What is a backflow and a cross-connection? Why the concern about cross-connection and backflow prevention?

Backflow is the undesirable reversal of flow of non-drinkable water or other substance into the public water system or consumer's drinking water system. A cross-connection is any connection between a public water system or consumer's potable water system and non-potable water or other substance. An example is the public water system and a homeowner's landscape irrigation system.

Only through cross-connection controls and backflow prevention can we be assured that other substances are not contaminating our water system. Chesapeake Public Utilities has an inspection program to ensure these protections are in place in commercial buildings and businesses. Homeowners may purchase devices for their outside hose faucets from hardware stores.

For more information about backflow and cross-connection contact Public Utilities Engineering at 757-382-3414.

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1. What are the water and sewer connection fees?
2. Are water and sewer available to a property?
3. Can a property connect to City water and sewer when the property does not have right-of-way frontage?
4. Do I have to connect to City water and sewer if they are available to my property?
5. How can I get City water and sewer?
6. Does the City have any plans to extend water and/or sewer to my neighborhood?
7. What is a backflow and a cross-connection? Why the concern about cross-connection and backflow prevention?
8. What is Virginia 811? What do the colored markings mean?