10.1
Site
audits were carried out by ET on weekly basis to monitor the timely implementation
of proper environmental management practices and mitigation measures on the
Contract site. The summaries of site
audits are presented in Table 10.1 and Appendix P.
Table 10.1 Summary
of Site Audit
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, 20 and 26 Apr
22 |
6, 14, 20 and 27 Apr
22 |
1, 8, 14, 19 and 29
Apr 22 |
7, 14, 21 and 25 Apr
22 |
4, 11, 21 and 25 Apr
22 |
7, 14, 21 and 28 Apr
22 |
1, 8, 14, 22 and 29
Apr 22 |
Joint Site Audit with representative of the Supervisor’s
Representative, the Contractor and IEC |
20 Apr 22 |
14 Apr
22 |
19 Apr
22 |
25 Apr 22 |
21 Apr 22 |
N/A |
22 Apr 22 |
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.
Table 10.2 Observations and Recommendations during
Site Audits
|
Date |
Observations and Recommendations |
Follow-up |
Contract No.: ND/2019/01 |
|||
-- |
-- |
-- |
-- |
Contract No.: ND/2019/02 |
|||
Water Quality |
30/03/2022 |
Remove the stagnant water inside U-channel. |
Improvement/Rectification was observed during
follow-up audit session on 6 April 2022. |
Air Quality |
06/04/2022 |
Dusty haul road shall be watered regularly. |
Improvement/Rectification was observed during
follow-up audit session on 14 April 2022. |
14/04/2022 |
Cement or dry pulverized fuel ash (PFA) shall be
covered on top and 3 sides. |
Improvement/Rectification was observed during
follow-up audit session on 20 April 2022. |
|
27/04/2022 |
Dusty haul road shall be watered regularly. |
Follow-up action is needed to be reported in the
following month. |
|
Waste / Chemical Management |
14/04/2022 |
Drip tray shall be provided for chemical storage. |
Improvement/Rectification was observed during
follow-up audit session on 20 April 2022. |
20/04/2022 |
Drip tray shall be provided for chemical storage. |
Improvement/Rectification was observed during
follow-up audit session on 27 April 2022. |
|
Contract No.: ND/2019/03 |
|||
Waste / Chemical Management |
01/04/2022 |
Drip tray should be
provided for chemical storage. |
Item was remarked as 220408- R01. |
08/04/2022 |
Drip tray should be
provided for chemical storage. |
Improvement/Rectification was observed during
follow-up audit session on 14 April 2022. |
|
19/04/2022 |
Oil spillage inside site
area at Yin Kong Road should be cleared immediately. |
Improvement/Rectification was observed during
follow-up audit session on 29 April 2022. |
|
Contract No.: ND/2019/04 |
|||
Water Quality |
31/03/2022 |
To enhance the drainage
system and the capacity of de-silting facility to prevent surface runoff. |
Item was remarked as 220407- R01. |
07/04/2022 |
To enhance the drainage
system and the capacity of de-silting facility to prevent surface runoff. |
Item was remarked as 220414-R02. |
|
07/04/2022 |
To enhance water
mitigation measure to prevent surface runoff to Ng Tung River. |
Item was remarked as 220414-O01. |
|
14/04/2022 |
Muddy runoff was observed
nearly overflow within the sandbag bund. The Contractor was reminded to
enhance the water quality mitigation measures (e.g. heighten the sand bag
bund, cover the exposed slopes nearby etc.) to minimize the muddy surface
runoff generation and discharging to the river. (Discharging Point 3) |
Item was remarked as 220421-O01. |
|
21/04/2022 |
Although the sandbag bund
has been heighten, the muddy runoff was still observed nearly overflow within
the bund. The Contractor was reminded to review and modify the implemented
mitigation measures to avoid the muddy surface runoff discharging to the
river. |
Item was remarked as 220425-O01. |
|
25/04/2022 |
To review and modify the
implemented mitigation measures to avoid the muddy surface runoff discharging
to the river. |
Follow-up action is needed to be reported in the
following month. |
|
14/04/2022 |
To enhance the drainage
system and increase the capacity of de-silting. (Portion H) |
Item was remarked as 220421-R02. |
|
21/04/2022 |
To enhance the drainage
system and increase the capacity of de-silting. (Portion H) |
Item was remarked as 220425-R02. |
|
25/04/2022 |
To enhance the drainage
system and increase the capacity of de-silting. (Portion H) |
Follow-up action is needed to be reported in the
following month. |
|
14/04/2022 |
To divert the surface
runoff for treatment at near Ma Wat River especially during rainy day.
(Portion H) |
Improvement/Rectification was observed during
follow-up audit session on 21 April 2022. |
|
Ecology |
21/04/2022 |
The silt curtain should be
properly surrounding the works at near bridge F and ensure it is intact. |
Item was remarked as 220425-R03. |
25/04/2022 |
The silt curtain should be
properly surrounding the works at near bridge F and ensure it is intact. |
Follow-up action is needed to be reported in the
following month. |
|
Noise |
21/04/2022 |
The noise barrier along
Siu Hang San Tsuen should be erected with no gap. |
Improvement/Rectification was observed during
follow-up audit session on 25 April 2022. |
Contract No.: ND/2019/05 |
|||
Air Quality |
28/03/2022 |
Site entrance should be
kept clean and free from dust. |
Improvement/Rectification was observed during
follow-up audit session on 4 April 2022. |
|
04/04/2022 |
Dusty stockpile should be
covered entirely by impervious sheeting. |
Improvement/Rectification was observed during
follow-up audit session on 11 April 2022. |
|
21/04/2022 |
Dusty stockpile shall be
covered properly by impervious sheeting. |
Improvement/Rectification was observed during
follow-up audit session on 25 April 2022. |
|
21/04/2022 |
Valid NRMM label shall be
displayed on regulated machine. |
Improvement/Rectification was observed during
follow-up audit session on 25 April 2022. |
|
25/04/2022 |
Dusty stockpile shall be
covered properly by impervious sheeting. |
Follow-up action is needed to be reported in the following
month. |
Water Quality |
11/04/2022 |
Enhance water mitigation
measure to prevent surface runoff. |
Improvement/Rectification was observed during
follow-up audit session on 21 April 2022. |
Contract No.: ND/2019/06 |
|||
-- |
-- |
-- |
-- |
Contract No.: ND/2019/07 |
|||
-- |
-- |
-- |
-- |
10.3
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 EP to mitigate
environmental impacts in the reporting month are presented in Table 10.3.
Table 10.3 Photographic Records and Implementation
Status of Measures
EP No. |
Condition |
Photographic Record |
Implementation Status |
EP-466/2013 |
2.9 |
To
minimise adverse impacts on habitats of ecological imprtance 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 |
[1]: Barrier
fences might be subjected to change according to phasing plan designed at
detailed design stage
10.4
Under
EP-467/2013/A (Condition 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. As the Works programme under above EPs
were still under preparation work and the
barrier fences erection was still progressing in the Reporting Month, 2m high
solid dull green site barrier fences will be checked once in place. The
Hoarding Plan of the above EPs refer to
EP submission.
10.5
According
to the EIA Report and the Updated EM&A Manual, the Air quality and Noise
mitigation measures detailed in the documents are recommended to be implemented
during the construction phase. Air quality and Noise mitigation measures
implemented by the contractors were closely monitored to prevent water
pollution, especially during dry season. An updated summary of the Environmental
Mitigation Implementation Schedule is provided in Appendix Q. Specific Air quality and Noise mitigation measures for
major construction works in the reporting month are presented in Table 10.4.
Table 10.4 Specific Air Quality and Noise Mitigation Measures for Major
Construction Works in the Reporting Month
Works Contracts |
Photographic Records |
|
ND/2019/01 |
Hard paved exposed
slope surface |
Dusty haul road
watered regularly |
ND/2019/02 |
Hard paved exposed
haul road |
Hard paved exposed slope surface |
ND/2019/03 |
Deployment of noise barriers
between construction site and NSRs |
Regulated machines
display with Non-road Mobile Machinery labels |
ND/2019/04 |
Haul road watered regularly |
Deployment of noise barriers between
construction site and NSRs |
ND/2019/05 |
Covering dusty
stockpile |
Access road watered regularly |
ND/2019/06 |
Dull green hoarding
erected around site |
Hard paved exposed haul road |
ND/2019/07 |
Covering exposed slope surface with tarpaulin |
Access road watered regularly |
10.6
Waste generated from
Contract No. ND/2019/01, ND/2019/02, ND/2019/03, ND/2019/04, ND/2019/05,
ND/2019/06 and ND/2019/07 include inert construction and demolition (C&D)
materials and non-inert C&D wastes in the Reporting Month.
10.7
The amount of
wastes generated by the construction works of the Contract
No. ND/2019/01, ND/2019/02, ND/2019/03, ND/2019/04, ND/2019/05, ND/2019/06 and
ND/2019/07 during the
reporting month are shown in Appendix R.
10.8
The
Contractors are advised to minimize 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.
10.9
From
the findings of 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.
10.10
LVNP is developed according to approved
Habitat Creation and Management Plan (HCMP) submitted under EP-468/2013/A. The
HCMP provides a framework and specifications for development and management of
the LVNP and guides the development to maintain and enhance the 37ha of
low-lying wetland habitats.
10.11
Regarding
to the design, the zoning of land use in the 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. The LVNP will
divide 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.
10.12
The
construction of the LVNP started in late 2019 and is expected to be completed
in 2023. During construction period, the progress of construction and wetland
enhancement works are under observation by different stakeholders including
AFCD and green groups. Close communication between AFCD and CEDD are conducted
to exchange views on conservation, restoration and management of habitats as
well as on the planning and design of the park. Also, advices from green
groups, Hong Kong Bird Watching Society (HKBWS) and The Conservancy Association
(CA), are taken on habitat management of Long Valley and potential effects on
habitat and wildlife of each individual work conducted in Long Valley. Regular
meeting are held monthly to share the progress of LVNP with different
stakeholders, including CEDD, AFCD, CA, HKBWS, Contractor, ET, IEC and farmers.
However, meeting in April was canceled due to pandemic outbreak.
10.13 Proposals on wetland creation and
restoration, dry agricultural land creation, pond creation, water treatment
wetland and design of irrigation channel are submitted by the Contractor to
achieve the objectives stated in HCMP and accepted by the Engineer with consent
from AFCD before implementation. The Contractor will consult with the
stakeholders for recommendations and suggestions on mitigation measures to minimise the environmental impacts arising from
construction works. The progress of works will 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 10.5 Photographic Records of Site Activities in LVNP
Agricultural practice are continued in
existing farmland to maintain habitats in Long Valley |
|||
|
|
Chinese
arrowhead pond |
|
Creation of wetland with designated habitat
for biodiversity conservation |
|||
Planting of paddy rice to provide
foraging ground for Yellow-breasted Bunting |
|||
Retention of washing bay for amphibians
breeding |
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
Calidris acuminata was recorded |
||
Wet agricultural land |
Provision of noise barrier for noisy
works in Long Valley |
||