Water security is a business-critical risk at CSBP's Kwinana site with current and future threats to availability, reliability and cost of traditional water supply options. Failure to mitigate these risks could lead to an increase in cost and regulatory risk, and negatively impact plant reliability. During the year, WesCEF commenced developing a long-term water strategy to ensure water sustainability at its CSBP Kwinana site. The strategy examines options to manage water volume to meet current and future needs and the management of wastewater including reuse and recycling.
Focus areas for 2020 financial year include:
- identifying a new climate independent water supply option;
- optimising existing water treatment; and
- reducing water intensity.
Legacy waste represents an ongoing environmental risk due to potential impacts on the environment and/or neighbours. Progress is being made on delineating identified contamination which is informing management decisions. The engagement of accredited contaminated site auditors for each of our sites will ensure the risk is suitably managed. WesCEF progressed its contaminated sites strategy during the year. This progress included the development of a remediation strategy for the former Australian Vinyls site in Laverton, Victoria, with final planning approvals expected in the 2020 financial year.
Scope 1 and 2 greenhouse gas emissions increased by 17 per cent compared to last year. The increase in emissions is largely attributable to WesCEF's increased EGAN production levels in response to ongoing disruption at the competing Burrup plant and a reduction in abatement efficiency of the catalysts in the nitric acid plants. Reinvestment in the catalyst is planned for 2020, during scheduled maintenance shutdowns.