Of interest to NH locals. Dennis Sasseville, who has commented here for years and literally wrote the book on Moxie has written his second book on bottled spring waters and flavored tonics in NH, Granite Fizz. (I think he also had a book years ago about ISO 14001, but I doubt that is of general interest now). He is a geologist with a dozen hobbies and eventually develops an expertise in each. We can't talk him into retiring, but he is at least part time now. He is well-traveled - too well, as far as he is concerned as much of it was for business and not that enjoyable - but is concentrated on New England and the Maritimes, having lived in Massachusetts, Maine, Newfoundland, and mostly, New Hampshire.
You will notice he used the word "tonic" for a soft drink, which is still just barely used in north coastal New England, as we have discussed before. That's how you know you're getting the real authentic deal from an author, when they notice details like that. I think he started on this with his interest in bottles, though springs would catch the eye of a geologist as well.