Improving public sanitation and providing a clean water supply always prevent most water borne diseases and deaths. Therefore, it is necessary to test the drinking water sources for any contamination's and thereby carrying any diseases. At present there is no book in the market giving details about the methodology and reporting of the findings which can be used as a study material for testing safety of drinking water resource from any place in the world.This book provides the investigatory information about the various analytical physico-chemical parameters ,especially pH , T.D.S., Total Hardness, Chloride, Turbidity, Calcium Hardness, Total Alkalinity, Silica and C.O.D. of water. This indispensable source book would be unique in the world for all sectors and helpful to those who are curious for searching the safety parameters of drinking water specially the Educational institutions, Government agencies, Non-Government Organizations (NGOs), Voluntary Societies, Researchers, Health workers, Technical persons, Students, Villagers, Farmers, etc. The results mentioned here are the conclusions made by the authors which may vary in different environmental conditions.