Sustainability Report Conserving Water Resources We carefully manage the use of fresh water in our operations and the impact of our projects on water resources in the surrounding areas. We aim to use alternatives such as recycled water to reduce water use and improve its efficiency. We have a range of processes that evaluate and help us manage risks associated with our water use. These processes focus on considering water conservation and efficiency in critical decisions and striving to conserve, reuse and recycle. Wasco has one operation in water-stressed regions. We make every effort to manage this resource efficiently and minimise water use at all sites. In each site we have our HSE Management Plan, which includes a Water Management Procedure. This procedure outlines appropriate water control and monitoring measures for water management in the localities that we operate in, with reference to relevant local regulations and applicable legal requirements. Some examples of site level water reduction measures include water recycling, rainwater harvesting and reusing process water used in plant operation where possible. There has been no incidence of violations of water quality standards during this reporting period. Water Consumption and Intensity (100% of Operations) Wasco expresses its water intensity as total water consumed measured in cubic metres by 1,000 man-hours. Year 2021* 2022 2023 Total Water Consumed (m3) 151,121 225,916 261,490 Total Water Harvested (m3) 0 0 7,650 Total Man-hours 5,938,644 10,985,154 15,704,670 m3/Man-hours (1,000) 25.45 20.57 16.65 CO2e Emissions Water Withdrawal (m3) (tonnes) CO2e Emissions (tonnes) 4,880 14,216 15,452 8,719 11,008 14, 2021* 2022 2023 2021* 2022 2023 2021* 2022 2023 2021* 2022 2023 0 5,000 10,000 15,000 20,000 0 3,000 6,000 9,000 12,000 15,000 CO2e Emissions (tonnes) 0 5,000 10,000 15,000 20,000 25,000 30,000 35,000 0 0.50 1.00 1.50 2.00 2.50 13,599 24.45 25,225 29,512 1.88 2.29 2.30 0 50,000 100,000 150,000 200,000 250,000 300,000 0 5 10 15 20 25 30 20.57 151,121 225,916 261,490 7,650 16.65 Water Consumed (m3) Havest Water (m3) Water Intensity Note: Data for 2022 and 2023 encompasses all entities in Wasco. Data for 2021 were scoped to Wasco’s Energy Division only. 74 Integrated Annual Report 2023
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