Pyper, G.R.

Pyper, G.R., 1985. Slow sand filter and package treatment plant evaluation : operating costs and removal of bacteria, Giardia and trihalomethanes by McIndoe Fall fire district 3, McIndoe Falls, Vermont 05050, Cincinnati, OH, USA: US Environmental Protection Agency (EPA). Available at: http://fr.ircwash.org/sites/default/files/255.1-85SL-514.pdf.