An overview of on-site retention and detention policies for urban stormwater management in the Greater Western Sydney Region in Australia

Sterren, Marlène van der; Rahman, Ataur; Shrestha, Surendra; Barker, Glenn; Ryan, G.L.

doi:10.1080/02508060903115175

Cited by 20 publications

(7 citation statements)

References 10 publications

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“…They carried out the financial viability analysis of the RWHS in single and multi-family buildings and found that in single-family households, an expected payback period would be between 33 and 43 years depending on the tank size, and for a multi-family, building a payback period would be as high as 61 years for a 20 m 3 tank. In Australian studies by van der Sterren et al [10][11][12], it was found that although RWHS would be very useful in providing required water in peri-urban regions of Sydney, water quality would not always meet the required standard in relation to heavy metals and pathogens.…”

Section: Introductionmentioning

confidence: 99%

Reliability and Cost Analysis of a Rainwater Harvesting System in Peri-Urban Regions of Greater Sydney, Australia

Hajani

Rahman

2014

Water

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Abstract:In large cities, rainwater tanks are used to save mains water, but in peri-urban and rural areas, rainwater tanks are used as a sole water supply for many households, as these regions often do not have any other means of water supply. This paper investigates the performance of a rainwater harvesting system (RWHS) in peri-urban regions of Greater Sydney, Australia. Considering the daily rainfall data over the entire period of record at ten different locations, it has been found that a 5 kL tank can meet 96% to 99% of the demand for toilet and laundry use depending on the location in Greater Sydney regions. However, in the driest year, a 5 kL tank can meet 69% to 99% of toilet and laundry demand depending on the location. Based on the results of life cycle cost analysis, it has been found that a 5 kL tank has the highest benefit-cost ratio (ranging from 0.86 to 0.97) among the eight possible tank sizes examined in this study. Interestingly, for a 5 kL tank, with a combined use (i.e., toilet, laundry and irrigation), the current water price in Sydney needs to be increased by 3% to 16% to achieve a benefit-cost ratio exceeding one. A set of regression equations are developed which can be used to estimate reliability using the average annual rainfall data at any arbitrary location in the peri-urban regions of Greater Sydney. The method presented in this paper can also be applied to other Australian states and other countries to estimate water savings and reliability of a RWHS using daily rainfall data. OPEN ACCESSWater 2014, 6 946

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Section: Introductionmentioning

confidence: 99%

Reliability and Cost Analysis of a Rainwater Harvesting System in Peri-Urban Regions of Greater Sydney, Australia

Hajani

Rahman

2014

Water

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“…Such technology could also be used to meet regulatory requirements for on-site detention (OSD). Such site-based OSD requirements are common in Australia [44] and many parts of the world (e.g., [45]). Combining this functionality with rainwater harvesting and restoration of stream flow regimes provides an attractive integrated water cycle solution.…”

Section: Introductionmentioning

confidence: 99%

Improving the Multi-Objective Performance of Rainwater Harvesting Systems Using Real-Time Control Technology

Fletcher

Duncan

et al. 2018

Water

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Abstract:Many studies have identified the potential of rainwater harvesting (RWH) systems to simultaneously augment potable water supply and reduce delivery of uncontrolled stormwater flows to downstream drainage networks. Potentially, such systems could also play a role in the controlled delivery of water to urban streams in ways which mimic baseflows. The performance of RWH systems to achieve these three objectives could be enhanced using Real-Time Control (RTC) technology to receive rainfall forecasts and initiate pre-storm release in real time, although few studies have explored such potential. We used continuous simulation to model the ability of a range of allotment-scale RWH systems to simultaneously deliver: (i) water supply; (ii) stormwater retention; and (iii) baseflow restoration. We compared the performance of RWH systems with RTC technology to conventional RWH systems and also systems designed with a passive baseflow release, rather than the active (RTC) configuration. We found that RWH systems employing RTC technology were generally superior in simultaneously achieving water supply, stormwater retention and baseflow restoration benefits compared with the other types of system tested. The active operation provided by RTC allows the system to perform optimally across a wider range of climatic conditions, but needs to be carefully designed. We conclude that the active release mechanism employing RTC technology exhibits great promise; its ability to provide centralised control and failure detection also opens the possibility of delivering a more reliable rainwater harvesting system, which can be readily adapted to varying climate over both the short and long term.

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“…Stormwater could be confined within the system allowing vertical flow of water to underlying soil that the authors opined would have befitted the agenda of sustainability. The purpose of having water storage chamber under the permeable road is similar to have On-Site Detention (OSD) facility [10][11] that is built with a combination of depressions in paved areas for better stormwater conveyance and an underground tank which does not use up land space [12]. Existing gutters, pipes, curbs, and graded surfaces are part of the overall site drainage system which assists in directing stormwater runoff to the StormPav Green Pavement.…”

Section: Methodsmentioning

confidence: 99%

Augmenting Drainage System in the Old Town of Kuching, Sarawak, Malaysia

Mah¹,

Ong²,

Liew³

et al. 2018

IJET

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Padungan, one of the busiest business districts within Kuching City has been facing difficulties due to its age and inability to manage urban runoff. To sustain its historical heritage value without compromising the beauty and ability to discharge urban runoff, environmental needs have called for a change in urban stormwater management. The main objective of this study is to incorporate StormPav Green Pavement along the backstreet of Padungan and to investigate the effectiveness of the permeable road. The methodology used in this study is by means of computer modelling using Storm Water Management Model (SWMM). There are two models built, simulating conditions as (a) current drainage system facility; (b) implementing StormPav Green Pavement along the back of Padungan Street for the purpose of accommodating runoff from the whole two rows of buildings. From the analysis of modelling scenes, implementing the permeable road is a preferable solution as it encompasses both the present and future needs into the design consideration.

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An overview of on-site retention and detention policies for urban stormwater management in the Greater Western Sydney Region in Australia

Cited by 20 publications

References 10 publications

Reliability and Cost Analysis of a Rainwater Harvesting System in Peri-Urban Regions of Greater Sydney, Australia

Reliability and Cost Analysis of a Rainwater Harvesting System in Peri-Urban Regions of Greater Sydney, Australia

Improving the Multi-Objective Performance of Rainwater Harvesting Systems Using Real-Time Control Technology

Augmenting Drainage System in the Old Town of Kuching, Sarawak, Malaysia

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