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ECU owns and operates an 18 MGD state-of-the-art water treatment facility that furnishes all of the drinking water its 13,300 retail water customers. Raw water is provided by the Saluda Lake, a 330 acre impound of the Saluda River located on Greenville, Pickens County line. ECU has an emergency connection with the Greenville Water System for emergency water supply.


ECU also provides wholesale drinking water to four water districts located in Pickens and Anderson Counties. ECU has a combination of ground level storage and elevated water storage totaling 15.5 million gallons. ECU serves its 13,300 customers with 234 miles of water line.

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Cross Connection & Backflow Prevention

What is Backflow?

Backflow is the reversal of the flow of water or a mixture of water and other undesirable substances from any source into the distribution pipes of the potable water system. It can be dangerous because it can allow drinking water to become contaminated.


To prevent this from happening, SCDHEC regulations require, as a minimum, dual check valve backflow assemblies to be installed on residential lawn sprinkler systems. 

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