Service CONTRACT NO: EDO/01/2017
ENVIRONMENTAL TEAM for
DEVELOPMENT OF
ANDERSON ROAD QUARRY SITE -
ROAD IMPROVEMENT WORKS
Under Environmental Permit no. EP-513/2016
Monthly Environmental Monitoring & Audit Report
may 2020
|
CLIENTS: |
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Civil Engineering and
Development Department |
Lam Environmental Services Limited 11/F Centre Point 181-185
Gloucester Road, Wanchai, H.K. Telephone:
(852) 2882-3939 Facsimile:
(852) 2882-3331 E-mail:
info@lamenviro.com Website:
http://www.lamenviro.com |
|
|
|
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Certified
by: |
|
Sam Lam Environmental
Team Leader |
|
DATE: |
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12 June 2020 |
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1.1.......... Scope of the Report
1.2.......... Structure of the Report
2.2.......... Scope of the Project and Site
Description
2.3.......... Project Organization and Contact
Personnel
2.4.......... Construction Activities
3 Status of Regulatory Compliance
3.1.......... Status of Environmental Licensing and
Permitting under the Project
3.2.......... Status of Submission under the
EP-513/2016
4.1.......... Noise Monitoring
4.3.......... Water Quality Monitoring
5.1.......... Noise Monitoring Results
5.2.......... Air Monitoring Results
5.3.......... Water Quality Monitoring Results
5.4.......... Waste Management
6.1.......... Noise
Monitoring
6.2.......... Air Quality Monitoring
6.3.......... Water Quality Monitoring
6.4.......... Review
of the Reasons for and the Implications of Non-compliance
6.5.......... Summary of action taken in the event of
and follow-up on non-compliance
8. Complaints,
Notification of Summons and Prosecution
lIST OF TABLES
Table 2.1 Schedule 2 Designated Projects under this
Project
Table 2.2 Contact Details of Key Personnel
Table 3.2 Summary of submission status under
EP-513/2016
Table 4.1 Noise Monitoring Station
Table 4.2 Noise Monitoring Equipment
Table 4.3 Action and Limit Level for Noise Monitoring
Table 4.4 Air Monitoring Station
Table 4.5 Air Quality Monitoring Equipment
Table 4.6 Action and Limit Level for Air Quality
Monitoring
Table 4.7 Marine Water Quality Stations for Water
Quality Monitoring
Table 4.8 Water Quality Monitoring Equipment
Table 4.9 Action and Limit Level for Water Quality
Monitoring
Table 5.1 Summary of Quantities of Inert C&D
Materials
Table 5.2 Summary of Quantities of C&D Wastes
Table 7.1 Summary of Environmental Inspections
Table 7.2 Summary of Lanscape Inspections
Table 7.3 Summary
of Ecological Monitoring
Table 8.1 Cumulative Statistics on Complaints
Table 8.2 Cumulative Statistics on Successful
Prosecutions
Table 9.1 Construction Activities and Recommended
Mitigation Measures in Coming Reporting 2 Months
lIST OF FIGUREs
Figure 2.2 Project Organization Chart
Figure 4.1 Locations
of Noise Monitoring Station (for Road Improvement Work 1 & 2)
Figure 4.2 Locations
of Noise Monitoring Station (for Road Improvement Work 3)
Figure 4.3 Locations
of Air Quality Monitoring Station (for Road Improvement Work 1 & 2)
Figure 4.4 Locations
of Air Quality Monitoring Station (for Road Improvement Work 3)
Figure 4.5 Locations
of Water Quality Monitoring Station (for Road Improvement Work 1 & 2)
Figure 4.6 Locations
of Water Quality Monitoring Station (for Road Improvement Work 3)
lIST OF APPENDIces
Appendix 3.1 Environmental Mitigation Implementation Schedule
Appendix 4.1 Action and Limit Level
Appendix 4.2 Copies of Calibration Certificates
Appendix 4.3 Wind data extracted from HKO Automatic
Weather Station
Appendix 5.1 Monitoring Schedule for Reporting Month
Appendix 5.2 Noise Monitoring Results and Graphical
Presentations
Appendix 5.3 Air Quality Monitoring Results and Graphical
Presentations
Appendix 5.4 Water Quality Monitoring Results and
Graphical Presentations
Appendix 5.5 Monthly Summary Waste Flow Table
Appendix 6.1 Event and Action Plans
Appendix 6.2 Summary for Notification of Exceedance
Appendix 9.1 Construction Programme of Individual Contracts
EXECUTIVE SUMMARY
i.
This
is the Environmental Monitoring and Audit (EM&A) Monthly Report
– May 2020
of Development
of Anderson Road Quarry Site – Road Improvement Works under Environmental
Permit no. EP-513/2016 (Hereafter as “the Project”). The construction works of
the Project was commenced on 2 November 2018 and the tentative completion date
is end of 2023. This is the 19th
EM&A report presenting the environmental monitoring findings and
information recorded during the period of 1 May 2020 to 31 May 2020. The cut-off date of reporting is at the end of each
reporting month.
ii.
In
the reporting month, the principal work activities conducted are as follow:
Works in Road Improvement Works 1 (RIW1)
·
Earth works (such as
temporary soil nail, form working platform etc) at type 1, 1a, 4 to 8
in-progress; No fine concrete construction at RWC2 area is in progress;
·
ELS works at KS27
subway extension is in progress;
·
Excavate works and
install lateral support at FE1 was completed;
·
Construction of Slip
Road 2 drainage works is in progress;
Works in Road Improvement Works 2 (RIW2)
·
Site clearance for Portion 7 is in progress;
·
Pre-drill at CT4 and
SE2 in progress;
Works in Road Improvement Works 3 (RIW3)
·
Mini-pile
construction at RWD1 along Sau Mau Ping Road is in progress.
·
Water-main
works for new Public Toilet at Sau Mau Ping Road is in progress;
·
ELS
works and construction pile cap for temporary platform were in-progress.
·
Rock
excavation works using drill and split method at Slope D3 along Lin Tak Road
was in-progress;
·
Retaining
wall construction at slope crest of Slope D3 was in-progress;
·
No-fines
concrete construction at slope crest of Slope D3 is in progress;
·
Inspection
Pit for UU at Sau Mau Ping Road.
·
Rock-fall
fence for Lin Tak Road (Stage 2) was in-progress.
Air Quality
Monitoring
iii.
1-hour Total Suspended
Particulates (TSP) monitoring was conducted at eight monitoring stations. The sampling frequency
is 3 times in every 6 days in the reporting month.
iv.
No action or limit level exceedance was recorded in the reporting
period.
Noise Monitoring
v.
Noise monitoring was conducted at five noise monitoring stations once per
week in the reporting month.
vi.
Noise monitoring frequency for NMC05 has been increased to twice a week
due to the raise in public concern since 27 April 2020.
vii.
One limit level exceedance was recorded at NMC05 on 28 May 2020. Investigation
of the exceedance was still in progress and would be reported in the coming
report.
Water Quality Monitoring
ix.
No water can be collected at Station AC1 in May 2020 as the station was
dried out during the monitoring scheduled in the reporting month.
x.
No water can be collected at Station E on 2, 4, 6, 8, 11, 13, 15, 18,
20, 25 and 29 May 2020 as the station was dried out during the monitoring
scheduled in the reporting month.
xi.
Two (2) suspended solid limit level exceedances were recorded at Station
F on 18 and 27 May 2020. Investigation of the exceedance was still in progress
and would be reported in the coming report.
xii.
One (1) Turbidity limit level exceedance was recorded at Station F on 27
May 2020. After investigation, the exceedance was concluded as non-project
related.
xiii.
Two (2) suspended solid limit level exceedances were recorded at Station
I on 2 and 18 May 2020. Investigation of the exceedance was still in progress
and would be reported in the coming report.
Site Inspections and Audit
xiv.
The Environmental Team (ET) conducted weekly site inspections
for the Contract on 8, 15, 22 May 2020. IEC attended the joint site inspection on 8 May 2020. No non-compliance was found during the
site inspection while reminders on environmental measures were recommended.
xv.
The Environmental Team (ET) conducted biweekly landscape site
inspections for the Contract on 4 and 20 May 2020. No non-compliance was found
during the site inspection while reminders on environmental measures were
recommended.
xvi.
The Environmental Team (ET) conducted monthly ecological monitoring for
the Contract on 4 May 2020. No non-compliance was found during the monitoring
while reminders on environmental measures were recommended.
Complaints, Notifications of Summons and Successful
Prosecutions
xvii.
Two environmental complaints were received in this reporting month.
xviii.
The complainant reported through the
1823 electronic form dated on 18 May 2020 that silty water was discharged to
public road, New Clear Water Bay Road, from the construction site at the slope
under Shun Lee Disciplined Services Quarters.
The complaint concerned on the silty
runoff at New Clear Water Bay Road was referred by AECOM to ET on 21 May 2020.
According to the information provided by
the contractor, silty runoff to public road was due to the damaged pipe at the
top of the slope Shun Lee Disciplined Services Quarters, water leaked from the
pipe flew along the exposed down slope and became silty.
Amber warning signal was in force in the
morning. The water pipe might be damaged due to sudden heavy rainfall.
According to the information provided by
the contractor, water leaked from the damaged pipe flew through the exposed
slope and became silty. Silty runoff flew to the public road from the site
exit. No bunds were set up at the site exit.
Inspection was conducted with contractor
on 22 May 2020. Temporary site drainage was insufficient to contain site
surface runoff and most of the u-channel were blocked by deposited soil.
Remedial action taken according to the
observations by ET:
1. Placing
sand bags at the perimeter of the site and the site exit as bunds.
2. Repairing
the damaged pipe to stop the water leakage.
ET recommended the contractor to review
and improve the existing temporary drainage system to ensure site surface
runoff is properly contained and provide sufficient water pumps to divert
surface runoff to wastewater treatment unit in order to avoid muddy runoff to
public road.
ET recommended the contractor to deploy
sedimentation tank and wastewater treatment facilities with sufficient capacity
to handle the predicted volume of wastewater during rainy seasons.
ET recommended the contractor to
properly maintain the mitigation measures on site to avoid surface runoff to
public road, including but not limited to; regular cleaning of u-channel and
drains to maintain the function of temporary drainage; regular check and repair
defects on water pipe; regular check the operation of wastewater treatment unit
/ sediment tanks and deploy addition treatment units when necessary to ensure
effective wastewater treatment.
Joint site inspection by ET and
contractor had observed that no water leakage was observed and sand bags were
added at site exit as bunds
xix.
The complainant reported through the1823
electronic form dated on 25 May 2020 that silty water was discharged to public
road, New Clear Water Bay Road from the construction site at the slope under
Shun Lee Disciplined Services Quarters.
The complaint concerned on the silty
runoff at New Clear Water Bay Road was referred by AECOM to ET on 3 June 2020
respectively.
According to the observation and
inspection, the silty runoff should be caused by the large volume of water flow
through the soil surface of the construction site after heavy rainfall.
Amber and Red Warning Signal were in
force in the morning. This may be the major cause that large volume of water
flow through soil surface of the construction site causing the silty runoff.
According to the observation on 30 May
2020, silty runoff was observed flowing to the public road at New Clear Water
Bay Road and also flowing into the public rainstorm drainage.
Inspection was conducted by ET on 4 June
2020, temporary drainages was found insufficient to contain surface runoff and
the blockage of existing channel was observed.
Joint inspection was conducted with ET,
contractor and RSS on 5 June 2020. Temporary drainages were found missing at
some area of the construction site and protection was not enough at the
perimeter of the site to avoid runoff to public area.
Remedial action taken according to the
observations by ET:
1. Placing
sand bags at the site boundary and the site exit as bunds.
2. Deployed
one more set of sedimentation tank and wastewater treatment facilities.
3. Diversion
of part of the runoff from the top of the slope to avoid flowing through soil
surface.
ET recommended the contractor to review
and improve the existing temporary drainage system to ensure site surface
runoff is properly contained and provide sufficient water pumps to divert
surface runoff to wastewater treatment unit in order to avoid muddy runoff to public
road.
ET recommended the contractor to deploy
sedimentation tank and wastewater treatment facilities with sufficient capacity
to handle the predicted volume of wastewater during rainy seasons.
ET recommended the contractor to review
the drainage system and mitigation measures at perimeter of site to avoid
surface runoff flow to public area.
ET recommended the contractor to avoid
any silty stockpile on site and cover the exposed surface as much as possible
to avoid silty runoff.
Reporting Changes
xx.
There are no particular reporting changes.
Future Key Issues
xxi.
In
coming reporting 2 months, the scheduled construction activities and the
recommended mitigation measures are listed as follows:
Recommended Mitigation Measures |
|
·
Earth works (such as temporary soil nail, form working platform etc)
at type 1, 1a, 4 to 8 in-progress; No fine concrete construction at RWC2 area
is in progress; ·
ELS works at KS27 subway extension is in progress; ·
Excavate works and install lateral support at FE1 was completed; ·
Construction of Slip Road 2 drainage works is in progress; ·
Works in Road Improvement Works 2 (RIW2) ·
Site clearance for Portion 7 is in progress; ·
Pre-drill at CT4 and SE2 in progress; ·
Works in Road Improvement Works 3 (RIW3) ·
Mini-pile construction at RWD1 along Sau Mau Ping Road is in progress.
·
Water-main works for new Public Toilet at Sau Mau Ping Road is in
progress; ·
ELS works and construction pile cap for temporary platform were
in-progress. ·
Rock excavation works using drill and split method at Slope D3 along
Lin Tak Road was in-progress; ·
Retaining wall construction at slope crest of Slope D3 was
in-progress; ·
No-fines concrete construction at slope crest of Slope D3 is in
progress; ·
Inspection Pit for UU at Sau Mau Ping Road. ·
Rock-fall fence for Lin Tak Road (Stage 2) was in-progress. |
·
Dust control during dust generating works; ·
Implementation of proper noise pollution control; and ·
Provision of protection to ensure no runoff out of site area or direct
discharge into public drainage system. |
1.1.1.
Lam Environmental Services Limited (LES) has been appointed to work as
the Environmental Team (ET) under Environmental Permit (EP) no. EP-513/2016 to
implement the Environmental Monitoring and Audit (EM&A) programme as
stipulated in the EM&A Manual of the approved Environmental Impact
Assessment (EIA) Report for Development of Anderson Road Quarry site - Road
Improvement Works (Register No.: AEIAR-195/2016).
1.1.2.
In accordance with Clause 3.4 stated in EP-513/2016, four hard copy and
one electronic copy of the monthly EM&A Report shall be submitted to the
Director within 2 weeks after the end of each reporting month throughout the
entire construction period.
1.1.3.
In accordance with Section 11.3.1 of the Project EM&A Manual, the first
Monthly EM&A Report should be prepared and submitted to EPD within a month
after the major construction works commences with the subsequently Monthly
EM&A Reports due in 10 works day of the end of each reporting month.
Section 1 Introduction – details the scope and structure of the report.
Section 2 Project
Background – summarizes background and
scope of the project, site description, project organization and contact
details of key personnel during the reporting period.
Section 3 Status of Regulatory Compliance – summarizes the status of valid Environmental Permits /
Licenses during the reporting period.
Section 4 Monitoring
Requirements – summarizes all monitoring
parameters, monitoring methodology and equipment, monitoring locations,
monitoring frequency, criteria and respective event and action plan and
monitoring programmes.
Section 5 Monitoring
Results – summarizes the monitoring
results obtained in the reporting period.
Section 6 Compliance Audit – summarizes
the auditing of monitoring results, all exceedances environmental
parameters.
Section 7 Environmental Site Audit – summarizes the findings of weekly site inspections
undertaken within the reporting period, with a review of any relevant follow-up actions within the reporting period.
Section 8 Complaints,
Notification of summons and Prosecution – summarizes the cumulative statistics on complaints, notification of summons and
prosecution
Section 9 Conclusion
2.1.1.
The Development of Anderson Road Quarry (ARQ) Site is to provide land
and the associated infrastructures for the proposed land uses at the existing
ARQ site at the north-eastern of East Kowloon.
2.1.2.
In addition to the site formation and infrastructure works within the
ARQ site, a new bus-to-bus interchange (BBI) at the toll plaza of Tseung Kwan O
Tunnel and a series of associated off-site road improvement works and
pedestrian connectivity facilities are also proposed to mitigate the potential
cumulative traffic impact arising from the proposed ARQ development.
2.1.3.
The Project under Environmental Permit (EP) (EP No. EP-513/2016) is for
the three associated of-site road improvement works which comprises: (i)
improvement of junction of (J/O) Lin Tak Road / Sau Mau Ping Road (RIW3) (ii)
widening and improvement of sections of Clear Water Bay Road and On Sau Road
(RIW2); and (iii) widening and improvement of sections of New Clear Water Bay
Road and Shun Lee Tsuen Road (RIW1). The location of the Project is shown Figure 2.1.
2.2.1.
The project contains various Schedule 2 Designated Projects (DPs) that,
under the EIAO, require EPs to be granted by the DEP before they may be either
constructed or operated. Table 2.1 summarises the DPs under this
Project.
Table 2.1 Schedule 2 Designated Projects under this
Project
Item |
Designated Project |
EIAO Reference |
DP2
|
A
road which is an expressway, trunk road, primary distributor road or district
distributor road including new roads, and major extensions or improvements to
existing road |
Schedule
2, Part I, A.1 |
2.3.1
Civil Engineering and Development Department is the overall project
controllers for the Project. For the construction phase of the Project, Project
Engineer, Contractor(s), Environmental Team and Independent Environmental
Checker are appointed to manage and control environmental issues.
2.3.2
The proposed project organization and lines of communication with
respect to environmental protection works are shown in Figure 2.2. Key personnel and contact
particulars are summarized in Table 2.2:
Table 2.2 Contact
Details of Key Personnel
Party |
Role |
Post |
Name |
Contact
No. |
Contact
Fax |
AECOM |
Engineer’s
Representative |
Senior
Resident Engineer |
Mr. Brad Chan |
5506 0068 |
2473 3221 |
Chun
Wo – China Metallurgical Group Corporation Joint Venture |
Contractor
|
Site
Agent |
Mr. Chris Lam |
9801 9974 |
3965 9854 |
Environmental
Officer |
Ms. King Lam |
9570 6187 |
|||
Independent Environmental
Checker (IEC) |
Independent Environmental Checker (IEC) |
Mr. Adi Lee |
|||
Environmental Team (ET) |
Environmental Team Leader (ETL) |
Mr. Sam Lam |
6178 3179 |
2882 3331 |
2.4.1 In the reporting month, the
principal work activities conducted are as follow.
Works in Road
Improvement Works 1 (RIW1)
·
Earth works (such as
temporary soil nail, form working platform etc) at type 1, 1a, 4 to 8
in-progress; No fine concrete construction at RWC2 area is in progress;
·
ELS works at KS27
subway extension is in progress;
·
Excavate works and
install lateral support at FE1 was completed;
·
Construction of Slip
Road 2 drainage works is in progress;
Works in Road Improvement Works 2
(RIW2)
·
Site clearance for Portion 7 is in progress;
·
Pre-drill at CT4 and
SE2 in progress;
Works
in Road Improvement Works 3 (RIW3)
·
Mini-pile
construction at RWD1 along Sau Mau Ping Road is in progress.
·
Water-main
works for new Public Toilet at Sau Mau Ping Road is in progress;
·
ELS
works and construction pile cap for temporary platform were in-progress.
·
Rock
excavation works using drill and split method at Slope D3 along Lin Tak Road
was in-progress;
·
Retaining
wall construction at slope crest of Slope D3 was in-progress;
·
No-fines
concrete construction at slope crest of Slope D3 is in progress;
·
Inspection
Pit for UU at Sau Mau Ping Road.
·
Rock-fall
fence for Lin Tak Road (Stage 2) was in-progress.
2.4.2
In coming reporting 2 months, the scheduled construction activities are
listed as follows:
·
Site formation and temporary soil nail installation at RWC2 Type 1 &
1a and 2;
·
Site formation and temporary soil nail installation for RIW2 Type 4, 6,7
& 8;
·
Removal of Platform 2;
·
Trenchless construction for gasmain redirection at Slip Road 2;
·
RC base slab construction at KS27;
·
Soil nail installation at Slope C1 at Zone 7;
·
Footing construction at Zone 5;
·
Removal of Lamp posts and erect temporary lamp posts at Central Median;
·
Piling platform construction at CT4;
·
Predrilling works at SE2;
·
Mini-pile installation works at RWD1;
·
ELS construction for Noise Barrier Footing SE1;
·
Mini-pile and ELS construction at Slope D2;
·
Stage 1 rock excavation at Slope D3; and
·
Retaining wall construction at Slope D3;
·
No-fines concrete construction at Slope D3;
·
Rock-fall Fence (Stage 2) along Lin Tak Road.
·
Watermain works at Sau Mau Ping Road
3.1.1.
A summary of the current status on licences and/or permits on
environmental protection pertinent to the Project is shown in Table 3.1.
Table 3.1 Summary of the
current status on licences and/or permits on environmental protection pertinent
to the Project
Permits and/or Licences |
Permit. No. / Account No. |
Valid
From |
Expiry
Date |
Status |
Notification pursuant to
Air Pollution Control (Construction Dust) Regulation |
Form NA submitted to EPD
on 29 May 2018. |
|||
Environmental Permit |
EP-513/2016 |
20 Jul 2016 |
N/A |
Valid |
Construction
Noise Permit (CNP) |
||||
Nil |
Nil |
Nil |
Nil |
Nil |
Billing Account for Disposal |
||||
Billing
Account for Disposal of Construction Waste |
7031075 |
20
Jul 2018 |
End of the Project |
Valid |
Chemical Waste Registration |
||||
Registration
as a Waste Producer for Sau Mau Ping Road to Lin Tak Road |
5213-294-C4239-04 |
6 Aug 2018 |
N/A |
Valid |
Registration
as a Waste Producer for Sau Mau Ping Area between Him Tat House and Sau Mau
Ping Salt Water Service Reservoir |
5213-293-C4239-05 |
6 Aug 2018 |
N/A |
Valid |
Registration
as a Waste Producer for New Clear Water Bay Road (Start from 46 Clear Water
Bay Road, End at Shun Lee Tsuen Road and San Lee Street |
5213-291-C4239-02 |
13 Aug 2018 |
N/A |
Valid |
Registration
as a Waste Producer for South Part of Hiu Ming Street Playground |
5213-294-C4239-03 |
6 Aug 2018 |
N/A |
Valid |
Registration
as a Waste Producer for Clear Water Bay Road and New Clear Water Bay Road
(From the intersection of Fei Ngo Shan Road to Tai Pan Court) and on Sau Road
(From the intersection of New Clear Water Bay Road to 9 Anderson Road |
5213-831-C4239-08 |
6 Aug 2018 |
N/A |
Valid |
Registration
as a Waste Producer for Sau Mau Ping Area Between Anderson Road and On Sau
Road, next to Oi Tat House |
5213-292-C4239-06 |
6 Aug 2018 |
N/A |
Valid |
Water Discharge Licence |
||||
Water
Pollution Ordinance Licence for Lin Tak Road to Sau Mau Ping Road including
Tseung Kwan O Tunnel Toll Plaza |
WT00032742-2018 |
18
Jan 2019 |
31 Jan 2024 |
Valid |
Water
Pollution Ordinance Licence for Sau Mau Ping Area between Anderson Road and
On Sau Road, next to Oi Tat House |
WT00033223-2019 |
31
Jan 2019 |
31 Jan 2024 |
Valid |
Water
Pollution Ordinance Licence for Sau Mau Ping Area at south part of Hiu Ming
Street playground |
WT00033224-2019 |
21
Mar 2019 |
31 Mar 2024 |
Valid |
Water
Pollution Ordinance Licence for intersection of Fei Ngo Shan Road to Tai Pan
Court and on Sau Road (From the intersection of New Clear Water Bay Road to 9
Anderson Road |
WT00033299-2019 |
5
Mar 2019 |
31 Mar 2024 |
Valid |
Water
Pollution Ordinance Licence for Sau Mau Ping area between Him Tat House and
Sau Mau Ping Salt Water service Reservoir |
WT00033229-2019 |
24 Jun 2019 |
30 Jun 2024 |
Valid |
3.2.1.
A summary of the current status on submission under EP-513/2016 is shown
in Table 3.2.
Table 3.2 Summary of
submission status under EP-513/2016
Submission |
Date of Submission |
|
Condition 1.12 |
Notification
of Commencement Date of Works |
24
September 2018 |
Condition
2.10 |
Management
Organization of Main Construction Companies |
27
September 2018 |
Condition
2.11 |
Submission
of Design Drawing(s) of the Project |
28
September 2018 |
Condition
2.12 |
Submission
of Landscape and Visual Mitigation Plan(s) |
28
September 2018 |
Condition
2.14 (a) and 2.15 |
Submission
of Detailed Vegetation Survey Report (2nd
submission) |
7
December 2018 |
Condition
2.14 (b) and 2.15 |
Submission
of Transplantation Proposal |
7
December 2018 |
Condition
3.3 |
Submission
of Baseline Environmental Monitoring Report (2nd
submission) |
18
December 2018 |
Condition
2.14 (c) |
Transplantation
Completion Report |
3
May 2019 |
Condition
3.4 |
Monthly
EM&A Report (April 2019) |
15 May
2020 |
Noise Monitoring Stations
4.1.1.
The noise monitoring stations for the Project are listed and shown in Table
4.1 and Figure 4.1 & 4.2.
Table 4.1 Noise Monitoring Station
Monitoring Station ID |
Monitoring Location |
Measurement Type |
Level (in terms of no. of floor) |
Kei Shun Special School |
Façade |
G/F |
|
NMC02 |
Shun Lee Disciplined
Services Quarters Block 6 |
Façade |
3/F podium |
NMC03 |
Sienna Garden Block 6 |
Free-field |
G/F |
NMC04 |
Po Tat Estate Tat Kai House |
Free-field |
3/F podium |
NMC05 |
Hong Wah Court Block B Yee
Hong House |
Façade |
G/F |
Noise Monitoring
Parameters, Frequency and Duration
4.1.2.
Noise monitoring shall be carried out at all the designated monitoring
stations. The monitoring frequency shall depend on the scale of the
construction activities. The following is an initial guide on the regular
monitoring frequency for each station on a weekly basis when noise generating
activities are underway:
·
One set of measurements between 0700-1900 hours on
normal weekdays (six consecutive Leq/5min readings);
·
One set of measurements between 1900-2300 hours;
·
One set of measurements between 2300-0700 hours of
next day; and
·
One set of measurements between 0700-2300 hours on
holidays (three consecutive Leq/5min readings).
4.1.3.
For the latter 3 sets of measurements specified in Section 4.1.2 above,
one set of measurements shall at least include 3 consecutive Leq (5min) results.
4.1.4.
Supplementary information for data auditing, statistical results such as
L10 and L90 shall also be obtained for reference.
4.1.5.
If a school exists near the construction activity, noise monitoring
shall be carried out at the monitoring stations for the schools during the
examination periods. The ET leader shall liaise with the school’s personnel and
the examination authority to ascertain the exact dates and times of all
examination periods during the course of the contract.
Monitoring Equipment
4.1.6.
Noise monitoring was performed
using sound level meter at the
designated monitoring locations.
The sound level meters shall comply with the
International Electrotechnical Commission
Publications 651:1979
(Type
1) and
804:1985 (Type 1)
specifications.
Acoustic calibrator shall
be deployed to check the sound level meters at a known sound pressure level. Brand and model of the equipment is given in Table
4.2.
Table 4.2 Noise
Monitoring Equipment
Equipment |
Brand
and Model |
Series Number |
Integrated
Sound Level Meter |
NTi XL2 |
A2A-15269-EO |
Acoustic Calibrator |
Larson Davis CAL200 |
13437 |
4.1.7. The calibration certificates of the noise monitoring
equipment are attached in Appendix 4.2.
Sampling Procedure and
Monitoring Equipment
4.1.8.
Monitoring Procedure
(a)
The monitoring station shall normally
be at a point 1m from the exterior of the sensitive receiver’s building façade
and be at a position 1.2m above the ground.
(b)
Façade measurements were made at the
monitoring locations. For free-field measurement, a correction factor of +3 dB (A)
would be applied.
(c)
The battery condition was checked to
ensure the correct functioning of the meter.
(d)
Parameters such as frequency weighting,
the time weighting and the measurement time were set as follows:
(e)
Frequency weighting: A, Time weighting:
Fast, Measurement time set: continuous 5 mins
(f)
Prior and after to the noise
measurement, the meter was checked using the acoustic calibrator for 94dB (A)
at 1000 Hz. If the difference in the calibration level before and after
measurement was more than ±1 dB (A), the measurement would be considered
invalid and repeat of noise measurement would be required after re-calibration
or repair of the equipment.
(g)
Noise measurements shall not be made in
fog, rain, wind with a steady speed exceeding 5m/s or wind with gusts exceeding
10m/s. The wind speed shall be checked with a portable wind speed meter capable
of measuring the wind speed in m/s.
4.1.9.
Maintenance and Calibration
(a)
The microphone head of the sound level
meter was cleaned with soft cloth at regular intervals.
(b)
The sound level meter and calibrator
were calibrated at yearly intervals.
EVENT and action plan
4.1.10. Noise Standards for Daytime Construction Activities are
specified under EIAO-TM. The Action and Limit levels for construction noise are
defined in Table 4.3 and Appendix 4.1. Should non-compliance of the
criteria occurs, action in accordance with the Event and Action Plan in Appendix 6.1
shall be carried out.
Table 4.3 Action and
Limit Level for Noise Monitoring
Monitoring Station |
Action Level |
Limit Level (dB(A)) |
||
0700-1900 hrs on normal weekdays |
0700-2300 hrs on holidays (including Sundays); and
1900-2300 hrs on all days 2 |
2300-0700 hrs of all days 2 |
||
NMC01 |
When one documented complaint is received |
65 / 70 1 |
60 / 65 / 70 3 |
45 / 50 / 55 3 |
NMC02 |
75 |
|||
NMC03 |
75 |
|||
NMC04 |
75 |
|||
NMC05 |
75 |
Remark 1: Limit level of NMC01 - Kei Shun Special School reduce to 65 dB
(A) during examination periods if any.
Remark 2: Construction noise during restricted hours is under the
control of Noise Control Ordinance Limit Level to be selected based on Area
Sensitivity Rating.
Remark 3: Limit Level for restricted hour monitoring shall act as
reference level only. Investigation would be conducted on CNP compliance if
exceedance recorded during restricted hour noise monitoring period.
Air Quality Monitoring
Stations
4.2.1.
The air monitoring stations for the Project are listed and shown in Table
4.4 and Figure 4.3 & 4.4.
Table 4.4 Air Monitoring
Station
Monitoring
Station ID |
Monitoring Location |
Level (in terms of no. of floor) |
NCWBR_AMS-1 |
Shun Lee Fire Station |
2/F Roof |
NCWBR_AMS-2 |
Shun Lee Estate Lee
Hang House |
G/F |
NCWBR_AMS-3 |
Shun Lee Disciplined
Services Quarters (Block 6) |
4/F podium |
NCWBR_AMS-4 |
Sienna Garden |
G/F |
NCWBR_AMS-5 |
Shun Chi Court Shun
Fung House |
Roof |
LTR_AMS-1 |
St Edward's Catholic
Primary School |
G/F |
LTR_AMS-2 |
Environmental
Protection Department's Restored Landfill Site Office |
G/F |
LTR_AMS-3 |
Po Tat Estate Tat Kai
House |
3/F podium |
Air Monitoring Parameters,
Frequency and Duration
4.2.2.
One-hour TSP levels should be measured to indicate the impacts of
construction dust on air quality.
4.2.3.
The sampling frequency of at least three times in every six-days should
be undertaken when the highest dust impact occurs.
Sampling Procedure and
Monitoring Equipment
4.2.4.
Monitoring Procedures
(a)
Check the calibration period of
portable direct reading dust meter prior to monitoring (The direct reading dust
meter was calibrated at 2-years interval and checked with High Volume Sampler
(HVS) yearly.)
(b)
Record the site condition near / around
the monitoring stations.
(c)
Install the portable direct reading
dust meter to the monitoring location.
(d)
Slide the power switch to turn the
power on.
(e)
Check of portable direct reading dust
meter to ensure the equipment operation in normal condition.
(f)
Select the period of measurement to
60mins.
(g)
Check and set the correct time.
(h)
Select the appropriate unit display for
the equipment.
(i)
Slide the power switch to turn the power
off when the monitoring period ended (3 times 1 hour TSP monitoring per day).
(j)
Uninstall the portable direct reading
dust meter
(k)
Collected the sampled data for
analysis.
(l)
Remark: Procedures (c) to (h) may be
different subject to the brands and models of portable direct reading dust meter
4.2.5.
Maintenance and Calibration
(a)
The direct reading dust meter was
calibrated at 2-years interval and checked with High Volume Sampler (HVS)
yearly to determine the accuracy and validity of the results measured.
(b)
Checking of direct reading dust meter will
be carried out in order to determine the conversion factor between the direct
reading dust meter and the standard equipment, HVS. The comparison check is to
be considered valid based on correlation coefficient checked by HOKLAS
laboratory.
4.2.6.
The 1-hour TSP air quality monitoring was performed by using portable
direct reading dust meters at each designated monitoring station. The brand and
model of the equipment are given in Table
4.5.
Table 4.5 Air Quality
Monitoring Equipment
Equipment |
Brand
and model |
Series
Number |
Portable
direct reading dust meter |
Met One
BT- 645 |
X19295 X19297 X19299 |
Met One
AEROCET 831 |
W15448 W15449 W16848 Y23153 Y23154 Y23160 |
4.2.7.
The calibration certificates of the air quality monitoring equipment are
attached in Appendix 4.2.
Wind Data
4.2.8.
The representative wind data from Tate’s Cairn HKO Automatic Weather
Station and Tseung Kwan O HKO Automatic Weather Station were obtained covering
the 1-hr TSP monitoring periods. The wind data were extracted and shown in Appendix 4.3.
EVENT and action plan
4.2.9.
The Action and Limit levels for construction air quality are defined in Table 4.6 and Appendix
4.1. Should non-compliance of the air quality criteria occur, action in
accordance with the Event and Action Plan in Appendix
6.1 shall be carried out.
Table 4.6 Action and
Limit Level for Air Quality Monitoring
Monitoring
Locations |
1-hour TSP Level
in μg/m3 |
|
Action Level |
Limit Level |
|
NCWBR_AMS-1 |
284.4 |
500.0 |
NCWBR_AMS-2 |
282.4 |
500.0 |
NCWBR_AMS-3 |
287.9 |
500.0 |
NCWBR_AMS-4 |
281.6 |
500.0 |
NCWBR_AMS-5 |
270.0 |
500.0 |
LTR_AMS-1 |
272.1 |
500.0 |
LTR_AMS-2 |
281.1 |
500.0 |
LTR_AMS-3 |
285.1 |
500.0 |
WATER QUALITY MONITORING STATIONS
4.3.1.
Water quality monitoring was undertaken at 7 monitoring stations in the
reporting month. The proposed water quality monitoring stations of the Project
are shown in Table 4.7 and Figure 4.5 & 4.6.
Table 4.7 Marine Water Quality Stations for Water
Quality Monitoring
Inland Water |
Stations |
Description |
Easting |
Northing |
Channelized nullah across the Project site |
E |
Upstream Control Station |
841329 |
821753 |
F |
Downstream Impact Station |
841469 |
821635 |
|
AC1 |
Upstream Reference Station |
- |
- |
|
AC2 |
Upstream Reference Station |
- |
- |
|
AC3 |
Upstream Reference Station |
- |
- |
|
Ma Yau Tong Stream |
H |
Upstream Control Station |
843008 |
819880 |
I |
Downstream Impact Station |
842652 |
819573 |
Water Quality Parameters,
Frequency and Duration
4.3.2.
The levels of dissolved oxygen (DO), turbidity and pH shall be measured
in situ while suspended solids (SS) is determined by laboratory analysis at all
the designated monitoring stations.
4.3.3.
In association with the water quality parameters, other relevant data
shall also be recorded, such as monitoring location / position, time, water
temperature, salinity, DO saturation, weather conditions, and any special
phenomena underway near the monitoring station.
4.3.4.
The sampling frequency of at least three days per week should be
undertaken when the highest dust impact occurs. Upon completion of the
construction works, the monitoring exercise at the designated monitoring
locations should be continued for four weeks in the same manner as the impact
monitoring.
4.3.5.
The interval between two sets of monitoring should not be less than 36
hours except where there are exceedances of Action and/or Limit Levels, in
which case the monitoring frequency will be increased.
4.3.6.
Replicate in-situ measurements should be carried out in each sampling
event.
Sampling Procedures and
Monitoring Equipment
Dissolved Oxygen And Temperature Measuring
Equipment
4.3.7.
The instrument should be a portable, weatherproof dissolved oxygen
measuring instrument complete with cable, sensor, comprehensive operation
manuals, and use a DC power source. It should be capable of measuring:
·
a
dissolved oxygen level in the range of 0-20 mg/l and 0-200% saturation
·
a
temperature of 0-45 degree Celsius
4.3.8.
It should have a membrane electrode with automatic temperature compensation
complete with a cable. Sufficient stocks of spare electrodes and cables should
be available for replacement where necessary. (e.g. YSI model 59 meter, YSI
5739 probe, YSI 5795A submersible stirrer with reel and cable or an approved
similar instrument).
4.3.9.
Should salinity compensation not be build-in in the DO equipment,
in-situ salinity shall be measured to calibrate the DO equipment prior to each
DO measurement.
Turbidity Measurement Instrument
4.3.10.
The instrument should be a portable, weatherproof turbidity-measuring
instrument complete with comprehensive operation manual. The equipment should
use a DC power source. It should have a photoelectric sensor capable of
measuring turbidity between 0‑1000 NTU and be complete with a cable (e.g. Hach
model 2100P or an approved similar instrument).
Sampler
4.3.11. Due to low water level as mentioned
in Section 6.4.3 of the EIA report, bucket sampler (Approximate 1L) will be use
instead of water sampler in order to obtain surface water sample without
disturb the stream sediment and collect representative results.
Salinity
4.3.12.
A portable salinometer capable of measuring salinity in the range of 0-70
ppt shall be provided for measuring salinity of the water at each of monitoring
location.
Monitoring Methodology
4.3.13.
Monitoring Procedure
(a)
The condition near the monitoring
stations shall be observed and recorded on the data log sheet.
(b)
Check of sensors and electrodes with
certified standard solutions before each use.
(c)
Wet bulb calibration for a DO meter
should be carried out before measurement.
(d)
Sample would be taken using bucket
sampler at surface level.
(e)
Transfer the sampled water carefully
into cleaned water bottles (2x 1000ml) provided by the laboratory at the spot
after the collection of the water sample for the subsequent laboratory Suspended
Solid testing.
(f)
Transfer the sampled water from the
bucket sampler to the rinsed water container for in-situ measurement (In case
of the in-situ measurement cannot be carried at spot due to safety and adverse
weather condition, sampled water from the bucket sampler will be transfer to
cleaned water bottles provided by laboratory. Then, In-situ measurement will be
conducted at a safe location which sampled water inside cleaned water bottle
will be transfer to the rinsed water container for in-situ measurement) In-situ
measurement shall be measured in duplicate.
(g)
Parameters including Water Temperature
(℃), pH (units), Salinity (ppt), DO (mg/L), DO saturation (%) will be measured
by the Multifunctional Meter and Turbidity (NTU) will be measured by turbid
meter. (Water Temperature and Salinity will be measured as reference
parameters)
(h)
Record the result on the data log sheet
and record any special finding during / after in-situ measurement.
(i)
The water sample bottles will be stored
in a cool box (at cooled to 4℃ without being frozen), which shall be delivered
to HOKLAS laboratory (ALS Technichem (HK) Pty Ltd) for further testing to
determine the level of SS.
4.3.14.
Maintenance and Calibration
(a)
The responses of sensors and electrodes
of the water quality monitoring equipment were cleaned and checked at regular
intervals.
(b)
DO meter (Multifunctional Meter) and
turbid meter was certified by a laboratory accredited under HOKLAS or any other
international accreditation scheme, and subsequently re-calibrated at three
monthly intervals.
4.3.15.
Brand and model of the equipment are given in Table 4.8.
Table 4.8 Water Quality Monitoring Equipment
Equipment |
Brand and model |
Series Number |
Multifunctional Meter |
YSI
Professional Plus |
16J100298 19H100656 |
Turbid meter |
Xin Rui WGZ-3B |
1807079 1807063 |
4.3.16.
The calibration certificates of the water quality monitoring equipment
are attached in Appendix 4.2.
Laboratory Measurement /
Analysis
4.3.17.
Analysis of suspended solids has been carried out in a HOKLAS accredited
laboratory, which is ALS Technichem (HK) Pty Ltd.
EVENT and action plan
4.3.18.
The Action and Limit levels for construction water quality are defined
in Table 4.9 and Appendix 4.1.
Should the monitoring results of the water quality parameters at any designated
monitoring station exceed the water quality criteria, action in accordance with
the Event and Action Plan in Appendix 6.1
shall be carried out.
Table 4.9 Action and
Limit Level for Water Quality Monitoring
Monitoring Station |
Surface pH |
Surface DO (mg/L) |
Surface Turbidity (NTU) |
Surface SS (mg/L) |
||||
Action Level |
Limit Level |
Action Level |
Limit Level |
Action Level |
Limit Level |
Action Level |
Limit Level |
|
E |
- |
- |
- |
- |
- |
- |
- |
- |
F |
Beyond
the range of 6.6-8.4 |
Beyond
the range of 6.5-8.5 |
5.8 |
5.5 |
24.4 |
32.7 |
17.0 |
23.8 |
AC1 |
- |
- |
- |
- |
- |
- |
- |
- |
AC2 |
- |
- |
- |
- |
- |
- |
- |
- |
AC3 |
- |
- |
- |
- |
- |
- |
- |
- |
H |
- |
- |
- |
- |
- |
- |
- |
- |
I |
Beyond
the range of 6.6-8.4 |
Beyond
the range of 6.5-8.5 |
5.5 |
5.4 |
206.9 |
214.2 |
172.8 |
201.4 |
*Remarks:
The value of
1.0mg/L was taken as the value for measurement with suspended solid level of
<1.0mg/L for Action and Limit level calculation.
It is
recommended that upstream monitoring station (monitoring station E, AC1, AC2,
AC3 and H) would be taken as control reference for exceedance investigation
only. Action and limit level would not be establish using the baseline data.
5.0.1
The environmental monitoring
will be implemented based on the division of works areas of each designed
projects. Overall layout showing work areas and monitoring stations is shown in
Figure 2.1 and Figure 4.1
– 4.6 respectively.
5.0.2
The environment monitoring
schedules for reporting month and coming month are presented in Appendix 5.1.
5.1.1
All noise monitoring was
conducted as scheduled in the reporting month.
5.1.2
Due to the raise in public concern, noise monitoring frequency for NMC05
has been increased to twice a week since 27 April 2020.
5.1.3
One limit level exceedance was
recorded at NMC05 on 28 May 2020. Investigation of the exceedance was still in progress and would be
reported in the coming report.
5.1.4
Noise monitoring results
measured in this reporting period are reviewed and summarized. Details of noise
monitoring results and graphical presentation can be referred in Appendix 5.2.
5.2.1
All 1-hour TSP monitoring was
conducted as scheduled in the reporting month.
5.2.2
No action or limit level
exceedance was recorded in the reporting period.
5.2.3
Air quality monitoring results
measured in this reporting period are reviewed and summarized. Details of air monitoring results and
graphical presentation can be referred in Appendix 5.3.
5.3.1 All water quality monitoring was
conducted as scheduled in the reporting month.
5.3.2 No water can be collected at Station AC1
in May 2020 as the station was dried out during the monitoring scheduled in the
reporting month.
5.3.3 No water can be collected at Station E
on 2, 4, 6, 8, 11, 13, 15, 18, 20, 25 and 29 May 2020 as the station was dried
out during the monitoring scheduled in the reporting month.
5.3.4 Two (2) suspended solid limit level
exceedances were recorded at Station F on 18 and 27 May 2020. Investigation of
the exceedance was still in progress and would be reported in the coming report.
5.3.5 One (1) Turbidity limit level exceedance
was recorded at Station F on 27 May 2020. Investigation of the exceedance was
still in progress and would be reported in the coming report.
5.3.6 Two (2) suspended solid limit level
exceedances were recorded at Station I on 2 and 18 May 2020. Investigation of
the exceedance was still in progress and would be reported in the coming report.
5.3.7
Water quality monitoring results measured in this reporting period are
reviewed and summarized. Details of water quality monitoring results and
graphical presentation can be referred in Appendix 5.4.
5.4.1
The quantities of waste for disposal in the Reporting Period are
summarized in Table 5.1 and Table 5.2. The Monthly Summary Waste
Flow Table is shown in Appendix 5.5. Whenever possible, materials were
reused on-site as far as practicable.
Table 5.1 Summary of Quantities of Inert C&D Materials
Waste Type |
Quantity (this month) |
Quantity (Project commencement to the end of last month) |
Cumulative
Quantity-to-Date |
Disposal Location |
Hard Rock and Large Broken Concrete (Inert) (in ‘000m3) |
0 |
0 |
0 |
Nil |
Reused in this Contract (Inert) (in ‘000m3) |
0 |
0.91 |
0.91 |
Nil |
Reused in other Projects (Inert) (in ‘000m3) |
0 |
11.747 |
12.715 |
Nil |
Disposal as Public Fill (Inert) (in ‘000m3) |
0.38 |
35.03 |
35.41 |
TKO137 |
Table 5.2 Summary of Quantities of C&D Wastes
Waste Type |
Quantity (this month) |
Quantity (Project
commencement to the end of last month) |
Cumulative
Quantity-to-Date |
Disposal Location |
Metals (in ‘000kg) |
0.1 |
0.041 |
0.141 |
Nil (waste recycle was arranged) |
Paper / Cardboard Packing (in ‘000kg) |
2 |
0.918 |
2.918 |
Nil (waste recycle was arranged) |
Plastics (in ‘000kg) |
0.3 |
1.241 |
1.541 |
Nil (waste
recycle was arranged) |
Chemical Wastes (in ‘000kg) |
1 |
0 |
1 |
Nil |
General Refuses (in ‘000m3) |
0.026 |
0.532 |
0.557 |
SENT |
6.0.1.
The Event Action Plan for construction noise, air quality and water
quality are presented in Appendix 6.1.
6.0.2.
The summary of exceedance is presented in Appendix 6.2.
6.1.1 One limit level exceedance was recorded
at NMC05 on 28 May 2020. Investigation of the exceedance was
still in progress and would be reported in the coming report.
6.2.1
No action or limit level exceedance was recorded in the reporting
period. Investigation of the exceedance was still in progress and would be
reported in the coming report.
6.3.2
No water can be collected at Station E on 2, 4, 6, 8, 11, 13, 15, 18,
20, 25 and 29 May 2020 as the station was dried out during the monitoring
scheduled in the reporting month.
6.3.3
Two (2) suspended solid limit level exceedances were recorded at Station
F on 18 and 27 May 2020. Investigation of the exceedance was still in progress
and would be reported in the coming report.
6.3.4
One (1) Turbidity limit level exceedance was recorded at Station F on 27
May 2020. Investigation of the exceedance was still in progress and would be
reported in the coming report.
6.3.5
Two (2) suspended solid limit level exceedances were recorded at Station
I on 2 and 18 May 2020. Investigation of the exceedance was still in progress
and would be reported in the coming report.
6.4.1
No environmental non-compliance was recorded in the reporting month.
6.5.1
There was no particular action taken since no non-compliance was
recorded in the reporting period.
7.0.1.
Within this reporting month, weekly environmental site audits were
conducted on 8, 15, 22 and 29 May 2020. IEC attended the joint site
inspection on 8 May
2020.
7.0.2. No non-compliance was found during
the site inspection while reminders on environmental measures were recommended.
Results and findings
of these inspections in this reporting month are listed below in Table 7.1.
Table 7.1 Summary of
Environmental Inspections
Date |
Item |
Reminder(s)/ Observation(s) |
Action taken by Contractor |
Outcome |
15 May 2020 |
20200515_1 |
The silt on the road within the site boundary
and the broken sand bag should be cleared to avoid surface runoff. (RIW1,
pile jacking area) |
Pending |
Pending |
22 May 2020 |
20200522_1 |
Damaged sand bags
should be replaced and placed on the pedestrian to act as bund (RIW2) |
Pending |
Pending |
22 May 2020 |
20200522_2 |
The silt near the
existing drainage should be removed regularly to avoid dropping into the
drainage (RIW2) |
The silt has been
cleared. |
Item was rectified on 26 May 2020 |
22 May 2020 |
20200522_3 |
The contractor should
review the function of the waste water treatment facility to ensure the
discharge meeting the requirement stated in discharge license. (RIW2) |
Pending |
Pending |
29 May 2020 |
20200529_1 |
The chemical
containers should be stored properly or drip tray should be provided. (D3
slope RIW3 & D1 Slope of RIW3) |
Pending |
Pending |
7.0.3.
Within this reporting month, biweekly landscape site audits were
conducted on 4 and 20 May 2020.
7.0.4.
No non-compliance was found during the landscape site inspection.
Results and findings
of these inspections in this reporting month are listed below in Table 7.2.
Table 7.2 Summary of
Landscape site inspections
Date |
Item |
Reminder(s)/ Observation(s) |
Action taken by Contractor |
Outcome |
4 May 2020 |
20200504_1 |
Weeding is recommended in the planting area.
(RIW3) |
Weeing has been implemented |
Completed as observed on 20 May 2020 |
4 May 2020 |
20200504_2 |
Debris should be
removed at the nursery. |
Refer to item no.
20200422_1 |
Pending |
4 May 2020 |
20200504_3 |
Dead trees
R-T01863(T) and R-T01871(T) were observed, the contractor was reminded to
replace the dead trees. |
Pending |
Pending |
20 May 2020 |
20200520_1 |
Dead trees
R-T01863(T) and R-T01871(T) were observed, the contractor was reminded to
replace the dead trees. |
Refer to item no.
20200504_3 |
Pending |
7.0.5.
Within this reporting month, monthly ecological monitoring was conducted
on 4 May 2020.
7.0.6.
No non-compliance was found during the ecological monitoring. Results
and finding of the inspection in this reporting month is listed below in Table
7.3
Table 7.3 Summary of
Ecological Monitoring
Date |
Item |
Reminder(s)/ Observation(s) |
Action taken by Contractor |
Outcome |
4 May 2020 |
20200504_1 |
Yellow leaves were observed in particular
individuals. |
Close monitoring on the particular
individuals. |
On-going |
8.0.1.
Two environmental complaints were received in this reporting month.
8.0.2.
The complainant reported through the
1823 electronic form dated on 18 May 2020 that silty water was discharged to
public road, New Clear Water Bay Road, from the construction site at the slope
under Shun Lee Disciplined Services Quarters.
The
complaint concerned on the silty runoff at New Clear Water Bay Road was
referred by AECOM to ET on 21 May 2020.
According
to the information provided by the contractor, silty runoff to public road was
due to the damaged pipe at the top of the slope Shun Lee Disciplined Services
Quarters, water leaked from the pipe flew along the exposed down slope and
became silty.
Amber
warning signal was in force in the morning. The water pipe might be damaged due
to sudden heavy rainfall.
According
to the information provided by the contractor, water leaked from the damaged
pipe flew through the exposed slope and became silty. Silty runoff flew to the
public road from the site exit. No bunds were set up at the site exit.
Inspection
was conducted with contractor on 22 May 2020. Temporary site drainage was
insufficient to contain site surface runoff and most of the u-channel were
blocked by deposited soil.
Remedial
action taken according to the observations by ET:
1. Placing sand bags at the perimeter of the site
and the site exit as bunds.
2. Repairing the damaged pipe to stop the water
leakage.
ET
recommended the contractor to review and improve the existing temporary
drainage system to ensure site surface runoff is properly contained and provide
sufficient water pumps to divert surface runoff to wastewater treatment unit in
order to avoid muddy runoff to public road.
ET
recommended the contractor to deploy sedimentation tank and wastewater
treatment facilities with sufficient capacity to handle the predicted volume of
wastewater during rainy seasons.
ET
recommended the contractor to properly maintain the mitigation measures on site
to avoid surface runoff to public road, including but not limited to; regular
cleaning of u-channel and drains to maintain the function of temporary
drainage; regular check and repair defects on water pipe; regular check the
operation of wastewater treatment unit / sediment tanks and deploy addition
treatment units when necessary to ensure effective wastewater treatment.
Joint
site inspection by ET and contractor had observed that no water leakage was
observed and sand bags were added at site exit as bunds
8.0.3. The
complainant reported through the1823 electronic form dated on 25 May 2020 that
silty water was discharged to public road, New Clear Water Bay Road from the
construction site at the slope under Shun Lee Disciplined Services Quarters.
The
complaint concerned on the silty runoff at New Clear Water Bay Road was
referred by AECOM to ET on 3 June 2020 respectively.
According
to the observation and inspection, the silty runoff should be caused by the
large volume of water flow through the soil surface of the construction site
after heavy rainfall.
Amber and
Red Warning Signal were in force in the morning. This may be the major cause
that large volume of water flow through soil surface of the construction site
causing the silty runoff.
According
to the observation on 30 May 2020, silty runoff was observed flowing to the
public road at New Clear Water Bay Road and also flowing into the public
rainstorm drainage.
Inspection
was conducted by ET on 4 June 2020, temporary drainages was found insufficient
to contain surface runoff and the blockage of existing channel was observed.
Joint
inspection was conducted with ET, contractor and RSS on 5 June 2020. Temporary
drainages were found missing at some area of the construction site and
protection was not enough at the perimeter of the site to avoid runoff to
public area.
Remedial
action taken according to the observations by ET:
1. Placing sand bags at the site boundary and the
site exit as bunds.
2. Deployed one more set of sedimentation tank and
wastewater treatment facilities.
3. Diversion of part of the runoff from the top of
the slope to avoid flowing through soil surface.
ET
recommended the contractor to review and improve the existing temporary
drainage system to ensure site surface runoff is properly contained and provide
sufficient water pumps to divert surface runoff to wastewater treatment unit in
order to avoid muddy runoff to public road.
ET
recommended the contractor to deploy sedimentation tank and wastewater
treatment facilities with sufficient capacity to handle the predicted volume of
wastewater during rainy seasons.
ET
recommended the contractor to review the drainage system and mitigation
measures at perimeter of site to avoid surface runoff flow to public area.
8.0.4.
The details of cumulative complaint log and updated summary of complaints
are presented in Appendix 8.1.
8.0.5.
Cumulative statistic on complaints and successful prosecutions are
summarized in Table 8.1 and Table 8.2 respectively.
Table 8.1 Cumulative
Statistics on Complaints
Reporting
Period |
No.
of Complaints |
May
2020 |
2 |
Project
commencement to the end of last reporting month |
4 |
Total |
6 |
Table 8.2 Cumulative
Statistics on Successful Prosecutions
Environmental
Parameters |
Cumulative
No. Brought Forward |
No.
of Successful Prosecutions this month (Offence Date) |
Cumulative
No. Project-to-Date |
Air |
- |
0 |
0 |
Noise |
- |
0 |
0 |
Water |
- |
0 |
0 |
Waste |
- |
0 |
0 |
Total |
- |
0 |
0 |
9.0.1.
The EM&A programme was carried out in accordance with the EM&A
Manual requirements, minor alterations to the programme proposed were made in
response to changing circumstances.
9.0.2.
The performance of the environmental management system of the previous
three months (quarter) was generally satisfied. Mitigation measures according
to the environmental mitigation implementation schedule and the EIA were
generally implemented by the Contractor. Hence, the EM&A programme was
considered effective and shall be maintained. The status of the water quality
station shall be kept in view, as station E usually was dried out.
9.0.3.
The scheduled construction activities and the recommended mitigation
measures for the coming 2 months are listed in Table 9.1. The construction programmes of the Project are provided
in Appendix 9.1.
Table 9.1 Construction Activities and Recommended
Mitigation Measures in Coming Reporting 2
Months
Key Construction Works |
Recommended Mitigation Measures |
·
Site formation and temporary soil nail installation at RWC2 Type 1
& 1a and 2; ·
Site formation and temporary soil nail installation for RIW2 Type 4,
6,7 & 8; ·
Removal of Platform 2; ·
Trenchless construction for gasmain redirection at Slip Road 2; ·
RC base slab construction at KS27; ·
Soil nail installation at Slope C1 at Zone 7; ·
Footing construction at Zone 5; ·
Removal of Lamp posts and erect temporary lamp posts at Central
Median; ·
Piling platform construction at CT4; ·
Predrilling works at SE2; ·
Mini-pile installation works at RWD1; ·
ELS construction for Noise Barrier Footing SE1; ·
Mini-pile and ELS construction at Slope D2; ·
Stage 1 rock excavation at Slope D3; and ·
Retaining wall construction at Slope D3; ·
No-fines concrete construction at Slope D3; ·
Rock-fall Fence (Stage 2) along Lin Tak Road. ·
Watermain works at Sau Mau Ping Road |
·
Dust control during dust generating works; ·
Implementation of proper noise pollution control; and ·
Provision of protection to ensure no runoff out of site area or direct
discharge into public drainage system. |