Wasco Berhad Integrated Annual Report 2023

Sustainability Report Oily rags • Oily rags are stored in a designated oily rag receptacle. • Clients’ maintenance operations should have an existing process for disposing of oily rags Hydrotest water • Hydrotest water is collected. • The greywater system can dispose of untreated test water of fewer than 100 litres. Operations confirm greywater can handle the volume at the time of disposal. Third parties may dispose of it if the site cannot handle the additional volume. Waste Condensate • An authorised contractor collects condensate waste in suitable containers for transport and disposal. • The client provides a bundled storage area for waste containers awaiting collection. Waste Amine • An authorised contractor collects amine waste in suitable containers for transport and disposal. • The client provides a suitable, bundled storage area for waste containers awaiting collection. Soil / spoil • A civil contractor removes soil and spoil from the site, transporting them for disposal at an authorised facility. Waste concrete • A civil contractor removes waste concrete from the site, transporting them for disposal at an authorised facility. Contaminate soil • Contaminated soil, where it arises, is removed and stockpiled for disposal at a suitably licensed facility. Noise Boundary Monitoring The noise produced during the construction, operations and decommissioning of large infrastructure projects can potentially impact nearby noise-sensitive receptors. The Group complies with the Environmental Quality Act 1974. We also conduct boundary noise monitoring at a few points along the perimeter of our operations to align with approval conditions of Environmental Impact Assessments (“EIA”). In 2022, all noise levels were within 65 dBA, the level stipulated by the Department of Environment. 73 Wasco Berhad

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