1. The 2001 Report Card for America's Infrastructure,2001
2. Using GIS technology to manage infrastructure capital assets;Booth;Journal American Water Works Association (AWWA),2001
3. Waterborne disease outbreaks caused by distribution system deficiencies;Craun;Journal AWWA,2001
4. Environmental Protection Agency (EPA), 2001. 1999 Drinking Water Infrastructure Needs Survey: Second Report to Congress. EPA-816-R-01-004, Washington, DC, February 2001.
5. EPA, 1997. 1995 Community Water System Survey, vols. I and II: Overview and Detailed Survey Result Tables and Methodology Reports. EPA-815-R-97-001a/b, Washington, DC, January 1997.