How many showers and eyewash stations do I need in my workplace?

The most critical feature in determining the number of onsite showers and eyewash stations needed is proximity. ANSI recommends that any worker should be able to reach the nearest eyewash or shower station within 10 seconds of contact with the hazardous material, regardless of their physical and mental state at the time.  This is often assessed as a maximum distance of 55 feet. Â