One example of a breach of water quality in the U.S. is the Flint Water Crisis. During this crisis, a new pipeline that was being built in the area led to the state mandating that Flint used its interim water supply from the Flint river. This ultimately led to many Flint residents contracting legionnaires disease, a deadly form of pneumonia caused by Legionella outbreaks in water supplies. Despite calls from the CDC for a full investigation, Michigan opted to do its own investigation. The state attorney general suppressed the case from the media for over a year. The water, to this day, was never tested to prevent a definite link between the Legionella outbreak and the Flint water supply. 

Another case where the quality of water was breached was the Jackson water crisis last year in 2022. Two disasters primarily caused this crisis, infrastructure failure and river flooding, and led to more than 200,000 people in the area without access to clean water. However, it is important to note that this crisis could have been prevented with a different allocation of resources to this area. The Jackson area had consistently received little state funding for their water supply. Richer cities and areas in Mississippi received more funding and faced no issues as a result of these disasters.