Project Proposal: Stormwater Harvesting System - Fitzroy Gardens

This project proposal outlines a stormwater harvesting system, focusing on the Fitzroy Gardens in Melbourne. It begins with an introduction highlighting the scarcity of freshwater resources and the need for optimized water usage. The project aims to provide an alternative freshwater source and reduce environmental impact. The proposal includes a literature review discussing the benefits and challenges of stormwater harvesting, along with relevant guidelines. It details the model components, including catchment, water treatment, storage, and distribution. The methodology covers project planning, design, implementation, environmental impact assessment, and public consultation. Specific tasks involve designing hydraulics, structural and electrical engineering, and landscaping. The proposal also addresses project management, initial assessments, and equipment needed. The conclusion emphasizes the ability of stormwater harvesting to provide an alternative freshwater source, reduce environmental and economic impacts, and protect freshwater supplies. References are provided for further research.

September
2, 2024
1
Project
Proposal
Stormwater Harvesting
System

September 2, 20242
Stormwater Harvesting
System

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Introduction, Background and
Objective
 Freshwater is a scarce resource
 Population growth further stresses the limited
resource
 Pollution and contamination further reduces the
available freshwater.
 This can adversely affect the well being of people.
 Thus use of freshwater should be optimised, its
wastage reduced, and new ways of reusing water
that generally goes to waste.
 Runoffs in the form of Stormwater provides an
ideal solution in urban areas.

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Introduction, Background and
Objective
 Stormwater harvesting has 2 advantages:
 Provides an alternate source of freshwater
 Reduces the ecological impact of stormwater
runoffs as well as depletion of freshwater
reserves.
 OBJECTIVE: Planning a project on
Stormwater harvesting, based on Fitzroy
Gardens, Melbourne Stormwater harvesting
system.

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Literature Review
 Stormwater runoffs can have
contaminants and pollutants
 Proper purification is therefore necessary
before its usage
 The Environmental Protection and
Heritage Council (EPHC) guidelines can
be used for best practices.
 Every year, 174 billion litres of freshwater
is saved by harvesting rainwater alone.

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 Nnadi et al. (2015)
 Stormwater is ideal for irrigation
 However, stormwater should not enter natural water
reserves.
 Hoban et al. (2015)
 Stormwater harvesting can provide an abundant an
alternate source of freshwater.
 Ideally built in close proximity to urban areas
 If not harvested stormwater can cause environmental
damage
 Khan et al. (2016)
 Stormwater ideal for dairy industry
 Productivity of farms can be increased by using
stormwater
 Peterson (2016)
 Stormwater harvesting reduce costs of water
infrastructure, reduce household expenditure of water
and reduces the management costs of stormwater
runoffs

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Model
 Components and steps in stormwater harvesting:
1. Catchment
2. Water diversion
3. Primary screening
4. Buffer storage
5. Transferring water from buffer
6. Water treatment
7. Transferring clean water for storage
8. Clear water storage
9. Transferring clear water
10. Water disinfection and supply rising main
11. Distribution of clear water for use

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Figure 1: A Functional Diagram of
Stormwater Harvesting
Components; (source: Vaisman
2014).

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Methodology
 Project Plan, design and implementation:
 Environmental impact assessment
 Planning and approval
 Public consultation
 Investigation of the site
 Preparing detailed design of the harvesting scheme
 Tasks:
 designing hydraulics such as diversion rate
 detention and storage volume
 structures for inlets and outlets
 pipes and pumps
 mechanical designs for pipes
 pumps and tanks
 structural engineering works
 civil structuring
 electrical engineering works
 treatment processes
 instrumentation and control

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 Project Plan, design and implementation
(contd...)
 landscape architecture
 irrigation designing
 estimation of the construction process
 Project management and reporting
 Management of construction
 commissioning and scheme validation
 scheme performance post commission, audit
and reporting
 Operation and maintenance

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 Initial Assessment and surveys:
 Water plan
 Geotechnical survey
 Soil contamination assessment
 MUSIC modelling
 Statement of Heritage Impact
 Equipments and Tools Needed:
 Gross Pollutant Traps
 Sedimentation Chamber
 Dual Tanks
 Biofiltration Bed
 Plants (Juncus gregiflorus and Juncus procerus )
 Pumps,
 UV Filters
 Irrigation System

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Gantt Chart

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Conclusion
 The stormwater harvesting can help to
provide an alternate source of
freshwater in urban areas
 Harvesting stormwater can also reduce
environmental and economic impact of
stormwater runoff
 Reduces infrastructure costs
 Protects freshwater supplies

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References
 Chandrasena, G.I., Deletic, A. and McCarthy, D.T., 2016. Biofiltration for stormwater
harvesting: Comparison of Campylobacter spp. and Escherichia coli removal under
normal and challenging operational conditions. Journal of Hydrology, 537, pp.248-259.
 Coombes, P.J., Smit, M., Byrne, J. and Walsh, C.J., 2016. Water resources, stormwater
and waterway benefits of water conservation measures for Australian capital cities.
In Proceedings of Conference: Stormwater2016, Stormwater Australia.
 Garcia-Moreno, J., Harrison, I.J., Dudgeon, D., Clausnitzer, V., Darwall, W., Farrell, T.,
Savy, C., Tockner, K. and Tubbs, N., 2014. Sustaining freshwater biodiversity in the
Anthropocene. In The Global Water System in the Anthropocene (pp. 247-270).
Springer, Cham.
 Hoban, A., Mills, K., Tanner, C. and Hamlyn-Harris, D., 2015. Climate change impacts
on stormwater harvesting yields. Water: Journal of the Australian Water
Association, 42(1), p.72.
 Hoban, A., Brown, S. and Tanner, B., 2017. Facing the MUSIC: a review of bioretention
performance.
 Jha, M.K., Chowdary, V.M., Kulkarni, Y. and Mal, B.C., 2014. Rainwater harvesting
planning using geospatial techniques and multicriteria decision analysis. Resources,
Conservation and Recycling, 83, pp.96-111.

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 Khan, M., Fyfe, J. and Hagare, D., 2016. Increasing Dairy Farm Productivity through Stormwater Harvesting,
Resource Recovery and Recycling. Progress Report 3: Preliminary Pond Monitoring.
 Knight, J., 2017. Issues of water quality in stormwater harvesting.
 Lomborg, B., 2018. Resource constraints or abundance?. In Environmental conflict (pp. 125-152).
Routledge.
 Mbanaso, F.U., Nnadi, E.O., Coupe, S.J. and Charlesworth, S.M., 2016. Stormwater harvesting from
landscaped areas: effect of herbicide application on water quality and usage. Environmental Science and
Pollution Research, 23(16), pp.15970-15982.
 Nnadi, E.O., Newman, A.P., Coupe, S.J. and Mbanaso, F.U., 2015. Stormwater harvesting for irrigation
purposes: an investigation of chemical quality of water recycled in pervious pavement system. Journal of
environmental management, 147, pp.246-256.
 Peterson, E.L., 2016. Transcontinental assessment of secure rainwater harvesting systems across
Australia. Resources, Conservation and Recycling, 106, pp.33-47.
 Petersen, L., Heynen, M. and Pellicciotti, F., 2017. Freshwater Resources: Past, Present, Future. The
International Encyclopedia of Geography.
 Reeve, P., Monis, P., Humpage, A., Chow, C., Fabris, R., Van Den Akker, B., Leusch, F. and Keegan, A., 2015.
Quantifying water quality characteristics of stormwater: research project 3015.
 urbanwater.melbourne.vic.gov.au (2018). Fitzroy Gardens Stormwater Harvesting case study. [online] City
of Melbourne Urban Water. Available at: http://urbanwater.melbourne.vic.gov.au/projects/water-capture-
and-reuse/fitzroy-gardens-stormwater-harvesting-project/ [Accessed 23 Apr. 2018].
 Vaisman, I., 2014. Capturing the potential of stormwater. Water: Journal of the Australian Water
Association, 41(3), p.40.

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Thank You