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 |
4, 12, 18 and 25 June 24 |
3, 13, 19 and 26 June 24 |
7, 14, 21 and 28 June 24 |
6, 11, 20 and 27 June 24 |
3, 13, 17 and 24 June 24 |
N/A |
7, 14, 21 and 28 June 24 |
Joint Site Audit with representative of the Supervisor¡¦s Representative, the Contractor and IEC |
12 June 24 |
26 June 24 |
21 June 24 |
11 June 24 |
13 June 24 |
N/A |
14 June 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 |
|||
Air Quality |
12/06/2024 |
Haul road outside Arsenic Soil Treatment
Plant should be kept clean. Muddy debris on road was generated by other
interfacing contractor¡¦s vehicle. |
Improvement/Rectification was observed
during follow-up audit session on 18 June 2024. |
Water Quality |
18/06/2024 |
Temporary drainage system at Portion 11b
should be reviewed and enhanced to prevent muddy surface runoff overflow. |
Improvement/Rectification was observed
during follow-up audit session on 25 June 2024. |
25/06/2024 |
Provide maintenance for the drainage system
to avoid unnecessary water accumulation. (Portion 1B) |
Follow-up action is needed to be reported in the following month. |
|
Waste/Chemical Management |
25/06/2024 |
Keep site clean and tidy. (Portion 6A) |
Follow-up action is needed to be reported in the following month. |
Contract No.: ND/2019/02 |
|||
Water Quality |
29/05/2024 |
Contractors were
reminded to immediately establish proper drainage system for muddy runoff at
Portion 11. |
Item remarked as 240603-O01. Follow-up action
is needed to be review. |
03/06/2024 |
Item remarked as 240613-O01. Follow-up action
is needed to be review. |
||
13/06/2024 |
Item remarked as 240619-O01. Follow-up action
is needed to be review. |
||
19/06/2024 |
Item remarked as 240626-O01. Follow-up action
is needed to be review. |
||
26/06/2024 |
Follow-up
action is needed to be reported in the following month. |
||
29/05/2024 |
Contractors were
reminded to immediately establish proper drainage system for pumped
groundwater at Portion 7. |
Item remarked as 240603-O02. Follow-up action is
needed to be review. |
|
03/06/2024 |
Item remarked as 240613-O02. Follow-up action is
needed to be review. |
||
13/06/2024 |
Item remarked as 240619-O02. Follow-up action is
needed to be review. |
||
19/06/2024 |
Item remarked as 240626-O02. Follow-up action is
needed to be review. |
||
26/06/2024 |
Follow-up
action is needed to be reported in the following month. |
||
29/05/2024 |
Sandbag bund should be
enhanced to avoid muddy runoff discharge. (Portion 4) |
Item remarked as 240603-R04. Follow-up action is
needed to be review. |
|
03/06/2024 |
Item remarked as 240613-R04. Follow-up action is
needed to be review. |
||
13/06/2024 |
Item remarked as 240619-R03. Follow-up action is
needed to be review. |
||
19/06/2024 |
Item remarked as 240626-R02. Follow-up action is
needed to be review. |
||
26/06/2024 |
Follow-up
action is needed to be reported in the following month. |
||
29/05/2024 |
Earth bund at Portion 6
should be maintained. |
Item remarked as 240603-R02. Follow-up action is
needed to be review. |
|
03/06/2024 |
Item remarked as 240613-R02. Follow-up action is
needed to be review. |
||
13/06/2024 |
Item remarked as 240619-R02. Follow-up action is needed
to be review. |
||
19/06/2024 |
Improvement/Rectification was observed during
follow-up audit session on 26 June 2024. |
||
03/06/2024 |
Provide wheel washing
facilities for the vehicles exit at Portion 11. |
Item remarked as 240613-R05. Follow-up action is needed
to be review. |
|
13/06/2024 |
Item remarked as 240619-R04. Follow-up action is
needed to be review. |
||
19/06/2024 |
Item remarked as 240626-R03. Follow-up action is
needed to be review. |
||
26/06/2024 |
Follow-up
action is needed to be reported in the following month. |
||
13/06/2024 |
Review the capacity of
the wastewater treatment facilities at Portion 5. |
Item remarked as 240619-R05. Follow-up action is
needed to be review. |
|
19/06/2024 |
Item remarked as 240626-R04. Follow-up action is
needed to be review. |
||
26/06/2024 |
Follow-up
action is needed to be reported in the following month. |
||
Ecology |
29/05/2024 |
Dull green hoarding
should be erected along the site boundary as according to the submitted
location plan. |
Item
remarked as 240603-R01. Follow-up action is needed to be review. |
03/06/2024 |
Item
remarked as 240613-R01. Follow-up action is needed to be review. |
||
13/06/2024 |
Item
remarked as 240619-R01. Follow-up action is needed to be review. |
||
19/06/2024 |
Item
remarked as 240626-R01. Follow-up action is needed to be review. |
||
26/06/2024 |
Follow-up
action is needed to be reported in the following month. |
||
29/05/2024 |
Silt curtain at Portion
5 should be maintained properly. |
Item
remarked as 240603-R03. Follow-up action is needed to be review. |
|
03/06/2024 |
Item
remarked as 240613-R03. Follow-up action is needed to be review. |
||
13/06/2024 |
Improvement/Rectification was observed during
follow-up audit session on 19 June 2024. |
||
Contract No.: ND/2019/03 |
|||
Water Quality |
31/05/2024 |
Provide mitigation measure to avoid surface runoff to existing
drainage. |
Item remarked as 240607-F01. Follow-up action is needed to be review. |
07/06/2024 |
Improvement/Rectification was observed
during follow-up audit session on 14 June 2024. |
||
Waste/Chemical Management |
31/05/2024 |
Provide drip tray for chemical/fuel containers |
Item
remarked as 240607-F02. Follow-up action is needed to be review. |
07/06/2024 |
Improvement/Rectification was observed during
follow-up audit session on 14 June 2024. |
||
Contract No.: ND/2019/04 |
|||
Air Quality |
20/06/2024 |
Haul road near Bridge G and A2 should be water-sprayed regularly as
dust suppression. |
Improvement/Rectification was observed
during follow-up audit session on 27 June 2024. |
27/06/2024 |
Provide impervious sheeting for the dusty stockpile. |
Follow-up action is needed to be reported in the following month. |
|
Ecology |
30/05/2024 |
Silt curtain at Bridge F should be maintained properly. |
Improvement/Rectification was observed
during follow-up audit session on 6 June 2024. |
11/06/2024 |
Silt curtain at Bridge F should be maintained properly and regularly. |
Improvement/Rectification was observed
during follow-up audit session on 20 June 2024. |
|
20/06/2024 |
Silt curtain near A3-01 should be maintained properly and regularly. |
Improvement/Rectification was observed
during follow-up audit session on 27 June 2024. |
|
Water Quality |
30/05/2024 |
Water mitigation measures at A3-01 should be enhanced to prevent muddy
water discharge into Ng Tung River. |
Improvement/Rectification was observed
during follow-up audit session on 6 June 2024. |
30/05/2024 |
Sandbag bunds or concrete bunds or any other mitigation measures
should be implemented to avoid surface runoff exceeds the site boundary. |
Improvement/Rectification was observed
during follow-up audit session on 6 June 2024. |
|
Waste / Chemical Management |
11/06/2024 |
Chemical/fuel containers at Portion K should be placed inside a drip
tray to prevent leakage. |
Improvement/Rectification was observed
during follow-up audit session on 20 June 2024. |
27/06/2024 |
Keep site clean and tidy. |
Follow-up action is needed to be reported in the following month. |
|
Contract No.: ND/2019/05 |
|||
Air Quality |
13/06/2024 |
Stock of more than 20 bags of cement or dry PFA should be covered or
sheltered on top and 3 sides. |
Improvement/Rectification
was observed during follow-up audit session on 17 June 2024. |
Contract No.: ND/2019/06 |
|||
-- |
-- |
-- |
-- |
Contract No.: ND/2019/07 |
|||
-- |
-- |
-- |
-- |
Table 10.3 Summary
Table for the Outstanding item(s) in the reporting month
Contract No. |
Outstanding deficiencies
since last reporting month (May 2024) |
Deficiencies recorded in the reporting month (June 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 (July 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 |
/ |
2 |
1 |
/ |
/ |
/ |
/ |
4 |
2 |
/ |
/ |
1 |
1 |
/ |
/ |
/ |
/ |
2 |
ND/2019/02 |
6 |
/ |
/ |
22 |
/ |
/ |
/ |
6 |
/ |
28 |
2 |
/ |
/ |
5 |
/ |
/ |
/ |
1 |
/ |
6 |
ND/2019/03 |
2 |
/ |
/ |
1 |
1 |
/ |
/ |
/ |
/ |
2 |
2 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
ND/2019/04 |
3 |
2 |
/ |
/ |
2 |
/ |
/ |
2 |
/ |
6 |
7 |
1 |
/ |
/ |
1 |
/ |
/ |
/ |
/ |
2 |
ND/2019/05 |
/ |
1 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
1 |
1 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
ND/2019/06* |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
ND/2019/07 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
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 |
A Prinia flaviventris was recorded |
Wet agricultural land |