Auxiliary cross connections oversight is typically by which entity?

• A. Primary agency
• B. Secondary agency
• C. Local advisory committee
• D. Federal EPA

Answer: (A)

Oversight of auxiliary cross connections is handled by the primary agency responsible for drinking water regulation in a jurisdiction. This agency has the lead role to establish cross-connection control requirements, approve backflow prevention assemblies, conduct inspections, and enforce compliance to prevent backflow contamination.

Secondary agencies may assist or coordinate, but they don’t carry the primary regulatory authority. A local advisory committee might provide guidance but does not enforce regulations. The federal EPA sets broad standards and guidance, but day-to-day oversight and enforcement of cross-connection controls are carried out by the primary state/local regulatory authority.