Integrating Alternative Water Sources In
Urbanised Environments
Author(s)
M. Schwecke, B. Simmons, B. Maheshwari & G. Ramsay
Abstract
The need to use alternative sources of water for irrigation has arisen from the
current shortages of potable water within Australia. As a result local
governments are investigating alternative water sources (treated effluent,
stormwater and groundwater) for irrigating urban playing fields and open spaces
to cope with times of water shortages.
In this paper, using Manly Local Government as a case study, the quality of
treated effluent, stormwater, groundwater and the receiving water was analysed,
to determine the potential impacts of capturing and using these alternative
sources on the local environment. Systems analysis was used to identify the
connectivity between the various water sources.
It was observed that the injection of stormwater and effluent into the local
water cycle could potentially pose a risk to the environmental, including ground
and surface waters which are estuarine influenced systems. Stormwater was
found to be of a variable quality and therefore requires constant monitoring to
ensure no contamination events (such as road spill) enter the system.
Groundwater salinity levels also required constant monitoring to prevent ingress
of saline estuarine water. It also appears that as long as appropriate safeguards
are put in place, the use of alternative water sources could help improve the local
water cycle processes of urbanised catchments.
Keywords: environmental connectivity, environmental susceptibility,
groundwater, stormwater, systems analysis, treated effluent, urbanised
environments.
Keywords
environmental connectivity, environmental susceptibility,
groundwater, stormwater, systems analysis, treated effluent, urbanised
environments.
Related Book
Other papers in this volume
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