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 |
7, 16, 21 and 28 Feb 23 |
1, 8, 15 and 20 Feb 23 |
3, 10, 17 and 21 Feb 23 |
2, 9, 17 and 24 Feb 23 |
6, 16, 21 and 27 Feb 23 |
2, 9, 17 and 24 Feb 23 |
3, 10, 17 and 24 Feb 23 |
|
Joint Site Audit with representative of the Supervisor’s Representative, the
Contractor and IEC |
16 Feb 23 |
20 Feb 23 |
21 Feb 23 |
24 Feb 23 |
16 Feb 23 |
N/A |
17 Feb 23 |
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 |
|||
|
Water Quality |
26/01/2023 |
Broken silt-curtain should be replaced. |
Improvement/Rectification was observed during
follow-up audit session on 1 February2023. |
|
20/02/2023 |
Drainage should be cleared and maintained
properly. |
Follow-up action is needed
to be reported in the following month. |
|
|
Landscape and Visual |
26/01/2023 |
To remove construction material leaning onto
retained trees and set up tree protection zone. |
Item remarked as
230201-R01. Follow-up action is needed to be review. |
|
01/02/2023 |
Item remarked as
230208-R01. Follow-up action is needed to be review. |
||
|
08/02/2023 |
Improvement/Rectification was observed during
follow-up audit session on 15 February2023. |
||
|
20/02/2023 |
Tree protection zone should be enhanced. |
Follow-up action is needed
to be reported in the following month. |
|
|
Contract No.: ND/2019/03 |
|||
|
Air Quality |
27/01/2023 |
Dusty debris were observed at the site exit of Yin Kong. Contractor
was reminded to clear the dusty debris immediately, and enhance water and
dust mitigation measures around the boundary of Yin Kong Road works area. |
Item remarked as 230203-O01. Follow-up action is needed to be review. |
|
03/02/2023 |
Improvement/Rectification
was observed during follow-up audit session on 10 February2023. |
||
|
Water Quality |
27/01/2023 |
Dusty debris were observed at the site exit of Yin Kong. Contractor
was reminded to clear the dusty debris immediately, and enhance water and
dust mitigation measures around the boundary of Yin Kong Road works area. |
Item remarked as 230203-O01. Follow-up action is needed to be review. |
|
03/02/2023 |
Improvement/Rectification
was observed during follow-up audit session on 10 February2023. |
||
|
Waste / Chemical Management |
27/01/2023 |
Provide drip tray for chemical/fuel containers. |
Item remarked as 230203-R01. Follow-up action is needed to be review. |
|
03/02/2023 |
Item remarked as 230210-R01. Follow-up action is needed to be review. |
||
|
10/02/2023 |
Item remarked as 230217-R01. Follow-up action is needed to be review. |
||
|
17/02/2023 |
Improvement/Rectification
was observed during follow-up audit session on 21 February2023. |
||
|
Contract No.: ND/2019/04 |
|||
|
Air Quality |
17/02/2023 |
Stockpile should be
covered or sprayed by water. |
Improvement/Rectification was observed during
follow-up audit session on 24 February2023. |
|
24/02/2023 |
Provide impervious
sheeting or water spraying for dusty stockpile in whole sale market. |
Follow-up action is needed
to be reported in the following month. |
|
|
Water Quality |
26/01/2023 |
Covering of stockpile is
required to minimize the muddy runoff during rainstorm. |
Item remarked as
230202-R01. Follow-up action is needed to be review. |
|
02/02/2023 |
Item remarked as
230209-R01. Follow-up action is needed to be review. |
||
|
09/02/2023 |
Item remarked as
230217-R01. Follow-up action is needed to be review. |
||
|
17/02/2023 |
Item remarked as
230224-R01. Follow-up action is needed to be review. |
||
|
24/02/2023 |
Follow-up action is needed
to be reported in the following month. |
||
|
09/02/2023 |
Discharge of muddy water
was observed. Contractor was reminded to enhance the water mitigation
measure. |
Improvement/Rectification was observed during
follow-up audit session on 24 February2023. |
|
|
24/02/2023 |
Provide barrier (e.g.,
sandbag) for G.I. operation. |
Follow-up action is needed
to be reported in the following month. |
|
|
Waste/Chemical Management |
26/01/2023 |
Drip tray should be
provided for chemical storage. |
Item remarked as
230202-R02. Follow-up action is needed to be review. |
|
02/02/2023 |
Item remarked as
230209-R02. Follow-up action is needed to be review. |
||
|
09/02/2023 |
Item remarked as
230217-R02. Follow-up action is needed to be review. |
||
|
17/02/2023 |
Item remarked as
230224-R01. Follow-up action is needed to be review. |
||
|
24/02/2023 |
Follow-up action is needed
to be reported in the following month. |
||
|
Ecology |
09/02/2023 |
2m high solid barrier for
the Siu Hang San Tsun should be maintain regularly. |
Improvement/Rectification was observed during
follow-up audit session on 17 February2023. |
|
Contract No.: ND/2019/05 |
|||
|
Air Quality |
21/02/2023 |
Provide impervious sheeting to cover the dusty stockpile. |
Improvement/Rectification
was observed during follow-up audit session on 27 February2023. |
|
27/02/2023 |
Provide impervious sheeting to cover the dusty stockpile in JCR. |
Follow-up action is needed to be reported in the
following month. |
|
|
Contract No.: ND/2019/06 |
|||
|
-- |
-- |
-- |
-- |
|
Contract No.: ND/2019/07 |
|||
|
Air Quality |
17/02/2023 |
Stockpile of dusty material should be covered by
impervious sheeting. |
Improvement/Rectification
was observed during follow-up audit session on 24 February2023. |
|
Construction Noise Impact |
03/02/2023 |
Compressor should be operated with door closed. |
Improvement/Rectification
was observed during follow-up audit session on 10 February2023. |
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/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
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. 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.
10.13 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 Elanus
caeruleus was recorded |
|
|
Wet agricultural land |
Provision of noise barrier for noisy
works in Long Valley |
|
