4-21WATERDRAINAGEANDSAVINGItem20152014WaterDrainageSewageTreatmentCapacity(10000cu.m/day)439.5425.0Grade-IIandIIITreatment(10000cu.m/day)439.5425.0AnnualTreatmentVolumeofSewage(10000cu.m)1444531391...