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Communities or developers may choose to install collection and treatment systems
that service whole towns, a cluster of premises, tourist developments,
new subdivisions or developments on Aboriginal lands as an alternative
to each property owner treating and disposing of
wastewater onsite (within property boundaries).
Community systems
designed to collect and treat wastewater from each property using a
common network can include gravity raw sewage systems, a combination of
gravity and pumped mains, vacuum collection systems and pumping from
each premises to common mains or Septic Tank Effluent Drainage Schemes (STEDS).
The wastewater treatment may include systems utilising various
technologies with the reuse of reclaimed water (final treated effluent).
The extent of treatment provided by the system must be suitable for the
safe reuse or disposal of the reclaimed water.
Treatment methods may include activated sludge, extended aeration,
intermittently aerated / decanted systems, trickling filters,
bio-reactors, sand filters, micro-filters, low or high technology
systems and any other technologies.
New and innovative designs are encouraged. However, for new system
designs, conditions of approval may require more stringent operational
and/or final effluent
quality standards, at least in the initial stages.
Approval
Approval must be obtained before a town and
community wastewater collection and treatment system (including systems
for reclaimed water reuse) is installed.
Applications for approval must be submitted to
the Department's Wastewater Management Section (authorised officers of the Department of
Health with the delegated authority from the Minister of Health).
An application fee applies. Contact the
Wastewater Management Section for the current fee. We recommend that you
discuss the proposed installation with Department Officers in the early
stages of planning a development. There may be important design
considerations that need to be identified before planning decisions are
made.
You can find more
information in our Design
criteria for hydraulic and BOD5 loading page.
The details of the effluent treatment for reclaimed water reuse must be
provided as part of an application for approval. Information on
applications for reuse of reclaimed water
can be found in our Reclaimed Water Reuse
guide, and for further information the SA Reclaimed Water
Guildelines.
Other Government Agencies
Applicants
must make sure they comply
with the approval requirements of other government
agencies. Compliance with other agency requirements is separate from the
Department's approval process.
Development approval ~ for
development approval requirements contact the local council and/or
Development Assessment Commission -
Planning SA
Environment Protection Agency (EPA) ~
we recommend that you contact the EPA
Operations Branch on 8204-2004 in the early stages of planning. The EPA
has published the South
Australian Biosolids Guidelines for the safe handling, reuse or disposal
of biosolids (PDF 553k) as a guide to the beneficial, safe and sustainable
reuse of biosolids from wastewater:
Standards and Codes
The
following publications should be used in the design and installation of a
wastewater collection system where applicable:
All community
developments of less than 20 units (including high rise apartments)
which do not incorporate access roads, are to be designed using AS/NZS
3500.2. All other developments are to be designed using the respective
sewerage or STEDS Codes as listed above.
Application form
The
application form specifies the information necessary for the approval of the collection and treatment system and for reclaimed
water reuse.
Application for wastewater systems and reclaimed
water reuse schemes for towns, subdivisions and communities
Wastewater Management |
Approved wastewater products list |
Standard Onsite
Wastewater Systems | Wastewater systems
for towns and other larger developments |
Alternative Onsite
Systems |
Pre-manufactured
products for sale and use in installations in SA |
Reclaimed Water
Reuse |
Seminar 2006 |
Seminar 2003
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