What is a Cross Connection?
A cross connection is formed at any point where a drinking water line connects to equipment, a system containing chemicals, or water of questionable quality, and backflow may occur into the drinking water line.
Cross Connection Hazards
Some examples of where cross connections may occur are at boilers, air conditioning systems, fire sprinkler systems, irrigation systems, laboratory equipment, plating tanks, or chemical vats.
In residences, a common offender is the ordinary garden hose attached to a container with garden chemicals. The garden hose can easily be connected to the potable water supply (faucets of household plumbing) and used for a variety of potentially dangerous applications. Another example is the garden hose connected to a water tap with the end of the hose inserted into a pool or other external source.
If you are an owner of industrial, institutional or commercial property you must have your facility’s internal plumbing surveyed for cross connection hazards and install proper backflow devices or eliminate cross connections entirely.
For More Information:
Contact the Commission’s Cross Connection Control Program at 413-310-3450.