What does MCLG stand for in terms of drinking water safety?

MCLG stands for Maximum Contaminant Level Goal, which is a key concept in drinking water safety. This term refers to the maximum concentration of a contaminant in drinking water that is deemed safe for human health, based on scientific research and health standards.

MCLGs are non-enforceable health goals set by the Environmental Protection Agency (EPA), designed to protect public health by considering the potential risks associated with exposure to various contaminants. These goals are based on the best available science and aim to identify thresholds below which no known or anticipated adverse health effects occur. Importantly, MCLGs do not account for costs and technical feasibility, which are considered in the establishment of enforceable Maximum Contaminant Levels (MCLs).

Understanding MCLGs is essential for water quality professionals to assess and ensure the safety of drinking water supplies, and it reinforces the standard that public health considerations are paramount in the regulatory framework surrounding water contaminants.