KEYSBROOK LEUCOXENE PTY LTD and SHIRE OF SERPENTINE-JARRAHDALE

Keysbrook Leucoxene Pty Ltd initiated proceedings against the Shire of Serpentine-Jarrahdale, challenging the conditions imposed by the Shire following the approval of a development application for mineral sand mining. The dispute centred on the terms set for the mining operation, including the duration of the mining licence, rehabilitation timelines, and the parallel implementation of environmental management plans mandated by the Environmental Protection Act 1986 (WA). The case required the court to interpret the scope of the Tribunal's determination on these unresolved conditions, which were decided after mediation between the parties.

The court was tasked with determining whether certain conditions set by the Tribunal were lawful and enforceable, including the duration of the mining operation and licence, the timeframe for rehabilitation, and the substantial commencement date. It also needed to examine the extent to which these conditions could be parallel-conditioned with the environmental management plans, which covered aspects such as air quality, dust, water, nutrients, and rehabilitation. The court had to consider the necessity of compliance assessment auditing and interpretative review of environmental findings, as well as the obligations concerning land stability post-extraction and dust suppression measures.

In its decision, the court found that the Tribunal had the authority to impose the conditions it did, given the statutory framework within which it operated. The court upheld the Tribunal's determinations on the duration of the mining operation and the parallel conditioning of environmental management plans, finding these were within the bounds of the legislation. It also held that the Tribunal was correct in its approach to setting rehabilitation timelines and the substantial commencement date. The court clarified that a geotechnical report was not required and that the obligation of'reasonable endeavours' was sufficient for dust suppression. The court further confirmed that notices on the title were appropriate, and the various conditions approved by the Tribunal were lawful.

The final orders confirmed the Tribunal's determinations and authorised the Shire of Serpentine-Jarrahdale to enforce the conditions set forth in the development application approval, subject to the interpretations and clarifications provided by the court.