Which term describes public health protections that limit contaminants in drinking water?

• A. Lead Pipe Leaching
• B. UV Exposure for Water Purification
• C. LifeStraw
• D. Safe Drinking Water Act

Answer: (D)

Public health protections that limit contaminants in drinking water come from a regulatory framework that sets allowable levels, requires regular monitoring, and enforces standards to keep water safe. The Safe Drinking Water Act is the key term here because it is the U.S. law that creates those standards, gives the EPA authority to set maximum contaminant levels, requires treatment and testing for public water systems, and ensures information about water quality is available to the public. The other items describe issues or tools related to water quality but do not embody the protective framework itself: lead pipe leaching is a contamination problem, UV exposure for purification is a treatment method, and LifeStraw is a personal filtration device.