You may see this link to download the EPANET2.0 program at:
www.onenature.com/download1.html
Note: The following link presents useful materials of design criteria and specifications for water mains
prepared for City of Tullahoma, Tennessee, USA:
http://www.tub.net/pressuresewerspecs.htm
or you may use the search engine to search for any related topics:
www.google.com
Other useful links are:
http://www.ce.edu.sa
http://www.epa.gov/ebtpages/water.html
http://water.usgs.gov /
http://www.uswaternews.com/homepage.html
http://www.usace.army.mil /
http://www.groundwater.org
http://www.usace.army.mil