How should water quality be managed after a disaster event?

• A. Monitor source water; maintain disinfection residuals; issue boil notices if needed; collect samples per regulatory protocol; coordinate with the water utility.
• B. Only rely on personal perception of taste.
• C. Immediately replace all water without testing.
• D. Focus on color changes in water.

Answer: (A)

After a disaster, protecting drinking water quality relies on a systematic approach: continuously monitor source water to detect contamination early; maintain disinfection residuals in the distribution system so water remains protected as it moves to customers; issue boil-water notices if testing shows potential contamination or during system restoration to ensure safety; collect water samples per regulatory protocol to verify safety and guide actions; and coordinate with the water utility to ensure coherent response, communication, and use of resources. Relying on taste is not reliable because pathogens and contaminants may be undetectable by taste or appearance. Replacing all water without testing is wasteful and may still miss hidden risks, and focusing only on color changes ignores microbial and chemical threats that require proper testing and assessment.