UN-Water Regional Expert Consultation on Water Security in Asia-Pacific

9-10 November 2015, Bangkok, Thailand

Household Water Security in Dhaka, Bangladeshincluding access of population to adequate levels of

drinking water and sanitation services

S D M Quamrul Alam ChoudhuryDeputy Managing Director (O&M)

Dhaka Water Supply & Sewerage Authority

1963: DWASA started its journey with the mandate to provide water supply, disposal of domestic and industrial sewerage, storm water drainage and solid waste management (EP Ordinance No. XIX, 1963). In spite of broad mandates DWASA mainly dealt with the water supply, treatment and disposal of sewerage since its inception.

1989: Storm Water Drainage was transferred to DWASA

1990: Narayanganj water supply transferred to DWASA

1996: DWASA was reorganized to introduce Corporate management under WASA Act 1996 under which mandates for water supply, treatment and disposal of domestic and industrial sewage and storm water drainage were entrusted with DWASA.

Milestones

DWASA Responsibilities

Provide safe and sufficient water for drinking, industrial and commercial use

Ensure sanitation and good hygienic condition through proper disposal of domestic and industrial sewage

Ensure efficient storm-water drainage

Target 1By 2030, achieve universal and equitable access to safe and affordable drinking water for all

ensure safe, sufficient, affordable and reliable waterensure 24 hours pressurized water supply to all including LICs by 2020reducing dependency on GW sources to 30% by 2020Establish block tariffs by 2020reduce non-revenue water to 10% by 2030plan and policies to become financially sustainable private sector participation organizational reform for good water utility governancerecycling facilities in high-rise buildings and large structurescross subsidies

Water Supply Guiding Principles for DWASA

access to safe and sufficient water are recognized as human right

2010

2015

2020

2025

2030

Demand: 2120 MLDSupply: 1880 MLD

Demand: 2200 MLDSupply: 2420 MLD

83% GW17% SW

75% GW25% SW

59% GW41% SW

39% GW61% SW

30% GW70% SW

Demand: 3152 MLDSupply: 3306 MLD

Demand: 3598 MLDSupply: 3206 MLD

Demand: 4383 MLDSupply: 4156 MLD

NRWOperating Ratio

2008: 0.902015: 0.66

Strategy & Action Plan

Supply Sources in 2035

Sectorization and DMA8 Sectors 124 DMAs

achieved uninterrupted 24x7 water supply;about 3.31 million people have been benefitted with 24x7 water supply and improved pressure;illegal house connections getting regularized;increased revenue for DWASA; reduced water losses (from 1.59%- 14.06%) making more water available;assured good quality water (potable from tap without boiling or any further treatment);use of suction pumps on supply lines greatly reduced; reduced electric costs for consumers as well as for DWASA; andimproved social life and reduced health costs in the long-run.

Benefits from DMA implementation in about 30% of city area

Population density in Slum areas: 120,000 -160,000 per sq km

By 2016 all LIC areas will be brought under legalized water supply system

Presently, 80% of LICs are within DWASA service facilities

-

500

1,000

1,500

2,000

2,500

2015 2016-2025 2026-2035

192

2,008 1,972

Investment Requirement 2015-35

US$ 4 billion

Target 2By 2030, achieve access to adequate and equitable sanitation and hygiene for all and end open defecation, paying special attention to the needs of women and girls and those in vulnerable situations

Target 3By 2030, improve water quality by reducing pollution, eliminating dumping and minimizing release of hazardous chemicals and materials, halving the proportion of untreated wastewater and substantially increasing recycling and safe reuse globally

to reduce significantly, and, in the long-term, to eliminate the pollution arising from unhygienic disposal of wastewater, of all industrial, commercial and domestic origin, by 2030

Guiding Principles for DWASA

Existing Situation

(1)Many sewer lines blocked and SLS not functioning so most sewer overflow and run into road drainage

(2)Approximately half of this category has a septic tank which the wastewater pass before being discharged to the road drain. However septic tanks are not regularly emptied

(3)Small Bore system is not functioning and the area is not different from the road drainage category.

(4)Smaller per capita wasteater generation in informal settlements

Strategy of DWASA Regarding Level of Service by 2035

Density and type of settlement

Suggested Sanitation system

DWASA Service AreaHigh density(>30.000/km2), formal

Water borne separate sewerage system. Combined system may be considered in areas with insufficient space to install a separate system

High density (>30.000/km2), informal

Communal septic tanks.Small bore system may be considered if close to sewer main

Low density (<30.000/km2), formal

Septic tanks with on-site soakaways.Small bore system may be considered if close to sewer main

Greater Dhaka AreaUrban settlements, formal

Water-borne separate sewerage system.

Rural settlements, formal Septic tanks with on-site soakaways or sanitary latrines.

Action Plan: 2014-2020 – Priority Works

Dasherkandi STP and collection System : US$ 400 million

Upgrading & Expansion of Pagla STP: USD 22 million

Rehabilitation, expansion and new construction of SPS, Trunk sewer and collection system: US$ 45 million 47 million

Action Plan: 2015-2025

Est. Cost : US$ 1.2 Billion)

CatchmentDhaka North (Uttara): USD 137 MillionDhaka West (Mirpur): USD 226 MillionDhaka East (Dasherkandi): USD 202 MillionDhaka South (Pagla): USD 74 MillionRupganj: USD 97 MillionDND-Demra: USD 115 MillionNarayanganj: USD 186 Million

Rayerbazar: USD 147 Million

Action Plan: 2026-2035

Dhaka South (Pagla) Catchment: Construct 4th and 5th phases of Pagla STP trickling filter system (raising capacity at Pagla STP to 500,000 m3/day)Construction of Sewerage System, Transmission Mains and Treatment Plants:

• Gazipur/Tongi Catchment

• Savar Catchment• Keraniganj Catchment

Est. Cost : USD 433 Million

Dhaka WASA is well organized and focused to achieve the Sustainable Development Goals for the city and its inhabitants.

The water supply master plan, sewerage and sanitation master plan and storm-water drainage master plan of DWASA all leads to achieving the targets of the SDG by 2030.

Development partners have been supporting DWASA in its initiatives.

We need more support – near about US$ 7 billion by 2030 to achieve the targets

Conclusions

Thank You