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Attachment E - 8.2.1 Acid Sulfate Soils Overlay Code · MCU20/0071
8.2.1 Acid Sulfate Soils Overlay Code
8.2.1.1 Application
(1) This code applies to assessable development:
(a) subject to the Acid Sulfate Soils Overlay shown on the overlay maps contained within Schedule 2 (Mapping); and
(b) identified as requiring assessment against the Acid Sulfate Soils overlay code by the tables of assessment in Part 5
(Tables of assessment).
(2) All provisions in this code are assessment benchmarks for applicable assessable development.
Editor's Note—the Acid Sulfate Soils Overlay Maps in Schedule 2 (Mapping) identify the following areas potentially subject to acid sulfate
soils:-
(a) Area 1 (Above 5 metres to 20 metres AHD); and
(b) Area 2 (5 metres AHD or below).
Editor’s Note—Planning scheme policy for Assessment of Natural Hazards provides advice and guidance for achieving certain
outcomes of this code, including guidance for the preparation of an ASS investigation report and management plan.
8.2.1.2 Purpose and overall outcome
(1) The purpose of the Acid Sulfate Soils overlay code is to ensure that the generation or release of acid and metal contaminants from
acid sulfate soils (ASS) does not have adverse effects on the natural environment, built environment, infrastructure or human
health.
(2) The overall outcome of the Acid Sulfate Soils overlay code is that development ensures that the release of acid and associated
metal contaminants into the environment is avoided by either:
(a) not disturbing ASS when excavating or otherwise removing soil or sediment, extracting groundwater or filling land; or
(b) treating and, if required, undertaking ongoing management of any disturbed ASS and drainage waters.
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Table 8.2.1.3 - Criteria for assessable development
Performance outcomes Acceptable outcomes Compliance
Avoidance and management of ASS
PO1 AO1.1 As detailed in the accompanying civil
Development: The disturbance of ASS is avoided by: engineering drawings, the proposed
development demonstrates compliance with
(a) does not disturb ASS; or (a) undertaking an ASS the requirements of AO1.1 as the extent of
is managed to avoid or minimise investigation and soil analysis earthworks required does not include
(b)
according to the National Acid significant cut across the site. This will be
the release of acid and metal
Sulfate Soils Guidance; subject to detailed review at the OPW stage.
contaminants, where disturbance
of ASS is unavoidable. (b) not excavating or otherwise
removing soil or sediment
containing ASS;
(c) not permanently or temporarily
extracting groundwater that results
in the aeration of previously
saturated ASS; and
(d) not undertaking filling on land at
or below 5 metres AHD that
results in:-
(i) actual ASS being moved below
the water table; or
(ii) previously saturated ASS being
aerated.
Editor's note—National Sampling and
Identification Methods Guidelines is a
reference to:
(a) National Acid Sulfate Soils Guidance:
National acid sulfate soils sampling
and identification methods manual,
Department of Agriculture and Water
Resources, Canberra (Sullivan et al,
2018); and
(b) National Acid Sulfate Soils Guidance:
National Acid Sulfate
NOOSA PLAN 2020 Page 2 of 2
Page 3
Performance outcomes Acceptable outcomes Compliance
(a) National Acid Sulfate Soils Guidance:
National Acid Sulfate Soils
Identification and Laboratory Methods
Manual, Department of Agriculture and
Water Resources, Canberra; and
(b) the Australian Standard 4969.
AO1.2
The disturbance of ASS avoids the release
of acid and metal contaminants by:
(a) undertaking an ASS investigation
conforming to the National Acid
Sulfate Soils Guidance;
(b) neutralising existing acidity and
preventing the generation of acid and
metal contaminants using strategies
documented in the Soil Management
Guidelines; and
(c) preventing the release of surface or
groundwater flows containing acid and
metal contaminants into the
environment.
AND
Editor's note—Soil Management
Guidelines is a reference to the
'Soil Management Guidelines. Queensland
Acid Sulfate Soils Technical Manual'. Dear
SE, Moore NG, Dobos SK, Watling KM and
Ahern CR. Department of Natural
Resources and Mines (2002).
AO1.3
Where potential or actual ASS is identified,
they are managed in accordance with an
ASS management plan.
NOOSA PLAN 2020 Page 3 of 2
Used in these records
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