What is the maximum contaminant level goal for chloride?

The maximum contaminant level goal (MCLG) for chloride is established to protect public health and ensure safe drinking water. Chloride, found in natural sources and as a result of human activities, can indicate water quality issues when present in high concentrations.

An MCLG of 250 mg/L reflects a concentration level that balances health considerations with practical detectability. At this level, adverse health effects related to chloride consumption are minimized, while also taking into account that chloride itself is not considered a health hazard at low levels but may affect the taste and corrosion of pipes at higher concentrations.

Maintaining chlorides within the MCLG helps ensure the water remains palatable and prevents issues such as "salty" tastes and potential corrosion in water distribution systems. Therefore, the decision to set the MCLG at 250 mg/L incorporates both health guidelines and aimed public safety measures for maintaining water quality standards.