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The SDWA authorized the EPA to promulgate regulations regarding water supply. The major regulations are in Title 40 of the Code of Federal Regulations: 40 CFR Parts 141, 142, and 143. Parts 141, 142, and 143 regulate primary contaminants, implementation by states, and secondary contaminants.
Title 40 is a part of the United States Code of Federal Regulations. Title 40 arranges mainly environmental regulations that were promulgated by the US Environmental Protection Agency (EPA), based on the provisions of United States laws (statutes of the U.S. Federal Code). Parts of the regulation may be updated annually on July 1. [1]
EPA illustration of lead sources in residential buildings Infographic about lead in drinking water. The Lead and Copper Rule (LCR) is a United States federal regulation that limits the concentration of lead and copper allowed in public drinking water at the consumer's tap, as well as limiting the permissible amount of pipe corrosion occurring due to the water itself. [1]
The Safe Drinking Water Act (SDWA) is the primary federal law in the United States intended to ensure safe drinking water for the public. [3] Pursuant to the act, the Environmental Protection Agency (EPA) is required to set standards for drinking water quality and oversee all states, localities, and water suppliers that implement the standards.
Drinking Water: Maximum contaminant level = 0.002 mg/L (40 CFR 141.62) Maximum contaminant level for mercury established under the Safe Drinking Water Act; Groundwater: 2 μg/L; Bottled Water: 0.002 mg/L (21 CFR 103.35) Water-level of detect 0.2 μg/L (200 ng/L) = recommended method; EPA-approved method to detect Hg in water.
Drinking water quality in the United States is generally safe. In 2016, over 90 percent of the nation's community water systems were in compliance with all published U.S. Environmental Protection Agency (US EPA) standards. [1] Over 286 million Americans get their tap water from a community water system.
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).
It is possible to operate copper-silver ionization without exceeding the copper Action Level (AL) and silver secondary maximum contaminant levels (SMCLs) set by the U.S. Environmental Protection Agency in the Safe Water Drinking Act's Lead and Copper Rule (Title 40, Code of Federal Regulations, 40 CFR) in Part 141, Subpart I; and 40 CFR Part ...