85 SUSTAINAB I L I TY Report 2022 APPENDIX THREE: RWT COMPLIANCE TO REGULATORS’ KPIS REGULATORY COMPLIANCE (THAILAND WATER OPERATIONS) As in previous years, RWT’s WTP and WWTP operations in Thailand have continued to meet or exceed standards set out by the Thai regulatory authorities. LIST OF CONCESSION/O&M THAILAND Target Actual YTD January 2023 YTD December 2022 Amata City Chonburi Industrial Estate WTP-2CB Stage 1 & Stage 2 (Concession) Color 15 10 5 Turbidity 4 0.66 0.94 pH range 6.5 - 8.5 7.50 7.20 Total Solids 600 392 296 Influent Compliance 100 100 100 Amata City Chonburi Industrial Estate WWTP-1CB (Concession) Color 300 N / A N / A pH at 250C 5.5 - 9 6.80 7.10 Total Dissolved Solids 3,000 1,222 1,236 Suspended Solids 50 6.0 6.0 BOD (5 days, at 200C) 20 <2 10.0 COD 120 37 52 Total Kjeldahl Nitrogen as N 100 2.10 4.00 Oil & Grease & Fat 5 <3 <3.0 Effluent Compliance 100 100 100 Amata City Chonburi Industrial Estate WRTP-1CB (Concession) Color 15 5 5 Turbidity 4 0.50 0.50 pH range 6.5 - 8.5 7.00 7.10 Dissolved Solids 600 500 432 Influent Compliance 100 100 100 Amata City Rayong Industrial Estate WTP-2RY (Concession) Color ≤ 15 5 5 Turbidity 4 0.75 0.50 pH range 6.5 - 8.5 7.40 7.60 Total Solids ≤ 600 128 152 Influent Compliance 100 100 100
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