What is the purpose of a total dissolved solids (TDS) test?

The purpose of a total dissolved solids (TDS) test is to measure the combined content of all inorganic and organic substances dissolved in water. This is crucial because TDS includes a wide range of compounds, such as minerals, salts, and organic matter, which can significantly affect both the quality and taste of the water. High TDS levels may indicate an issue with water quality and potential contamination, while low levels can suggest cleaner water.

Understanding the total dissolved solids provides insight into the overall water chemistry and helps in evaluating the suitability of water for various uses, including drinking, agricultural, and industrial applications.