A leaked report said that warnings about the risk of water contamination at Glasgow's Queen Elizabeth University Hospital were issued just days after it opened, according to an article on the BBC website.
The 2015 inspection report into Scotland's largest hospital ranked infection control measures as "high risk" in several areas.
The hospital stayed open despite the warnings but has since had to close wards due to the risks from the water.
NHS Greater Glasgow and Clyde (NHSGGC) said the hospital campus has a "safe and effective water supply" and all inspection reports have been acted upon.