Which term describes water that is not safe for drinking or personal use?

The term that accurately describes water that is not safe for drinking or personal use is "Non-Potable Water." Non-potable water is specifically designated as water that has not been treated to remove harmful contaminants, making it unsuitable for human consumption or personal hygiene. This classification encompasses water sources that may include pathogens, heavy metals, or other pollutants that pose health risks.

Other terms may describe aspects of water quality but do not specifically indicate unsafety for drinking. For instance, "Unsafe Water" is somewhat vague and can refer to various conditions of water safety; it is not a standard term used in water quality classifications. "Contaminated Water" implies the presence of harmful substances but does not necessarily mean that the water cannot be used for anything other than drinking. "Raw Water" refers to untreated water, which might be safe in certain contexts, like agricultural or industrial use, but it does not definitively mean that the water is unsafe for drinking.

Understanding these distinctions is crucial in plumbing and public health, as they help inform decisions regarding water use, treatment, and safety standards.