Below you will find many terms and abbreviations you might not be familiar with. To help you better understand these terms we’ve provided the following definitions:
- Curie: a unit of measurement of radioactivity
- Maximum Contaminant Level (MCL) (Mandatory language): the “Maximum Allowed” is the highest level of a contaminant that is allowed in drinking water. MCLs are set close to the MCLGs as feasible using the best available treatment technology.
- Maximum Contaminant Level Goal (MCLG): The “Goal” is the level of a contaminant in drinking water below for which there is not known or expected risk to health. MCLGs are allowed for a margin of safety.
- Maximum Residual Disinfectant Level: Comparable to MCLs, but refer to disinfectants.
- Maximum Residual Disinfectant Level Goals: Comparable to MCLGs, but refer to disinfectants.
- Non-Detects (ND): laboratory analysis indicates that the constituent is not present.
- Parts per billion (ppb) or Micrograms per liter: One part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000.
- Pico: One trillionth (1012).