water level monitoring station. In a communication between ecological types, they say that it's essential that it be removed. They talk about obsolete dams and macro-invertebrates. Whether the dam is 72 years old, or only 68 years old, it's hard to imagine that it's now essential that it be removed. It's not that I'm insensitive toward macro-invertebrates, but Harry Trexler had the park designed for people.