst the excavation remains open.
5.3.
MONITORING PROGRAMME
For the part of the desalination plant and the indicative area of natural slope mitigation works fall within the SENT Landfill Extension Consultation Zone in this contract. Since the SENT Landfill Extension is still under construction, the Landfill gas monitoring shall be conducted after the commencement of operation of the SENT Landfill Extension which will be 2021 Quarter 3 according to the latest construction programme shown in the monthly EM&A Report of SENT Landfill Extension. The Contractor¡¦s safety officer shall keep review the necessity of landfill gas monitoring during the construction stage. No landfill gas monitoring was conducted in the reporting period.
The Environmental Complaint Handling
Procedure is shown in below Figure 6.1:
No noise monitoring was conducted during the reporting period since there are no project-related construction activities undertaken within a radius of 300m from the monitoring locations.
The baseline water monitoring had been conducted between 12 May 2020 to 6 Jun 2020 at the thirteen designated monitoring stations and the six designated monitoring at waters near TKO. No impact water quality monitoring was conducted in the reporting period since the commencement of marine construction and dredging activities for the Project are scheduled in March 2021 the earliest.
No project-related exceedance of the Action Level was recorded during the reporting period. No notification of summons and prosecution was received in the reporting period.
Statistics on complaints and regulatory compliance are summarized in Appendix H.
Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures under the Contract.
Joint site inspection with IEC was carried out on a bi-weekly basis.
Minor deficiencies were observed during weekly site inspection. Key observations during the site inspections are summarized below:
-
Storage of chemicals
and construction materials on-site was not conducted
properly
-
Dust suppression mitigation measures
were not implemented properly
-
Housekeeping was not
implemented properly
The Contractor has rectified the observations identified during environmental site inspections in the reporting period.
According to the EIA Study Report, Environmental Permit, contract documents and EM&A Manual, the mitigation measures detailed in the documents are implemented as much as practical during the reporting period. An updated Implementation Status of Environmental Mitigation Measures (EMIS) is provided in Appendix C.
This is the 4th Quarterly EM&A Report for the Project which summarizes the key findings of the EM&A programme during the reporting period from 1 Dec to 28 Feb 2021, in accordance with the EM&A Manual and the requirement under FEP-01/503/2015/A.
No noise monitoring was conducted in the reporting period due to the over distant monitoring station from the works location.
The baseline water monitoring had been conducted between 12 May 2020 to 6 Jun 2020 at the thirteen designated monitoring stations and the six designated monitoring at waters near TKO. No impact water quality monitoring was conducted in the reporting period since the commencement of marine construction and dredging activities for the Project are scheduled in March 2021 the earliest.
No project-related exceedance of the Action / Limit Level was recorded during the reporting period.
Weekly environmental site inspection was conducted during the reporting period. Minor deficiency was observed during site inspection and was rectified. The environmental performance of the project was therefore considered satisfactory.
According to the environmental site inspections performed in the reporting period, the Contractor is reminded to pay attention on maintaining proper materials storage.
No environmental complaint was received in the reporting period.
No notification of summons or prosecution was received since commencement of the Contract.
The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.
Master Programme
Overview
of Desalination Plant in Tseung Kwan O
Appendix C
Summary
of Implementation Status of Environmental Mitigation
EIA Reference |
Recommended Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
D |
C |
O |
||||||
Air Quality |
|
|||||||
S4.8.1 |
Impervious dust screen or sheeting will be provided to enclose scaffolding from the ground floor
level of building for construction of superstructure of the new buildings. |
Land site/ During Construction |
Contractor(s) |
|
ü |
|
Implemented |
Air Pollution Control (Construction Dust) |
S4.8.1 |
Impervious sheet
will be provided for skip hoist
for material transport. |
Land site/ During Construction,
particularly dry
season |
Contractor(s) |
|
ü |
|
NA |
|
S4.8.1 |
The area where dusty
work takes place
should be sprayed
with water or a dust suppression chemical immediately prior to, during
and immediately after dusty
activities as far as practicable. |
Land site/ During Construction |
Contractor(s) |
|
ü |
|
Implemented |
|
S4.8.1 |
All dusty materials should be sprayed with
water or a dust suppression chemical immediately prior
to any loading, unloading or transfer operation. |
Land site/ During Construction |
Contractor(s) |
|
ü |
|
Implemented |
|
S4.8.1 |
Dropping heights for excavated materials should be
controlled to a practical height
to minimize the
fugitive dust arising
from unloading. |
Land site/ During Construction |
Contractor(s) |
|
ü |
|
Implemented |
|
S4.8.1 |
During transportation by
truck, materials should not be loaded to
a level higher than the side and tail boards, and should be dampened or covered before
transport. |
Land site/ During Construction |
Contractor(s) |
|
ü |
|
Implemented |
|
S4.8.1 |
Wheel washing device should
be provided at the exits
of the work sites. Immediately before leaving
a construction site, every vehicle
shall be washed to remove any dusty material
from its body
and wheels as far as practicable. |
Land site/ During Construction |
Contractor(s) |
|
ü |
|
Implemented |
|
S4.8.1 |
Road sections between vehicle-wash areas and vehicular entrance will be paved. |
Land site/ During Construction |
Contractor(s) |
|
ü |
|
Implemented |
|
EIA Reference |
Recommended Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
D |
C |
O |
||||||
S4.8.1 |
Hoarding of not less than 2.4m
high from ground
level will be provided along
the length of the Project Site boundary. |
Land site/ During construction |
Contractor(s) |
ü |
ü |
|
Implemented |
|
S4.8.1 |
Haul roads will be
kept clear of dusty materials and will be sprayed with water so as to maintain the entire road
surface wet at all times. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
|
S4.8.1 |
Temporary stockpiles of dusty materials will be either covered entirely by impervious sheets
or sprayed with water to maintain the entire surface
wet all the time. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
|
S4.8.1 |
Stockpiles
of more than 20 bags of cement, dry pulverised fuel
ash and dusty construction materials will
be covered entirely by
impervious sheeting sheltered on top and 3-
sides. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented, rectified after observation |
|
S4.8.1 |
All exposed areas will
be kept wet always to minimise dust emission. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
|
S4.8.1 |
Ultra-low-sulphur diesel (ULSD) will be used for all construction
plant on-site, as defined as diesel fuel containing not
more than 0.005% sulphur by weight) as stipulated
in Environment, Transport and Works Bureau Technical Circular
(ETWB-TC(W)) No 19/2005 on Environmental Management on Construction Sites. |
Land site/ During construction/ During Operation |
Contractor(s) |
|
ü |
ü |
Implemented |
Environment,
Transport and Works Bureau Technical Circular (ETWB-
TC(W)) No 19/2005 on Environmental Management
on Construction Sites |
S4.8.1 |
The engine of the construction equipment during idling will be switched off. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
|
EIA Reference |
Recommended Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
D |
C |
O |
||||||
S4.8.1 |
Concrete
batching plant will be required on site. control measures recommended in the Guidance Note on a Best Practicable
Means for Cement Works (Concrete
Batching Plant) (BPM 3/2
(93)) will be implemented. The control measures recommended in the Guidance Note on a Best Practicable Means for Cement Works (Concrete Batching
Plant) (BPM 3/2 (93)) will be implemented. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
N/A |
|
S4.8.1 |
Regular maintenance of construction equipment deployed on-site will be
conducted to prevent
black smoke emission. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
|
S4.10 |
To
ensure proper implementation of the recommended dust mitigation measures and good construction site practices during the construction
phase, environmental site audits on
weekly basis is recommended
throughout the construction
period. |
Land site/ During construction |
Contractor(s)/ Environmental
Team (ET) & Independent Environmental Checker
(IEC) |
|
ü |
|
Implemented |
|
Note: D - Design stage C - Construction O - Operation
EIA Reference |
Recommended Environmental
Protection Measures/ Mitigation Measures |
Objectives of the recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
D |
C |
O |
||||||
Noise |
||||||||
S5.7 |
Only well-maintained plant
will be operated on-site and plant will be serviced regularly during the construction phase. |
All area/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
A Practical Guide for the Reduction of Noise from
Construction Works, |
S5.7 |
Silencers
or mufflers on construction equipment
will be utilised
and will be properly maintained during the construction phase. |
Noise control/ During construction |
Contractor(s) |
|
ü |
|
N/A |
A
Practical Guide for the Reduction of Noise from Construction Works, |
S5.7 |
Mobile plant,
if any, will
be sited as far away
from NSRs as possible. |
Noise
control/ During construction |
Contractor(s) |
|
ü |
|
N/A |
A Practical
Guide for the Reduction of Noise from Construction Works, |
S5.7 |
Machines and plant (such
as trucks) that
may be in intermittent use will be shut down between work
periods or will
be throttled down to a minimum. |
Noise
control/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
A Practical Guide for the
Reduction of Noise from Construction Works, |
S5.7 |
Plants known to emit noise strongly in one direction will, wherever possible, be
orientated so that
the noise is directed away
from the nearby
NSRs. |
Noise
control/ During construction |
Contractor(s) |
|
ü |
|
N/A |
A Practical Guide for the Reduction of Noise from
Construction Works, |
S5.7 |
Material stockpiles and other structures will be
effectively utilised, wherever practicable, in screening noise from on-site construction activities. |
Noise
control/ During construction |
Contractor(s) |
|
ü |
|
N/A |
A Practical Guide for the
Reduction of Noise from Construction Works, |
S5.7 |
Use of Quite Powered Mechanical Equipment (QPME). |
Noise
control/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
A Practical Guide for the
Reduction of Noise from Construction Works, |
S5.7 |
Movable noise
barriers of 3m in height
with skid footing should be used and located within
a few metres of stationary plant and mobile plant such that the line of sight to the NSR is blocked by the barriers. The length
of the barrier should be at least five times
greater than its height. The noise barrier material should have a superficial surface density of at least
7 kg m-2 and have |
Noise
control/ During construction |
Contractor(s) |
|
ü |
|
N/A |
A Practical Guide for the
Reduction of Noise from
Construction Works, |
EIA Reference |
Recommended Environmental
Protection Measures/ Mitigation Measures |
Objectives of the recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
D |
C |
O |
||||||
|
no openings or gaps. |
|
|
|
|
|
|
|
S5.7 |
The noise insulating
sheet should be deployed such that
there would be no opening or gaps on the joints. |
Noise
control/ During construction |
Contractor(s) |
|
ü |
|
N/A |
A Practical Guide for the Reduction of Noise from
Construction Works, |
S5.7 |
Construction activities
(e.g. excavation/shoring, reinstatement
(asphalt), and pipe
jacking) will be planned and carried out
in sequence, such
that items of PME proposed for these activities will not be
operated simultaneously. |
Noise
control/ During construction |
Contractor(s) |
ü |
ü |
|
Implemented |
A Practical Guide for the
Reduction of Noise from
Construction Works |
S5.7 |
PMEs will not be used at
the works areas near
educational institutions with residual impact (ie
the ¡§influence area¡¨ within a radius
of 40m) during school hours in order
to reduce impact
to the educational institutions. |
Noise control / During construction |
Contractor(s) |
|
ü |
|
N/A |
A Practical Guide for the Reduction of Noise from Construction Works |
S5.7 |
Noise enclosures or acoustic sheds would be used to cover stationary PME such as generators. Portable/Movable
noise enclosure made of material with superficial surface
density of at least 7 kg m-2 may be
used for screening the noise from
operation of the saw/groover, concrete. |
Noise
control/ Pre- construction/ During
construction |
Contractor(s) |
ü |
ü |
|
N/A |
|
S5.9 |
Sawcutting pavement, breaking up of pavement, excavation /shoring, pipe
laying, backfilling, reinstatement (concrete) and pipe jacking shall be scheduled outside the examination period. |
Noise
control/ Pre- construction/ During
construction |
Contractor(s) |
ü |
ü |
|
N/A |
|
EIA Reference |
Recommended Environmental
Protection Measures/ Mitigation Measures |
Objectives of the recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
D |
C |
O |
||||||
S5.9 |
In view the duration of
noise exceedance at Creative Secondary School, PLK Laws Foundation College, TKO Kei Tak Primary School
and School of Continuing and Professional Studies-CUHK is limited to
8 weeks, the construction work
in the influence areas near the four schools shall be scheduled during long school holidays (eg
summer holiday, Easter holiday or Christmas holiday, etc) as far as practicable. Scheduling the construction work for the four schools. |
Noise control/ Pre- construction/
During construction |
Contractor(s) |
ü |
ü |
|
N/A |
|
S5.10 |
A
noise monitoring
programme shall be
implemented for the construction phase. |
Designated
monitoring stations as defined
in EM&A Manual/During
construction phase |
Environmental Team (ET) |
|
ü |
|
N/A |
|
S5.10 |
The effectiveness of on-site control measures could also be evaluated through the regular site
audits. |
All
facilities/ During construction |
Contractor(s)/ Environmental Team (ET) & Independent Environmental Checker (IEC) |
|
ü |
|
Implemented |
- |
Note: D - Design stage C - Construction O - Operation
EIA
Reference |
Recommended Environmental
Protection Measures/ Mitigation Measures |
Objectives of the recommended measures
& main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
D |
C |
O |
||||||
Water Quality |
||||||||
S6.9 |
Dredged marine sediment will be disposed of in a gazetted marine disposal area in accordance with
marine dumping permit conditions of the Dumping at Sea Ordinance (DASO). |
Marine Dredging/ During construction |
Contractor(s) |
|
ü |
|
N/A |
Dumping at Sea Ordinance (DASO) |
S6.9 |
Disposal vessels will be fitted with
tight bottom seals
in order to prevent leakage of material during transport. |
Marine Dredging/ During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
S6.9 |
Barges will be filled to a
level, which ensures that material
does not spill over during transport to the
disposal site and that adequate freeboard is maintained to ensure that
the decks are not washed
by wave action. |
Marine Dredging/ During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
S6.9 |
After dredging, any excess materials will be
cleaned from decks and exposed
fittings before the vessel is moved from the dredging area. |
Marine Dredging/
During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
S6.9 |
All vessels should be well maintained and inspected before
use to limit any potential discharges to the marine environment. |
Marine Dredging/ During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
S6.9 |
All vessels must
have a clean
ballast system. |
Marine Dredging/ During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
S6.9 |
No
discharge of sewage/grey wastewater should be
allowed. Waste water from
potentially contaminated area
on working vessels should be minimized and
collected. These kinds of
wastewater should be brought back to port and discharged at
appropriate collection and treatment system. |
Marine Dredging/
During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
S6.9 |
No soil waste is allowed to be disposed overboard. |
Marine Dredging/ During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
EIA
Reference |
Recommended Environmental
Protection Measures/ Mitigation Measures |
Objectives of the recommended measures
& main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
D |
C |
O |
||||||
S6.9 |
Silt removal facilities such as silt traps or sedimentation facilities
will be provided to remove silt particles
from runoff to meet the
requirements of the TM standard under
the WPCO. The design of silt removal facilities will be based on the guidelines provided in ProPECC PN 1/94. All drainage facilities and
erosion and sediment control
structures will be inspected on a regular basis and maintained to confirm proper and efficient operation at all
times and particularly during rainstorms. Deposited silt and grit will be removed regularly. |
Land site & drainage/ During construction |
Contractor(s) |
|
ü |
|
Implemented, rectified after reminder |
ProPECC PN 1/94 TM Standard under
the WPCO |
S6.9 |
Earthworks to form the final surfaces will be followed up with surface protection and drainage works to prevent
erosion caused by rainstorms. |
Land site & drainage/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
S6.9 |
Appropriate surface drainage will be designed and provided where necessary. |
Land site & drainage/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
S6.9 |
The precautions to be taken
at any time of year when rainstorms
are likely together with the actions to be
taken when a rainstorm is imminent or forecasted and actions
to be taken during or after rainstorms are
summarised
in Appendix A2 of ProPECC PN 1/94. |
Land site & drainage/ During construction |
Contractor(s) |
ü |
ü |
|
Implemented |
ProPECC PN 1/94 |
S6.9 |
Oil interceptors will be
provided in the drainage system where necessary and regularly
emptied to prevent the release
of oil and grease into the storm
water drainage system after accidental spillages. |
Land site & drainage/ During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
EIA
Reference |
Recommended Environmental
Protection Measures/ Mitigation Measures |
Objectives of the recommended measures
& main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
D |
C |
O |
||||||
S6.9 |
Temporary and permanent
drainage pipes and culverts provided to facilitate runoff discharge, if any, will be adequately designed for the controlled release
of storm flows. |
Land site & drainage/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
S6.9 |
The temporary diverted
drainage, if any, will be reinstated
to the original condition when the construction work has finished or when the temporary diversion is no longer required. |
Land site & drainage/ During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
S6.9 |
Appropriate numbers of portable toilets shall be provided
by a licensed contractor to serve the construction workers over the construction
site to prevent direct disposal of sewage into the water
environment. |
Land site & drainage/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
S6.9 and S6.12 |
The sterilization water should be dechlorinated with total residual chlorine (TRC) level below 1 mg/L before discharge to public sewer. In
situ testing of TRC should also be
conducted for the discharge of chlorinated water for pipeline disinfection to ensure
sufficient dechlorination
before discharge to public sewer. |
Sterilization of water mains prior to commissioning |
Contractor(s) |
|
ü |
ü |
N/A |
Technical Memorandum for Effluents
Discharged into Drainage
and Sewerage Systems Inland and Coastal Waters |
S6.9 |
The cleaning and flushing water should also be treated
and desilted to the relevant discharge requirement stipulated in TM-DSS before
discharging. |
Sterilization of water mains prior to commissioning |
Contractor(s) |
|
ü |
ü |
N/A |
Technical Memorandum for Effluents
Discharged into Drainage
and Sewerage Systems Inland and Coastal Waters |
EIA
Reference |
Recommended Environmental
Protection Measures/ Mitigation Measures |
Objectives of the recommended measures
& main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
D |
C |
O |
||||||
S6.9 |
Site drainage should be well maintained and good construction practices should be observed to ensure that oil, fuels, solvents and other
chemicals are managed, stored and
handled properly and do not enter the nearby water
streams. |
Land site & drainage/ During construction/ During operation |
Contractor(s) |
|
ü |
ü |
Implemented, rectified
after reminder |
- |
S6.12 |
Regular site
inspections will be carried out in order
to confirm that regulatory requirements are being met and
that contractors are implementing the standard site practice and
mitigation measures as proposed to reduce potential impacts to water
quality. |
During construction |
Contractor(s)/ Environmental Team
(ET) & Independent Environmental Checker (IEC) |
|
ü |
|
Implemented |
- |
Note: D - Design
stage C - Construction O - Operation
EIA
Reference |
Recommended Environmental Protection Measures/ Mitigation Measures |
Objectives of the recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation Status |
Relevant Legislation & Guidelines |
||
D |
C |
O |
||||||
Waste Management |
||||||||
S8.5 |