Water Use and Reuse Stream Projects
Domestic-scale rainwater ASR - Patawolonga
Catchment Water Management Board
 Introduction
Rainwater derived from roof surfaces may offer
good quality water if it can be successfully
harvested. A three year demonstration project
is currently underway to investigate the operational
performance of domestic-scale aquifer storage
and recovery (ASR) with rainwater. A shallow
alluvial aquifer containing brackish groundwater
in the southeast Adelaide metropolitan area was
chosen, injection and observation wells installed
and harnessed to a rainwater collection tank
via a filter to determine if householder management
alone is likely to be effective in ensuring sustainable
practice.
Objectives/Scope
- to measure operational performance of domestic
scale ASR, determine departures from predicted
performance, and identify solutions to any
problems that arise, so that in future appropriate
advice can be given when licensing such installations
- to provide a rainwater ASR comparison for
an intended operational ASR site with treated
stormwater runoff in shallow alluvium at the
Urrbrae Agricultural High School wetland, (approx
300m north east)
- to provide a site to determine whether recovered
water quality from a nearby well meets all
drinking water criteria, after the plume of
freshwater reaches that well.
Activities
- Run pumping tests to compare yields for
two wells
- Establish and test a monitoring system to
monitor flow rate, volume, temperature, EC
(outflow), water levels and rainfall.
- Water quality sampling of inputs and outputs,
in particularly with regards to microbial and
organic analyses in roof run-off (pre-leaf
trap) and tank water
- Bi-monthly data download, sonde profiles
and equipment maintenance
- Vertical flow velocity meter profiling and
EC well profiling
- Reporting on performance and technical and
operational issues
 Key Staff
Peter Dillon and Karen
Barry.
Partners
SA Water Corporation provided two flow meters
Timeline
2003- 2006
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