MCLG stands for what?

The term MCLG stands for Maximum Contaminant Level Goal. This is an important concept in water quality regulation that refers to the maximum level of a contaminant in drinking water that is considered acceptable for health reasons. Unlike regulatory standards, which are enforceable, MCLGs serve as health-based benchmarks. They are set based on health effects and do not take into account economic or technical feasibility.

MCLGs are used by the Environmental Protection Agency (EPA) to help protect public health by ensuring that drinking water is kept safe from harmful substances. Since MCLGs have no legal enforcement power and are not subject to cost considerations, they reflect the best achievable health outcomes based on current scientific understanding.

In the context of the choices, while the other terms are similar, they do not accurately represent the definition of MCLG. The focus on "Goal" in the correct answer emphasizes its purpose in health safety rather than a regulatory enforcement mechanism.