7.1 The EIA has recommended landscape and visual mitigation measures to be undertaken during construction and operation phases of the Project. This Section defines the EM&A requirements to ensure the proposed landscape and visual impact mitigation measures are effectively implemented.
7.2 A register landscape architect (RLA) (as a member of the ET) shall be responsible for conducting the baseline review and monitoring the implementation of landscape and visual mitigation measures during construction phase in accordance with the EIA Report.
7.3 Baseline changes with respect to the landscape and visual environmental should be carried out in reference to the recorded baseline conditions of the site as described in Section 7 of the EIA. The monitoring should in particular record changes of each landscape resource, landscape character area and the view conditions of each visually sensitive receiver. Parameters used to describe changes in each of the above should be the same as in Section 7 of the EIA.
7.4 The baseline monitoring should be conducted as a one-off site survey prior to commencement of any construction works in the project boundary.
Construction Phase
Baseline Review
7.5 A baseline review shall be undertaken at the commencement of the construction contracts. The purpose of the review is:
·
to check the status of the landscape resources within, and
immediately adjacent to, the construction sites and works areas;
·
to determine whether any change has occurred to the status
of the landscape resources since the EIA;
Design
of Landscape and Visual Mitigation Measures
7.6 The landscape and visual mitigation measures shall be incorporated to ensure the mitigation effect and achieve the intended aims as described in Tables 7.2 and 7.3. Any changes to the mitigation measures that may be recommended as a result of the Baseline Review or ongoing Monitoring of the Design, Construction and Establishment Works shall be taken into account.
Landscape
and Visual Monitoring
7.7
All landscape and visual monitoring should
carry out on site audit with register landscape architect (RLA) for
supervision. The design, implementation and
maintenance of landscape and visual mitigation measures shall be checked
monthly to ensure that they are fully required. Any potential conflicts between
the proposed landscape measures and any other project works or operational
requirements shall also be recorded for the Contractor to resolve in early
stage, without compromising the intention of the mitigation measures. All
sensitive landscape resources is shown in Figure
Operational Phase
Landscape
and Visual Monitoring
7.8
All landscape and visual mitigation measures
shall be monitored monthly on site during the first year of the Operational
Phase to ensure that the effectiveness of the mitigations. All sensitive
landscape resources is shown in Figure
7.9
Should
non-compliance of the landscape and visual impacts occur, actions in accordance
with the action plan stated in Table 7.1
shall be carried out.
Table 7.1 Event and Action Plan for Landscape and Visual Impact - Construction Phase
|
Action Level |
Environmental Team
Leader (ETL) |
Independent
Environmental Checker (IEC) |
Engineer’s Representative
(ER) |
Contractor |
|
Non-conformity on one occasion |
1. Identify source 2. Inform the IEC and the ER 3. Discuss remedial actions with the IEC, the ER and the Contractor 4. Monitor remedial action until rectification has been completed |
1. Check report 2. Check the Contractor’s working method 3. Discuss with the ER and the Contractor on possible remedial measures 4. Advise the ER on effectiveness of proposed remedial measures |
1. Notify the Contractor 2. Ensure remedial measures are properly implemented |
1. Amend working methods 2. Rectify damage and undertake remedial measures or any necessary
replacement |
|
Repeated Non-conformity |
1. Identify source 2. Inform the IEC and the ER 3. Increase monitoring (site audit) frequency 4. Discuss remedial actions with the IEC, the ER and the Contractor 5. Monitor remedial actions until rectification has been completed 6. If exceedance stops, cease additional monitoring (site audit) |
1. Check report 2. Check the Contractor’s working method 3. Discuss with the ER and the Contractor on possible remedial measures 4. Advise the ER on effectiveness of proposed remedial measures 5. Supervise implementation of remedial measures |
1. Notify the Contractor 2. Ensure remedial measures are properly implemented |
1. Amend working methods 2. Rectify damage and undertake remedial measures or any necessary
replacement |
7.10
Landscape and visual mitigation measures in the construction and operation, together with an indication
of Funding, Implementation and Maintenance Agencies are listed in Tables 7.2 and Table 7.3. Approval-in-principle to the implementation, management and maintenance
of the proposed mitigation measures sought from the appropriate authorities in accordance
with the ETWB TCW
No. 3/2006 are
also indicated in Table 7.2 and Table 7.3..
Table 7.2 Proposed Landscape Mitigation Measures for Construction Phase
|
ID No. |
Nature / Type |
Visual Mitigation
Measure |
Funding /
Implementation |
Management/ Maintenance |
|
CM1 |
Design / Construction Planning |
No-intrusion Zone To maximize protection to existing trees, woodland, plantation areas
and ground vegetation, construction contracts may designate “No-intrusion Zone”
to various areas within the site boundary with rigid and durable fencing for
each individual no-intrusion zone. The contractor should closely monitor and restrict the site working
staff not to enter the “no-intrusion zone”, even for non-direct construction
activities and storage of equipment.
|
CEDD |
CEDD |
|
CM2 |
Design / Construction Planning |
Hoarding Hoarding or boundary fencing for construction shall be considered. It
should be sensitively designed, subtle,
camouflaged and more ‘permeable’ so that they fit into the existing
environment when looking from outside. |
CEDD |
CEDD |
|
CM3 |
Site Practice |
Minimize disturbance of construction workers To ensure minimum disturbance to existing village, rustic dwellings and
workshops users, construction works may only enter these areas with their
helmets and safely vests properly stored or carried in non-transparent bags.
They shall also properly and cleanly dress. The construction contract should require the main contractor to issue
guideline to the construction works to minimize disturbance to existing
village, rustic dwellings and workshops. |
CEDD |
CEDD |
|
CM4 |
Site Practice |
Dust and Erosion Control for Exposed Soil Excavation works and demolition of existing squatters / workshops which
will be highly visible form surrounding areas should be well planned and with
precautions to suppress dust. Exposed soil shall be covered or ‘camouflaged’ and watered often. Areas
that are expected to be left with bare soil for a long period of time after
excavation shall be properly covered with suitable protective fabric. Silt
and erosion shall be controlled by ground barriers around the slope cutting
area. |
CEDD |
CEDD |
|
CM6 |
Site Practice |
Construction Light All security floodlights for construction sites shall be equipped with
adjustable shield, frosted diffusers and reflective covers, and be carefully
controlled to minimize light pollution and night-time glare to nearby
village. The Contractor shall consider other security measures which shall
minimize the visual impacts. |
CEDD |
CEDD |
|
CM7 |
Design / Construction |
Re-use of Existing Soil Existing topsoil shall be re-used where possible for new planting areas within the project. The construction program shall consider using the soil removed from
one phase for backfilling another. Suitable storage ground, gathering ground
and mixing ground may be set up on-site as necessary. |
CEDD |
CEDD |
|
CM8 |
Site Supervisions/ Establishment Period |
Establishment Period 12 month establishment
period for the soft landscape works will be allowed in the main contract.
Most construction contracts in This period also serves as a kind of warranty / guarantee on the
quality of the plants supplied and installed by the Contractor. |
CEDD |
CEDD |
Table 7.3 Proposed Landscape Mitigation Measures for Operation Phase
|
ID No. |
Nature / Type |
Landscape Mitigation
Measure |
Funding /
Implementation |
Management/ Maintenance |
|
OM1 |
Design / Operation |
Re-instatement of excavated Area All excavated area and disturbed area for utilities
diversion, temporary road diversion, and pipeline woks will be reinstated to
former conditions, subject to applicable Government Standards. |
DSD |
DSD |
|
OM2 |
Design / Operation |
Architectural Treatment for the proposed structures Compatible design, construction materials and surface finishes of the
proposed Sewage Pumping Station should be harmony with proposed GIC
development within Site 4A. (open space and 6 nos. schools development) so as
to achieve visual uniformity. Finishing materials shall have due consideration to form, basic color,
color/tone variation, micro- and macro-texture, and reflectivity/light
absorbance to avoid glare. |
CEDD (Design)
/ DSD (Operation) |
DSD |
|
OM3 |
Design / Operation |
Greening for the proposed Sewage Pumping Station Permeable boundary wall with tree and shrub planting (with 1.2m topsoil depth planting strip) shall be used. The tree planting (21 nos. of trees) should be in heavy standard sized (the stem diameter is exceeding 75mm but not exceeding 150mm measure at a height of 1m from the root collar) to provide early screening effect. Trees with normal standard size (the stem diameter is exceeding 45mm but not exceeding 75mm measure at a height of 1m from the root collar) (14 nos. of trees) and shrub are proposed for buffer planting. The trees would be one or more of following species: Bauhinia blakeana, Bischofia trifoliate, Cassia surattensis, Callistemon rigidus and Magnolia grandiflora. The shrubs would be one or more of following species: Codiaeum variegatum, Hibiscus rosa-sinensis, Jasminum sambac, Osmanthus fragrans and Rhododendron pulchrum. One or more of the following climbers: Bauhinia glauca, Bougainvillea spectabilis, Lonicera japonica, Parthenocissus himalayana, Pyrostegia venusta and Wisteria sinensis, flowers racks or other vertical greening should be installed to soften the monolithic effects of boundary wall. Green roof with shrub and groundcovers is proposed. |
CEDD (Design)
/ DSD
(Operation) |
DSD |