References

1.Board of Directors. Drinking Water Quality. http://wwwmawwa.org/driwapol.htm. Jan. 29, 1989.

2.(Online) Avalible.The Presence of Bacteria in Drinking Water. http://www.everpure.com/issues/iowq010.html. March 11,1997.

3.(Online) Avalible. Facts about Lead in Drinking Water. http://www.everpure.com/issues/iowq009.html. March 11, 1997.

4.(Online) Avalible. http://www.scvwd.dst.ca.us/home.htm. March 11, 1997.

5.(Online) Avalible. http://www.epa.gov/ow/. March 3, 1997.