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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]
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).
While performing research into premature pipe corrosion for the District of Columbia Water and Sewer Authority (WASA) in 2001, Marc Edwards, an expert in plumbing corrosion, discovered lead levels in the drinking water of Washington, D.C., at least 83 times higher than the accepted safe limit.
Emily Donovan, a Brunswick County resident who was one of the co-founders of Clean Cape Fear after learning about the contamination in Southeastern North Carolina’s drinking water in 2017 ...
The EPA has issued federal limits on dangerous "forever chemicals" in drinking water, which it says will save thousands of lives and prevent serious illnesses.
The S.C. Department of Health and Environmental Control is scrambling to assess how a tight new limit on forever chemicals in drinking water will affect utilities and the public.
Under the LCR, if tests show that the level of lead in drinking water is in the area of 15 ppb or higher, it is advisable—especially if there are young children in the home—to replace old pipes, to filter water, or to use bottled water. EPA estimates that more than 40 million U.S. residents use water "that can contain lead in excess of 15 ppb".
About four decades ago, when the Environmental Protection Agency was first trying to figure out what to do about lead in drinking water, Ronnie Levin quantified its damage: Roughly 40 million ...