ENVIRONMENTAL AWARENESS & PRESERVAT ION Sect ion 06 41 SUSTAINAB I L I TY Report 2022 RPI and RPII At the power plant operations at both RPI and RPII, water is consumed for personal consumption of employees as well as for the boilers and maintenance works. The maintenance works include the following: gas turbine offline water wash, boiler tube leaking, valve passing works and other purposes. WATER CONSUMPTION (m³): RPI –TELUK SALUT AND RPII – RUGADING Financial Year FY2020 FY2021 FY2022 Teluk Salut (m³) 81,937 91,704 90,920 Rugading (m³) 55,459 43,110 42,787 Total (m³) 137,396 134,814 133,707 RPI AND RPII OFFSITE WATER TREATMENT TOTAL DISCHARGE Financial Year FY2021 FY2022 Teluk Salut (m³) 11,163 8,642 Rugading (m³) 3,205.4 2,917 Total (m³) 14,368.37 11,559 RAW WATER TRANSFER Ranhill SAJ has in the past, increased the volume of raw water transfer from rivers to designated dams. Example of this include water transfer activities from Tasik Biru and Chabang Tiram River to the Upper Layang Dam. In FY2022, an additional raw water transfer project, the Sg Ulu Sedili Besar project was given priority. The project once completed will enable 18 MLD of raw water from Sg Sedili to be channelled to the Gembut WTP to meet growing consumption demand from the Gembut area. Aside from ensuring sufficient supply, the raw water transfer activities are important to preserve oxygen levels in the water. Higher water levels in dam means larger water surface areas which increase the oxygen levels. GROUNDWATER EXPLORATION In the past, Ranhill SAJ, collaborating with external parties have been successful in tapping groundwater as an alternative source to river water. In FY2022, Ranhill SAJ successfully conducted groundwater exploration at the Lok Heng WTP with a potential of 4 MLD. Ranhill SAJ is ensuring the use of groundwater should be done in a sustainable manner which enables underground water sources to be sufficiently replenished, in an effort to ensure long term, sustainable supply. Hence, the volume of groundwater abstraction is constantly monitored to ensure the resources are not over exploited before supply is available again. Raw water pumping system from Tasik Biru to Upper Layang Dam to increase the raw water storage volume Outfall at Layang Dam from Tasik Biru raw water pumping system ENV I RONMENTAL Awareness & PRESERVAT ION
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