WELL Factsheet: Field water quality testing in emergencies

In many emergency situations it is necessary to undertake rapid assessment of water sources to determine their suitability for the supply of drinking water to affected communities. A key aspect of this assessment is to determine the microbiological quality of the water in order to determine the water treatment requirements. Most conventional methods of microbiological water quality field testing rely on membrane filtration which is relatively difficult to apply in a precarious field situation and requires significant training in the operation of equipment. There are, however, alternative methods available on the market which offer improved ease of use. This factsheet describes some of the key options available, with their advantages and limitations, and outlines a recommended field approach for microbiological water quality testing in emergencies.

Produced by WEDC and the London School of Hygiene and Tropical Medicine for the Department of International Development (DFID) of the UK government (now the Foreign, Commonwealth & Development Office (FCDO)), this archive collection of WELL factsheets remains relevant. It covers topics ranging from the anaerobic treatment of municipal wastewater through to water quality and safety plans.