Sustainability Management Plan (SMP) Wheelers Hill ... · WMP and SMP Architect Design Development...

P 1300 66 45 32 [email protected] 1 | S M P

Sustainability Management Plan (SMP)

855-869 Ferntree Gully Road

Wheelers Hill

Residential Development

For Town Planning Purposes

Report No: 2017-693-SMP

Date: 17th February 2017 | Updated 4th May 2017

Total number of pages: 56

EcoResults consultants: Yvonne Hill, Samuel Thomson and Marius Andrasciuc


Table of Contents Report No: 2017-693-SMP ................................................................................................................................. 1

Table of Contents ............................................................................................................................................... 2

Project Information ............................................................................................................................................ 3

Introduction ....................................................................................................................................................... 4

Clause 22.13-1 Policy Basis ................................................................................................................................ 5

Clause 22.13.2 | Objectives ............................................................................................................................... 5

Clause 22.13-3 & 22.13-4 | Policy and Application Requirements ................................................................... 7

Clause 22.13-5 | Decision guidelines ................................................................................................................. 7

ESD Schedule ...................................................................................................................................................... 8

Implementation Schedule .................................................................................................................................. 9

10 Key Sustainable Building Principles Addressed: ......................................................................................... 12

1. Indoor Environment Quality (IEQ) ............................................................................................................... 12

2. Energy Efficiency .......................................................................................................................................... 14

3. Water Resources .......................................................................................................................................... 17

4. Stormwater Management ........................................................................................................................... 18

Explanation of the STORM assessment scoring system .................................................................................. 19

5. Building Materials (not listed in Clause 22.13) ............................................................................................ 20

6. Transport ...................................................................................................................................................... 22

7. Waste Management .................................................................................................................................... 24

8. Urban Ecology .............................................................................................................................................. 25

9. Innovation (not in Clause 22.13) .................................................................................................................. 27

10. Ongoing Building & Site Management (not in Clause 22.05) .................................................................... 28

Conclusion ........................................................................................................................................................ 29

Legal statement ............................................................................................................................................... 29

Appendix .......................................................................................................................................................... 30

Why is sustainable development needed? ...................................................................................................... 30

STORM assessment tool .................................................................................................................................. 30

Maintenance program for WSUD measures rainwater tanks ......................................................................... 32

Maintenance program for WSUD measures for Enviss Sentinel pits .............................................................. 32

Preliminary NatHERS Thermal Performance Assessment ............................................................................... 33

Wind Frequency Analysis ................................................................................................................................ 35

Walk Score Information ................................................................................................................................... 36

Commuting to Melbourne by car .................................................................................................................... 36

Travel Time Maps ............................................................................................................................................. 37

Energy Ratings | Preliminary Thermal Performance Assessments ................................................................. 39

STORM printout (1 page) ................................................................................................................................. 47

Melbourne Water Rainwater Tank Fact Sheet (2 pages)................................................................................. 48

Enviss Sentinel Brochure (4 pages) .................................................................................................................. 51

Enviss Sentinel Raingarden Equivalency Table (2 pages)…………………………………………………………………………… 55


Project Information Planning Permit Applicant

Jells Hill Pty Ltd ATF Jells Hill Unit Trust

Project Description

Residential Development

Property Address

855-869 Ferntree Gully Road, Wheelers Hill, Victoria, 3150

No. of dwellings

133

Total no. of carparking spaces for residents | Total no. of carparking spaces for visitors

193 | 30

Bike parking spaces for residents

130

Client Contact

Peyman Jadidi, Louisa Chen, Matt Close @ LUVARC

Eco Results Consultants | Contact info

Samuel Thomson | Yvonne Hill | Kirstie Rogerson | [email protected]

mailto:[email protected]


Introduction EcoResults has been engaged as sustainability consultants for the proposed development to ensure that

the development adequately responds to the City of Monash Environmentally Sustainable Development

Policy 22.13 (ESD) The purpose of this report is to detail how the proposed design and operation of the

building, as detailed in the town planning drawings and our comments and recommendations listed in this

report, satisfies both of the Clauses.

The report also explains how the design and operation addresses the 10 key sustainable building categories

identified by the Municipal Association of Victoria’s SDAPP (Sustainable Design Assessment in the Planning

Process) program.

Please note that the City of Monash cannot yet be selected within the BESS assessment tool. To ensure that the project at 855-869 Ferntree Gully Road, Wheelers Hill will comply with SDAPP standards and BESS requirements, EcoResults drew on the outcomes of BESS assessments for similar projects as a reference. We were therefore able to conclude that the development is likely to meet current benchmarks EcoResults has consulted extensively with the designer, planning consultant and other relevant sub-

consultants on how best to incorporate sustainability principles in the proposed design, and to comply with

the current benchmarks required.

The STORM and WalkScore calculators as well as FirstRate5 Thermal Performance software have been

used as benchmark assessment tools. The proposed development meets, and in most areas exceeds by a

considerable margin, the benchmarks set out by STORM.

The development is likely to meet the current benchmarks set out by SDAPP. This will be enabled by the

careful selection of water efficient taps and fittings, energy efficient heating and cooling appliances,

building materials with low embodied energy and other sustainability features as outlined under the 10

sustainability categories.

This report should be attached to and read in conjunction with the town planning drawings as well as

the WalkScore printouts in appendix, including the preliminary Thermal Performance Assessments

(energy ratings)


Clause 22.13-1 Policy Basis Monash City Council is committed to make Monash a more sustainable place to live, work and play. Critical to achieving this commitment is for development to meet appropriate environmental design standards. This policy aims to integrate environmental sustainability into land use planning, new developments and redevelopment of existing infrastructure. This policy provides a framework for early consideration of environmental sustainability at the building design stage in order to achieve the following efficiencies and benefits:

Easier compliance with building requirements through passive design;

Reduction of costs over the life of the building;

Improved affordability over the longer term through reduced running costs;

Improved amenity and liveability;

More environmentally sustainable urban form; and

Integrated water management.

If environmentally sustainable design is not considered at the time of planning approval, the ability to achieve environmentally sustainable development may be compromised by the time these matters are considered as part of a building approval. In addition, there may be difficulties or extra costs associated with retrofitting the development to implement environmentally sustainable design principles. This policy does not prescribe performance outcomes. The policy enables the provision of information and provides decision guidelines, which will assist in the assessment of whether development meets environmentally sustainable development objectives. This policy complements a range of non-statutory measures aimed at encouraging environmentally sustainable development. These measures include educating residents and applicants, assisting applicants to use Environmentally Sustainable Development (ESD) tools, leading by example with Council projects, promotion of exemplary private projects and promotion of use of materials with favourable life cycle impacts.

Clause 22.13.2 | Objectives The development should achieve best practice in environmentally sustainable development from the design stage through to construction and operation. In the context of this policy best practice is defined as a combination of commercially proven techniques, methodologies and systems, appropriate to the scale of development and site specific opportunities and constraints, which are demonstrated and locally available and have already led to optimum ESD outcomes. Best practice in the built environment encompasses the full life of the build. It is a policy to encourage innovative technology, design and processes in all development, which positively influence the sustainability of buildings. The following objectives should be satisfied where applicable:


Energy performance

To improve the efficient use of energy, by ensuring development demonstrates design potential for ESD initiatives at the planning stage.

To reduce total operating greenhouse gas emissions.

To reduce energy peak demand through particular design measures (eg. Appropriate building orientation, shading to glazed surfaces, optimise glazing to exposed surfaces, space allocation for solar panels and external heating and cooling systems).

Water resources

To improve water efficiency.

To reduce total operating potable water use.

To encourage the collection and reuse of stormwater.

To encourage the appropriate use of alternative water sources (eg. greywater). Indoor Environment Quality

To achieve a healthy indoor environment quality for the wellbeing of building occupants, including the provision of fresh air intake, cross ventilation, and natural daylight.

To achieve thermal comfort levels with minimised need for mechanical heating, ventilation and cooling.

To reduce indoor air pollutants by encouraging use of materials with low toxic chemicals.

To reduce reliance on mechanical heating, ventilation, cooling and lighting systems.

To minimise noise levels and noise transfer within and between buildings and associated external areas.

Stormwater Management

To reduce the impact of stormwater run-off.

To improve the water quality of stormwater run-off.

To achieve best practice stormwater quality outcomes.

To incorporate the use of water sensitive urban design, including stormwater re-use. Transport

To ensure that the built environment is designed to promote the use of walking, cycling and public transport, in that order.

To minimise car dependency.

To promote the use of low emissions vehicle technologies and supporting infrastructure. Waste management

To promote waste avoidance, reuse and recycling during the design, construction and operation stages of development.

To ensure durability and long-term reusability of building materials.

To ensure sufficient space is allocated for future change in waste management needs, including (where possible) composting and green waste facilities.

Urban Ecology

To protect and enhance biodiversity within the municipality.

To provide environmentally sustainable landscapes and natural habitats, and minimise the urban heat island effect.

To encourage the retention of significant trees.

To encourage the planting of indigenous vegetation.

To encourage the provision of space for productive gardens, particularly in larger residential

developments.


Clause 22.13-3 & 22.13-4 | Policy and Application Requirements It is policy that applications for the types of development listed in Table 1 be accompanied by information, which demonstrates how relevant policy objectives, will be achieved.

Table 1 requires an SMP for a development of 10 or more dwellings

A Sustainability Management Plan as specified in Table 1, as appropriate, must accompany an application. A Sustainability Management Plan should:

provide a detailed assessment of the development. It may use relevant tools from the examples listed in the table or an alternative assessment approach to the satisfaction of the responsible authority; and

identify achievable environmental performance outcomes having regard to the objectives of this policy (as appropriate); and

demonstrate that the building has the design potential to achieve the relevant environmental performance outcomes, having regard to the site’s opportunities and constraints; and

document the means by which the performance outcomes can be achieved.

Various assessment tools have been listed in Table 1, which may be used to assess how the proposed development addresses the objectives of this policy, as appropriate

Example tools listed include BESS, STORM and FirstRate5. See introduction for explanation of

which tools were used in the production of this report.

Clause 22.13-5 | Decision guidelines In determining an application, the responsible authority will consider as appropriate:

The extent to which the development meets the objectives and requirements of this policy from the design stage through to construction and operation.

Whether the proposed environmentally sustainable development performance standards are functional and effective to minimise environmental impact.

Whether the proposed environmentally sustainable development initiatives are reasonable having regard to the type and scale of the development and any site constraints.

Whether an appropriate assessment method has been used.

Whether an ESD plan or framework has previously been approved by the responsible authority (whether under a planning control or otherwise).


ESD Schedule

The ESD measures and commitments listed below are to be noted on plans

Lighting LED downlights and other high efficiency light fittings to be used throughout

(Not incandescent or halogen) Energy Efficiency Commitment

Minimum average 6 star NatHERS rating for dwellings sampled

Appliances

5 star gas instantaneous hot water system

5 star electric heating and cooling systems

Water 5 star WELS rated basin taps and 4 star rated toilets

3 star WELS rated shower heads (flow between 7.5 and 9.0 L/min)

Stormwater Quality

(WSUD)

Apartments: 4 x 45,000L rainwater tanks

Townhouses: 3,500L rainwater tank per dwelling (total 77,000L)

Show source of runoff and usage as per appendix of SMP

Transport 130 bike parking spaces

Glazing Treatments Aluminium frames with double-glazing

Shading Devices Refer to Section 2 of SMP for external shading to be shown on plans

Materials Low VOC paints

Waste Management An 80% commitment to recycle or reuse of demolition or construction waste


Implementation Schedule

The ESD initiatives set out in this report will be coordinated by the Development Manager in conjunction

with the following project design team members:

Architect

Thermal Performance Assessor

Building Services Consultant

Structural Engineer

Waste Management Consultant

An implementation schedule is set out in the following table:

# Initiative Requirement Responsibility Stage

1 Coordination of Initiatives

Full implementation Development Manager All

2 Energy Ratings Full First Rate Assessments for all dwellings

Thermal Performance Assessor (EcoResults)

Design Development

3 Heating & Cooling

Specification of units in accordance with nominated energy ratings 5 star rated heating and cooling systems

Development Manager Design Development

4 Energy Efficient Appliances

Specification of 4 star Dishwashers (Energy and WELS ratings)

Architect Design Development

5 Lighting Specification of nominated energy efficiency lighting types and automated controls

Building Services Engineer

Design Development

6 Renewable Energy System

Not proposed Building Services Engineer

Design Development

7 Rainwater Harvesting

Design and specify rainwater harvesting system including toilet flushing and automated irrigation system

Services Engineer(s) and Landscape Consultant

Design Development


8 Water Efficiency Specify fixtures in accordance with nominated WELS star rating

Development Manager Design Development

9 Bicycle Facilities Specify on plans Architect Design Development

10 Operational Waste Management

Specify bin and associated waste management equipment in line with WMP and SMP


11 Construction Waste Minimisation

Prepare construction waste minimisation plan

Builder Pre-Construction

12 Environmentally Preferable Materials

Specify materials in accordance with nominated schedule


13 Commissioning & Maintenance

Commission and tune all equipment in accordance with performance standards and targets Building Users Guide to be prepared for the building occupants and management to implement Building User’s Guide to be given to all residents as part of “welcome packs”

Builder ESD Consultant (EcoResults)

Construction

/Occupancy

Construction

14 Operational Waste Management

Building to operate in accordance with WMP

Owners Corporation Occupancy


Snapshot of ESD principles and objectives within the design

Average NatHERS energy ratings for sample dwellings rated is 6 stars

This has been achieved for the sample of preliminary energy ratings conducted

The highest rating is 6.8 stars and the lowest is 5.4 stars

Natural ventilation to all habitable rooms in dwellings

Natural ventilation allows for passive cooling in summer – openable windows

Design maximizes habitable room usable space

Efficient floor plans minimize materials required for building and total volume of area to be heated

and cooled – average net conditioned area of sample dwellings rated is 104.8m2

Site designed to reduce water usage and increase stormwater quality

All runoff from building roofs is to be drained into rainwater tank(s) with a total combined capacity

of 257,000L dedicated to reuse toilet flushing

STORM score is 100%, meeting the current best practice benchmark for urban pollutant loads

Efficient lighting features

LED or other high efficiency lighting to be used throughout dwellings

Transport

Development is 250m to the nearest bus stop and is near bike and walking paths

Close proximity to amenities such as parks, schools, shopping centre and medical facilities

This encourages occupants to minimize the use of cars, thus reducing CO2 emissions

130 secure bicycle parking spaces located on the basement level


10 Key Sustainable Building Principles Addressed:

1. Indoor Environment Quality (IEQ)

Clause 22.13-2 Objectives:

to achieve a healthy indoor environment quality for the wellbeing of building occupants, including the provision of fresh air intake, cross ventilation, natural daylight, external views and appropriate levels of lighting

to achieve thermal comfort levels with minimised need for mechanical heating, ventilation and cooling

to reduce indoor air pollutants by use of materials with low toxic chemicals, minimal off-gassing and production of allergens

to reduce reliance on mechanical heating, ventilation, cooling and lighting systems

to minimise noise levels and noise transfer within and between buildings and associated external areas

Issue Design Response Drawing reference

Natural Ventilation

All habitable rooms feature windows/doors with openability to enable good ventilation and passive cooling for the occupants

Show window openings on elevation drawings

Thermal Comfort

Refer to comments on BCA energy efficiency/energy rating below in Section 2. The NatHERS energy rating is a measure of thermal comfort, i.e. how much energy is required to heat or cool to keep a dwelling comfortable

Refer to comments on efficient shading, passive solar design and glazing treatments below in Section 2

Show eaves/shading devices on plans and elevations

Acoustics Acoustic rating will apply to timber floors and party walls

Concrete flooring on the ground level reduces noise from neighbouring dwellings

Natural Daylight

Refer to natural daylight comments below in Section 2

Describe glazing colour on elevation drawings

Hazardous Materials & VOC

Low VOC paints to be used throughout the development

Note on plans

External Views Townhouses On the ground level the townhouses feature external views onto a landscaped courtyard area providing a pleasant outdoor space for the residents to enjoy On the first level townhouses feature external views onto a private balcony which has the potential to host potted vegetation, providing a pleasant space for residents to enjoy (See example below)


Source: www.houzz.com

Loft Style Dwellings On the ground level the dwellings feature external views onto a landscaped area providing a pleasant outdoor space for the residents to enjoy On the first level dwellings feature external views onto a private balcony providing a pleasant space for residents Some of the loft dwellings feature external views from the roof terrace onto the surrounding parks and neighbourhood with the Dandenong Ranges in the distance Apartments On the ground level the dwellings feature external views onto a landscaped area providing a pleasant outdoor space for the residents to enjoy On the first level dwellings feature external views onto a private balcony providing a pleasant space for residents


2. Energy Efficiency


To improve the efficient use of energy, by ensuring development demonstrates design potential for ESD initiatives at the planning stage

To reduce total operating greenhouse gas emissions

To reduce energy peak demand through particular design measures (eg. appropriate building orientation, shading to glazed surfaces, optimise glazing to exposed surfaces, space allocation for solar panels and external heating and cooling systems)


BCA Energy Efficiency requirements exceeded

Each dwelling will provide a 5 star instantaneous gas hot water system, 5 star electric cooling and heating and LED lighting throughout. EcoResults also recommends a dishwasher with minimum WELS and Energy Ratings of 4 stars to be installed The dwellings will meet the BCA requirement of an average NatHERS rating of 6 stars per dwelling. Based on initial NatHERS modelling of 9 dwellings, EcoResults has determined the specifications required to achieve an average of 6 stars, meeting the minimum required by the BCA. The lowest rating in the sample group is 5.4 stars and the highest is 6.8 stars Please note that the sample ratings included are from dwellings with an earlier internal design layout. The Masterplan is largely unchanged. EcoResults is confident that the design as shown on the current drawings for submission are thermally similar to the design at the time that the sample ratings were conducted

Final ratings will be completed at building approval stage, once construction information has been finalised, however a minimum average of 6 stars will be achieved. Refer to the appendix for the results of the energy ratings conducted on these dwellings, and the specifications required to achieve the ratings

Note these appliance types, ratings and other info on plans

Passive Solar Design The ground floors will be concrete slabs, which has a high thermal mass and will therefore store passively gained heat from daytime sun and release it during evening hours

Large glazed doors to the private open spaces will facilitate passive ventilation cooling in summer

Insect screens are recommended to encourage natural ventilation by occupants

Show doors on elevation drawings


Efficient Shading

North facing glazing Most of the north facing glazing features an overhang/balcony reducing unwanted solar heat gains during the summer months whilst allowing passive solar heat gains during the winter months EcoResults recommends that all remaining north facing glazing to all habitable rooms feature an eave like device to effectively reduce unwanted solar heat gains during the summer months whilst allowing passive solar gains during the winter months

When installed directly above the window head, the projection of the eave-like device should be equal to 45% of the window height, and extend past the opening for an equal distance in both directions

Source: Your Home Technical Manual

West facing glazing EcoResults recommends all west facing glazing feature internal blinds with a reflective outer coating to reduce unwanted solar heat gains from the setting sun during the summer months (see image below)

Source: www.helioscreen.com.au

Show on plans


Glazing Treatments The precise specifications of the window frames and glazing will be finalised in conjunction with the energy ratings or building approval

Aluminium frames with double glazing to be used as a minimum to ensure the rating meets the BCA requirements

These windows reduce heat loss through the windows in the cooler seasons and nights

Efficient Building Geometry

Efficient floor plans minimize the materials required for construction as well as the total volume of area to be heated and cooled – the average net conditioned floor area of the sample dwellings thermally assessed is 104.8m2

Hot Water System

A 5 star gas instantaneous hot water system will be provided. These produce lower emissions compared to conventional hot water services

Indicate plant location, size and minimum energy rating on plans

Energy Sub-Metering All of the dwellings will feature their own electricity and gas meter, which incentivises energy efficiency for occupants

Show location of meters on plans

Natural Daylight

All habitable rooms feature direct (not borrowed) openings for natural daylight

Describe glazing colour on elevation drawings

Efficient Lighting LED downlights and other high efficiency light fittings will be used throughout (not incandescent or halogen)

Note on plans

Efficient HVAC system Minimum 5 star room specify heating and cooling systems will be used for HVAC for dwellings

Indicate HVAC location, type and energy rating on plans


3. Water Resources


to improve water efficiency

to reduce total operating potable water use

to encourage the collection and reuse of stormwater

to encourage the appropriate use of alternative water sources (e.g. grey water)


Minimising Main Water Demand

The development will provide the following:

5 star WELS rated basin taps

4 star rated toilets

Water efficient shower heads (flow between 7.5 and 9.0 L/min)

Indicate tap, toilet and shower head specs on plans

Water Re-use (e.g. Stormwater and Greywater)

Rainwater tanks (RWTs) with a total capacity of 257,000L will store stormwater for re-use in the flushing of all toilets and, if practicable, irrigation system (Refer to Appendix for detailed breakdown)

Show tank(s) on plans, as per detailed requirement in Appendix

Water for Toilet Flushing

All toilets to dwellings to be provided with water from RWTs

4 star WELS rated toilets will reduce mains flushing demand

Indicate rain water tank’s location and size on plan

Provision of Water Meter

All dwellings are to have individual water meters, which will have the effect of incentivising water efficiency for occupants

Indicate water meter location on plans

Landscape Irrigation EcoResults recommends that any external taps for irrigation be supplied with water from the rainwater tanks, however this is not required to achieve the STORM score

Show on landscaping plan if applicable


4. Stormwater Management


to reduce the impact of stormwater run-off

to improve the water quality of stormwater run-off

to achieve best practice stormwater quality outcomes

to incorporate the use of water sensitive urban design, including stormwater reuse


Minimise Watercourse Pollution (STORM rating)

Please note that the proposed stormwater treatment and Water Sensitive Urban Design (WSUD) measures as outlined below shows a series of measures that could be used to achieve compliance. However this may change once a detailed Civil design has been done later in the project. Best practice for Stormwater Quality will be achieved and verified by STORM or MUSIC. This may be done in part, by payment of a contribution or levy for WSUD treatment to the relevant Water Authority Stormwater quality for this project is assessed as performing at 100%, meeting the current best practice design for urban pollutant loads See appendix for details of treatment requirements

Enclose STORM printout

Discharge to Sewer Rainwater tanks with a total capacity of 257,000L ensures that most water is used onsite, including in all toilet flushing. This subsequently receives sewerage treatment prior to discharge

Stormwater Diversion/Filtration

Runoff from the building roofs provide adequate run-off to rainwater tanks, therefore providing a reliable water supply. This will reduce the amount of pollution reaching local creeks and rivers, and ultimately Port Phillip Bay

STORM calculation shows reliability of tank water supply of over 80%

In addition some driveway runoff may be filtered/treated by Enviss Sentinel pits which as raingarden replacements

Show tank location, source, capacity & usage

Stormwater Detention & Re-use

Treatment of stormwater may be through onsite detention in rainwater tanks and subsequent re-use in toilets. (See Appendix for breakdown)

Show tank location, source, capacity & usage

Stormwater Treatment

The roofs provide adequate run-off to rainwater tank(s), therefore providing a reliable water supply. Water may be reused in toilet flushing and, if possible, irrigation

Site Permeability The proposed development will cover a large percentage of the site and will implement WSUD features, where possible, which will reduce the effects of site impermeability


Explanation of the STORM assessment scoring system The information from the development plans that relates to stormwater runoff (impermeable areas and

actual or potential treatment measures) is analysed by the STORM assessment rating tool.

The assessment tool then compares the proposal against the Urban Stormwater Best Practice

Environmental Management Guidelines (BPEG), CSIRO/Victoria Stormwater Committee 1999.

STORM scores are scored on a scale from 0 to 100, where:

0 means that the development provides no treatment for stormwater that falls on impermeable

areas on the site

100 means that the development meets the best practice performance objectives for suspended

solids, total phosphorus and total nitrogen, as set out in the Urban Stormwater Best Practice

Environmental Management Guidelines, Victoria Stormwater Committee 1999 as amended.

Currently, these water quality performance objectives require:

Suspended Solids - 80% retention of typical urban annual load

Total Nitrogen - 45% retention of typical urban annual load

Total Phosphorus - 45% retention of typical urban annual load

Litter - 70% reduction of typical urban annual load


5. Building Materials (not listed in Clause 22.13)

Objectives:

to minimise the environmental impact of materials used by encouraging the use of materials with a favourable lifecycle assessment based on fate of material, recycling/reuse, embodied energy, biodiversity, human health, environmental toxicity, environmental responsibility

Issue Design Response Dwg

reference

Embodied Energy (EE) of Materials

The following will be used based on discussions with the architect and the materials shown on the planning drawings:

Timber used for internal wall framing is selected. See notes under sustainable timber below regarding timber used in framing

Concrete as specified for some of the floors, contains high embodied energy, which has a negative impact, however the passive design benefits, e.g. thermal mass, can offset this by reducing energy usage during the life of the structure

Steel sheet, such as that specified for the roofs, also has a high embodied energy, however it lends itself to recycling at the end of the building life cycle, and Colorbond/Zincalume contains 20% recycled content and is 100% recyclable

Light weight cladding, such as fibre cement sheeting contains low embodied energy is highly durable and requires low maintenance

Refer to the Greenlist for examples of products and suppliers that are considered sustainable. The Greenlist can be found at: www.sustainablesteps.com.au/pdf/MorelandGreenlist.pdf

Note on plans

Maintenance/ Durability

Aluminium framed windows, steel sheet roofing, FC sheeting and concrete are considered to be low maintenance. Durability reduces the need for replacement of materials during the lifecycle of the building

Note on plans

Sustainable Timber

Timber used in framing is generally sourced from sustainably managed Australian plantations. Timber framing produces much less greenhouse gas emissions during processing than other framing materials. It can have a negative embodied energy (its production and transportation has resulted in a net reduction in atmospheric carbon dioxide

Timber used for cladding, lining and fitouts should be FSC certified or equivalent. A list of suitable timbers can be found at: www.sustainablesteps.com.au/pdf/MorelandGreenlist.pdf

Note on plans

Reuse of recycled materials

Concrete containing 20% recycled or industrial by-product content (refer to Greenlist for examples) is recommended Colorbond/Zincalume roof sheeting as will most likely be used contains 20% recycled content and is 100% recyclable

Note on plans

Toxicity Low VOC paints to be used throughout the development Note on plans

http://www.sustainablesteps.com.au/pdf/MorelandGreenlist.pdf



PVC Minimisation Not proposed for this development

Refer to the materials Greenlist for examples of products and suppliers that are considered sustainable. The Greenlist can be found at: http://www.sustainablesteps.com.au/pdf/MorelandGreenlist.pdf



6. Transport


to ensure that the built environment is designed to promote the use of walking, cycling and public transport in that order

to minimise car dependency

to promote the use of low emissions vehicle technologies and supporting infrastructure


Proximity to amenities, public transport and other offsite facilities

The location is in the Wheelers Hill neighbourhood in Melbourne. The nearest bus stop is Stop 754 located 250m from the site

The following are within 1km of the site:

o Numerous restaurants, cafes and bars o Woolworths Wheelers Hill (supermarket) o Columbia Park o Jells Park Preschool o Jells Park Primary School o Caulfield Grammar School o National Pharmacies o Australia Post –Wheelers Hill LPO o CBA ATM (branch)

The following are within 2.4km of the site:

o Coles (supermarket) o ALDI (supermarket) o Maria Montessori Preschool Centre o Wheelers Hill Primary School o NAB ATM o ANZ Branch Brandon Park o Westpac Bank

Chadstone Shopping Centre is located 9.6 km away:

o Reading Cinemas o ABC Shop o Health insurance providers o Coles Supermarket o Escape Travel o Homewares, fashion, sports and electrical

retailers o Kmart | Myer | David Jones | Target |Harris

Scarfe department stores o Optus | Foxtel | Telstra | RACV o Banks | Financial Institutions

Walk score Walk score for this location is 73 (Very Walkable) Most errands can be accomplished by foot


Commuter statistics to Melbourne CBD

By car: 25.5 km, 30 minutes (25 minutes during rush) By bicycle: 27.5 km, 54 minutes By bus: 4 minute walk (250m) to Ajax Road/Jells Road Stop 754 to Flinders Street Station (See Route information below)

(Source Public Transport Vic)

Providing Convenient & Secure Bike Storage

The development will be providing 130 bike spaces located on the basement level 2of the development These spaces are aimed at encouraging the use of alternative transport, thus reducing traffic congestion and pollution

Shown on plans


7. Waste Management


To promote waste avoidance, reuse and recycling during the design, construction and operation stages of development.

To ensure durability and long-term reusability of building materials.

To ensure sufficient space is allocated for future change in waste management needs, including (where possible) composting and green waste facilities

Issues Design Response Drawing reference

Storage Spaces for Recycling and Green Waste

Refer to Waste Management Plan prepared by others

Construction Waste Management

To help minimise waste generated during the construction phase, standard size materials and pre-fabricated materials will be used where possible. This will reduce the amount of off-cuts and on-site waste production During the construction of the proposed development, skips containing construction waste will be sorted into recyclable categories – plastics and cardboard packaging, metal offcuts and cable, concrete and rubble. Only non-recyclable products are be sent to landfill A commitment has been made to recycle or reuse at least 80% of the existing building through the demolition phase. In general, most demolition companies recycle as much material as possible as the most economic option

For example:

Steel and metal items including roof sheet, window frames and other steel framing materials are completely recycled

Brickwork, concrete slabs and asphalt are crushed and used as materials for road works

Any bricks in good enough condition to be reused may be cleaned and re-sold as garden/paving supplies

Minor components of the buildings that are unable to be recycled (such as fixtures and fittings) are sent to landfill as a last resort

Operation Waste Management Plan

Refer to Waste Management Plan prepared by others


8. Urban Ecology


to protect and enhance biodiversity within the municipality to encourage the planting of indigenous vegetation

To provide environmentally sustainable landscapes and natural habitats, and minimise the urban heat island effect

To encourage the retention of significant trees

To encourage the provision of space for productive gardens, particularly in larger

residential developments


Reuse of Already Developed Land

A car park and multi storey building currently occupies the site and is to be demolished

Source: www.realestate.com.au

Maintaining & Enhancing Ecological Value

The existing site has some ecological value in its current state. The site has the potential to greatly enhance the urban ecology with planting opportunities on the ground level in the courtyards and on the balconies and roof terraces

Show on landscaping plan, if applicable

Creating Resident Amenity and Biodiversity

It is envisaged that with landscaping this will improve the overall ecological and aesthetic value of the development These shrubs and trees can be of various sizes and heights providing visual interest as well as “softening” the lines of the building

Show on landscaping plan, if applicable


The balconies and roof terrace of the dwellings provide a space for potted vegetation, thus increasing biodiversity by providing a green environment and a pleasant open space for the residents and visitors to enjoy In addition, with the increased vegetation, less CO2 is released into the atmosphere

Outdoor Communal Facilities

Not proposed for this development


9. Innovation (not in Clause 22.13)

Objectives:

to encourage innovative technology, design and processes in all development, which positively influence the sustainability of buildings


Significant Enhancements to Environmental Performance

Rainwater tanks will store all roof runoff for recycling in toilet flushing

80% of demolition will be recycled or reused

5 star rated WELLS efficient fixtures

Good Passive Design Approach

All habitable rooms feature openable windows/doors to enable passive ventilation and cooling

New technology Low VOC paints have been specified

Alternative transport use encouraged

Location is close to public amenities and public transport options to discourage use of conventional vehicles


10. Ongoing Building & Site Management (not in Clause 22.05)

Objectives:

to encourage a holistic and integrated design and construction process and ongoing high performance


Building User’s Guide that Explains ESD Principles

N/A – Not generally required for townhouse developments, however we would recommend it as a value add to assist occupants of the home manage and maximise the energy and water efficiency of their home. A BUG can enable them to minimise their environmental impact including energy and water usage Please consult EcoResults for assistance with the production of a plain English Building Users’ Guide

Operation Waste Management Plan

Please refer to Waste Management Plan prepared by others


Conclusion Our sustainable building consultants have found the proposal to meet, and in most areas exceed by a

considerable margin, the benchmarks set out by the STORM assessment tool (see appendix for

breakdown).

The project has included a range of other ESD features over and above those measured by the STORM benchmarks, as discussed with reference to the objectives of the 10 key building sustainability principles above. These features combine significantly to further enhance the energy efficiency of the development, lessen its environmental impact and to encourage sustainable lifestyle choices by the occupants of the building during its life-cycle. The development will meet the objectives and application requirements of the City of Monash objectives if it is constructed in accordance with the application drawings and the measures detailed in this SMP. The development is likely to meet the current benchmarks set out by SDAPP. We are not able to verify this

completely due to the unavailability of the BESS tool to assess projects within the City of Monash (see

comments in introduction). This will be enabled by the careful selection of water efficient taps and fittings,

energy efficient heating and cooling appliances, building materials with low embodied energy and other

sustainability features as outlined under the 10 sustainability categories.

Legal statement This Sustainable Management Plan (SMP) has been prepared in conjunction with FirstRate5, which have

been used as Sustainable Design Assessment in the Planning Process (SDAPP) assessment tools.

The development is assessed to achieve the stated ratings only if it is built in accordance with the

specifications listed in the attached assessment tool printouts, and according to the plans provided by the

designer to EcoResults. This report must be read in conjunction with all assessment tool printouts.

Any variation to the design or construction of the development will deem this SMP void unless the

variations are assessed by EcoResults. Please contact EcoResults if there are any questions or variations

that are required.

EcoResults is not responsible for any loss or damage arising directly or indirectly from the use of this SMP

in circumstances where there has been a variation to the design or construction of the development, which

has not been assessed by EcoResults. To the extent permitted by law, EcoResults excludes all liability,

including any liability for negligence or for any loss including indirect or consequential damages, arising

directly or indirectly from the use of this SMP in circumstances where there has been a variation to the

design or construction of the development, which has not been assessed by EcoResults.


Appendix

Why is sustainable development needed? Buildings have the potential to greatly affect the environment of their immediate surroundings, as well as

the atmosphere globally. According to recent studies (COAG, 2009), buildings account for approximately

20% of Australia’s greenhouse gas emissions, and there is overwhelming evidence that global warming

contributed to by such emissions will increasingly affect the earth’s environment, climate and the quality

of life of those living on it.

The design of any new development has the potential to either exacerbate or lessen the impact on the

environment, for better or for worse. There are many design features that may be included (many with

little or no additional monetary cost) to reduce the environmental impact of the end product, thus creating

a more sustainable outcome for the life-cycle solution of the development.

In addition, using energy unnecessarily creates added cost in both the construction and occupancy of the

building, as energy prices rise, and in view of the tax on carbon emissions, and the future emissions trading

scheme. By saving energy, costs for the developer and building occupant can be reduced.

STORM assessment tool The Council Alliance for a Sustainable Built Environment (CASBE) within the MAV (Municipal Association of

Victoria) has developed a broad program called 'Sustainable Design Assessment in the Planning Process'

(SDAPP). The SDAPP Program refers to the consistent inclusion of key environmental performance

considerations into the planning permit approvals process in order to achieve more sustainable outcomes

for the long-term benefit of the wider community.


Stormwater quality (STORM Assessment)

STORM rating required: 100%

STORM rating for project: 100%

Stormwater quality for this project is 100%, meeting the current best practice design for urban pollutants

Please note that the proposed stormwater treatment and Water Sensitive Urban Design (WSUD) measures

as outlined below shows a series of measures that could be used to achieve compliance. However this may

change once a detailed Civil design has been done later in the project. Best practice for Stormwater Quality

will be achieved and verified by STORM or MUSIC. This may be done in part, by payment of a contribution

or levy for WSUD treatment to the relevant Water Authority

The following are detailed requirements to the current method used to achieve the STORM score:

Runoff from the roofs of all apartment buildings (610m2) is to be drained into rainwater tank(s) with

180,000L dedicated to reuse

o Tanks must be connected so that they operate in series as if they were one tank

o All toilets in the apartments to be supplied with water from the rainwater tank(s)

o It is recommended (but not required to achieve the STORM rating) to connect external

irrigation tap(s) to the rainwater tank(s)

Runoff from the roofs of each townhouse (125m2 per dwelling) is to be drained into a 3,500L

rainwater tank connected to all toilets within the townhouse

o Tanks must be connected so that they operate in series as if they were one tank

o All toilets in the apartments to be supplied with water from the rainwater tank(s)

o It is recommended (but not required to achieve the STORM rating) to connect external

irrigation tap(s) to the rainwater tank(s)

Refer to Melbourne Water Rainwater Tank Fact Sheet for additional information

The rainwater from a portion of driveway paving with a minimum area of 300m2 is to be collected

and discharged via a gravity fed system into a minimum of 4 Enviss Sentinel pits (shown as 4.4m2 of

100mm raingardens on STORM printout)

o A maximum of 75m2 is to be drained into each pit as per manufacturer’s specifications

o Refer to the Enviss Sentinel technical and product information below (including raingarden

equivalency table) for additional information on how to install and maintain the pits

Please note that the detailed, site specific design of WSUD measures should be undertaken by a

suitably qualified person

Refer to Maintenance Program for WSUD measures below

Please note that the proposed stormwater treatment and Water Sensitive Urban Design (WSUD)

measures may change once a detailed Civil design has been done later in the project. However best

practice for Stormwater Quality will be achieved and verified by STORM or MUSIC


Maintenance program for WSUD measures rainwater tanks The project’s hydraulic/services engineers will be responsible for the design of the tanks and

rainwater reticulation, shall inform the building facility manager and/or owners corporation in

writing, of the required maintenance tasks to keep the system operational including:

o Regular inspections of the tank(s), pump(s), reticulation system and toilets to ensure that

the system is operating for toilet flushing as designed

o Periodic cleaning and major maintenance of the tank(s), pump(s) and reticulation system to

ensure the long term viability of the system

The building facility manager and/or owners corporation shall include on their building

maintenance schedule the required maintenance tasks specified by the hydraulic/services

engineers at the required intervals

Maintenance program for WSUD measures for Enviss Sentinel pits The project’s hydraulic/services engineers will be responsible for the design of the Enviss Sentinel pits

and stormwater reticulation, shall inform the building facility manager and/or owners corporation in

writing, of the required maintenance tasks to keep the system operational including:

o Clean grate and sediment trap annually

o Replace filtration cartridge every 4 years

The building facility manager and/or owners corporation shall include on their building

maintenance schedule the required maintenance tasks specified by the hydraulic/services

engineers at the required intervals

For further information refer to and Enviss Sentinel fact sheets attached


Preliminary NatHERS Thermal Performance Assessment Sample energy ratings for a variety of dwellings:

Dwelling Types Net conditioned floor area

Heating MJ/m2

Cooling MJ/m2

Total MJ/m2 Star Rating

Town House A 144.4 111.0 12.3 123.2 6.1 Upper Module B3 Facing East 114.6 90.4 17.7 108.2 6.4 Lower Module B3 Facing East 107.1 101.0 22.6 123.6 6.0

Apartment A 108.0 123.5 21.6 145.1 5.4 Upper Module B3 Facing West 116.8 95.5 21.4 114.5 6.2 Lower Module B3 Facing West 110.7 137.6 10.1 147.7 5.4 Apartment D 91.6 81.9 14.4 96.2 6.8

Apartment C 87.7 92.3 37.9 130.2 5.9

Loft C 58.8 86.3 52.8 139.2 5.6

Average 104.8 102.2 23.4 125.3 6.0

To achieve the ratings above, construction was based on the following:

NatHERS Energy Rating Specifications for dwellings

Ave Heating Loads: 102.2 MJ/m² | Ave Cooling Loads: 23.4 MJ/m² | Ave Combined Loads: 125.3 MJ/m²

Average Star Rating: 6.0 Stars

6 Star Benchmark for this climate zone (Moorabbin): 125 MJ per m² annually

Element Specifications to achieve the required NatHERS rating

Roofs & Ceilings

Metal Roofs 6.0 Bulk Insulation

Ceiling Connected To Dwelling Above

R3.0 Bulk Insulation

Recessed downlights Downlights have been modelled according to the default values under

NatHERS protocol - sealed and non-ventilated type has been assumed

Walls

Lightweight Walls R2.5 Bulk Insulation

Internal Walls connected To Garage


Party Walls R2.0 Bulk Insulation on both sides of party wall


Floors

Concrete Slab on Ground No added insulation

Floors Directly Above A Car Parking Area

R2.0 Bulk Insulation for type 9 dwellings

No add insulation for other dwellings types

Floors Directly Above An External space


Other Suspended Floor Areas

No added insulation

External Glazing

All Glazing

All sliding and fixed glazing to have combined (frame and glass) values of

U=4.3 and SHGC=0.53

All other glazing to have combined (frame and glass) values of U=4.3 and

SHGC=0.47

These values were achieved in FirstRate5 using Aluminium frame, double

glazing, air filled, clear glass, high solar gain low-e windows

FR5 Glass Codes ALM-004-03 & ALM-003-03

Glazing Notes

The above U and SHGC values were achieved in FirstRate5 using the FR5

“default” glazing type listed, however they may be able to be achieved

with lower spec windows

Any windows may be used as long as the U-value does not exceed the

values listed and the SHGC is within a 5% tolerance above or below the

values listed

Refer to FirstRate5 Thermal Performance Assessment energy rating screenshots for additional information

Please note that the sample ratings included are from dwellings with an earlier internal design layout. The Masterplan is largely unchanged. EcoResults is confident that the design as shown on the current drawings

for submission are thermally similar to the design at the time that the sample ratings were conducted


Wind Frequency Analysis


Walk Score Information

Commuting to Melbourne by car


Travel Time Maps These maps show how far you can travel by car, bike and foot from 855-869 Ferntree Gully Road, Wheelers

Hill

Walk Score Information | 30 minutes by car travel time map

Walk Score Information | 10 minutes by bike travel time map


Walk Score Information | 10 minutes by foot travel time map


Energy Ratings | Preliminary Thermal Performance Assessments

FirstRate5 | 1 Townhouse A


FirstRate5 | 3 Upper Module B3 Facing East


FirstRate5 | 4 Lower Module B3 Facing East


FirstRate5 | 6 Apartment A


FirstRate5 | 7 Upper Module B3 Facing West


FirstRate5 | 8 Upper Module B3 Facing West


FirstRate5 | 9 Apartment D


FirstRate5 | Apartment C


FirstRate5 | 12 Loft C

See below for assessment tool printouts (9 pages): STORM printout (1 page) Melbourne Water Rainwater Tank Fact Sheet (2 pages) Enviss Sentinel Brochure (4 pages) Enviss Sentinel Raingarden Equivalency Table (2 pages)

Apartment building roofs B

1,090.00 Rainwater Tank 45,000.00 80 164.00 82.00

Apartment building roofs D

1,090.00 Rainwater Tank 45,000.00 80 164.00 82.00

Driveways (open to sky) 2,150.00 None 0.00 0 0.00 0.00

Landscaped areas over basement (open to sky)

600.00 Buffer Strip 400.00 0 66.00 0.00

Treated driveways (open to sky)

300.00 Raingarden 100mm 4.40 0 121.95 0.00

Apartment building roofs A

1,090.00 Rainwater Tank 45,000.00 80 164.00 82.00

Apartment building roofs C

1,090.00 Rainwater Tank 45,000.00 80 164.00 82.00

Townhouse Roofs 2,760.00 Rainwater Tank 77,000.00 70 113.40 94.20

Pathways inbetween apartments (open to sky)

300.00 None 0.00 0 0.00 0.00

Remaining impermeable areas over basement (open to sky)

550.00 None 0.00 0 0.00 0.00

Treatment %Occupants /Number OfBedrooms

TreatmentArea/Volume

(m2 or L)

Treatment TypeImpervious Area(m2)

Description

STORM Rating Report

Municipality:

Address:

Assessor:

Development Type:

Allotment Site (m2):

MONASH

855-869 Ferntree Gully Rd

Wheelers Hill

VIC 3150

Marius Andrasciuc

Residential - Multiunit

15,866.00

Tank WaterSupply

Reliability (%)

Rainfall Station: MONASH

STORM Rating %: 100

TransactionID: 461062

Program Version: 1.0.0Date Generated: 02-May-2017

Most people install a rainwater tank primarily to harveststormwater from their roof and conserve their mains wateruse. In addition to conserving water, a rainwater tank alsohelps treat stormwater and protect local streams from highstorm flows by reducing the volume of stormwater andquantity of pollutants coming from a house block that wouldotherwise be delivered to the local stream.

What do I use my tank water for?

Garden irrigation, laundry and toilet flushing consume much ofour home water use. In most cases these uses do notrequire the water to be of drinking quality standard that isprovided by mains water. By plumbing your rainwater tank toyour toilet or laundry and substituting these mains waterneeds with the rainwater harvested from your roof, you canconserve mains water whilst reducing the amount ofstormwater that enters our streams.

Melbourne Water 131772Melbourne Water Corporation, PO Box 4342, Melbourne Victoria 3001

Rainwater TanksStormwaterSensitiveHomes

How does a rainwater tank help protect our local streams?

10%kitchen

15%laundry 20%

toilet

20%bathroom35%

gardens& lawns

A typical home usesapproximately 250,000 litres ofwater each year.

Rainwater Tanks Stormwater Sensitive Homes

Why can’t I use my rainwater tank for my gardenalone?So that your tank is not too full to collect rainwater when it rains,you need to be consistently using your tank water all year round.

If tank water is used for your garden alone, your tank will remainfull and unused during the winter months when your garden doesnot require watering. With a full tank, your capacity to captureand store the regular winter rainfall and thus benefit the localwaterway is significantly reduced.

By plumbing your rainwater tank to your toilet or laundry, yourtank water is used consistently all year round allowing rainfall torefill the tank more often especially in winter. This ultimatelyreduces the volume of stormwater that is delivered to the streamand the quantity of pollutants that are washed with it.

The Victorian Government has recognised the importance ofplumbing your tank to your toilet and offers a cash rebate for theinstallation of connected rainwater tanks (www.dse.vic.gov.au). Inaddition, a 5 star energy standard has been introduced thatrequires a connected 2000Lt rainwater tank or solar hot waterservice to be installed in all new houses and apartments (class 1and 2 buildings). (www.buildingcommission.com.au).

How do I choose a rainwater tank?The most important thing to consider when choosing a rainwatertank is to first identify what you want from your rainwater tank.The size and type of rainwater tank you choose will varydepending on your homes water needs and the reliability you seekfrom your rainwater tank supply. There are a number of factorsthat may influence this and the following questions should beconsidered when planning your tank installation:

• what is the water demand of your home?• how many people are living in your home?• what is your intended use of rainwater?• what reliability do you want from your tank?• what is the total area of roof draining into your tank?• what is average rainfall of your area?• do you need extras like a pressure pump, the ability to top up

your tank with drinking water, a backflow prevention device ora first flush device?

• are the materials used on your roof suitable to collectrainwater?

• are there physical constraints of your property that mayinfluence the type of rainwater tank you need?

Once you know how much water you can collect and how muchwater you are going to use then a tank size can be selected toprovide the reliability of water supply that you need.

Types of rainwater tanksRainwater tanks come in a variety of materials, shapes and sizesand can be incorporated into building design so they don’t impacton the aesthetics of the development. They can be located aboveground, underground, under the house or can even beincorporated into fences or walls.

There are three main tank systems to consider and a variety ofmaterials to choose from. Features of these are outlined belowand in the pictures above:

Tank systems:

Gravity Systems - rely on gravity to supply rainwater to thehousehold and the garden by placing the tank on a stand at height.

Dual Supply Systems - top your rainwater tank with mains waterwhen tank level is low ensuring reliable water supply.

Pressure Systems - use a pump to deliver rainwater to householdand garden fixtures.

To reduce the amount of sediment and debris entering a tank, meshscreens and ‘first flush diverters’ can be fitted. A screen will filterlarge debris such as leaves and sticks while ‘first flush diverters’store the ‘first flush’ of the rainfall that carries the sediment andother pollutants initially washed from your roof (see figure below).

Costs & rebatesCosts of installing a tank vary however a standard 2000Lt tank orbladder will cost around $1000.

Additional plumbing and/ or.....

• Above ground tanks cost approximately $250 for a 500 litre tank.• Below ground tanks cost between $300-$600 per 1000 litres of

storage• The costs of pumps start from $200.Additional plumbing and/or excavation costs vary on intendeduse, pipe layout, materials and site accessibility.

The Victorian Government offers a total rebate of $300 for theinstallation of a rainwater tank that is plumbed to toilet andconnected by a licensed plumber. For further details refer to theDepartment of Sustainability and Environment websitewww.dse.vic.gov.au.

For more information:Melbourne Water’s Water Sensitive Urban Design Website:www.wsud.melbournewater.com.au

Municipal Association of Victoria Clearwater Program:www.clearwater.asn.au

Water Sensitive Urban Design in the Sydney Region: www.wsud.org

Urban Stormwater Best Practice Environmental Management Guidelines,Victorian Stormwater Committee, CSIRO publishing, 1999.

WSUD Engineering Procedures: Stormwater, Melbourne Water, 2005.

Delivering Water Sensitive Urban Design: Final Report of Clean Stormwater– a planning framework, ABM, 2004.

tank

from roof to tank

First flush diverter added to a tank

of 2

Technical Bulletin

envissSentinelTM

Assumptions: • Hydraulic conductivity is 2000mm/hr • Ponding depth 50mm

(flush with surface)

April 2015

envissSentinelTM Equivalency for STORM Calculator Raingardens Melbourne Water has an on-line design tool - known as STORM Calculator - to assist in assessing the stormwater treatment requirements for small-scale developments within Melbourne. The calculator uses basic input information about the subject catchment and assesses the relative compliance of the proposed solution in meeting the Melbourne Water ‘Best Practice Environmental Management (BPEM) Guidelines – TSS – 80%, TP – 45%, TN – 45%. The output is presented as a rating (%) relative to these standard target figures. Treatment measures available for selection include rainwater tanks, ponds, wetlands, infiltration, raingardens & buffer strips. Rocla has undertaken a comparative assessment of its envissSentinel

TM Media Filter (using MUSIC V6.1) so as to provide a further option for

design consultants to achieve desired treatment outcomes. The following figures show relative equivalencies of the envissSentinel

TM Media Filter to the

Storm Calculator’s raingarden estimate.

Raingarden Assumptions: • Filter surface area is equal to

ponding area • Filter depth is 0.5m • No soil exfiltration • Hydraulic conductivity is 200mm/hr

Storm Calculator Assumptions: 100% rating = BPEM Guidelines

• 80% TSS • 45% TP • 45%TN

General MUSIC V6.1 Assumptions: MUSIC defaults are used except where replaced by Storm Calculator inputs.

of 2

Technical Bulletin

Typical Surface Inlet Arrangement

The comparison makes various assumptions about the options modelled (stated above), but key to the comparison is that the envissSentinal

TM requires no pre-

designated area be set aside for ponding and functional planting with pits placed directly within paved areas, flush with the surface.

envissSentinalTM

requires only 50mm ponding, which is provided between the permeable paver and the top of the sediment trap

100mm Raingarden* 300mm Raingarden#* EnvissSentinelTM Area (m 2) Area (m 2) (no. of Pits)

0.70 0.57 1

1.05 0.85 1

1.40 1.13 2

2.10 1.70 2

3.15 2.55 3

4.20 3.40 4

5.25 4.25 4

6.30 5.10 5

7.00 5.67 6

* Ponding depth above media surface with a projected area equal to the raingarden area. #* Needs to be positioned where extra ponding depth does not cause loss of serviceability or safety hazard

envissSentinelTM Media Filter Pit

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