NCEES Fundamentals of Engineering (FE) Civil Practice Exam 2025 – Your All-in-One Guide to Engineering Success!

MCLG stands for Maximum Contaminant Level Goal. This term is used primarily in the context of drinking water safety regulations. The MCLG is a non-enforceable health goal set by the Environmental Protection Agency (EPA) for contaminants in drinking water. It represents the level of a contaminant in drinking water below which there is no known or expected risk to health, allowing for a margin of safety.

The significance of MCLG lies in its role in guiding water suppliers and regulators in ensuring that drinking water is safe and poses minimal health risks to the public. The goal is not enforceable and does not consider the feasibility of achieving the contaminant level; rather, it focuses solely on health protection. In contrast, Maximum Contaminant Levels (MCLs) are enforceable standards set to limit the amount of specific contaminants in drinking water, taking both health and technological feasibility into account.

The other options, such as Minimum Contaminant Level Goal, suggest a focus on the lowest permissible level, which is not in alignment with the purpose of MCLG. Likewise, terms like Maximum Chemical Level Gauge and Maximum Contaminant Limit Grade do not correspond to established terminology within water quality regulations.