CivilD is a popular hydrology program in Southern California. I have a lot of experience using it. Recently, I just finished a book on how to use it. I have attached a TOC of that book. I am trying to sell it to cover my expense. If interested, send me email or visit my company web page at http://www.terrahydra.com.
CivilD_TOC.pdf
CivilD_TOC.pdf