Sara D Lloyd's research while affiliated with University of Victoria and other places

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Publications (6)


The Planning and Construction of an Urban Stormwater Management Scheme
  • Article

February 2002

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286 Reads

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78 Citations

Water Science & Technology

S D Lloyd

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B Porter

Water Sensitive Urban Design (WSUD) offers a means to integrate stormwater best management practices into urban planning and design to achieve multiple objectives. Some of these objectives relate to stormwater drainage, water quality improvements, aquatic habitat protection, stormwater harvesting and use, and landscape amenity. The Lynbrook Estate, Australia, has incorporated bio-filtration systems and wetlands into the design of major roads, local access streets and parklands that attenuate and treat roof runoff and road runoff from a 32 ha, 270 allotment residential precinct. This paper outlines the process that enabled the concept of a stormwater drainage design to be translated into on-ground works. Details of the construction activities, costs and market acceptance highlight the potential for the adoption of similar practices elsewhere.

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Sediment Characteristics in Stormwater Pollution Control Ponds

January 2002

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19 Reads

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3 Citations

Australasian Journal of Water Resources

Wetlands systems are often monitored to assess their performance during a flow through event. The spatial mapping of sediment deposition within pollution control ponds complements water quality data, providing information on the efficiency and sustainability of the system as a pollution abatement facility. The characterisation of the sediments and associated pollutants allows a better understanding of the role of sedimentation in the overall improvements to water quality. In stormwater systems, the efficiency with which pollutants such as TSS and pre-dominantly sediment-bound contaminants such as phosphorus, metals and polycyclic aromatic hydrocarbons are removed is intrinsically related to the characteristics of the sediment inflow to the wetland. The sediment-bound pollutants are known to have a higher association with the finer range of sediment sizes and targeting the removal of the appropriate particle size fraction is necessary in designing stormwater pollutant abatement facilities. This paper presents the results for two studies of sediment characteristics: the first is at the Monash University Research Wetland in Australia and the second at the Braunebach Wetland pollution abatement facility in Germany. Sediment cores were taken at regular grid intervals to identify the physical characteristics of the accumulated sediments in these wetland systems. Defining the spatial sediment deposition patterns and the associated particle size distribution provided a greater understanding of each system’s water quality improvement function. This understanding of sediment characteristics has direct implications for the management of pollution control facilities and enables modifications to be suggested for future designs.


Table 2 lists possible
Figure 3. Best management practices, their target particle size range and operating hydraulic loading range (Wong 2000)
Figure 4. The application of MUSIC covers a range of spatial scales, from development of a regional stormwater quality treatment strategy (top) to modelling local streetscape systems (bottom).
Table 5 also presents a summary of the perceived level of
Figure 14. Negative perceptions of bio-filtration systems held by survey participants Figure 13. Positive perceptions of bio-filtration systems held by survey participants

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Water Sensitive Urban Design – A Stormwater Management Perspective
  • Article
  • Full-text available

January 2002

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5,173 Reads

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117 Citations

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Citations (6)


... For mean particles (1-10 µm), all forces and mechanisms can make a contribution to the deposition of particles [9]. Given the diverse range of particle sizes in stormwater, which varies depending on the type of catchment, level of pre-treatment etc. [10], it is necessary to understand the clogging process in order to ultimately improve the filtration performance of a porous medium. ...

Reference:

Clogging of Infiltration Basin and Its Impact on Suspended Particles Transport in Unconfined Sand Aquifer: Insights from a Laboratory Study
Sediment Characteristics in Stormwater Pollution Control Ponds
  • Citing Article
  • January 2002

Australasian Journal of Water Resources

... In many cases, a sequence (often called a treatment train) of measures may be used. For example, linear infiltration or biofiltration systems may be placed within the urban streetscape that may pass on water to a sedimentation basin and CW, before discharging to an ornamental pond (Lloyd et al., 2001). Heightened concern during the 1980s about the deleterious effects of urbanization on watersheds of densely populated Mid-Atlantic States in the United States has resulted in adopting a variety of stormwater management regulations intended to mitigate the damage by these states. ...

Implementing an ecologically sustainable stormwater drainage system in a residential development
  • Citing Article
  • January 2001

Water Science & Technology

... " [35] (p. 1). Wong et al. [36] highlight persisting drainage challenges at different types of roads, causing loss of natural habitats, chemical pollution, persistent waterlogging, and alteration of the hydrology and geomorphology of water bodies due to the construction and operation of road infrastructure in cities of the Global North. Austerity measures make financially poor municipalities ineffective in maintaining the existing infrastructure. ...

Water Sensitive Road Design – Design Options for Improving Stormwater Quality of Road Runoff

... However, some studies have shown how maintenance requirements for NBS decrease over time Houle et al. 2013;Lloyd et al. 2002). While initial maintenance requirements can be higher during what is called the "establishment period"time for vegetation to grow to optimal levels, with more frequent inspections and routine gardening actions, generally lasting one to three yearsover time, those maintenance needs decrease . ...

Water Sensitive Urban Design – A Stormwater Management Perspective

... 51-54 ► Stormwater drainage and treatment: this includes resizing, reprofiling and formalising drains, and swales, rain gardens and constructed stormwater treatment wetlands and permeable paving. [55][56][57][58] ; ► Water supply security: rainwater tanks and collection, connection to municipal water supply, water supply disinfection and protection of existing shallow well water supplies. ► Access roads, utility corridors, raised pathways; ► Flood management: including backflow prevention, minor localised spot-filling, minor terrain modification and flood protection walls. ...

Managing Urban Stormwater Using Constructed Wetlands

... A comparison of the drainage systems of the past and the present had been done, which undoubtedly points to the fact that proper design and planning of drainage systems is inevitable for a healthy environment, especially in cities [1]. In Australia, Water-Sensitive-Urban-Design (WSUD) was used as an approach to sustainable urban water resource management in order to minimize the influence of urban expansion on the complex irreparable natural water cycle of a region [2]. The adoption of best planning practices (BPP) is essential to the application of WSUD. ...

The Planning and Construction of an Urban Stormwater Management Scheme
  • Citing Article
  • February 2002

Water Science & Technology