Galusha offers both an engineering and a social history of the New York water supply. The book is well illustrated, and I found the technical discussion generally easy to follow.
One of the things the book highlights is the way that the Upstate communities were disrupted and even destroyed by dam construction. New York City was happy to condemn and relocate whole villages if they were in the way of a needed reservoir.
I have two hesitations. First, the author incorporates long stretches quoted from previous histories, and it's not always clear what details are interesting or important. Why do we care, for each dam, how many cubic feet of concrete were poured or how fast the tunnel advances were made? It feels like there should have been some analysis or summary to tie together the minutia, that wasn't there.
Second, the book doesn't really analyze any of the decisions that were made. I'd like to know what the Board of Water Supply (BWS) got right and what they got wrong. I didn't learn that and don't understand it. My sense is that the author has no particular technical expertise, so any such analysis would have to lean on other sources, but still, it should be possible to tell us what mistakes the BWS itself acknowledged, or which decisions they congratulated themselves for.