Water Management
Goals and Performance Highlights
Goals
- Reduced total water consumption by more than 0.5% compared to the previous year.
- Reduce total water consumption by more than 0.5% by 2028 compared to the base year 2022.
- Reduced water consumption per adjusted patient day by more than 0.5% compared to the previous year.
- Reduce water consumption per adjusted patient day by more than 0.5% by 2028 compared to the base year 2022.
- Reduced water consumption per total revenue by more than 0.5% compared to the previous year.
- Reduce water consumption per total revenue by more than 0.5% by 2028 compared to the base year 2022.
Performance in 2025
Total municipal water consumption decreased by
Water consumption per patient-day increased by
Water consumption relative to total revenue decreased by
Challenges and Opportunities
Water resources are an essential component of hospital operations, supporting sanitation, infection control, medical procedures, and the maintenance of a safe environment for patients and staff.
The Company recognizes the importance of efficient water management across its operations and has established a comprehensive water management policy covering the entire water lifecycle, from water sourcing and treatment to reuse and discharge into the public drainage system in compliance with legal standards. This approach aligns with the Sustainable Development Goals (SDGs), particularly Goal 6: Clean Water and Sanitation and Goal 13: Climate Action. The Company integrates water management into its ESG governance framework, with oversight by the Board of Directors and the Corporate Governance and Sustainable Development Committee, while the Sustainable Development Working Team is responsible for implementation and performance reporting to ensure balanced and sustainable water resource management in the long term. Water Stress Assessment The Company has conducted a water risk assessment of the hospital’s location using the WRI Aqueduct 4.0 Water Risk Atlas (Baseline Annual 1979–2019), an internationally recognized standard referenced by FTSE Russell ESG Ratings, CDP Water Security, and GRI 303-1.
Management Approach and Value Creation
The Company has established water management targets aligned with the Medium–High Water Stress level of the area in which the hospital is located, ensuring that the measures implemented are appropriate to the site-specific water risk context, as follows:
Total Water Consumption Year 2022-2025
The Company has designated 2022 as the base year for calculating and monitoring energy consumption, covering three operational buildings: Building A, Building B, and the Office Building. In addition, the Company reports water-related data, including total water consumption, water discharge, water withdrawal, and water consumption per total revenue, in accordance with GRI disclosure standards.
Water Consumption per Adjusted Patient Day
Water Consumption per Total Revenue
- Total water consumption increased by 34.5%
- Water consumption per Adjusted Patient Day increased by 30.2%
- Water consumption per total revenue increased by 18.1%
- Total water consumption increased by 33.1%
- Water consumption per Adjusted Patient Day increased by 43.7%
- Water consumption per total revenue increased by 3.4%
All water used by the hospital is freshwater supplied by the public water utility. The increase was mainly due to the full operation of Building C, the expansion of green spaces, and increased medical activities requiring higher water use.
Total Water Consumption Year 2022-2025
| Total Water Consumption | Unit | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Total Water Withdrawn | Cubic Meters | 145,742 | 143,955 | 144,223 | 194,032 |
| Water Consumed | Cubic Meters | 35,667 | 36,791 | 18,294 | 29,841 |
| Water Discharged | Cubic Meters | 112,175 | 107,164 | 125,929 | 164,191 |
Wastewater Discharge Data and Water Quality Monitoring
| Type | Unit | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Wastewater Treated | Cubic Meters | 112,175 | 107,164 | 125,929 | 164,191 |
| Discharged into public drainage system | Cubic Meters | 112,175 | 107,164 | 125,929 | 164,191 |
Remark :
- Wastewater quality complies 100% with the effluent standards as prescribed by the Ministry of Natural Resources and Environment on an annual basis.
- Effluent quality analysis is conducted quarterly by ALS Laboratory Group (Thailand) Co., Ltd., an accredited laboratory.
Wastewater Recycling Data
| Project | Unit | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Wastewater management by reusing treated water for plant irrigation | Cubic Meters | 540 | 540 | 1,007 | 917 |
| Water Recycling Rate | % | 0.48 | 0.50 | 0.80 | 0.56 |
Water Management and Development Approaches
Stakeholders Directly Impacted
Employees
Customers
Suppliers
