A cross-connection is best defined as which of the following?
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AA fitting used to join four pipes at right angles
BAny physical link between a potable water system and any source of contamination
CA double-check valve assembly used to prevent backflow
DA pipe that crosses another pipe in the same trench
✓ Correct answer: B. Any physical link between a potable water system and any source of contaminationA cross-connection is any actual or potential link between the potable water supply and any source of pollution or contamination. Eliminating or protecting cross-connections is the goal of cross-connection control programs.
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