Exploring suitable sites for installing safe drinking water wells in coastal Bangladesh

2018 ◽  
Vol 7 ◽  
pp. 91-100 ◽  
Author(s):  
Ratnajit Saha ◽  
Nepal C. Dey ◽  
Sajidur Rahman ◽  
Lakshman Galagedara ◽  
Prosun Bhattacharya
Keyword(s):  
Drinking Water ◽  
Safe Drinking Water ◽  
Coastal Bangladesh ◽  
Water Wells

scholarly journals Households’ Willingness to Pay for Disaster Resilient Safe Drinking Water Sources in Southwestern Coastal Bangladesh

2019 ◽  
Vol 10 (4) ◽  
pp. 544-556 ◽  
Author(s):  
Md. Sariful Islam ◽  
Sonia Afrin ◽  
Md. Nasif Ahsan ◽  
Mohammed Ziaul Haider ◽  
Tasnim Murad Mamun ◽  
...  
Keyword(s):  
Drinking Water ◽  
Willingness To Pay ◽  
Contingent Valuation Method ◽  
Water Sources ◽  
Maintenance Cost ◽  
Safe Drinking Water ◽  
Present Value ◽  
Coastal Bangladesh ◽  
Drinking Water Sources ◽  
The People

Abstract Nonfunctionality of engineered water sources after two catastrophic cyclones—Sidr in November 2007 and Aila in May 2009—created acute scarcity of safe drinking water in coastal Bangladesh. The objective of this study was to estimate households’ willingness to pay (WTP) for disaster resilient water sources in Dacope upazila of Khulna District in southwestern coastal Bangladesh. By applying the double bounded dichotomous contingent valuation method to a dataset of 250 randomly selected households, we found that the mean WTP is BDT 263 and that inaccessibility to functional safe drinking water sources is the most significant determining factor of households’ WTP. Projecting mean WTP for a disaster resilient water source project in the study area, we measured a present value of aggregate WTP over project’s life span worth about BDT 624 (USD 7.37) million, which is about 14.30 times the present value of project’s aggregate establishment and maintenance cost. However, charging the local inhabitants a water tariff at mean WTP would lead to the exclusion of around 50% of the people from getting access to the improved water services or create a free riding problem. Through simulation exercises this study determined that the socially optimal water tariff is BDT 50 per month. This tariff would not only generate revenue of more than five times the project cost but would also create access to disaster resilient improved drinking water sources for almost 99% of the people.

scholarly journals Drinking water in Michigan: source, quality, and contaminants

2006 ◽  
Vol 4 (S1) ◽  
pp. 67-73 ◽  
Author(s):  
Vincent R. Nathan
Keyword(s):  
Drinking Water ◽  
The State ◽  
Local Health ◽  
Health Departments ◽  
Safe Drinking Water ◽  
Local Health Departments ◽  
Community Programs ◽  
Regulatory Requirements ◽  
Water Wells ◽  
Private Wells

The Michigan Safe Drinking Water Act (Act 399) was enacted in 1976 and enables the Michigan Department of Environmental Quality (DEQ) to maintain the state's authority over drinking water in the state. The DEQ also contracts with local health departments to maintain non-community programs in each county. Private water wells throughout the state are clearly the most troublesome for users and regulators. An abundant array of contaminants (e.g., pesticides, metals, etc.) may impact wells without the user's knowledge. Most private wells are only inspected when they are installed and have no further regulatory requirements. With regards to contaminants in public systems, lead is problematic. Irregardless of the source or treatment, the piping infrastructure leading to and inside the home can be a source affecting the quality. Thus, the problem of lead in drinking water can be from the service lines, the pipes inside the home, the solder connecting the pipes, or in some case the treatment chemicals used for disinfection.

scholarly journals Water quality of small-scale desalination plants in southwest coastal Bangladesh

2017 ◽  
Vol 18 (5) ◽  
pp. 1606-1616 ◽  
Author(s):  
Md. Atikul Islam ◽  
Md. Ali Akber ◽  
Prosun Kumar Ghosh
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Samples ◽  
Small Scale ◽  
Feed Water ◽  
Safe Drinking Water ◽  
Coastal Bangladesh ◽  
Product Water ◽  
Desalination Plants

Abstract Southwest coastal Bangladesh has an acute scarcity of safe drinking water. Both the government and non-government organizations are now promoting reverse osmosis based small scale desalination plants (SSDPs) to ensure safe drinking water. The aim of this study was to assess the physico-chemical and bacteriological quality of the desalination plants (DPs) installed in southwest coastal Bangladesh. Water samples were collected from the inlet and outlet of 10 DPs. The product water mostly complied with water quality standards. High levels of total dissolved solids (TDS) and electrical conductivity (EC) in feed water were reduced significantly after the treatment, although 10% and 20% of the product water samples respectively did not comply with the WHO drinking water standards for those parameters. Compliance of product water with the WHO and Bangladesh drinking water standards for chloride, bicarbonate and sodium were found in respectively 80%, 90% and 70% of the samples, although their concentrations in all the feed water samples were higher than both of the standards. About one-third of the DPs did not meet the drinking water standard for sodium, which may be an important health concern for the people consuming this water. Apart from one of the DPs, all of them complied with the standard for faecal coliform and Escherichia coli. Results suggest that proper maintenance of the SSDPs is necessary to ensure safe drinking water for the coastal population of southwest Bangladesh.

Bacteriological assessment of aquifer storage and recovery (ASR) water in southwest coastal Bangladesh

2016 ◽  
Vol 6 (2) ◽  
pp. 231-241 ◽  
Author(s):  
Md. Pervez Kabir ◽  
Md. Atikul Islam ◽  
Md. Ali Akber ◽  
Md. Sabbir Ahsan
Keyword(s):  
Drinking Water ◽  
Pond Water ◽  
Aquifer Storage And Recovery ◽  
Safe Drinking Water ◽  
Aquifer Storage ◽  
Government Organizations ◽  
Coastal Bangladesh ◽  
Drinking Water Standard ◽  
Point Of Use

Safe drinking water is scarce in southwest coastal Bangladesh. Harvested rainwater and rain-fed pond water are the main sources of drinking water for people living in this area. Both government and non-government organizations are promoting aquifer storage and recovery (ASR) schemes to provide safe drinking water for this population. This study assessed the bacteriological quality of both source water and abstracted water from five ASR sites. Water sampling and laboratory analysis for indicator bacteria and physico-chemical parameters were conducted once every 2 months, over a period of 1 year. Samples were taken from source ponds, abstraction wells and household storage containers (point of use) for each of the ASR sites. Although the water from abstraction wells showed a 97% and 82% lowering of E. coli and Enterococci counts, respectively, from that of the source ponds, they did not satisfy the WHO drinking water standard. Moreover, the microbial quality of the water deteriorated at the point of use. This indicates the requirement for both in-house treatment and improved hygiene practice for consuming ASR water.

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