GREENPATCH DEVELOPMENT —
WASTEWATER TREATMENT PLANT — DALYELLUP
1067. Hon DIANE EVERS to the minister representing the
Minister for Planning:
I refer to the minister's
response to my question without notice 1053 asked on 31 October.
(1) Is the
minister aware that approximately one-third of the proposed Dalyellup
Greenpatch area earmarked for houses in the Greenpatch structure plan falls
inside the recommended odour buffer area for the Dalyellup wastewater treatment
plant in the report tabled on 16 May 2018?
(2) Is the
minister aware that the odour emissions rates used for modelling in the report
were old projections rather than the plant configuration and measurements at
the time of the report?
(3) Does the
minister consider that an investigation into projections and a review of the
buffer based on current measurements is warranted; and, if not, why not?
(4) Given that
the Environmental Protection Authority in its submission on the wastewater
treatment plant buffer amendments to the greater Bunbury region scheme in 2011
suggested the modelling was not sufficiently conservative to capture the full
extent of odour impacts, why was the final odour buffer area in the greater
Bunbury region scheme made significantly smaller than that recommended in the
report?
Hon
STEPHEN DAWSON replied:
I thank the honourable member for
some notice of the question.
(1) The Western Australian
Planning Commission will be responsible for the assessment of the Greenpatch
structure plan.
(2) The
projections were deemed suitable to inform the amendment. Correspondence to the
Department of Planning, Lands and Heritage and the Western Australian Planning
Commission following advertising confirms that the buffer was suitable.
(3) The Western Australian
Planning Commission will consider the appropriateness of the buffer and whether
proposed housing encroaches on the buffer in its consideration of the
Greenpatch structure plan.
(4) The special
control area 4 buffer area, as advertised, being the current alignment, was
considered by all relevant agencies as part of the greater Bunbury region
scheme amendment process. Through the amendment process, the then Department of
Environment and Conservation and Water Corporation agreed that the buffer is
acceptable, and that the Water Corporation would monitor emissions to ensure
ongoing compliance with the Environmental Protection Act 1986.