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 |
6, 13, 20 and 29 Sep 22 |
7, 14, 21 and 28 Sep 22 |
2, 9, 16, 20 and 30 Sep 22 |
1, 8, 16, 22 and 27 Sep 22 |
5, 15, 19 and 26 Sep 22 |
1, 8, 16, 22 and 27 Sep 22 |
9, 15, 23 and 30 Sep 22 |
|
Joint Site Audit
with representative of the Supervisor’s Representative, the
Contractor and IEC |
29 Sep 22 |
21 Sep 22 |
20 Sep 22 |
16 Sep 22 |
15 Sep 22 |
N/A |
9 Sep 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 |
|||
|
Waste / Chemical Management |
20/09/2022 |
General refuse should be disposed of regularly and
properly. |
Improvement/Rectification was
observed during follow-up audit session on 29 September 2022. |
|
Contract No.: ND/2019/02 |
|||
|
Waste / Chemical Management |
21/09/2022 |
Drip trays should be provided for chemical
storages. |
Item Remarked as 220928-R01. Follow-up action is
needed to be review. |
|
28/09/2022 |
Drip trays should be provided for chemical containers. |
Follow-up action is needed to be reported in the
following month. |
|
|
Air Quality |
31/08/2022 |
Dusty material should be removed or covered entirely. |
Improvement/Rectification
was observed during follow-up audit session on 7 September 2022. |
|
Water Quality |
21/09/2022 |
To enhance and properly maintain existing water mitigation measures
at site boundaries and next to Sheung Yue River to
prevent muddy runoff from going out of site boundaries or into the river. |
Item Remarked as 220928-R02. Follow-up action is
needed to be review. |
|
28/09/2022 |
Follow-up action is needed to be reported in the
following month. |
||
|
Contract No.: ND/2019/03 |
|||
|
Air Quality |
26/08/2022 |
Dusty
debris were observed at the site exit of Yin Kong. Contractor was reminded to
clear the dusty debris immediately. |
Improvement/Rectification was
observed during follow-up audit session on 2 September 2022. |
|
02/09/2022 |
Improvement/Rectification was
observed during follow-up audit session on 9 September 2022. |
||
|
09/09/2022 |
Improvement/Rectification was
observed during follow-up audit session on 16 September 2022. |
||
|
20/09/2022 |
Item
Remarked as 220930-O01. Follow-up action is needed to be review. |
||
|
30/09/2022 |
Follow-up
action is needed to be reported in the following month. |
||
|
09/09/2022 |
NRMM labels
should be displayed properly on excavators. |
Item
Remarked as 220916-R01. Follow-up action is needed to be review. |
|
|
16/09/2022 |
Faded
NRMM labels should be replaced. |
Item
Remarked as 220920-R01. Follow-up action is needed to be review. |
|
|
20/09/2022 |
Improvement/Rectification was
observed during follow-up audit session on 30 September 2022. |
||
|
Water Quality |
26/08/2022 |
To
clear the wheel-washing bay regularly. |
Item
Remarked as 220902-R01. Follow-up action is needed to be review. |
|
02/09/2022 |
Item
Remarked as 220909-R01. Follow-up action is needed to be review. |
||
|
09/09/2022 |
Improvement/Rectification was
observed during follow-up audit session on 16 September 2022. |
||
|
Waste / Chemical Management |
09/09/2022 |
Drip
tray should be provided for chemical storage. |
Improvement/Rectification was
observed during follow-up audit session on 16 September 2022. |
|
30/09/2022 |
Oil
leakage was observed at the surrounding of the generator. Contractor was
reminded to clear the leakage immediately. |
Follow-up
action is needed to be reported in the following month. |
|
|
Contract No.: ND/2019/04 |
|||
|
Water Quality |
24/08/2022 |
Covering of stockpile is required to minimize the
mudding runoff during rainstorm. |
Item Remarked as 220901-R01. Follow-up action is
needed to be review. |
|
01/09/2022 |
Item Remarked as 220908-R01. Follow-up action is
needed to be review. |
||
|
08/09/2022 |
Item Remarked as 220916-R01. Follow-up action is
needed to be review. |
||
|
16/09/2022 |
Item Remarked as 220922-R01. Follow-up action is
needed to be review. |
||
|
22/09/2022 |
Item Remarked as 220927-R01. Follow-up action is
needed to be review. |
||
|
27/09/2022 |
Follow-up action is needed to be reported in the
following month. |
||
|
01/09/2022 |
Muddy surface runoff and not efficient measure
were observed. Efficient measure, e.g. the use of geotextile, should be provided. |
Improvement/Rectification
was observed during follow-up audit session on 8 September 2022. |
|
|
Ecology |
01/09/2022 |
Not well maintained of silt curtains were
observed. Contractor was reminded to maintain well and properly. |
Improvement/Rectification
was observed during follow-up audit session on 8 September 2022. |
|
Air Quality |
16/09/2022 |
Exposed worksite should be watered regularly. |
Improvement/Rectification
was observed during follow-up audit session on 22 September 2022. |
|
Waste / Chemical Management |
22/09/2022 |
To provide drip tray for chemical storage, and
maintain their conditions to ensure proper functioning. |
Improvement/Rectification
was observed during follow-up audit session on 27 September 2022. |
|
Contract No.: ND/2019/05 |
|||
|
Water Quality |
29/08/2022 |
Enhance the mitigation measure to avoid muddy
water discharging to public drainage and Ma Wat River. (Portion 9) |
Item Remarked as 220905-R01. Follow-up action is
needed to be review. |
|
05/09/2022 |
Improvement/Rectification
was observed during follow-up audit session on 15 September 2022. |
||
|
05/09/2022 |
Maintain the mitigation measure to avoid muddy
water discharging to Ma Wat River. (Portion 1) |
Improvement/Rectification
was observed during follow-up audit session on 15 September 2022. |
|
|
Air Quality |
19/09/2022 |
Dusty Stockpile should be covered by impervious
sheeting properly. (Kwu Tung) |
Improvement/Rectification
was observed during follow-up audit session on 26 September 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/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. A regular
meeting was held
monthly (on
23 September 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 |
A Himantopus himantopus was recorded |
|
|
Wet agricultural land |
Provision of noise barrier for noisy
works in Long Valley |
|
