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Wastewater Treatment References
Operation of Wastewater Treatment Plants through California State University, Sacramento
WEF/ABC Certification Study Guide for Wastewater Treatment Personnel (Note: If this link doesn't work, either try it a second time or copy this address: http://www.e-wef.org/timssnet/static/CT/E20022.htm into your browser.)
How to order WEF Certification Study Guides
(The above files requires version 4.0 or later of Adobe Acrobat Reader Software)
If you have questions about the above study materials, please contact the Association of Boards Certification.
208 Fifth Street, Suite 1A
Ames, Iowa 50010
(515) 232-3623
FAX (515) 232-3778
Return to Wastewater Operator Certification Program homepage
Last updated on May 02, 2008
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