http://www.erm.com (Environmental Resources Management, Inc., one of the world's leading environmental consulting company)
	http://www.holcim.com (Holcim Ltd., No. 2 in the cement business)
	http://www.alptransit.ch/pages/e/ (AlpTransit, the world longest railway tunnel)
	http://www.ciba.com (former Ciba-Geigy, now Novartis)
	http://www.jaeckli.ch/index.html (Dr. Heinrich Jäckli AG, hydrogeological consulting)

	http://www.dyetracing.com (Educational site on dye tracing)
	http://water.usgs.gov (USGS Water site)
	http://sr6capp.er.usgs.gov/aquiferBasics/ (Aquifer Basics)
	http://capp.water.usgs.gov/gwa/gwa.html (Groundwater Atlas of the US)
	http://www.noaa.gov/ocean.html (All about oceans)
	http://www.epa.gov/OGWDW/ (EPA's ground and drinking water site)
	http://water.usgs.gov/usa/nwis/help/?redirect=nwis_w_redirect (USA Water data)
	http://water.usgs.gov/nwis/RT (USGS Real time streamflow data)
	http://www.epa.gov/surf/ (Surf your watershed)
	http://www.epa.gov/OWOW/watershed/ (EPA Watershed protection)
	http://witcombe.sbc.edu/water/index.html (The mystery, art, and science of water)
	http://www.wef.org/wefstudents/GoWithFlow/theflow.htm (Waste water treatment plant)

This page was last updated on 12/07/04 . Webpage created by Martin H. Otz, 2004.