How far are latrines from a unit dining facility (MKT)?

• A. 50 yards Upwind and Up gradient
• B. 100 yards Downwind and down gradient
• C. 200 yards Downwind and Up gradient
• D. 100 yards Upwind and down gradient

Answer: (B)

Siting latrines away from a dining facility is about preventing odors, flies, and potential runoff from reaching the food area. The standard distance is 100 yards. Placing them downwind and down gradient relative to the dining facility ensures that any odors or leachate are carried away from the food service area by the prevailing wind and gravity, reducing the chance that contaminants come toward the dining facility. Positions that are upwind would push odors toward the dining area, and up gradient could allow runoff to flow toward it. A distance of 100 yards with the downwind, down gradient direction best protects the dining facility.