Carbon tetrachloride is an industrial solvent that can enter water from chemical spills. It damages the liver and kidneys and is a potential carcinogen.

Carbon tetrachloride is a volatile organic compound once widely used in industry and consumer products. Banned for most uses in the 1970s, it can still contaminate water through industrial spills or improper disposal. This colorless, sweet-smelling liquid is measured in parts per billion (ppb). The EPA has set a maximum contaminant level of 5 ppb in drinking water due to its health risks. Regular testing helps ensure water supplies remain safe from this historical pollutant.