- Author: American Water Works Association
- Language: English
- Year: 2012
- Author: James K. Jordan AWWA (American Water Works Association)
- Language: English
- Year: 2010
- Author: AWWA (American Water Works Association)
- Language: English
- Year: 2000
- Author: American Water Works Association
- Language: English
- Year: 2005
- Author: American Water Works Association
- Language: English
- Year: 2011
- Author: American Water Works Association
- Language: English
- Year: 2004
- Author: American Water Works Association
- Language: English
- Year: 2001
- Author: American Water Works Association
- Language: English
- Year: 2002
- Author: American Water Works Association
- Language: English
- Year: 2009
- Author: American Water Works Association
- Language: English
- Year: 2002