Table E- 0 - 12 in Saidabad Water Treatment Plant Project, Phase III

Table E-0-12: Monitoring of water quality and sludge during operational phase of proposed WTP (Originally Table 9) MonitoringWater Quality / Other ParametersMonitoring FrequencyRaw waterpH, Colour, Turbidity, Ammonia, Nitrate, Phosphate, Sulphate, TC, FCDailyLead, Chromium, Mercury, Cadmium, Total Suspended Solids, COD, BOD5, Oil & greaseOnce a monthTreated waterpH, Colour, Turbidity, Ammonia, Nitrate, Residual Chlorine, TC, FCDailyBOD5, COD, Aluminium, Total Dissolved SolidsOnce every two monthsDewatered sludgeTCLP test and determination of Al, Pb, Cr, Cd in TCLP extractOnce every three monthsLiquid residuals from dewatering operationpH, Ammonia-N, BOD5, COD, Cd, Cr, Mercury, Chloride, Total Dissolved Solids, Total Suspended Solids, Nitrate, SulphideOnce a month Notes: (1) The parameters listed above are based on water quality measurements of Meghna River as a part of this study. The list should be updated based on monitoring results and information on possible pollution of river water by contaminants (e.g., from an industrial source). (2) Actual monitoring time and location will be decided by DWASA and the Design Supervision Consultant (DSC) and included in the Employer’s Requirements