Lake Springfield is the source of Springfield's domestic water supply. It provides drinking water to over 155,000 people who, altogether, use an average of over 22 million gallons of water each day. Water taken from the lake undergoes a rigorous purification and testing process—to ensure it is free of harmful bacteria and particulate matter—before being distributed for domestic use to the utility's water customers.

In spite of CWLP's efforts to produce pure, safe drinking water, Springfield's drinking water can be placed at risk by contaminants that "backflow" into the system from our customers' homes or businesses. It's up to all customers to take the necessary steps to protect our water supply from this type of problem by making sure their plumbing systems are equipped with working backflow prevention devices. For more information about backflow contamination and how you can help prevent it, see our online pamphlet, Protecting Against Backflow Contamination.

To view the pamphlet—Protecting Against Backflow Contamination—online, your computer must be equipped with Adobe Acrobat or Adobe Acrobat Reader. For a free copy of Adobe Acrobat Reader, click on this icon:

For more information about CWLP's water purification process, or about the Water Division in general, select any of the topics or subtopics listed in the left-hand column of this page.

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Last update: 07/29/10