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2. Drinking water quality in the United States - Wikipedia

   en.wikipedia.org/wiki/Drinking_water_quality_in...

   Appearance. 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.

3. Maximum contaminant level - Wikipedia

   en.wikipedia.org/wiki/Maximum_Contaminant_Level

   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). The limit is usually expressed as a ...

4. Lead contamination in Washington, D.C., drinking water

   en.wikipedia.org/wiki/Lead_contamination_in...

   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 leadlevels in the drinking waterof Washington, D.C., at least 83 times higher than the accepted safe limit. He found that the decision to change from chlorineto ...

5. EPA sets new, strict limits on forever chemicals in drinking ...

   www.aol.com/epa-sets-strict-limits-forever...

   Those that find high levels of PFAS will need to install treatment devices or switch their drinking water sources by 2029, the EPA said in a fact sheet. In North Carolina, 41% of the state’s ...

6. Safe Drinking Water Act - Wikipedia

   en.wikipedia.org/wiki/Safe_Drinking_Water_Act

   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 ...

7. CT Value - Wikipedia

   en.wikipedia.org/wiki/CT_Value

   CT Values are an important part of calculating disinfectant dosage for the chlorination of drinking water. A CT value is the product of the concentration of a disinfectant (e.g. free chlorine) and the contact time with the water being disinfected. It is typically expressed in units of mg-min/L. The goal of disinfection is the inactivation of ...