Water can look clear and still contain substances you cannot see, smell, or taste. For homes, apartments, and businesses, the right tests depend on where the water comes from and how it will be used. Borewell water, tanker water, and municipal supply can each raise different questions. This guide explains what to check before using water for drinking, cooking, or daily operations. Start with the source and intended use Before sending a sample to a laboratory, note whether the water comes from a borewell, tanker, municipal line, storage tank, or a combination of sources. Also explain whether it is intended for drinking, food preparation, cleaning, irrigation, or an industrial process. These details help the laboratory recommend relevant parameters. A basic drinking water assessment will not necessarily answer every question about water used in a boiler or production line. What should you test in borewell water? Groundwater quality can vary from one location to another. Borewell water ma...