The book titled Field Methods for Microbiological Water Quality Testing in Emergencies to provide concise notes and procedures for Health Workers and relief personnel in emergencies on how to cary out simple microbiological water quality testings where there is no functional laboratory and no power supply to prepare the regent and incubate the water sample to determine the level of contamination of drinking water source.the book contain flowchart in how to carry out the procedure using the human body heat to incubate the bacteria using available rapid testing materials li9ke petrifim and colilert procedures instead on depending on conventional incubator equipment that require power supply and functional laboratory and high level of training and professionalism