aspe.org: American Society Of Plumbing Engineers (Aspe)
Dedicated to the advancement of the science of plumbing engineering, to the professional growth and advancement of its members and the health, welfare and safety of the ...
asse-plumbing.org: Asse - American Society Of Sanitary Engineering
News, publications, standards and certification information, plus details of upcoming meetings.
awwa.org: Safe Drinking Water - American Water Works Association - Awwa
International nonprofit scientific and educational society dedicated to the improvement of drinking water quality and supply.
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