What is the maximum water temperature allowed for showers and lavatories?

The maximum water temperature allowed for showers and lavatories is 120 degrees Fahrenheit. This standard is set to prevent scalding and ensure the safety of individuals using the facilities. Water temperatures above this level can result in serious burns, especially for young children and the elderly. The regulation is based on the recognition that exposure to very hot water can lead to skin injuries and poses a significant health risk. Maintaining a water temperature around 120 degrees provides a balance that supports comfortable hygiene practices while minimizing harm, making it the most appropriate answer in this context.