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What is a cross-connection?

A. A pressure gauge on a high-temperature warewashing machine
B. The spread of allergens from one food item to another
C. A link from a potable water system to a nonpotable water system
D. The open space between the floor drain and the drainpipe of a sink

Answer :

Final answer:

A cross-connection is a link between a potable and nonpotable water system, posing contamination risks. A pertinent example is using nonpotable water tools that can unintentionally infect drinking water. Proper separation is essential for health safety.


Explanation:

What is a Cross-Connection?

A cross-connection refers to a link between a potable water system (safe, drinkable) and a nonpotable water system (unsafe for drinking). This connection poses a significant risk of contamination, particularly if the nonpotable source becomes pressurized and allows harmful substances to enter the potable system.

For example, if a garden hose that is used for watering plants (which may be contaminated with fertilizers or pesticides) is left in a bucket of drinking water, a cross-connection is formed. If backflow occurs, these contaminants can mix with drinking water, leading to health risks. Therefore, maintaining a separation between potable and nonpotable water systems is crucial in preventing such hazards.


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