Table 11 - 7 in Saidabad Water Treatment Plant Project, Phase III

Table 11-7: Environmental (water quality and sludge) and Socioeconomic Monitoring during operational phase of proposed WTP (Original Table 47) Monitoring ItemsWater Quality / Other ParametersMonitoring FrequencyResponsibilityRaw waterpH, Colour, Turbidity, Ammonia, Nitrate, Phosphate, Sulphate, TC, FCDailyDWASALead, Chromium, Mercury, Cadmium, Total Suspended Solids, COD, BOD5, Oil & greaseOnce a monthDWASATreated waterpH, Colour, Turbidity, Ammonia, Nitrate, Residual Chlorine, TC, FCDailyDWASABOD5, COD, Aluminium, Total Dissolved SolidsOnce every two monthsDWASADewatered sludgeTCLP test and determination of Al, Pb, Cr, Cd in TCLP extractOnce every three monthsDWASALiquid residuals from dewatering operationpH, Ammonia-N, BOD5, COD, Cd, Cr, Mercury, Chloride, Total Dissolved Solids, Total Suspended Solids, Nitrate, SulphideOnce a monthDWASAEmployment of workforceOnce every Quarter and as directed by PDContractor’s responsibility, Supervised by the Design Supervision ConsultantDWASACommunity Health and SafetyOnce every Quarter and as directed by PDContractor’s responsibility, Supervised by the Design Supervision ConsultantDWASASurveys and interviews with local residents and businessesOnce in a year as directed by PDContractor’s responsibility, Supervised by the Design Supervision ConsultantDWASA (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.