1. ASCE (American Society of Civil Engineers) 2013a Wastewater: Conditions & Capacity www.infrastructurereportcard.org/a/#p/wastewater/conditions-and-capacity
2. ASCE 2013b Wastewater: Investment & Funding www.infrastructurereportcard.org/a/#p/wastewater/investment-and-funding
3. Making Wastewater Systems Smarter;Boulos;Opflow,2013
4. A Massive Outbreak in Milwaukee of Cryptosporidium Infection Transmitted Through the Public Water Supply;Mac Kenzie;New England Journal of Medicine,1994
5. O'Neill , J.M. 2013 Staggering Cost of Repairs Allows Sewage to Foul N.J. Waterways NorthJersey.com www.northjersey.com/news/staggering-cost-of-repairs-allows-sewage-to-foul-n-j-waterways-1.454229