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Power & Water News

Posted on: October 30, 2019

What about tap water?

Tap Water

 In Marietta, our water comes from two sources, the Chattahoochee River and Lake Allatoona.  Raw water is taken from these sources and treated by the Cobb County- Marietta Water Authority (CCMWA). Marietta Water takes that treated water and delivers it to all of our customers, straight to your tap,  Our drinking water meets or exceeds all state and federal water quality regulations set by the U.S. Environmental Protection Agency (EPA) and the Georgia Environmental Protection Division (EPD). Under EPA and EPD, water produced by CCMWA—and other public water systems—is more highly regulated and receives much more oversight than that sold in bottles.  The water delivered to your tap is continuously monitored from the source to the tap to ensure safety and quality assurance.  

The United States enjoys one of the world's most reliable and safest supplies of drinking water. Congress passed the Safe Drinking Water Act in 1974 which regulates the quality of tap water provided by water utilities such as Marietta Water.  The SDWA is dynamic in that it requires EPA to review every national primary drinking water regulation (including Maximum Contaminant Levels, or MCLs) at least once every six years and revise them, if appropriate. The EPA is required to consider three criteria when deciding whether to regulate a contaminant:

  • The contaminant may have an adverse effect on the health of persons
  • The contaminant is known to occur or there is a high chance that the contaminant will occur in public water systems often enough and at levels of public health concern
  • Regulation of the contaminant presents a meaningful opportunity for health risk reductions for persons served by public water systems

For additional information, see our FAQ's about tap water.

Additional Info...
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