3.
MONITORING RESULTS
3.1
The weather during
monitoring sessions was
summarized in Table 3.1.
Table 3.1 Summary of Weather Conditions in the Reporting Period
|
Reporting Month |
General Weather Conditions |
|
May
2020 |
Sunny, Cloudy and Rainy |
|
June
2020 |
Sunny, Cloudy and Rainy |
|
July
2020 |
Sunny, Cloudy and Rainy |
3.2
The detail of weather conditions for each individual monitoring session
was presented in the monthly EM&A report.
3.3
All 1-hour TSP monitoring was conducted as scheduled in the
reporting quarter. No Action/Limit Level exceedance was recorded.
3.4
All 24-hour TSP monitoring was conducted as
scheduled in the reporting quarter. No Action / Limit Level exceedance was
recorded.
3.5
The graphical presentations of the air quality monitoring results
are shown in Appendix C.
May 2020
3.6
All noise monitoring was conducted as scheduled in the reporting
month. Two (3) Action Level exceedances were recorded due to the documented
complaints received in this reporting month. One (1) Limit Level exceedances
for night-time construction noise monitoring were recorded. No Limit Level
exceedance for day time was recorded in the reporting month. The summary of
documented complaints and the complaint investigation in reporting month are
tabulated in Table 3.2.
Table
3.2 Summary of Documented Complaints
in May 2020
|
Complaint Type |
Investigation
Findings |
Follow-up
Action / Mitigation Measure |
|
Lam Tin Side |
||
|
Repeated
percussive noise nuisance from tunnel works |
Considered as
project related. Breaking activities were conducted at the concerned
locations during the period of complaint. The details shall be referred to
CIR-N105 |
The Contractor is reminded to arrange the works to less
sensitive hours and repair machines regularly. |
|
Noise
nuisance at Morning nearby East Habour Crossing |
||
|
Tseung Kwan O Side |
||
|
Noise
nuisance generated in the early morning |
Considered as
project-related. Breaking works and preloading works are considered to be the
major source of noise nuisance. The details shall be referred to CIR-N104 |
The contractor
is reminded to strictly follow the CNMP and applied noise barrier to PMEs. |
|
Odour
nuisance nearby MTR Station |
Considered to be
non-project-related. No direct evidence pointing towards to C3 was the origin
of odour. The details shall be referred to CIR-A17 |
N.A. |
|
Noise
nuisance at night and related air quality impact |
Considered to be
project-related. The noise originated from the tunnel works of C1 and no
significant impact was done to air quality. Details shall be refer to CIR-C36 |
The
contractor of C1 is reminded to keep the blast door shut while undergoing
construction in the tunnel. |
June 2020
3.7
All noise monitoring was conducted as scheduled in the reporting
month. Three (3) Action Level exceedances were recorded due to the documented
complaints received in this reporting month. No Limit Level exceedances for both
day-time and night-time construction noise monitoring were recorded in the
reporting month. The summary of documented complaints and the complaint
investigations in reporting month are tabulated in Table 3.3.
Table 3.3 Summary of Documented Complaints in June
2020
|
Complaint Type |
Investigation
Findings |
Follow-up
Action / Mitigation Measure |
|
Tseung Kwan O Side |
||
|
Muddy water observation after downpour |
The complaint is considered non-project-related. The muddy
water was caused by heavy rainfall and it was a phenomenon spreading among
the Tseung Kwan O sea area. The details shall be
referred to CIR-W14. |
NIL |
|
Malodor suspected coming from works area |
The complaint is considered non-project-related as no direct
evidence pointing C3 was the origin of source. The details shall be referred
to CIR-A17 |
NIL |
|
Suspected oil leakage and noise nuisance since Late June |
The suspected
oil leakage was in fact algal bloom occurred due to high temperature. The
noise nuisance is considered to be project-related. Details shall be referred
to CIR-C36. |
The contractors
are reminded to strictly follows the approved CNMP and apply adequate noise
mitigation measures to reduce possible noise nuisance. |
July 2020
3.8
All noise monitoring was conducted as scheduled in the reporting
month. Four (4) Action Level exceedances were recorded due to the documented
complaints received in this reporting month. No exceedances for daytime and night-time
construction noise monitoring were. The summary of documented complaints and
the complaint investigations in reporting month are tabulated in Table 3.4.
Table 3.4 Summary
of Complaints Details in April 2020
|
Complaint Type |
Investigation
Findings |
Follow-up
Action / Mitigation Measure |
|
|
Lam Tin Side |
|||
|
Noise nuisance
suspected from the tunnel |
Breaking had
been conducted at the concerned locations during the time of complaint. The
complaint was therefore considered as project-related. Details shall be
referred to CIR-N107. |
The Contractor
is reminded to arrange the works to less sensitive hours and strictly follows
the requirements of CNP. |
|
|
Tseung Kwan O Side |
|||
|
Dark smoke emission from barge |
The dark smoke was emitted by a barge from C2 when the engine
was starting and therefore the complaint is considered as project-related. The details shall be referred to
CIR-A18. |
NIL |
|
|
Noise nuisance on weekdays |
The noise nuisance was due to construction works of the project.
The details shall be referred to CIR-N108 |
The Contractor are reminded to follow
the CNMP to apply noise mitigation measures. |
|
|
Breaking noise in the morning |
The noise nuisance was believed coming from the nearby ASD site
instead of the TKOLTT project site. The work schedules had been reviewed and
none of the sites had used breaker/piler at the
time of complaint. Therefore, the complaint is considered as non-project
related. |
NIL |
|
3.9
The
graphical presentations of the noise monitoring results are shown in Appendix D.