Best practice guidelines for
controlling stormwater
pollution from building sites
MAY 2012
www.o-2.com.au
This document has been prepared with all due diligence and care, based on the best available information at the time of publication. Mackay
Regional Council holds no responsibility for any errors or omissions within this document. Any decisions made by other parties based on this
document are solely the responsibility of those parties. Information contained within this document is from a number of sources and, as such,
may not represent council policy.
Images and photographs within these guidelines (including the front cover main photograph) that are marked “Catchments & Creeks Pty Ltd”
remain the property of Catchments & Creeks Pty Ltd and cannot be reproduced within another publication without written permission from
Catchments & Creeks Pty Ltd.
© O2 Environment + Engineering
May 2012
Front cover images:
Main photograph:Supplied by Catchments & Creeks Pty Ltd
Minor photograph (far left):Supplied by the Great Barrier Reef Marine Park Authority
Minor photograph (middle):Supplied by Mackay Regional Council
Minor photograph (far right):Supplied by the Great Barrier Reef Marine Park Authority
Best practice guidelines for controlling stormwater pollution from building sites
TABLE OF CONTENTS
1 Framework 2
Purpose
Environmental objectives
Legal requirements
2
3
3
2 Erosion and sediment controls for building construction sites
5
Evaluate site limitations
Stabilise site entry / exit points
Prevent erosion
Manage stockpiles
Divert up-slope stormwater
Control roof water drainage
Treat sediment laden water
Manage site waste
Appropriate staging of erosion & sediment controls on building sites
5
7
8
9
11
12
13
15
16
3 Appendix A – Example erosion and sediment control plans
17
4 Appendix B − Proforma statement certifying compliance
with these guidelines
23
5 Appendix C – Site inspection reporting proforma
25
Best practice guidelines for controlling stormwater pollution from building sites
This document has been prepared to provide the building industry with best
practice guidelines for controlling stormwater pollution from building sites. It
relates to urban development sites below the threshold in section 2.7 of the
State Planning Policy for Healthy Waters. This involves the construction of
six or less dwellings or involves disturbance areas of less than 2500m2. By
following these best practice guidelines, builders in the Mackay region will
be doing their part to ensure that runoff generated from their building site
causes minimal irreparable damage to the region’s waterways and in turn,
minimises the risk of environmental harm and the associated fines.
The document includes:
1.Example Erosion and Sediment Control Plans (ESCP) which contain the required best
practice control measures for a variety of building lots – Appendix A.
2.A proforma statement from the development owner or contractor who submitted the
development application certifying compliance with these guidelines – Appendix B.
3.A site inspection reporting proforma that can be used by the owner, builder or local
government officers to monitor compliance with these guidelines – Appendix C.
Building site exhibiting best practice erosion & sediment control
1
Best practice guidelines for controlling stormwater pollution from building sites
1. Framework
Without adequate erosion and sediment controls in place during the
construction phase, the combined impact of runoff from many small
building sites will contribute significantly to the total sediment loads
entering the region’s waterways.
This guideline identifies the controls that if installed, are expected to achieve
compliance with the performance outcomes for protecting water quality in natural
waterways, as prescribed in the State Planning Policy for Healthy Waters (SPP Healthy
Waters).
Purpose
The intention of this document is to provide:
Sediment from this building site will move
to the stormwater drainage in times of
rainfall
>Clear guidance on the minimum requirements for erosion and sediment
control on building sites.
>A checklist to be used by regulatory authorities to provide consistent
enforcement of the policy.
This document applies to residential and commercial building sites with a total
disturbance area of less than 2500m2.
The document considers:
> Builders and Site Managers - Resources to assist builders or managers of
building construction sites are provided in the body of this guideline and
in the example erosion and sediment control plans in Appendix A. These
diagrams summarise all requirements stipulated in the text.
>Councils and Regulatory Personnel - This checklist provides a mechanism
to allow for consistent regulation of the policy and provides guidance on
when regulatory enforcement may be appropriate.
Sediment already in stormwater drainage.
A clear breach of the Environmental
Protection Act 1994
This document discusses Environmental Protection Act 1994 provisions only and it
is recognised that other complementary enforcement provisions of other legislation,
such as the Sustainable Planning Act 2009, may also be considered during
enforcement decisions.
Best practice guidelines for controlling stormwater pollution from building sites
2
Environmental Objectives
The objective of this document is for building works and associated construction
activities to be planned and executed so that:
>The environmental values of waters are enhanced or protected; and
>The water quality objectives and management goals of waters are achieved.
Legal Requirements
Flood plume exhibiting high sediment
levels after heavy rainfall
The State Planning Policy for Healthy Waters (SPP HW) was made under section
775 of the Sustainable Planning Act. The SPP HW is intended to ensure that
urban developments are planned, designed, constructed and operated to manage
stormwater and waste water in ways that help protect the environmental values
of waterways specified in the Environmental Protection (Water) Policy 2009 (EPP
Water). The SPP HW sets our overall, performance and acceptable outcomes
sought by the policy. The State Planning Policy Guideline for Healthy Waters which
supports the SPP HW advocates compliance with these guidelines as the most
effective and efficient way of addressing stormwater design objectives for small
scale developments below six lots or 2500m2. However, the risk of soil erosion and
contaminated stormwater discharging to waterways must also be taken into account.
An erosion and sediment control plan may be required for small scale developments
posing more than a low risk to waterway pollution.
Stormwater runoff from building construction sites has a high potential to
cause water contamination and environmental harm. This is regulated under the
Environmental Protection Act 1994.
>
Mangrove ecosystems are the nursery
habitat of the estuary. Suspended
sediment levels need to decrease to
ensure protection of these assets
3
Under s440ZG it is an offence to unlawfully deposit a prescribed water
contaminant to waters. Prescribed contaminants are listed in Schedule 9 of
the Environmental Protection Regulation 2009 (EP Reg).
>
Under s319 an obligation is placed upon all persons in Queensland who are
carrying out activities which may cause environmental harm to comply with
Best practice guidelines for controlling stormwater pollution from building sites
the “General Environmental Duty” (GED). This requires that all reasonable
and practicable measures must be adopted to prevent and minimise
environmental harm. Although not being able to demonstrate compliance
against GED is not an offence, demonstrating that all reasonable and
practicable measures have been adopted is a defence for offences
such as water contamination. For instance, under Chapter 10, s493A
of the EP Act, where a person deposits a prescribed water contaminant
to waters or causes unlawful environmental harm, it is a defence to
demonstrate compliance with the GED. Demonstrating that all reasonable
and practicable measures have been conceived and implemented should
encompass:
a)Thorough and ongoing site assessments;
b)Consideration of, and adaptation for site specific erosion risk factors
including topography, soil type, climate and season; and
Erosion and sediment
controls detailed
in this document
represent what is
deemed reasonable
and practicable
c)Incorporation in the design, installation, operation, management,
maintenance and monitoring of control measures which are consistent with
the measures set out in this document.
>Reference must be made to s493A of the Environmental Protection Act
1994 when a decision is made with regards to the unlawfulness of water
contamination, for instance where the release is authorised under a
development approval.
State Planning Policy 4/10
Healthy Waters
>The Environmental Protection (Water) Policy (2009) establishes a hierarchy
of preferred management options for wastes, including water contaminants,
which when applied, protects or enhances the environmental values of
waters. This document applies the management hierarchy in establishing
the environmental performance standards which are necessary to help
enhance or protect the environmental values of waters from the impacts of
land development and urban development sites.
>Compliance with the relevant stormwater quality management measures
and erosion and sediment control plans set out in this guideline document
should enable the builder or contractor to act lawfully in meeting their
general environmental duty.
Tomorrow’s Queensland:
strong, green, smart, healthy and fair
Best practice guidelines for controlling stormwater pollution from building sites
4
2. Erosion and
Sediment Controls
for building
construction sites
The following controls must be undertaken on each building
construction site.
Should one of the provisions not be deemed practicable, an Erosion & Sediment
Control plan demonstrating compliance with SPP Healthy Waters may be
developed and submitted in place of adopting these compliance solutions.
Evaluate Site Limitations
Assess the site constraints and any site-specific concerns, including:
>Specific vegetation that may need to be identified and/or isolated from
the site disturbance.
> Highly erodible soils that may require additional erosion control
measures.
>Type of construction should consider landform. Avoid slab on ground
construction on steep sites (Photo 1).
>Up-slope drainage catchments that may need to be diverted around
the work site.
>Work space limitations that may require site-specific sediment control
measures and/or the extensive use of skips or bins for material
storage and waste management.
>Expected rainfall intensity during period of disturbance (wet season vs
dry season).
5
Best practice guidelines for controlling stormwater pollution from building sites
Photo 2 - Poor soils
can result in erosion
problems even before
building works start
Photo 1 - Steep sites
require appropriate
building design
Image supplied by Catchments & Creeks Pty Ltd
Image supplied by Catchments & Creeks Pty Ltd
Photo 4 – Limited
site access is no
excuse to move
building activities
and stockpiles onto
the footpath
Photo 3 - Exclusion
fencing used to identify
limit of disturbance
Image supplied by Catchments & Creeks Pty Ltd
Image supplied by Catchments & Creeks Pty Ltd
Best practice guidelines for controlling stormwater pollution from building sites
6
A stabilised site access must be established and if possible, limited
to one point only. The access allows for the delivery of goods by
truck while preventing the unnecessary tracking of sediment onto the
road from multiple locations. A stabilised entry/exit point normally
consists of a stabilised rock pad and should be constructed in
compliance with Figure 1.
Image supplied by Catchments & Creeks Pty Ltd
Stabilise Site Entry / Exit Points
Image supplied by Catchments & Creeks Pty Ltd
Where practicable,
the rock pad
should extend from
the kerb to the
building slab
Image supplied by Catchments & Creeks Pty Ltd
Figure 1 − Entry/exit rock pad for single dwelling building sites
Figure 2 – Stormwater runoff being
directed off an entry/exit pad
7
Best practice guidelines for controlling stormwater pollution from building sites
Figure 3 – Example of an entry/exit pad
that drains back into the site
Prevent Erosion
All disturbed areas outside a 2m buffer of the house pad footprint must be stabilised
with mulch immediately after bulk cut and fill. Straw mulch, sugar cane mulch, or
tub grinded clean vegetative material should be used for this purpose and should be
applied at a rate of at least one bale per 25m2 (or 220kg/1000m2) and achieve an
even coverage of 50mm depth across all disturbed areas (Photos 5 & 6).
Mulch should be removed prior to final revegetation and the soil treated with NPK
fertiliser. This is done to offset potential nutrient imbalances that may have occurred
during use. Un-composted mulch should not be incorporated into soil as it may result
in ongoing nutrient problems and prevent effective revegetation.
Mulch must not be used in areas of the site which are exposed to concentrated flow,
or on batters steeper than 15%. In these cases, erosion control blankets should be
used. Both ‘thick’ and ‘thin’ blankets are available. The thin blankets perform a task
similar to light mulching, while thick blankets perform a task similar to that of heavy
mulching. Thick blankets can also be used to temporarily combat weed control.
... Mulch must not be
used in areas of the site
which are exposed to
concentrated flow, or on
batters steeper than 15%
Image supplied by Catchments & Creeks Pty Ltd
Image supplied by Catchments & Creeks Pty Ltd
Photo 5 – Light mulching
Photo 6 – Heavy mulching
The addition of
mulch will help to
establish plants,
reduce water/sediment
loss and control
weed growth
Best practice guidelines for controlling stormwater pollution from building sites
8
Manage Stockpiles
Suitable material storage areas must be located up-slope of the main sediment
barrier (e.g. sediment fence). The building layout should allow sufficient room on
the site for the storage of all building materials. No materials should be stored
outside the property boundaries.
Stockpiles kept on site for more than two weeks will require an impervious cover
(e.g. builder’s plastic or geofabric) to protect against raindrop impact. Stockpiles
of clean sand that are located behind a sediment fence will only need a protective
cover if the stockpiles are likely to be exposed to strong winds.
On steep sites and sites with limited available space, erodible materials may need
to be stored in commercial-sized bins or mini-skips prior to use.
All stockpiles and
building materials
must be located
within the sediment
control zone (i.e
sediment fence)
9
Best practice guidelines for controlling stormwater pollution from building sites
Photo 8 – Stockpiles
of sand and other
erodible materials must
not be placed on the
road verge or near
stormwater inlets
Photo 7 – Note
earth stockpile behind
sediment fence (left),
and covered stockpile
(right)
Image supplied by Catchments & Creeks Pty Ltd
Image supplied by Catchments & Creeks Pty Ltd
Photo 9 – Building
works must not occur
on the footpath
Photo 10 – Building
works must not occur
on the footpath
Image supplied by Catchments & Creeks Pty Ltd
Image supplied by Catchments & Creeks Pty Ltd
Best practice guidelines for controlling stormwater pollution from building sites
10
Divert Up-slope Stormwater
The runoff from any up-slope catchment area exceeding 1500m2 must be diverted
around the work site or soil disturbance. If the catchment requiring diversion is
less than 7500m2 standard drain dimensions indicated in Figure 4 may be used,
otherwise a formally designed diversion channel will be required.
... The runoff from any
up-slope catchment area
exceeding 1500m2 must be
diverted around the work
site or soil disturbance.
Early installation of permanent stormwater drainage may address this requirement.
Runoff must not be diverted in a manner that causes inconvenience to neighbouring
properties, results in the stormwater being unlawfully discharged from the property, or
causes erosion or water contamination.
Up-slope stormwater may be collected and moved across the site by constructing
either “flow diversion banks” (Photo 11) or “catch drains” (Photo 12).
Temporary catch drains must be stabilised with turf, geotextile, or erosion control mats.
Image supplied by Catchments & Creeks Pty Ltd
Image supplied by Catchments & Creeks Pty Ltd
Image supplied by Catchments & Creeks Pty Ltd
Photo 11 - Flow diversion bank
11
Photo 12 - Catch drain lined with jute
mesh
Figure 4 – Standard clean water diversion drain dimensions (catchment <7500m2)
Best practice guidelines for controlling stormwater pollution from building sites
Control Roof Water Drainage
To reduce soil erosion and site wetness, roof water should be discharged away from
the active work area and other disturbed soil surfaces to a stable, legal discharge
point. This may include proposed final roofwater discharge point, vegetated areas
on site that will not drain back onto disturbed areas, or previously established clean
water diversion drains.
Permanent or temporary downpipes (Photo 13) need to be installed to suitably
manage roof water as soon as the roof and guttering are laid. The permanent site
drainage system (Photo 14) should be installed and ready to receive roof water prior
to the framing inspection.
The use of such controls can significantly reduce construction down-time, risk of
water contamination, and clean-up costs following extended periods of wet weather.
... Permanent or temporary
downpipes need to be
installed to suitably manage
roof water as soon as the
roof and guttering are laid.
Photo 14 – Installation
of permanent drainage
system before roof
framing
Photo 13 – Temporary
downpipe to final
roof stormwater system
Image supplied by Catchments & Creeks Pty Ltd
Image supplied by Catchments & Creeks Pty Ltd
Best practice guidelines for controlling stormwater pollution from building sites
12
All disturbed area’s resultant from the building or construction process shall be
directed to a sediment fence that has been constructed in accordance with
Figures 5 and 6. Sediment fence fabric must be manufactured from either woven
UV-stabilised polyester, polypropylene fabric, or a non-woven geotextile fabric.
Shade cloth or filter cloth must not be used as sediment fence.
Photo 16 – Sediment fence showing use
of regular ‘returns’
Figure 6 Anchoring base
of fabric
Best practice guidelines for controlling stormwater pollution from building sites
Image supplied by Catchments & Creeks Pty Ltd
Photo 15 – Sediment fence placed along
the contour down-slope of a building site
13
Figure 5 - Sediment fence design requirements
Image supplied by Catchments & Creeks Pty Ltd
Image supplied by Catchments & Creeks Pty Ltd
Sediment fences function by temporarily ponding water which allows coarse
sediment to settle. They provide absolutely no benefit if ponding does not occur.
This can be achieved by installing a fence along the contour, adding “returns” or
“turnbacks” at 10m intervals to improve ponding. Turning back the ends of the
sediment fence will prevent water from flowing around the fence.
Image supplied by Catchments & Creeks Pty Ltd
Treat Sediment Laden Water
Sediment control systems must not be installed outside the property boundary.
Controls situated on the road have the potential to interfere with pedestrian traffic.
Photo 17 – Sediment
barriers must not be
placed within the road
reserve.
Image supplied by Catchments & Creeks Pty Ltd
Photo 18 - Sediment
barriers must not extend
onto the road verge.
Poorly maintained sediment fences will render them useless for the purpose of
ponding water.
Image supplied by Catchments & Creeks Pty Ltd
Best practice guidelines for controlling stormwater pollution from building sites
14
Manage Site Waste
Contain concrete
waste washed from
trucks and mixer
units on site.
Image supplied by Catchments & Creeks Pty Ltd
Brick, tile and masonry cutting must not occur outside the property. Such
building activities must be carried out on a pervious surface, such as grass or
open soil, or in such a manner that all sediment-laden runoff is prevented from
discharging into a gutter, drain, or water body.
Image supplied by Catchments & Creeks Pty Ltd
Concrete dust must
not be placed in a
position where it could
be expected to wash
from the site and cause
environment harm.
Adequate waste receptacles (Photo’s 19 & 20) must be provided on-site and
maintained in a way that potential and actual environmental harm resulting from
such material waste is minimised.
Photo 19 - Site rubbish pit protected
from wind through the use of a
“sediment fence” wind break
1515
Best practice guidelines for controlling stormwater pollution from building sites
Photo 20 - Mini-skip used for waste
collection
Appropriate staging of erosion & sediment controls on building sites
Whether temporary or permanent, there are several critical drainage, erosion, and sediment control measures that need to be installed before
building works commence. The general construction sequence is presented below.
1.Obtain all necessary permits, licences and approvals before site establishment
2.Establish a single, stabilised entry/exit point (e.g. rock pad)
3.Install sediment fence(s) on the site, downslope of the works
4.Divert up-slope water around the work site and stabilise drainage channels
5.Clear only those areas necessary for building works to occur
6.Strip and stockpile the topsoil before commencing earthworks or excavations
7.Stockpile erodible materials within the sediment control zone
8.Stabilise exposed earth outside of the proposed slab location (e.g. mulch, turf, erosion control blankets)
9.Install on-site waste receptors (e.g. mini-skips, bins, wind-proof litter receptors)
10.Commence building activities
11.Establish the site’s underground drainage system (if any)
12.Connect roof water downpipes to the permanent underground drainage system as soon as the roof and guttering are laid
13.Regularly inspect all drainage, erosion and sediment control measures and maintain all measures in proper working order at all times
14.Progressively revegetate/stabilise the site. Remove any remaining temporary drainage, erosion and sediment control measures upon
complete stabilisation of the site
Best practice guidelines for controlling stormwater pollution from building sites
16
3. Appendix A – Example Erosion
and Sediment Control Plans
These diagrams further highlight the erosion and sediment control measures which
should be adopted for building sites.
Property falls towards road
1717
Best practice guidelines for controlling stormwater pollution from building sites
Erosion & sediment control for building SITES
Property falls along road
Best practice guidelines for controlling stormwater pollution from building sites
18
Erosion & sediment control for building SITES
Property falls away from road
19
Best practice guidelines for controlling stormwater pollution from building sites
Erosion & sediment control for building SITES
Narrow Lot
Best practice guidelines for controlling stormwater pollution from building sites
20
Erosion & sediment control for building SITES
Zero Lot alignment
21
Best practice guidelines for controlling stormwater pollution from building sites
Erosion & sediment control for building SITES
Cul-de-sac property
Best practice guidelines for controlling stormwater pollution from building sites
22
4. APPENDIX B
PROFORMA STATEMENT
CERTIFYING COMPLIANCE
WITH THESE GUIDELINES
The following proforma statement, combined
with the inspection checklist will be used by
Council assessors to gauge the effectiveness
of site erosion and sediment controls.
It is envisaged that the following documents
will provide awareness to the builder of
controls that will be audited in building
inspections.
Builders are not required to fill in this form nor
lodge it with council, but is simply provided as
a courtesy to the builder.
23
Best practice guidelines for controlling stormwater pollution from building sites
Date: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Owner: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
must be applied to the rock entry/exit pad if sediment deposition causes greater than 50% of
the voids to be filled.
Lot / Plan: .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.Waste Management
Property Address: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
a.Waste receptacles must be located on the site and suitably maintained during the
building phase so as to prevent any off-site movement of building waste via wind or water.
1.Erosion Controls
5.Waste Water Management
a.Immediately following the completion of bulk earthworks, all disturbed areas outside
the footprint of the base slab are to be mulched (minimum 25mm deep / 220kg/1000m2) or
covered with erosion control mats to stabilise against erosion in areas subject to concentrated
flow or > 15% slopes. Seeding or hydroseeding are not acceptable temporary stabilisation
methods.
a. Brick, tile and masonry cutting must be carried out on a pervious surface, such as
grass, or open soil, or in such a manner that no contaminated waste water, or process water
discharges into a gutter, drain or waters.
b.All ground-cover vegetation outside the immediate building area is to be preserved
during the building phase. Grass on the footpath is not to be disturbed. If disturbed, the grass
is to be replaced with turf immediately.
a.No materials to be stockpiled outside the property boundaries beyond the end of a
working day.
2.Drainage Controls
a.If the upslope area is greater than 1500m2, install drainage controls upslope of the area
of disturbance. Diversion measures shall be installed before disturbance, and maintained until
landscaping is complete. Ensure diverted water is discharged in a lawful manner that will not
cause erosion or sediment pollution, inconvenience or damage to neighbouring properties.
b.Clean water catch drains or bunds must be stabilised with geofabric, jute or turf
c.Prior to installing the roof, establish the site’s underground stormwater drainage system;
or temporary drainage shall be established to take water to existing road stormwater.
d.Immediately after the roof and guttering is installed, roof water downpipes are to be
connected to the stormwater drainage system.
3.Sediment Controls
a.Sediment fences are to be installed downgradient of disturbed or mulched areas.
Fences are to be constructed of filter fence fabric, not shade mesh, be at least 500mm high,
trenched in 200mm, and be constructed such as to cause water to pond on the up-gradient
side. Installed prior to disturbance and maintained until landscaping works are finalised.
b.Sediment must be removed from up-slope of each sediment trap (e.g. sediment fence)
immediately after rainfall if the depth of sediment exceeds 200mm or 30% of total sediment
storage capacity, whichever is less.
c.A stabilised site entry must be established prior to works commence on site. Runoff
from the entry must be directed to a sediment fence by way of a bund or drain. Additional rock
6.Stockpile Management
7.Road Sweeping
a.All sediment deposited off the site as a result of work-related activities is to be collected
immediately (or by no later than end of the days work) via dry methods (e.g., sweeping) and
disposed of in a manner that will prevent any safety or erosion hazard.
b.Washing/flushing of sealed roadways must only occur where sweeping has failed to
remove sufficient sediment and there is a compelling need to remove the remaining sediment
(e.g. for safety reasons).
8.Additional Controls
a.Council reserves the right to require additional erosion and sediment control measures to
be installed during construction.
I have read and understood the requirements above and agree to install and maintain the
controls described. Failure to comply may result in compliance action being undertaken under
the Sustainable Planning Act 2009 and/or the Environmental Protection Act 1994.
Satisfactory: Unsatisfactory: Comments: .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.......................................................................................................................
.......................................................................................................................
Assessor: . . . . . . . . . . . . . . . . . . . . . . . . Signature: . . . . . . . . . . . . . . . . . . . . . . . . Date: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Best practice guidelines for controlling stormwater pollution from building sites
24
5. Appendix C
SITE INSPECTION
REPORTING PROFORMA
This inspection report can be used by the owner, builder or
local compliance officer to monitor compliance with these
best practice guidelines.
This checklist summarises what is deemed reasonable and
practicable.
Ensuring these measures are implemented will reduce the risk
of environmental harm and potential fines.
Site Inspection Report
Date: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Owner: .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lot / Plan: .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Property Address: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25
Best practice guidelines for controlling stormwater pollution from building sites
Inspection Checklist
Y
N
N/A
Inspection Checklist
Y
1. Erosion Controls
4. Waste Management
a.Were disturbed areas outside pad footprint
stabilised immediately after bulk cut and fill (<24 hours)?
a.Is a receptacle for waste present on site?
b.Has the grass on footpaths been protected and not disturbed by works?
5. Waste Water Management
c.Are stockpiles covered if they have been retained on-site
for >2 weeks?
a. Has all wastewater been managed appropriately and not discharged to waters?
6. Stockpile Management
a.If up gradient catchment is >1500m2 has drainage
diversion been installed?
b.If drainage diversion is needed, are catch drains
stabilised with geofabric, jute or turf?
7. Road Sweeping
c.Has site drainage or temporary above ground PVC
drainage been installed prior to roof installation?
d.Have roof downpipes been connected to existing or
temporary drainage immediately after roof and gutter
construction?
N/A
Is litter contained within receptacle?
2. Drainage Controls
N
a.Have stockpiles been stored outside the property
boundary overnight?
a.Has all sediment deposited offsite been cleaned up
immediately (or by end of days work at the latest)
b.Road has not been washed, unless street sweeping
has been carried out and residual sediment cannot be
removed and presents a safety hazard
3. Sediment Controls
a.Are sediment fences installed down gradient of all
mulched or disturbed areas?
Is sediment fence 500mm high, trenched in 200 mm
deep, 2m peg spacing and able to pond water?
Was sediment fence installed prior to disturbance?
b.Has sediment fence been maintained until landscaping is
complete? Is accumulated sediment trapped in sediment
fences less than 200mm high (or 30% of potential
storage volume whichever is less)?
c. Has a stabilised site entry been constructed?
Is the entrance at least 2m wide, made of 40-75mm size
rock, have geofabric underlay, direct runoff to sediment
fence (if required)?
Are less than 50% of the voids filled with dirt?
Satisfactory: Unsatisfactory: Comments: .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Assessor: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signature: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Date: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Best practice guidelines for controlling stormwater pollution from building sites
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