This summer, large amounts of sewage flowed into the Hudson River after storms in the area. This was a result of a combined sewer overflow. The 10 spills were not reported until about a week later. This is a problem because sewage and water flow systems should not allow for large storm to cause massive spills in nearby waterways. It is also a problem because people use the Hudson River for recreational use and may have come in contact with waste. This would not have happened had the spills been reported.
This article is a great source of evidence showing the problems we have with gray infrastructure that does not work during storms, which will soon be happening more often.