In safeguarding groundwater during shelter operations, which practice directly reduces contamination risk?

• A. Monitoring spills and containment
• B. Use of uncontained waste near water sources
• C. Regular soil compaction in wells
• D. Proper latrine siting and containment

Answer: (D)

Safeguarding groundwater during shelter operations hinges on preventing contamination at the source: human waste. Proper latrine siting and containment directly reduce the chance that fecal matter will reach groundwater. By placing toilets at a safe distance from wells and watercourses and using features like lined or sealed pits and well-maintained containment, waste is kept away from the soil where it could leach pathogens into groundwater. This approach interrupts the main contamination pathway and protects the drinking water for shelter residents.

While monitoring spills and containment is important for other hazards, it doesn’t address the specific contamination risk from sanitation sources. Regular soil compaction around wells isn’t a protective measure for groundwater and can disrupt drainage, so it doesn’t directly reduce contamination risk.