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.