Which entity is required to comply with the SWTR if they use surface water?

• A. Any public water system using surface water
• B. DoD installations only
• C. Private wells only
• D. Bottled water producers

Answer: (A)

The main idea is that the Surface Water Treatment Rule applies to public water systems that draw water from surface sources (like lakes or rivers) and require them to treat that water to remove pathogens before delivery. Because the rule targets any public system using surface water, it covers all such systems regardless of ownership, so the broad statement is correct. Private wells aren’t covered because they are groundwater sources, and bottled water is regulated by the FDA, not the SWTR. DoD installations would be included only if they operate a public water system that uses surface water.