Westpork Pty Ltd – West Pinjarra (Formerly operated by GD Pork Pty Ltd)

Background

GD Pork Pty Ltd (GD Pork) held Licence L9142/2018/1 for an intensive piggery at Lot 502 Sutters Lane in West Pinjarra, south of Perth.

On 2 November 2018, the Department of Water and Environmental Regulation (DWER) was advised that GD Pork had been placed into administration, and the licence was transferred to new occupier Westpork on 17 May 2019.

On 25 July 2019, DWER issued an Environmental Protection Notice (EPN) to Westpork Pty Ltd to restrict animal numbers on the premises to 3,121 standard pig units* by 15 June 2020. This was considered appropriate and necessary to reduce odour emissions from piggery operations if the proposed strategies to reduce odours and improve waste management, described below, are not carried out in a reasonable timeframe.

On 12 August 2019, DWER hosted a community consultation meeting at Lesser Hall, Pinjarra. Representatives of DWER and Westpork provided an overview of the current and future management of the premises and responded to questions.

On 24 September 2019, DWER amended Westpork’s Licence L9142/2018/1 to extend its duration to align with the destocking date specified on the EPN.

Updated January 2021.

What is Happening Now?

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Westpork has proposed a strategy to address the issues associated with odour and waste management at the premises.

This included desludging of the existing anaerobic pond, and the installation of additional wastewater treatment infrastructure.

The desludging of the existing anaerobic pond is expected to reduce odour emissions by bringing solid waste effluent (sludge) below the water line in the pond. Westpork completed the desludging campaign in December 2019 and the sludge is awaiting removal from the premises once it has sufficiently dried.

On 20 December 2019, DWER approved works approval W6292/2019/1, which authorises the installation of additional wastewater treatment infrastructure including a covered anaerobic digestor, settlement trenches and a biogas treatment system.

This new infrastructure is anticipated to be completed early in 2021 and result in improvements to wastewater treatment and odour management at the premises.

Noting that Licence L9142/2018/1 is due to expire on 15 June 2021, Westpork is expected to apply for a new licence in early 2021.  The scope of this licence application is expected to include the ongoing operation of new infrastructure.

Any licence application received by DWER will be published on its website for public comment and direct interest stakeholders will be notified.

DWER will also continue to carry out regular inspections of the premises to assess compliance with the EPN and to monitor emissions.

More information

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Members of the community are reminded that it is important to report odour impacts at the time that they occur by calling the Pollution Watch Hotline on 1300 784 782. The online reporting tool can be used to lodge complaints after the impact has occurred.

If you have any further questions relating to this issue, please email info@dwer.wa.gov.au.

*A standard pig unit (SPU) defines piggery capacity by manure production. The manure and waste feed produced by one SPU contains the equivalent amount of volatile solids (VS) to that typically produced by an average size grower pig. This is equivalent to 90 kg of VS per year.


Page reviewed 25 February 2021