Attachment 3 - Arborist Report.pdf

T REE P ROTECTION S PECIFICATIONS
For the proposed retention of the above trees onsite, the following guidelines are
recommended to be implemented to minimise the impact of the Project works. The protection
recommendations offered will be guided by AS4790 – 2025 Protection of trees on
development sites, industry best practice and the supervising presence of a suitably qualified
and experienced Arborist with a high level of experience as an onsite Project Arborist.

The successful retention of the trees will be bettered by the education and cooperation of all
parties of the construction team during the build, and the presence of the Project Arborist on
site to assist and advise during the excavation works carried out within proximity of the trees.

ALL workers on the site are to be made aware of the Tree Protection Guidelines and any site-
specific measures by the main contractor before commencing works.

Due to the nature of the site, standard TPZ fencing is not achievable. The TPF can be erected
in a non-standard alignment that may incorporate the public site fencing. These measures will
be established between the project and the Project Arborist. Additional caution will be required
as the works will be within the TPZ of the trees.

Take all necessary precautions, including but not limited to the following:

x   Appropriate signage, i.e., ‘Tree Protection Zone’ and ‘No Go Zone’, must be erected at
    the boundary of the TPZ to prevent vehicles from entering and prevent stockpiling from
    occurring near retained trees/vegetation.
x   No damage is to be caused to tree trunks and bark (i.e., do not attach guides or stays to
    trees/vegetation) – trunk protection may be used if appropriate.
x   No excavation works/open trenching to encroach within the TPZ of retained trees unless
    under the direct supervision of the Project Arborist.
x   Approved excavation works should be undertaken with the machines sat on protected or
    solid ground away from the tree, and work performed perpendicular to the tree.
x   Where necessary to cut roots, this shall be undertaken by the Project Arborist.
x   No storage or otherwise placing of spoil, bulk or potentially harmful materials (i.e.,
    construction refuse, concrete waste, herbicides, diesel, etc.) under or within 1m of TPZs.
x   Avoid ground compaction under trees. If compaction occurs (i.e., from site access or the
    location of a construction plant or vehicle parking), notify the Project Arborist and obtain
    their instructions.
x   Ground Protection: Where construction encroaches into the TPZ of trees to be retained,
    it shall be necessary to install protection to avoid compaction of the ground surface, lateral
    and absorbing roots.
x   Any damage to trees during work is to be rectified according to AS 4373/96 Pruning of
    Amenity Trees and best horticultural practices. The Project Arborist is to guide the works.
x   Where deemed beneficial, mulch the entire ground surface within the TPZ with Forest
    Blend Organic Mulch or site mulch to a depth of 100mm and install a temporary irrigation
    system or manually water to ensure that soil moisture levels are adequately maintained.




26_04_14_AR_CW_NoosaReef                                                                Page 5 of 6


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TREE PROTECTION SPECIFICATIONS

For the proposed retention of the above trees onsite, the following guidelines are
recommended to be implemented to minimise the impact of the Project works. The protection
recommendations offered will be guided by AS4790 — 2025 Protection of trees on
development sites, industry best practice and the supervising presence of a suitably qualified
and experienced Arborist with a high level of experience as an onsite Project Arborist.

The successful retention of the trees will be bettered by the education and cooperation of all
parties of the construction team during the build, and the presence of the Project Arborist on
site to assist and advise during the excavation works carried out within proximity of the trees.

ALL workers on the site are to be made aware of the Tree Protection Guidelines and any site-
specific measures by the main contractor before commencing works.

Due to the nature of the site, standard TPZ fencing is not achievable. The TPF can be erected
in anon-standard alignment that may incorporate the public site fencing. These measures will
be established between the project and the Project Arborist. Additional caution will be required
as the works will be within the TPZ of the trees.

Take all necessary precautions, including but not limited to the following:

e Appropriate signage, i.e., ‘Tree Protection Zone’ and ‘No Go Zone’, must be erected at
the boundary of the TPZ to prevent vehicles from entering and prevent stockpiling from
occurring near retained trees/vegetation.

e No damage is to be caused to tree trunks and bark (i.e., do not attach guides or stays to
trees/vegetation) — trunk protection may be used if appropriate.

e No excavation works/open trenching to encroach within the TPZ of retained trees unless
under the direct supervision of the Project Arborist.

e Approved excavation works should be undertaken with the machines sat on protected or
solid ground away from the tree, and work performed perpendicular to the tree.

e Where necessary to cut roots, this shall be undertaken by the Project Arborist.

e No storage or otherwise placing of spoil, bulk or potentially harmful materials (i.e.,
construction refuse, concrete waste, herbicides, diesel, etc.) under or within 1m of TPZs.

e Avoid ground compaction under trees. If compaction occurs (i.e., from site access or the
location of a construction plant or vehicle parking), notify the Project Arborist and obtain
their instructions.

e Ground Protection: Where construction encroaches into the TPZ of trees to be retained,
it shall be necessary to install protection to avoid compaction of the ground surface, lateral
and absorbing roots.

e Any damage to trees during work is to be rectified according to AS 4373/96 Pruning of
Amenity Trees and best horticultural practices. The Project Arborist is to guide the works.

e Where deemed beneficial, mulch the entire ground surface within the TPZ with Forest
Blend Organic Mulch or site mulch to a depth of 100mm and install a temporary irrigation
system or manually water to ensure that soil moisture levels are adequately maintained.

26_04_14_AR_CW_NoosaReef Page 5 of 6