American National Standards Institute

http://www.ansi.org

CSA International

http://www.csa-international.org

EPA Office of Wastewater Management Homepage

OWM Oversees a wide range of programs contributing to the well-being of the nation’s waters and watersheds

http://www.epa.gov/OWM

NSF International (National Sanitation Foundation)

http://www.nsf.org

Sewer Treatment Definitions

http://water.me.vccs.edu/stdef.htm

Underwriters Laboratories

http://www.ul.com

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