86 Ranhi ll Ut i l i t i es Berhad APPENDI X THREE : RWT COMPL I ANCE TO REGULATORS ’ KP I S THAILAND Target Actual YTD January 2023 YTD December 2022 Amata City Rayong Industrial Estate WWTP-2RY (Concession) pH at 250C 5.5 - 9.0 7.40 7.50 Total Dissolved Solids <3000 600 832 Suspended Solids <50 2.0 8.0 BOD (5 days, at 200C) <20 14.0 10.0 COD <120 35 82 Total Kjeldahl Nitrogen as N <100 7.70 6.60 Oil & Grease & Fat <5 <3.0 <3 Effluent Compliance 100 100 100 Amata City Rayong Industrial Estate WTP1/2-RY (Concession) pH at 250C 6.5 - 8.5 7.00 7.10 Turbidity 4 0.88 0.79 Colour ≤ 15 5 5 Total Dissolved Solids (TDS) ≤ 600 156 138 Total Hardness (as CaCO3) ≤ 300 49 44 Chloride (Cl) ≤ 250 22 22 Influent Compliance 100 100 100 Amata City Rayong Industrial Estate WWTP-4RY (Concession) Color 300 N / A N / A pH at 250C 5.5 - 9.0 7.00 7.20 Total Dissolved Solids <3000 1760 1862 Suspended Solids <50 20 35 BOD (5 days, at 200C) <20 12.0 10.0 COD <120 44 51 Total Kjeldahl Nitrogen as N <100 18.20 20.30 Oil & Grease & Fat < 5 2.0 <3 Effluent Compliance 100 100 100 Amata City Rayong Industrial Estate WWTP-4RY (Concession) pH 5.0 - 9.0 7.30 7.30 BOD <20 4.0 18 Total Suspended Solids <30 18.0 5 Total Dissolved Solids <500*** 400 316 Oil & Grease <5.0 <3 <3 Total Kjeldahl Nitrogen <35 21.00 9.80 Effluent Compliance 100 - 100 Amata City Rayong Industrial Estate WRTP2-RY (Concession) Color 15 5 5 Turbidity 4 0.50 0.50 pH range 6.5 - 8.5 6.70 7.20 Dissolved Solids 600 292 304 Influent Compliance 100 100 100
RkJQdWJsaXNoZXIy ODQxNzg=