National Primary Drinking Water Regulations | US EPA Maximum Contaminant Level (MCL) - The highest level of a contaminant that is allowed in drinking water MCLs are set as close to MCLGs as feasible using the best available treatment technology and taking cost into consideration MCLs are enforceable standards
Drinking Water Regulations and Contaminants | US EPA Regulation Timeline: Contaminants Regulated Under the Safe Drinking Water Act; Read more information about NPDWRs in the Code of Federal Regulations; List of Primary Drinking Water Contaminants and their Maximum Contaminant Levels (MCLs) Table of Regulated Drinking Water Contaminants
Secondary Drinking Water Standards: Guidance for Nuisance Chemicals An MCL is the maximum allowable amount of a contaminant in drinking water which is delivered to the consumer In addition, EPA has established National Secondary Drinking Water Standards that set non-mandatory water quality standards for 15 contaminants EPA does not enforce these "secondary maximum contaminant levels" (SMCLs)
Chemical Contaminant Rules | US EPA The Chemical Contaminants Rules also set Maximum Contaminant Level (MCL) for each contaminant EPA sets MCLs as close to the health goal as possible The MCL weighs the technical and financial barriers with public health protection The following link is a table of all regulated drinking water contaminants: Contaminants with established MCLs
Drinking Water Regulations | US EPA EPA sets legal limits on over 90 contaminants in drinking water The legal limit for a contaminant reflects the level that protects human health and that water systems can achieve using the best available technology
National Primary Drinking Water Regulation Table | US EPA Table showing contaminants, MCL or TT, potential health effects from long term exposure above MCL, common sources of the contaminant in drinking water, and the public health goal
How EPA Regulates Drinking Water Contaminants | US EPA EPA has drinking water regulations for more than 90 contaminants The Safe Drinking Water Act (SDWA) includes a process that EPA must follow to identify and list unregulated contaminants This process may lead to development of a national primary drinking water regulation (NPDWR) in the future
2018 Edition of the Drinking Water Standards and Health Advisories . . . Goals (MCLGs) for some regulated drinking water contaminants are also published HAs serve as the informal technical guidance for unregulated drinking water contaminants to assist Federal, State and local officials, and managers of public or community water systems in protecting
U. S. EPA National Primary Drinking Water Regulations National Primary Drinking Water Regulations are enforceable drinking water standards expressed as Maximum Contaminant Levels (MCLs) or treatment technique requirements The MCL is the maximum permissible level of a contaminant in water which is delivered to
Maximum contaminant level - Wikipedia Maximum contaminant levels (MCLs) are standards that are set by the United States Environmental Protection Agency (EPA) for drinking water quality [1] [2] An MCL is the legal threshold limit on the amount of a substance that is allowed in public water systems under the Safe Drinking Water Act (SDWA)