Green Practices Guideline for Services Sector

3.3. COMPUTATION The water saving for the reporting period can be calculated using the following equations: Percentage (%) of water saving = Total water consumed for   Total water consumed  the year of reporting (m 3 )  −  for the baseline year (m 3 ) Total water consumed for the baseline year (m³) Remark: Negative percentage (%) indicates there is savings, positive percentage (%) indicates there is no savings. 3.4. ASSUMPTIONS AND UNCERTAINTIES Any and all averaging approach to consumption data shall be noted and wherever practicably possible the uncertainties shall be quantified. Total water consumed for the reporting period shall be calculated based on the actual consumption of water for each month within the reporting period. In the event of data unavailability, average consumptions can be provided. Averaging approaches and assumptions made should be described in sufficient detail. Total water consumed for the year of reporting shall be calculated based on the actual consumption of water for each month within the reporting period. Each source of water should be calculated separately. 4. OTHER METHODOLOGICAL CONSIDERATIONS 4.1. COMMENT AND LIMITATION Not applicable. 4.2. VALIDATION Measurement and Verification (M&V) report to verify savings endorsed by a certified M & V professional. 4.3. QUALITY MANAGEMENT Not applicable. 5. REFERENCES 1. ISO 46001:2019 Water Efficiency Management System. 2. Green Technology Master Plan Malaysia 2017–2030. 3. The Sustainable Development Goals (SDGs). 92 GREEN PRACTICES GUIDELINE FOR SERVICES SECTOR