10
ENVIRONMENTAL SITE
INSPECTION
Site Audits
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, 23 and 30 Aug 22 |
3, 10, 19, 24 and 31 Aug 22 |
5, 12, 16 and 26 Aug 22 |
4, 11, 16 and 24 Aug 22 |
1, 8, 18, 22 and 29 Aug 22 |
4, 11, 16 and 24 Aug 22 |
5, 12, 19 26 and 31 Aug 22 |
|
Joint Site Audit
with representative of the Supervisor’s Representative, the
Contractor and IEC |
17 Aug 22 |
19 Aug 22 |
16 Aug 22 |
16 Aug 22 |
18 Aug 22 |
N/A |
12 Aug 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.
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. ET would record the environmental
deficiency, if any, for NDTWM (EP-475/2013/A) during the 1-year defect
correction period under Contract ND/2019/04 site inspection and would
email weekly those inspection records to the Project Team of Contract
ND/2019/06 for information.
Table 10.2
Observations and Recommendations during Site Audits
|
Parameters |
Date |
Observations and Recommendations |
Follow-up |
|
Contract No.: ND/2019/01 |
|||
|
- |
- |
- |
- |
|
Contract No.: ND/2019/02 |
|||
|
Landscape and Visual |
27/07/2022 |
To clarify the nearly fallen tree status. |
Item Remarked as
220803-R01. Follow-up action is needed to be review. |
|
03/08/2022 |
Item Remarked as
220810-R01. Follow-up action is needed to be review. |
||
|
10/08/2022 |
To properly manage and maintain tree protection
zone for retained / transplanted trees. |
Improvement/Rectification was observed during
follow-up audit session on 19 August 2022. |
|
|
Air Quality |
31/08/2022 |
Dusty material should be removed or covered
entirely. |
Follow-up action is needed
to be reported in the following month. |
|
Waste / Chemical Management |
10/08/2022 |
To provide drip tray for chemical storage. |
Item Remarked as
220819-R01. Follow-up action is needed to be review. |
|
19/08/2022 |
Drip tray should be provided for chemical / fuel
containers. |
Improvement/Rectification was observed during
follow-up audit session on 24 August 2022. |
|
|
19/08/2022 |
Unknown oil should be avoided. |
Improvement/Rectification was observed during
follow-up audit session on 24 August 2022. |
|
|
Water Quality |
27/07/2022 |
To enhance mitigation measures to prevent surface
runoff into the Sheung Yue River near 1.43.7. |
Item Remarked as
220803-R02. Follow-up action is needed to be review. |
|
03/08/2022 |
Item Remarked as
220810-R03. Follow-up action is needed to be review. |
||
|
10/08/2022 |
To maintain water mitigation measures next to the
water-filled barriers (geotextile & sandbags) at good functional
condition. |
Improvement/Rectification was observed during
follow-up audit session on 19 August 2022. |
|
|
19/08/2022 |
Enhance the mitigation measure to prevent surface
runoff discharge to Sheung Yue River. |
Item Remarked as
220824-R01. Follow-up action is needed to be review. |
|
|
24/08/2022 |
To enhance mitigation measures to prevent surface
runoff into the Sheung Yue River. |
Improvement/Rectification was observed during
follow-up audit session on 31 August 2022. |
|
|
Contract No.: ND/2019/03 |
|||
|
Air Quality |
29/07/2022 |
Dusty debris were observed at Yin Kong Road. Contractor was reminded
to clear the dusty debris immediately. |
Improvement/Rectification
was observed during follow-up audit session on 5 August 2022. |
|
26/08/2022 |
Dusty debris were observed at the site exit of Yin Kong. Contractor
was reminded to clear the dusty debris immediately. |
Follow-up action is needed to be reported in the following month. |
|
|
Water Quality |
26/08/2022 |
To clear the wheel-washing bay regularly. |
Follow-up action is needed to be reported in the following month. |
|
Contract No.: ND/2019/04 |
|||
|
Water Quality |
04/08/2022 |
Covering of stockpile is
required to minimize the mudding runoff during rainstorm. |
Item Remarked as
220811-R01. Follow-up action is needed to be review. |
|
11/08/2022 |
Item Remarked as
220816-R01. Follow-up action is needed to be review. |
||
|
16/08/2022 |
Item Remarked as
220824-R01. Follow-up action is needed to be review. |
||
|
24/08/2022 |
Follow-up action is needed
to be reported in the following month. |
||
|
16/08/2022 |
To enhance mitigation
measure to prevent muddy runoff during wet season. |
Improvement/Rectification was observed during
follow-up audit session on 24 August 2022. |
|
|
Contract No.: ND/2019/05 |
|||
|
Waste / Chemical Management |
01/08/2022 |
Soil was observed at the
slope surface (Portion 2) which will direct discharge to Ma Wat River.
Contractor was reminded to clear the soil. |
Improvement/Rectification was observed during
follow-up audit session on 8 August 2022. |
|
18/08/2022 |
Should enhance mitigation
measures to prevent oil leakage. |
Improvement/Rectification was observed during
follow-up audit session on 22 August 2022. |
|
|
Water Quality |
08/08/2022 |
Sand bag barriers were not
surrounding carefully which lead the leakage of muddy water. Contractor was
reminded to clear the muddy water, place the sand bags properly and
effectively. |
Improvement/Rectification was observed during
follow-up audit session on 18 August 2022. |
|
22/08/2022 |
Enhance the mitigation
measure to avoid muddy water discharging to public drainage and Ma Wat River.
(Portion 2 and 9) |
Improvement/Rectification was observed during
follow-up audit session on 29 August 2022. |
|
|
29/08/2022 |
Enhance the mitigation
measure to avoid muddy water discharging to public drainage and Ma Wat River.
(Portion 9) |
Follow-up action is needed
to be reported in the following month. |
|
|
Air Quality |
22/08/2022 |
Provide impervious
sheeting for the stockpile of dusty materials. |
Improvement/Rectification was observed during
follow-up audit session on 29 August 2022. |
|
Contract No.: ND/2019/06 |
|||
|
-- |
-- |
-- |
-- |
|
Contract No.: ND/2019/07 |
|||
|
-- |
-- |
-- |
-- |
Implementation Status of Environmental Mitigation Measures
10.4
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 10.3.
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 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
Implementation Status of Water Quality Mitigation Measures
10.5
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 10.4 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 |
Regular clearance of
water for wheel washing facility |
|
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 |
Solid and Liquid Waste Management Status
10.6
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.
10.7
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.
10.8
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.
Ecological Mitigation Measures – Creation of Long Valley Nature Park
(LVNP)
10.9
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.
10.10
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.
10.11
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.
10.12
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. A regular
meeting was held
monthly (on
26 August 2022 in the reporting month) to share the progress of LVNP with
different stakeholders, including CEDD, AFCD, CA, HKBWS, Contractor, ET, IEC
and farmers.
10.13
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 10.5 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
Ardeola bacchus was recorded |
|
|
Wet agricultural land |
Provision of noise barrier for noisy
works in Long Valley |
|
