Food facilities should be located at least how far from latrines?

• A. Adjacent to storage tanks.
• B. Upwind but downwind from latrines.
• C. located at least 300 feet uphill, upwind, and upstream from latrines.
• D. 50 feet from latrines.

Answer: (C)

The main idea here is to prevent contamination of food by latrine waste by choosing a location that keeps distance and uses the landscape and wind to minimize exposure. Placing food facilities at a substantial distance and in a position that uses gravity, wind direction, and water flow to protect the clean area is essential.

Locating the food area at least 300 feet uphill, upwind, and upstream from latrines creates multiple barriers. Being uphill reduces the chance that any contaminated runoff or splash from latrines will flow downhill toward the food area. Being upstream means that if liquids draining from latrines move, they won’t travel toward the food facility. Being upwind helps ensure that odors and any airborne contaminants are carried away from the food area rather than toward it. Together, these conditions provide the strongest protection against contamination.

Choosing something adjacent to storage tanks doesn’t address the latrine contamination risk and keeps the food area close to other potential hazards. Being upwind but downwind from latrines is contradictory in real-world airflow and would not reliably protect the food area. A distance of only 50 feet is not enough to reduce contamination risk given the potential for runoff, splash, and airborne spread.

So, the best practice is the option that specifies a substantial separation with uphill, upwind, and upstream positioning, at a minimum distance like 300 feet, to keep food facilities safe from latrine-related contamination.