10.1
Site
audits were carried out by ET on a weekly basis to monitor the timely implementation
of proper environmental management practices and mitigation measures on the
Contract site. Summary
of the site
audits are presented in Table 10.1 and Appendix P.
Table 10.1 Summary
of Site Audits
Environmental Site
Inspection |
Works Contracts |
||||||
ND/2019/01 |
ND/2019/02 |
ND/2019/03 |
ND/2019/04 |
ND/2019/05 |
ND/2019/06 |
ND/2019/07 |
|
Weekly site audit with representative
of the Supervisor’s Representative
and the Contractor |
2, 9, 17, 25 and 30 Apr 24 |
3, 10, 19 and 24 Apr 24 |
5, 12, 16 and 26 Apr 24 |
3, 11, 16 and 25 Apr 24 |
2, 8, 18, 22 and 29 Apr 24 |
N/A |
5, 12, 19 and 26 Apr 24 |
Joint
Site Audit with representative of the Supervisor’s Representative, the
Contractor and IEC |
17 Apr 24 |
24 Apr 24 |
16 Apr 24 |
16 Apr 24 |
18 Apr 24 |
N/A |
19 Apr 24 |
Remarks: The weekly site
inspection for ND/2019/06 has been terminated starting from 19/10/2023 since
the termination proposal was approved by EPD on the same day.
10.2
During
site inspections in the reporting month, no non-conformance was identified. The
observations and recommendations made during the audit sessions are summarised in Table
10.2. Any outstanding and recurrence deficiencies are presented in Table
10.3.
10.3
All
construction activities with significant environmental impact undertaken by
Contract No. ND/2019/06 was substantially completed in March 2022 and the majority
of outstanding works were also completed
in April 2022 with defect rectification works remained. The outstanding installation works
were
the short-duration works which would be completed within 2 months during
the 1-year defect correction period, originally estimated.
10.4
Due to problems
in material deliveries from Mainland China in 2022, the completion date of the
outstanding works would be extended to June 2023 tentatively. However, in June
2023, more defects were found during the handover inspection so the
rectification works were undertaken until July 2023 when all works were
completed.
10.5
The
weekly site inspection and EM&A Reporting for ND/2019/06 were maintained
until the termination proposal for ND/2019/06 has been endorsed by the IEC (17
Aug 23), the Engineer (26 Aug 23) and the Project Proponent (19 Sep 23)
followed by approval from EPD (19 Oct 23) in accordance. The procedure for
termination proposal for ND/2019/06 is in accordance with section 15.4.2 of
updated EM&A Manual.
Table
10.2
Observations and Recommendations during Site Audits
Date |
Observations and Recommendations |
Follow-up |
Contract No.: ND/2019/01 |
Water Quality |
25/04/2024 |
Review and maintain RC3 to ensure the open channel
has sufficient capacity at Portion 1B. |
Improvement/Rectification
was observed during follow-up audit session on 30 Apr 2024. |
Air Quality |
26/03/2024 |
Dust suppression measures should be enhanced
for the stockpiles of dusty materials at P13. |
Improvement/Rectification
was observed during follow-up audit session on 2 Apr 2024. |
02/04/2024 |
Dust suppression measures should be enhanced
for the dusty haul raod at P13 and at Dill’s Corner works area. |
Improvement/Rectification
was observed during follow-up audit session on 9 Apr 2024. |
Contract No.: ND/2019/02 |
Water Quality |
10/04/2024 |
Exposed slope next to
Shek Sheung River should be covered by impervious sheets properly. |
Improvement/Rectification was
observed during follow-up audit session on 19 Apr 2024. |
24/04/2024 |
Water mitigation
measures should be enhanced to avoid muddy runoff discharge into manholes.
(Dill’s Corner) |
Follow-up
action is needed to be reported in the following month. |
|
27/03/2024 |
Ensure that vehicles
leaving the Dill’s Corner works area are properly cleaned. |
Item
remarked as 240403-R04. Follow-up action is needed to be review. |
|
03/04/2024 |
Item
remarked as 240410-R04. Follow-up action is needed to be review. |
||
10/04/2024 |
Improvement/Rectification was
observed during follow-up audit session on 19 Apr 2024. |
||
27/03/2024 |
Review the drainage system
to ensure the existing water pipe was connected to wetsep
and discharged into a valid
location. |
Item
remarked as 240403-R02. Follow-up action is needed to be review. |
|
03/04/2024 |
Item remarked
as 240410-R02. Follow-up action is needed to be review. |
||
10/04/2024 |
Item
remarked as 240419-R02. Follow-up action is needed to be review. |
||
19/04/2024 |
Item
remarked as 240424-R02. Follow-up action is needed to be review. |
||
24/04/2024 |
Follow-up
action is needed to be reported in the following month. |
||
27/03/2024 |
Vehicles exits should
be paved to ensure vehicles remain clean when leaving the site. (Portion 5) |
Item remarked
as 240403-R03. Follow-up action is needed to be review. |
|
03/04/2024 |
Item
remarked as 240410-R03. Follow-up action is needed to be review. |
||
10/04/2024 |
Item
remarked as 240419-R03. Follow-up action is needed to be review. |
||
19/04/2024 |
Item
remarked as 240424-R03. Follow-up action is needed to be review. |
||
24/04/2024 |
Follow-up
action is needed to be reported in the following month. |
||
03/04/2024 |
Sandbag bund should be enhanced
to avoid muddy runoff discharge. (Portion 6) |
Item
remarked as 240410-R07. Follow-up action is needed to be review. |
|
10/04/2024 |
Item
remarked as 240419-R04. Follow-up action is needed to be review. |
||
19/04/2024 |
Item
remarked as 240424-R04. Follow-up action is needed to be review. |
||
24/04/2024 |
Sandbag bund should be
enhanced to avoid muddy runoff discharge. (Portion 3) |
Follow-up
action is needed to be reported in the following month. |
|
27/03/2024 |
Avoid muddy water discharge
to Sheung Yue River directly outside the Visitor Center. |
Improvement/Rectification was
observed during follow-up audit session on 3 Apr 2024. |
|
27/03/2024 |
Review the capacity of
the silt tank at Portion 5. |
Improvement/Rectification was
observed during follow-up audit session on 3 Apr 2024. |
|
Air Quality |
27/03/2024 |
Enhance the mitigation
measures of the stockpile of soil in Dill’s Corner. |
Item remarked
as 240403-R05. Follow-up action is needed to be review. |
03/04/2024 |
Item
remarked as 240410-R05. Follow-up action is needed to be review. |
||
10/04/2024 |
Improvement/Rectification was
observed during follow-up audit session on 19 Apr 2024. |
||
Waste / Chemical Management |
03/04/2024 |
Littering should be
avoided, especially near water bodies. |
Improvement/Rectification was
observed during follow-up audit session on 10 Apr 2024. |
19/04/2024 |
Oily content in the
drip tray should be cleared. (Portion 7) |
Item
remarked as 240424-R05. Follow-up action is needed to be review. |
|
24/04/2024 |
Follow-up
action is needed to be reported in the following month. |
||
Ecology |
27/03/2024 |
The removed green
hoarding along Sheung Yue River due to the construction works should be
replaced and maintained properly as soon as possible. |
Item
remarked as 240403-R01. Follow-up action is needed to be review. |
03/04/2024 |
Item remarked
as 240410-R01. Follow-up action is needed to be review. |
||
10/04/2024 |
Item
remarked as 240419-R01. Follow-up action is needed to be review. |
||
19/04/2024 |
Item
remarked as 240424-R01. Follow-up action is needed to be review. |
||
24/04/2024 |
Follow-up
action is needed to be reported in the following month. |
Contract No.: ND/2019/03 |
Air Quality |
12/04/2024 |
Dusty debris outside of site boundary should be cleared immediately. |
Improvement/Rectification
was observed during follow-up audit session on 16 Apr 2024. |
16/04/2024 |
Dusty haul road should be watered regularly. |
Item remarked as 240426-F01. Follow-up action is needed to be review. |
|
26/04/2024 |
Follow-up action is needed to be reported in the following month. |
||
Waste/Chemical Management |
16/04/2024 |
Drip tray should be provided for chemical/fuel containers. |
Item remarked as 240426-F02. Follow-up action is needed to be review. |
26/04/2024 |
Follow-up action is needed to be reported in the following month. |
||
16/04/2024 |
Accumulation of general refuse should be avoided. |
Item
remarked as 240426-F03. Follow-up action is needed to be review. |
|
26/04/2024 |
Follow-up
action is needed to be reported in the following month. |
Contract No.: ND/2019/04 |
Air Quality |
03/04/2024 |
Exposed haul road at Portion K should be water-sprayed regularly as
dust suppression. |
Improvement/Rectification
was observed during follow-up audit session on 11 Apr 2024. |
16/04/2024 |
Stockpile for backfill at A3-03 should be covered by impervious sheets
properly to avoid dust generation. |
Improvement/Rectification
was observed during follow-up audit session on 25 Apr 2024. |
|
Ecology |
28/03/2024 |
Broken silt curtain should be maintained or replaced immediately to
prevent muddy water discharge. |
Improvement/Rectification
was observed during follow-up audit session on 3 Apr 2024. |
25/04/2024 |
The 2m high green barrier of the 10m vegetated buffer zone between
A2-03 and A2-04 should be maintained properly and regularly. |
Follow-up action is needed to be reported in the following month. |
|
25/04/2024 |
The silt curtain at Bridge A should be maintained properly and
regularly. |
Follow-up action is needed to be reported in the following month. |
|
Water Quality |
28/03/2024 |
Review the drainage system to ensure that no untreated water flow
directly into the discharge point. |
Improvement/Rectification
was observed during follow-up audit session on 3 Apr 2024. |
Waste / Chemical Management |
28/03/2024 |
Accumulation of general waste should be avoided. |
Improvement/Rectification
was observed during follow-up audit session on 3 Apr 2024. |
Permits / Licences |
28/03/2024 |
A copy of Environmental Permit should be displayed at the site exit
conspicuously. |
Item remarked as 240403-R02. Follow-up action is needed to be review. |
03/04/2024 |
Improvement/Rectification
was observed during follow-up audit session on 11 Apr 2024. |
Contract No.:
ND/2019/05 |
Water Quality |
27/03/2024 |
Water mitigation measures should be enhanced at Portion VI cycling
track works area to ensure wastewater from wheel-washing would be collected and treated
properly. |
Item remarked as 240402-F01. Follow-up action is
needed to be review. |
02/04/2024 |
Item remarked as 240408-F01. Follow-up action is
needed to be review. |
||
08/04/2024 |
Improvement/Rectification
was observed during follow-up audit session on 18 Apr 2024. |
||
22/04/2024 |
Water mitigation measures should be enhanced at Bridge C. Muddy surface
runoff discharge through the site boundary was observed during raining. |
Item remarked as 240429-F01. Follow-up action is
needed to be review. |
|
29/04/2024 |
Cutoff drainage or earth bunding should be implemented at the
pedestrian exit of Bridge C to prevent muddy water leakage. |
Follow-up action is needed to be reported in the
following month. |
|
Air Quality |
08/04/2024 |
Valid NRMM label should be displayed properly on the generator at
Bridge B. |
Item remarked as 240418-R01. Follow-up action is
needed to be review. |
18/04/2024 |
Improvement/Rectification
was observed during follow-up audit session on 22 Apr 2024. |
||
Waste/Chemical Management |
29/04/2024 |
Drip tray for the chemical/fuel containers should be provided. |
Follow-up action is needed to be reported in the
following month. |
Contract No.: ND/2019/06 |
-- |
-- |
-- |
-- |
Contract No.: ND/2019/07 |
Water Quality |
05/04/2024 |
Review any potential spillage of waste water passing through the
hoarding. If any spillage is identified, please enhance the water mitigation measures and prevent it. |
Item remarked as 240412-R01. Follow-up action is needed to be review. |
12/04/2024 |
Item remarked as 240419-F01. Follow-up action is needed to be review. |
||
19/04/2024 |
Item remarked as 240426-F01. Follow-up action is needed to be review. |
||
26/04/2024 |
Follow-up action is needed to be reported in the following month. |
Table 10.3 Summary
Table for the Outstanding item(s) in the reporting month
Contract No. |
Outstanding
deficiencies since last reporting month (Mar
2024) |
Deficiencies
recorded in
the reporting month (Apr
2024) |
Total
deficiencies (including repeated deficiencies) in the reporting month |
Deficiencies
rectified in the reporting month |
Outstanding
deficiencies need
to be Follow-up in the next month (May
2024) |
Total outstanding
deficiencies |
||||||||||||||
A |
N |
W |
W/C |
CH |
L&V |
E |
P/L |
A |
N |
W |
W/C |
CH |
L&V |
E |
P/L |
|||||
ND/2019/01 |
1 |
1 |
/ |
1 |
/ |
/ |
/ |
/ |
/ |
2 |
3 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
ND/2019/02 |
8 |
2 |
/ |
16 |
3 |
/ |
/ |
4 |
/ |
25 |
6 |
/ |
/ |
4 |
1 |
/ |
/ |
1 |
/ |
6 |
ND/2019/03 |
/ |
3 |
/ |
/ |
4 |
/ |
/ |
/ |
/ |
7 |
1 |
1 |
/ |
/ |
2 |
/ |
/ |
/ |
/ |
3 |
ND/2019/04 |
4 |
2 |
/ |
/ |
/ |
/ |
/ |
2 |
1 |
5 |
6 |
/ |
/ |
/ |
/ |
/ |
/ |
2 |
/ |
2 |
ND/2019/05 |
1 |
2 |
/ |
4 |
1 |
/ |
/ |
/ |
/ |
7 |
2 |
/ |
/ |
1 |
1 |
/ |
/ |
/ |
/ |
2 |
ND/2019/06* |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
ND/2019/07 |
/ |
/ |
/ |
4 |
/ |
/ |
/ |
/ |
/ |
4 |
/ |
/ |
/ |
1 |
/ |
/ |
/ |
/ |
/ |
1 |
Legends:
A = Air Quality
N = Construction Noise Impact
W = Water Quality
W/C = Waste / Chemical Management
CH = Cultural Heritage
L&V = Landscape & Visual
E = Ecology
P/L = Permit / Licences
* The weekly site inspection for ND/2019/06 has been
terminated starting from 19/10/2023 since the termination proposal was approved
by EPD on the same day.
10.6
According
to the EIA Report, EPs and the Updated EM&A Manual, the mitigation measures
detailed in the documents are recommended to be implemented during the
construction phase. An updated summary of the Environmental Mitigation
Implementation Schedule is provided in Appendix
Q. The photographic records of measures as stipulated in EPs
to mitigate environmental impacts in the reporting month are presented in Table 10.4.
Table 10.4 Photographic Records and
Implementation Status of Measures
EP No. |
Condition |
Photographic Record |
Implementation Status |
EP-466/2013/A |
2.9 |
To minimise adverse impacts on
habitats of ecological importance
in the vicinity of the Project, 2m high solid dull green site barrier fences
shall be erected around all active works areas. |
^[1] |
EP-467/2013/A |
2.9 |
To minimise adverse impacts on
habitats of ecological importance
in the vicinity of the Project, 2m high solid dull green site barrier fences
shall be erected around all active works areas. |
^[1] |
EP-468/2013/A |
2.11 |
To minimise adverse impacts on habitats
of ecological importance in the vicinity of the Project, 2m high solid dull
green site barrier fences shall be erected around all active works areas. |
^[1] |
EP-469/2013 |
2.7 |
To minimise adverse impacts on
habitats of ecological importance in the vicinity of the Project, 2m high
solid dull green site barrier fences shall be erected around all active works
areas. |
^[1] |
EP-473/2013/A |
2.13 |
To minimise adverse impacts on
habitats of ecological importance in the vicinity of the Project, 2m high
solid dull green site barrier fences shall be erected around all active works
areas. |
^[1] |
EP-475/2013/A |
2.7 |
To minimise adverse impacts on habitats of ecological
importance in the vicinity of the Project, 2m high solid dull green site
barrier fences shall be erected around all active works areas. |
^[1] |
Implementation status: |
^ Mitigation
measure was fully implemented * Observation/reminder
was made during site audit but improved/rectified by the contractor # Observation/reminder
was made during site audit but not yet improved/ rectified by the contractor X Non-compliance
of mitigation measure · Non-compliance
but rectified by the contractor N/A
Not Applicable at this stage as
no such site activities were conducted in the reporting period |
Remark:
[1]: Barrier
fences might be subjected to change according to the phasing plan designed at
detailed design stage
10.7
The water quality mitigation measures
detailed in the EIA Report and the Updated EM&A Manual are recommended to
be implemented during the construction phase. Water quality mitigation measures
implemented by the contractors were closely monitored to prevent water
pollution, especially during rainy season. An updated summary of the
Environmental Mitigation Implementation Schedule is provided in Appendix Q.
Specific water quality mitigation measures for major construction works in the
reporting month are presented in Table 10.4.
Table 10.5 Specific Water Quality
Mitigation Measures for Major Construction Works in the Reporting Month
Works Contracts |
Photographic Records |
|
ND/2019/01 |
Hard paved
exposed slope surface |
Hydroseeding for slope
area |
ND/2019/02 |
Hard paved
exposed haul road |
Hard paved exposed slope surface |
ND/2019/03 |
Hard paved
exposed haul road |
Watering the main haul road regularly. |
ND/2019/04 |
Hard paved exposed slope surface |
Deployment of silt curtain around works area in Ng Tung River |
ND/2019/05 |
Covering dusty
stockpile |
Provision of sand bags around works area |
ND/2019/07 |
Covering exposed slope surface with
tarpaulin |
De-silting waste water before discharge |
Water quality mitigation
measures for site(s) in operation phase, remaining defect works |
||
ND/2019/06 |
Hard paved
exposed haul road |
Hard paved
exposed haul road |
10.8
Waste generated
from Contract Nos.
ND/2019/01, ND/2019/02, ND/2019/03, ND/2019/04, ND/2019/05 and ND/2019/07
included
inert construction and demolition (C&D) materials and non-inert C&D
wastes in the reporting
month.
The site of ND/2019/06 was handed over to AFCD for operation since 4 April
2022.
10.9
The amount of wastes generated by the construction works of the Contract
Nos.
ND/2019/01, ND/2019/02, ND/2019/03, ND/2019/04, ND/2019/05 and ND/2019/07 during the reporting month are shown in Appendix R. The site of
ND/2019/06 was handed over to AFCD for operation since 4 April 2022.
10.10 The Contractors are advised to minimise the wastes generated
through recycling or reusing. All mitigation measures stipulated in the Updated
EM&A Manual and waste management plans shall be fully implemented. The
status of implementation of waste management and reduction measures are
summited in Appendix Q.
10.11
Based on the findings of the EIA
Report, the area of Long Valley has been assessed as of high to very high
ecological value and is the largest contiguous area of freshwater wetland
habitats in Hong Kong. To safeguard the ecological value of Long Valley, about
37 hectares of land in Long Valley has been proposed to develop into Long
Valley Nature Park (LVNP) for conserving and enhancing the ecologically
important environment as well as for compensation of the wetland loss due to
the NDA development.
10.12
LVNP is developed according to the approved
Habitat Creation and Management Plan (HCMP) submitted under EP-468/2013/A. HCMP
provides a framework and specifications for development and management of LVNP
and guides the development to maintain and enhance the 37 hectares of low-lying
wetland habitats.
10.13
Regarding
the design, the zoning of land use in LVNP is intended to maintain the existing
mosaic pattern of wet and dry agriculture, while controlling the activities
that could potentially disturb target habitats and species. LVNP will be divided
into three broad zones of land use as below:
•
Biodiversity
Zone of about 21 hectares largely designated for biodiversity conservation
through cultivation of specified crops and habitat management.
•
Agricultural
Zone of about 11 hectares designated for commercially focuses crop production
and eco-friendly agricultural practice for farming.
•
Visitor
Zone of about 5 hectares designed to accommodate visitors as well as storage
and other facilities and for educational purposes.
10.14
The
construction of LVNP started in late 2019 and was expected to be completed in 2023.
During the construction
period, the progress of construction and wetland enhancement works has been
under observation by different stakeholders including AFCD and green groups.
Close communication between AFCD and CEDD were conducted to exchange views on
conservation, restoration and management of habitats
as well as on the planning and design of the park. In addition, advices
from green groups, Hong Kong Bird Watching Society (HKBWS) and The Conservancy
Association (CA), have been taken on habitat management of Long
Valley and potential effects on habitat and wildlife of each individual work
conducted in Long Valley. The last meeting was held on 18 November 2022 to share
the progress of LVNP with different stakeholders, including CEDD, AFCD, CA,
HKBWS, Contractor, ET, IEC and farmers.
10.15 Proposals on wetland creation and
restoration, dry agricultural land creation, pond creation, water treatment
wetland and design of irrigation channel were submitted by the Contractor to
achieve the objectives stated in HCMP and accepted by the Engineer with consent
from AFCD before implementation. The Contractor would consult the stakeholders for
recommendations and suggestions on mitigation measures to minimise
the environmental impacts arising from construction works. The progress of
works would
be arranged to minimise impacts to avifauna and
maintain the habitat for avifauna. The photographic records of site activities
in LVNP are presented in Table 10.5.
Table 10.6 Photographic Records of Site Activities in LVNP
Continuing agricultural practice in existing
farmland to maintain habitats in Long Valley |
|
Open water Habitat |
Open water Habitat |
Creation of wetland with designated habitat
for biodiversity conservation |
|
Planting of paddy rice to provide foraging
ground for Yellow-breasted Bunting |
|
Enhancement of irrigation
channel to provide reliable water source for farmland in Long Valley |
|
Provision of bird island (hidden area) |
Restoring of water flea pond to provide food
source to water birds |
Construction of storage sheds for farmers |
A Vanellus cinereus was recorded |
Wet agricultural land |