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Most households in the districts of Sri Lanka affected by the tsunami possessed drinking water wells, and these wells were contamina
Batch water treatment consists of the intermittent use of settling tanks for water clarification, and is a common treatment practice
A number of organizations engaged in tanker trucks to deliver water to populations affected by the 2005 tsunami in Indonesia.
In peri-urban Monrovia, contaminated hand-dug wells were contributing to cholera outbreaks.