What is a cross-connection?

A cross-connection is a connection of a potable water system to a non-potable system or a system of questionable water quality.

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1. What is a cross-connection?
2. What is backflow?
3. What causes backflow?
4. Can cross-connections be hazardous?
5. What can be done to prevent contamination of our public water systems due to cross-connections?
6. How does the water distribution system become contaminated?
7. Where can I find information on the Cross Connection Control Program?