First one is older but worth a read. DCHS is referenced. Second one more recent, hopefully by a reader of this forum.
http://www.cityweekly.net/utah/article-217-12007-all-warm-some-naked-utahs-hot-springs.html?current_page=all
http://tsl.pomona.edu/articles/2013/5/3/feature/4026-deep-creek-hot-springs