Where should food facilities be placed on sites?

• A. located at least 300 feet uphill, upwind, and upstream from latrines and 100 feet from waste disposal areas.
• B. Upwind but downwind from latrines.
• C. 100 feet downhill from latrines.
• D. Adjacent to storage tanks.

Answer: (A)

The main idea here is protecting food by locating food facilities away from sanitation sources and in a direction that minimizes contamination risk. Placing food facilities at least 300 feet uphill, upwind, and upstream from latrines, with an additional 100 feet from waste disposal areas, uses gravity and air flow to reduce the chance that pathogens or odors reach the food. Elevation helps prevent runoff from latrines from reaching the food area, while being upwind keeps airborne contaminants moving away from the food space. The extra distance from waste disposal areas adds a safety buffer against leaks or splash.

Choosing a site that is upwind but downwind from latrines would expose food to airborne contaminants. Being 100 feet downhill from latrines ignores the protection offered by gravity and directional flow, and placing adjacent to storage tanks risks spills or contamination from that source.