Introduce of safe water supply, hygienic sanitation & drainage system in Pourashavas of Bangladesh by DPHE

The Government of Bangladesh is emphasizing the importance of water supply and sanitation for protection of environment leading to improved health status and thus the sector is considered as the top priority one. The water supply and sanitation system of newly created Pourashava is not adequate to meet the public demand. So it is required to develop the water supply and sanitation system in the Pourashava.

At present total number of Pourashava are 310 out of which 58 are district level, 219 are Upazila level and 33 are growth centre level. Till now 130 Pourashava has brought under piped water supply system and the Government has decided to cover the remaining Pourashavas phase by phase by 2013.

In view of the above the Department of Public Health Engineering has taken up the Project “Groundwater Management and TPP for Survey, Investigation and Feasibility Study in Upazila and Growth Center Level Pourashava having no Piped Water Supply System” covering 148 Pourashavas with JDCF funding (GOB). The Project (TPP) was approved on 04-11-2007 costing Tk. 10014.60 lakh with duration from January, 2007 to June, 2011 (Extended up to June, 2013).

Objectives of the study

Identify safe source regard to chemical especially arsenic contamination, conduct feasibility study for determining ground/surface source, determine water demand, prepare environmental impact assessment and prepare a master plan for each town.

Scope of work

Total 148 numbers of Pourashavas are included in the project. The project commenced on 17 January 2010 and is scheduled for completion by 42 month. The project is divided into 4 Phases. A list and a map showing location of the Pourashavas is given below.

The project is to be completed in four phase as under:

• Phase-1 : 12 Pourashavas.
• Phase-2 : 37 Pourashavas.
• Phase-3 : 49 Pourashavas.
• Phase-4 : 50 Pourashavas.

To achieve the objective of the project, it is divided into two components and the task has been assigned to two groups of consultants. The components are:

·Component 1 Mathematical Modelling involves development of database and models and produce various parameters generated from outputs, which will be utilized for the feasibility study for Safe Drinking Water Source Identification; and

·Component 2 Socioeconomic Study, EIA and Detail Engineering Survey Investigation and Design involve social, environmental and engineering surveys, hydro geological investigations. It will prepare master plan for each Pourashava for water supply, sanitation and drainage improvement.

For better management and monitoring the Project activities a Steering Committee (SC) and a Project Implementation Committee (PIC) are formulated. This committee held their meeting with due interval and monitor the project activities/progress regularly.

Present status of the Project

Under the Project 1^st Phase works is likely to be finished by February, 2011 and simultaneously works of Phase-II are going on. Inception reports and quarterly progress report has been submitted by the consultants. Hydro geological investigation and other related items of works are in progress. The item of works achieved/going on under the Project till date is as follows:

(a) Water Supply Study

• Collection of construction record of existing PWs. -Achieved
• Design and layout of observation wells for aquifer test in existing PWs. -Achieved
• Aquifer test data processing, analysis and interpretation. -Ongoing
• Ground Water Modeling. -Ongoing
• Ground Water Resource assessment and safe yield quantification. -Ongoing
• Collection of Hydrometric data from secondary sources. -Achieved
• Surface water model data preparation, model development and calibration. -Ongoing
• Scenario runs, dependable flow analysis and assessment of surface water resources for water supply. -Ongoing
• Topographic Survey. -42 completed out of 148
• Collection and mapping water supply data. -12 completed out of 148
• Water supply demand assessment. -Ongoing
• Water distribution model data preparation, model development and calibration. Ongoing
• Water supply Scenario runs, planning and design of water supply components. Ongoing
• Socio-economic and EIA baseline survey. -Ongoing
• Expletory drilling & geophysical logging. -Complete 18 Pourashava out of 148
• Construction of monitoring wells. -Ongoing
• Ground Water quality analysis. -12 pourashava completed (1^st phase)
• Design, drawing and technical specifications of PW. -Ongoing
• Water supply strategy. -Ongoing
• Water supply master plan. -Ongoing

(b) Drainage Study.

• Collection of Hydrometric data from secondary sources. -Complete
• Hydrometric and hydrometeorology measurement. -Ongoing
• Data analysis and model set-up. -Ongoing
• Model calibration and option study. -Ongoing
• Generation of hydraulic design parameters of drainage infrastructure. -Ongoing
• Civil design of drainage infrastructure. -Ongoing
• Technical specifications. -Ongoing
• Drainage master plan. -Ongoing

(c) Sanitation Study.

• Secondary data collection on sanitation and solid waste disposal). -Completed
• Topographic survey. -42 pourashava out of 148
• Collection and mapping of sanitation data. -Ongoing
• Drainage model calibration and option studies: will reflect sewerage system need/environmental sanitation. -Ongoing
• Generation of hydraulic design parameters of sewerage/environmental sanitation infrastructure. -Ongoing
• Meeting with LGI, local stockholders NGOs/CBOs and collection of primary data on prevailing sanitation situation and solid waste disposal mechanism practiced. -Ongoing
• Socio-economic SIA and EIA baseline survey. -1^st & 2^nd phase completed
• Analyze finding of baseline survey and FGDs and consultation process with LGI on total sanitation and mechanism for safe waste management. -Ongoing
• Utilize finding from drainage model for development of option studies for total sanitation practice and solid waste management. -Ongoing
• Development of total sanitation practice options and safe waste disposal management intervention in coherence with drainage infrastructure. -Ongoing
• Civil design of adaptable total sanitation practice and solid waste management infrastructure. -Ongoing
• Technical specifications on total sanitation and solid waste management infrastructure.-ongoing
• Master plan for ensuring total sanitation and solid waste management in Pourashava.-Ongoing

The Government of Bangladesh is emphasizing the importance of water supply and sanitation for protection of environment leading to improved health status and thus the sector is considered as the top priority one. The water supply and sanitation system of newly created Pourashava is not adequate to meet the public demand. So it is required to develop the water supply and sanitation system in the Pourashava.