Geo Energy 25 Total water discharge (m3) 2022 79,039 3,544 75,495 2023 78,707 3,465 75,242 Surface water Other water sources Waste Treatment Plant (WWTP) where hazardous pollutants are removed, and pH levels are normalised before release. The discharged water from our domestic activities is then regularly monitored for priority substances of concern, such as total Fe (iron content), total Mn (manganese content), and total solid suspension (TSS), in accordance with national regulations such as the Minister of Environment and Forestry Decree No. 68 - 2016, Minister of Environment Regulation No. 113-2003 concerning Wastewater Quality Standards for Coal Mining Businesses and Activities, and South Kalimantan Governor Regulation Number 036 of 2008 concerning Quality Standards for Mining Wastewater. We aim to maintain discharge limits for priority substances of concern in line with local environmental quality standards and will immediately coordinate with relevant department and employees if discharge limits are close to the maximum limit as set out in the standards. Our initiatives and performance To improve the monitoring and management of our wastewater, we have built management facilities called settling ponds for our SDJ and BEK mines, with area size of about 1.55ha and 1ha respectively. Within the settling pond, solid pollutants are separated from the water originating from mining activities to meet quality standards as set out in local regulations before being discharged into public waters. Total water withdrawal (m3) 2022 93,710 4,600 89,110 Groundwater Surface water Municipal water supplies 2023 96,034 3,878 91,696 460
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