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BEST PRACTICE GUIDELINES FOR CONTROLLING STORMWATER POLLUTION FROM BUILDING SITES MAY 2012 www.o-2.com.au
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Page 1: Best practice guidelines for controlling stormwater pollution from ...

Best practice guidelines for controlling stormwater pollution from Building sites

maY 2012

www.o-2.com.au

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Best practice guidelines for controlling stormwater pollution from Building sites

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

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Best practice guidelines for controlling stormwater pollution from Building sites

1 Framework 2 purpose 2 environmental objectives 3 legal requirements 3

2 Erosion and sediment controls for building construction sites 5 evaluate site limitations 5 stabilise site entry / exit points 7 prevent erosion 8 manage stockpiles 9 divert up-slope stormwater 11 control roof water drainage 12 treat sediment laden water 13 manage site waste 15 appropriate staging of erosion & sediment controls on building sites 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

taBle of contents

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1 Best practice guidelines for controlling stormwater pollution from Building sites

Building site exhibiting best practice erosion & sediment control

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.

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.

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1. framework

Sediment already in stormwater drainage. A clear breach of the Environmental Protection Act 1994

Sediment from this building site will move to the stormwater drainage in times of rainfall

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).

Purposethe intention of this document is to provide:

> 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.

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.

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Environmental Objectivesthe 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 RequirementsThe 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.

> 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

Mangrove ecosystems are the nursery habitat of the estuary. Suspended sediment levels need to decrease to ensure protection of these assets

Flood plume exhibiting high sediment levels after heavy rainfall

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4Best 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

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.

> 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.

Erosion and sediment controls detailed in this document represent what is deemed reasonable and practicable

State Planning Policy 4/10 Healthy Waters

Tomorrow’s Queensland: strong, green, smart, healthy and fair

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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).

2. erosion and sediment controls

for Building construction sites

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Photo 1 - Steep sites require appropriate building design

Photo 2 - Poor soils can result in erosion problems even before building works start

Photo 3 - Exclusion fencing used to identify limit of disturbance

Photo 4 – Limited site access is no excuse to move building activities and stockpiles onto the footpath

Image supplied by Catchments & Creeks Pty Ltd

Image supplied by Catchments & Creeks Pty Ltd

Image supplied by Catchments & Creeks Pty Ltd

Image supplied by Catchments & Creeks Pty Ltd

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Stabilise Site Entry / Exit Pointsa 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.

Figure 1 − Entry/exit rock pad for single dwelling building sites

Figure 2 – Stormwater runoff being directed off an entry/exit pad

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Figure 3 – Example of an entry/exit pad that drains back into the site

Where practicable, the rock pad should extend from the kerb to the building slab

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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.

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

... Mulch must not be used in areas of the site which are exposed to concentrated flow, or on batters steeper than 15%

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Manage Stockpilessuitable 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)

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Photo 7 – Note earth stockpile behind sediment fence (left), and covered stockpile (right)

Photo 8 – Stockpiles of sand and other erodible materials must not be placed on the road verge or near stormwater inlets

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 LtdImage supplied by Catchments & Creeks Pty Ltd

Image supplied by Catchments & Creeks Pty LtdImage supplied by Catchments & Creeks Pty Ltd

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Photo 11 - Flow diversion bank Photo 12 - Catch drain lined with jute mesh

Figure 4 – Standard clean water diversion drain dimensions (catchment <7500m2)

... The runoff from any up-slope catchment area exceeding 1500m2 must be diverted around the work site or soil disturbance.

Divert Up-slope Stormwaterthe 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.

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.

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Image supplied by Catchments & Creeks Pty LtdImage supplied by Catchments & Creeks Pty Ltd

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... Permanent or temporary downpipes need to be installed to suitably manage roof water as soon as the roof and guttering are laid.

Control Roof Water Drainageto 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.

Photo 13 – Temporary downpipe to final roof stormwater system

Photo 14 – Installation of permanent drainage system before roof framing

Image supplied by Catchments & Creeks Pty LtdImage supplied by Catchments & Creeks Pty Ltd

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Treat Sediment Laden Waterall 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.

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.

Photo 15 – Sediment fence placed along the contour down-slope of a building site

Photo 16 – Sediment fence showing use of regular ‘returns’

Figure 5 - Sediment fence design requirements

Figure 6 - Anchoring base of fabric

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sediment control systems must not be installed outside the property boundary. controls situated on the road have the potential to interfere with pedestrian traffic.

poorly maintained sediment fences will render them useless for the purpose of ponding water.

Photo 18 - Sediment barriers must not extend onto the road verge.

Image supplied by Catchments & Creeks Pty Ltd

Image supplied by Catchments & Creeks Pty Ltd

Photo 17 – Sediment barriers must not be placed within the road reserve.

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Manage Site Wasteadequate 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.

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.

15

Concrete dust must not be placed in a position where it could be expected to wash from the site and cause environment harm.

Contain concrete waste washed from trucks and mixer units on site.

Photo 19 - Site rubbish pit protected from wind through the use of a “sediment fence” wind break

Photo 20 - Mini-skip used for waste collection

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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

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these diagrams further highlight the erosion and sediment control measures which should be adopted for building sites.3. appendix a – example erosion

and sediment control plans

17

Property falls towards road

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erosion & sediment control for Building sites

Property falls along road

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19 Best practice guidelines for controlling stormwater pollution from Building sites

erosion & sediment control for Building sites

Property falls away from road

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erosion & sediment control for Building sites

Narrow Lot

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21 Best practice guidelines for controlling stormwater pollution from Building sites

erosion & sediment control for Building sites

Zero Lot alignment

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erosion & sediment control for Building sites

Cul-de-sac property

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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.

4. appendix B proforma statement

certifYing compliance witH tHese guidelines

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1. erosion controls

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.

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.

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

must be applied to the rock entry/exit pad if sediment deposition causes greater than 50% of the voids to be filled.

4. waste management

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.

5. waste water management

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.

6. stockpile management

a. no materials to be stockpiled outside the property boundaries beyond the end of a working day.

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.

date: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . owner: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

lot / plan: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

property address: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

satisfactory: unsatisfactory:

comments: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

assessor: . . . . . . . . . . . . . . . . . . . . . . . signature: . . . . . . . . . . . . . . . . . . . . . . . date: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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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.

5. appendix csite inspection

reporting proforma

Site Inspection Report

date: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

owner: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

lot / plan: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

property address: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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1. Erosion Controls

a. were disturbed areas outside pad footprint stabilised immediately after bulk cut and fill (<24 hours)?

b. Has the grass on footpaths been protected and not disturbed by works?

c. are stockpiles covered if they have been retained on-site for >2 weeks?

2. Drainage Controls

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?

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?

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?

4. Waste Management

a. is a receptacle for waste present on site?

is litter contained within receptacle?

5. Waste Water Management

a. Has all wastewater been managed appropriately and not discharged to waters?

6. Stockpile Management

a. Have stockpiles been stored outside the property boundary overnight?

7. Road Sweeping

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

satisfactory: unsatisfactory:

comments: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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assessor: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

signature: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

date: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inspection Checklist Y N N/A Inspection Checklist Y N N/A

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