Four-page factsheet by the United States Environmental Protection Agency (U.S. EPA), describing septic tanks, their applicability and the design of septic tank systems for household-level black and greywater treatment.
U.S. EPA (2000): Decentralized Systems Technology Fact Sheet - Septic System Tanks. (= EPA 832-F-00 , 40 ). Washington, D.C.: United States Environmental Protection Agency, Office of Water Office of Research and Development (US EPA) URL [Accessed: 15.04.2010]