(PDF) Urban Development and Water Supply System: A Case Study on Comilla City Corporation

The Nugget

  • Urban development and water supply are intricately linked. In Comilla City, rapid population growth and urban expansion outpace the development of a reliable water supply system, leading to significant shortages and health issues among residents.

Make it stick

  • 🚰 Water is life: Access to sufficient and safe drinking water is fundamental for improved quality of life in urban areas.
  • 🏗️ Urban expansion outstrips supply: Comilla City’s population is growing faster than its water infrastructure can support, causing widespread shortages.
  • ⚠️ 30% of families in slums face severe water shortages, impacting health and hygiene.
  • 🔄 Water supply is intermittent: Residents typically receive only 2-4 hours of water per day, insufficient for their needs.

Key insights

Water Supply System Overview

  • Comilla Municipality initiated water supply in 1925; however, the current system, managed by CoCC and DPHE since 2011, struggles to meet demand.
  • The geographical area of CoCC has expanded from 37.50 km² to 53.04 km² since 1982, but the water supply has not kept pace.
  • Over 30% of families in slums do not have adequate access to water, leading to severe health consequences.

Urbanization and Land Use Changes

  • Urban land use has shifted dramatically between 2001 and 2016, with 52% residential, 17% commercial, and 9% agricultural land.
  • As urban sprawl continues, 6.36 km² of agricultural land is lost per year.
  • The city’s future water demand is projected to significantly exceed current supply capacities.

Water Quality and Distribution Challenges

  • The daily water demand for Comilla is 1.5 crore liters, but supply is only 1.08 crore liters, resulting in a 27.73% deficit.
  • Quality issues include iron contamination and insufficient treatment processes, leading to public dissatisfaction.
  • Three distribution systems exist: gravity, direct pumping, and pumping with storage, but maintenance is poor, leading to inadequate service levels.

Key quotes

  • "Water supply is the basic responsibility of any city or town authority."
  • "Roughly 30% of families in slums suffer from acute water shortages."
  • "Despite ongoing urban expansion, water supply provisions have not increased at a comparable rate."
  • "Management of water supply systems often suffers from insufficient manpower and technology."
  • "Providing new water supply lines is considered essential to support the growth of water consumption demand."
This summary contains AI-generated information and may have important inaccuracies or omissions.