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 |
10, 14, 21 and 28 May 24 |
2, 8, 14, 22 and 29 May 24 |
3, 10, 17, 24 and 31 May 24 |
2, 9, 13, 23 and 30 May 24 |
6, 16, 20 and 27 May 24 |
N/A |
3, 10, 17, 24 and 31 May 24 |
Joint Site Audit with representative of the Supervisor¡¦s Representative, the Contractor and IEC |
10 May 24 |
22 May 24 |
31 May 24 |
13 May 24 |
16 May 24 |
N/A |
17 May 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 |
21/05/2024 |
Muddy debris was observed at the haul road
of Portion 6A. Contractor was reminded to clean the road and enhanced the
wheel washing system. |
Improvement/Rectification was observed
during follow-up audit session on 28 May 2024. |
Contract No.: ND/2019/02 |
|||
Water Quality |
24/04/2024 |
Water mitigation
measures should be enhanced to avoid muddy runoff discharge into manholes.
(Dill¡¦s Corner) |
Improvement/Rectification was observed during
follow-up audit session on 2 May 2024. |
02/05/2024 |
Muddy water runoff was
observed flowing into nearby outlet at Portion 11. Contractor was reminded to
enhance water mitigation measures to prevent runoff entering water bodies,
and redirect any groundwater pumped out to water treatment facilities. |
Item
remarked as 240508-O01. Follow-up action is needed to be review. |
|
08/05/2024 |
Item
remarked as 240514-O01. Follow-up action is needed to be review. |
||
14/05/2024 |
Contractors were
reminded to immediately establish proper drainage system for muddy runoff at
Portion 11. |
Item
remarked as 240522-O01. Follow-up action is needed to be review. |
|
22/05/2024 |
Item
remarked as 240529-O01. Follow-up action is needed to be review. |
||
29/05/2024 |
Follow-up
action is needed to be reported in the following month. |
||
02/05/2024 |
Wetsep at Portion 5 were observed not properly in function. Contractor was
reminded to ensure its proper functioning in treatment of wastewater before
discharge. |
Item
remarked as 240508-O02. Follow-up action is needed to be review. |
|
08/05/2024 |
Item
remarked as 240514-R02. Follow-up action is needed to be review. |
||
14/05/2024 |
Maintenance should be
provided to the Wetsep ay Portion 5. |
Improvement/Rectification was observed during
follow-up audit session on 22 May 2024. |
|
24/04/2024 |
Review the drainage
system to ensure the existing water pipe was connected to wetsep
and discharged into a valid
location. |
Item
remarked as 240502-R02. Follow-up action is needed to be review. |
|
02/05/2024 |
Item
remarked as 240508-R02. Follow-up action is needed to be review. |
||
08/05/2024 |
Item
remarked as 240514-O02. Follow-up action is needed to be review. |
||
14/05/2024 |
Contractors were
reminded to immediately establish proper drainage system for pumped
groundwater at Portion 7. |
Item
remarked as 240522-O02. Follow-up action is needed to be review. |
|
22/05/2024 |
Item
remarked as 240529-O02. Follow-up action is needed to be review. |
||
29/05/2024 |
Follow-up
action is needed to be reported in the following month. |
||
24/04/2024 |
Vehicles exits should
be paved to ensure vehicles remain clean when leaving the site. (Portion 5) |
Item
remarked as 240502-R03. Follow-up action is needed to be review. |
|
02/05/2024 |
Item
remarked as 240508-R03. Follow-up action is needed to be review. |
||
08/05/2024 |
Vehicles exits should
be paved to ensure vehicles remain clean when leaving the site. (Portion 4 and 5) |
Item
remarked as 240514-R03. Follow-up action is needed to be review. |
|
14/05/2024 |
Item
remarked as 240522-R03. Follow-up action is needed to be review. |
||
22/05/2024 |
Improvement/Rectification was observed during
follow-up audit session on 29 May 2024. |
||
24/04/2024 |
Sandbag bund should be
enhanced to avoid muddy runoff discharge. (Portion 3) |
Item
remarked as 240502-R04. Follow-up action is needed to be review. |
|
02/05/2024 |
Sandbag bund should be
enhanced to avoid muddy runoff discharge. (Portion 3, 4 and 7) |
Item
remarked as 240508-R04. Follow-up action is needed to be review. |
|
08/05/2024 |
Sandbag bund should be
enhanced to avoid muddy runoff discharge. (Portion 4 and 7) |
Item
remarked as 240514-R04. Follow-up action is needed to be review. |
|
14/05/2024 |
Item
remarked as 240522-R04. Follow-up action is needed to be review. |
||
22/05/2024 |
Item
remarked as 240529-R04. Follow-up action is needed to be review. |
||
29/05/2024 |
Sandbag bund should be
enhanced to avoid muddy runoff discharge. (Portion 4) |
Follow-up
action is needed to be reported in the following month. |
|
02/05/2024 |
Exposed slope at
Portion 4 should be properly covered with tarpaulin sheets. |
Item
remarked as 240508-R05. Follow-up action is needed to be review. |
|
08/05/2024 |
Item
remarked as 240514-R05. Follow-up action is needed to be review. |
||
14/05/2024 |
Item
remarked as 240522-R05. Follow-up action is needed to be review. |
||
22/05/2024 |
Improvement/Rectification was observed during
follow-up audit session on 29 May 2024. |
||
22/05/2024 |
Earth bund at Portion 6
should be maintained. |
Item remarked
as 240529-R02. Follow-up action is needed to be review. |
|
29/05/2024 |
Follow-up
action is needed to be reported in the following month. |
||
Air Quality |
02/05/2024 |
Large mud trails were observed
outside of vehicle exit at Portion 4. Contractor was reminded to ensure
vehicles were properly cleaned before leaving the site. |
Improvement/Rectification was observed during
follow-up audit session on 8 May 2024. |
Waste / Chemical Management |
24/04/2024 |
Oily content in the
drip tray should be cleared. (Portion 7) |
Improvement/Rectification was observed during
follow-up audit session on 2 May 2024. |
14/05/2024 |
Construction waste near
the nullah at Portion 11 should be cleared. |
Item remarked
as 240522-R06. Follow-up action is needed to be review. |
|
22/05/2024 |
Improvement/Rectification was observed during
follow-up audit session on 29 May 2024. |
||
Ecology |
24/04/2024 |
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 240502-R01. Follow-up action is needed to be review. |
02/05/2024 |
Item
remarked as 240508-R01. Follow-up action is needed to be review. |
||
08/05/2024 |
Item
remarked as 240514-R01. Follow-up action is needed to be review. |
||
14/05/2024 |
Item
remarked as 240522-R01. Follow-up action is needed to be review. |
||
22/05/2024 |
Dull green hoarding
should be erected along the site boundary as according to the submitted
location plan. |
Item
remarked as 240529-R01. Follow-up action is needed to be review. |
|
29/05/2024 |
Follow-up
action is needed to be reported in the following month. |
||
29/05/2024 |
Silt curtain at Portion
5 should be maintained properly. |
Follow-up
action is needed to be reported in the following month. |
|
Contract No.: ND/2019/03 |
|||
Air Quality |
26/04/2024 |
Dusty haul road should be watered regularly. |
Improvement/Rectification was observed
during follow-up audit session on 3 May 2024. |
Water Quality |
31/05/2024 |
Provide mitigation measure to avoid surface runoff to existing
drainage. |
Follow-up action is needed to be reported in the following month. |
Waste/Chemical Management |
26/04/2024 |
Drip tray should be provided for chemical/fuel containers. |
Improvement/Rectification was observed during
follow-up audit session on 3 May 2024. |
26/04/2024 |
Accumulation of general refuse should be avoided. |
Improvement/Rectification was observed during
follow-up audit session on 3 May 2024. |
|
10/05/2024 |
Provide drip tray for chemical/fuel containers. |
Item
remarked as 240517-F01. Follow-up action is needed to be review. |
|
17/05/2024 |
Improvement/Rectification was observed during
follow-up audit session on 24 May 2024. |
||
31/05/2024 |
Provide drip tray for chemical/fuel containers |
Follow-up
action is needed to be reported in the following month. |
|
Contract No.: ND/2019/04 |
|||
Air Quality |
09/05/2024 |
Dusty stockpile should be covered by impervious sheeting. (Location:
A301) |
Improvement/Rectification was observed
during follow-up audit session on 13 May 2024. |
Ecology |
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. |
Improvement/Rectification was observed
during follow-up audit session on 2 May 2024. |
25/04/2024 |
The silt curtain at Bridge A should be maintained properly and
regularly. |
Improvement/Rectification was observed
during follow-up audit session on 2 May 2024. |
|
09/05/2024 |
The 2m high green barrier of the 10m vegetated buffer zone should be
maintained properly and regularly. |
Improvement/Rectification was observed
during follow-up audit session on 13 May 2024. |
|
30/05/2024 |
Silt curtain at Bridge F should be maintained properly. |
Follow-up action is needed to be reported in the following month. |
|
Water Quality |
13/05/2024 |
Water mitigation measures at A3-01 should be enhanced to prevent muddy
water discharge into Ng Tung River. |
Item remarked as 240523-R01. Follow-up action is needed to be review. |
23/05/2024 |
Item remarked as 240530-R01. Follow-up action is needed to be review. |
||
30/05/2024 |
Follow-up action is needed to be reported in the following month. |
||
30/05/2024 |
Sandbag bunds or concrete bunds or any other mitigation measures
should be implemented to avoid surface runoff exceeds the site boundary. |
Follow-up action is needed to be reported in the following month. |
|
Waste / Chemical Management |
02/05/2024 |
Drip tray for the chemical/fuel containers should be provided. |
Improvement/Rectification was observed
during follow-up audit session on 9 May 2024. |
09/05/2024 |
The silt curtain should be maintained to avoid waste accumulation. |
Improvement/Rectification was observed
during follow-up audit session on 13 May 2024. |
|
09/05/2024 |
Drip tray should be cleaned regularly to avoid overflow. (Location:
A1) |
Improvement/Rectification was observed
during follow-up audit session on 13 May 2024. |
|
Contract No.: ND/2019/05 |
|||
Water Quality |
29/04/2024 |
Cutoff drainage or earth bunding should be implemented at the
pedestrian exit of Bridge C to prevent muddy water leakage. |
Improvement/Rectification
was observed during follow-up audit session on 6 May 2024. |
Waste/Chemical Management |
29/04/2024 |
Drip tray for the chemical/fuel containers should be provided. |
Improvement/Rectification
was observed during follow-up audit session on 6 May 2024. |
Contract No.: ND/2019/06 |
|||
-- |
-- |
-- |
-- |
Contract No.: ND/2019/07 |
|||
Water Quality |
26/04/2024 |
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. |
Improvement/Rectification was observed
during follow-up audit session on 3 May 2024. |
24/05/2024 |
The site should be generally kept clean and tidy. |
Improvement/Rectification was observed
during follow-up audit session on 31 May 2024. |
Table 10.3 Summary
Table for the Outstanding item(s) in the reporting month
Contract No. |
Outstanding deficiencies
since last reporting month (Apr 2024) |
Deficiencies recorded in the reporting month (May 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 (June 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 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
ND/2019/02 |
6 |
1 |
/ |
28 |
2 |
/ |
/ |
6 |
/ |
37 |
7 |
/ |
/ |
4 |
/ |
/ |
/ |
2 |
/ |
6 |
ND/2019/03 |
3 |
/ |
/ |
1 |
3 |
/ |
/ |
/ |
/ |
4 |
4 |
/ |
/ |
1 |
1 |
/ |
/ |
/ |
/ |
2 |
ND/2019/04 |
2 |
1 |
/ |
4 |
3 |
/ |
/ |
2 |
/ |
10 |
7 |
/ |
/ |
2 |
/ |
/ |
/ |
1 |
/ |
3 |
ND/2019/05 |
2 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
2 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
ND/2019/06* |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
ND/2019/07 |
1 |
/ |
/ |
1 |
/ |
/ |
/ |
/ |
/ |
1 |
2 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
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 ¡P 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 10.5.
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 |
Provision of maintenance for the drainage and sump
pit around the construction site |
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 at different works area |
Provision of sand bags around works area and sump pit to prevent the untreated muddy water |
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 10.6.
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 |
An Artamus fuscus was recorded |
Wet agricultural land |