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response to excavation code
Professional Certification Group Pty Ltd
Unit 15, 8 Navigator Place
Hendra QLD 4011
Phone: 07 3707 6521
A.B.N: 82 145 435 687
24 Nov 2021
Noosa Council
PO Box 141
TEWANTIN QLD 4565
Dear Sir / Madam,
Referral of Application for Building Work
36 Oriole Ave PEREGIAN BEACH (Lot 672 CP-P 93128)
New Construction of Retaining Wall
Operational works application - filling and excavation
Please find attached operational works application for filling and excavation under the Noosa plan.
The site is located within the low density residential zone, and under table 5.8.3 of the Noosa plan the application is
required as the extent of excavation exceeds 10m3 and therefore is assessable under the Earthworks Code.
The background of this site, is that the owner has undertaken earthworks prior to approval being obtained and after
complaints of the neighbours it was brought to our attention. Once revised plans and engineering were received
determination was made that an operational works application was triggered.
Response to the earthworks code is as followed:
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Page 2
Table 9.4.2.3 Criteria for assessment Effects of works Table 9.4.2.3 Criteria for assessment (part)
Performance outcomes Acceptable outcomes Response
Drainage PO1 AO1 Complies - retaining wall to have
Finished surface levels ensure land is Filled or excavated areas have a min compliant drainage measures which will
free draining. imum gradient of 0.5% discharge to a lawful point of discharge
and drain to Council’s stormwater in
frastructure where
available, or where stormwater infra
structure is not available,
toward the street.
Hydraulics PO2 No acceptable outcome provided -
Change to the levels on site do not h
ave an adverse impact on
the flooding and drainage characteri
stics offsite.
Geotechnical considerations PO3 AO3.1 Complies - Filling works are in
Earthworks do not result in geotech Filling works are undertaken in accor accordance with the council planning
nical instability onsite or dance with Council’s scheme policy as the retaining walls
to nearby premises Planning Scheme Policy PSP6 Engine have been designed by an RPEQ
ering design standards - engineer using the appropriate
roads, drainage and earthworks. Australian Standards.
AO3.2
Where the filling is for residential, c
ommercial or industrial
purposes the works comply with Aus
tralian Standard
Guidelines for earthworks on comm
ercial & residential
Local amenity PO4 AO4.1 Complies - Control measures are to be
Undertaking earthworks does not ad The following control measures are in place by the contractor, ensuring that
implemented— measures are put in place to minimise
versely impact on the
amenity of the local area by way of the amount of dust that is produced to
dust, noise or visual amenity. adjoining allotments, including spraying
1. regular water spraying of exposed
areas to suppress dust; of exposed areas and sediment barriers.
2. provision of dust stabilised or
sealed internal roads; Complies - Contractors are required to
3. protective covering of exposed comply with industry/council standards in
areas that are left for more than 2 regard to working hours an days.
weeks; and
4. unless a development permit
provides otherwise, disturbed
areas are revegetated using
species identified in Council's
Planning Scheme Policy PSP2
Landscaping.
AO4.2
Earthworks are undertaken only during
the hours of 7:00am to 6:00pm, Monday
to Friday and 7:00am to 3:00pm on
Saturday. No work is undertaken on
Sunday or public holidays.
Page 3
Vegetative waste AO5.1 Complies - site is clear of vegetation
PO5 Cleared vegetation is transported
Vegetation cleared from a off-site for disposal in an approved green
development site is disposed of in an waste disposal facility.
environmentally responsible manner.
AO5.2
Cleared vegetation is mulched
on-site and reused for landscaping of the
finished development.
AO5.3
Cleared vegetation is disposed of for the
purpose of firewood.
AO5.4
Disposal of vegetative waste by burning
off is avoided.
Managing contamination risk AO6.1 Complies - earthworks in question is in
PO6 Fill material is solid clean earth, free of cut, not fill.
Materials used as fill are suitable for putrescible or refuse
development and future use of the land material, vegetation, acid sulfate
and filling or excavation works do not soils, building or construction material
result in the contamination of land. or other material or contaminants.
AO6.2
The site is not on the contaminated land
register.
Haulage activity and amenity No acceptable outcome provided -
PO7
Haulage of material to and from
a site ensures—
1. minimal disturbance to
neighbouring properties and
properties along the haulage
route; and
2. Council’s road infrastructure
including pavements is not
adversely affected.
Extent of earthworks AO8 Complies - all works are within the
PO8 All earthworks, including cut and fill property as shown on the attached
The layout of the development batters, retaining walls and the like are plans. The retaining walls and drainage
provides adequate, clearly defined
and easily accessible—
contained within the subject site. measures are located min 500mm within
the subject allotment
1. on-site vehicle parking and
manoeuvring areas; and
2. loading and manoeuvring areas
for delivery and service vehicles.
Sloping sites AO9 Non compliant - the extent of cut
PO9 Cut or fill is less than 1.5 metres in depth exceeds 1.5m (approx 1.6m proposed).
On sloping sites development follows relative to the natural ground level. This extent of earthworks is necessary
the natural landform wherever practical for this particular case as the work is
and excavation or filling is minimal. needed to maintain a complaint platform
and not undermine the existing
swimming pool towards the rear
boundary.
Page 4
Infrastructure protection No acceptable outcome provided -
PO10
Earthworks and vehicular access do not
adversely impact on the capacity, operations
and maintenance of existing infrastructure.
Environmental protection No acceptable outcome provided -
PO11
Earthworks minimise any adverse impact
upon groundwater, watercourses,
drainage lines, wetlands, and
native vegetation.
Dams AO12.1 Not applicable - the proposed
PO12 Where the site is in the Rural zone— development does not relate to a dam.
Dam location and construction does
not impact upon neighbouring
properties or road reserves, in terms 1. the land has a slope of less than
of— 25% (1:4);
2. the earthworks including cut and
fill batters and retaining walls
1. hydrology; are setback a minimum of 50
2. alteration of existing overland flow metres from the property
paths and patterns; boundary; and
3. landslide or failure of dam wall; 3. the size of the lot is greater than
and 5 hectares.
4. effluent disposal areas.
AO12.2
Where the site is in the Rural
residential zone or the Rural zone and
the lot is less than 5 hectares:
1. the land has a slope of less than
1:6;
2. the earthworks including cut and
fill batters and retaining walls
are setback a minimum of 20
metres from the property
boundary; and
3. the dam work involves less than
500m³ of material.
AO12.3
For all other zones—
No acceptable outcome provided
Page 5
If you have any queries regarding this application, please do not hesitate to contact me on 07 3069 5775. Yours sincerely Chris Williams Certifier Professional Certification Group