Reducing Contamination by Improving Household Wastewater Treatment  
   Fact sheet on septic systems and their proper maintenance, particularly to prevent environmental contamination.
   http://waterhome.tamu.edu/texasyst/household.html

Greywater facts  
   Technical information on greywater characteristics, Clivus greywater system designs.
   http://www.greywater.com/

Frequently Asked Question about Onsite Wastewater Treatment and Disposal Systems  
   About septic systems and other small-scale onsite wastewater management.
   http://www.ci.austin.tx.us/wri/faq.htm

Common Greywater Errors and Preferred Practices  
   About greywater reuse, focusing on misconceptions and what can go wrong.
   http://www.oasisdesign.net/books/misinfo.htm

NOWRA  
   The National Onsite Wastewater Recycling Association, Inc. (NOWRA) was founded in 1991 as a national professional organization to advance and promote the onsite wastewater industry.
   http://www.nowra.org/

On-Site Wastewater Research Program  
   Site has information on septic system technology and other onsite sewage treatment options. (Nova Scotia provincial research program.)
   http://is.dal.ca/~cwrs/cwrs/onsite/cwrstab.htm

Septic Protector  
   How septic systems function, what causes them to fail, information and products to help prevent them from failing.
   http://www.septicprotector.com

The Septic System Owner's Manual  
   A straightforward, easy to understand, non-scholarly book on residential wastewater disposal.
   http://www.shelterpub.com/_shelter/ssom_book.html

Ecological Dry Toilets and Other Water Conservation Alternatives  
   About small-scale solutions for water conservation: dry toilets, rainwater harvesting, constructed wetlands for greywater treatment, and organic gardening.
   http://www.laneta.apc.org/esac/drytoilet.htm

Kentucky Onsite Wastewater Training Center  
   Training for designers, manufactures, installers, regulators, and homeowners, in the installation, operation, and maintenance of onsite wastewater treatment systems.
   http://www.kentuckyonsite.org

Septic Yellow Pages  
   Septic system questions, answers and searchable directory of over 5,000 septic system professionals. Also includes a homeowner Septic System information section.
   http://www.septicyellowpages.com

How Stuff Works: Sewer and Septic Systems  
   Illustrated multiple-part explanation of how sewer systems and septic tank systems really work, with related links.
   http://www.howstuffworks.com/sewer.htm

Greywater Information Central  
   Extensive information about grey water systems: Why to use them, how to choose, build and use them, graywater regulations, studies, and examples.
   http://greywater.net

Greywater Policy Central  
   Information about legal aspects of grey water systems, inspections, codes, permits and case studies.
   http://oasisdesign.net/greywater/law/

National Small Flows Clearinghouse  
   Provides information about alternative waste water systems for home owners or communities serving fewer than 10,000 people who treat wastewater via septic systems. Includes publications, services and databases of related information.
   http://www.nsfc.wvu.edu/

OnSite Sewage Treatment Program  
   Comprehensive information source on standard and alternative septic systems and technology research and demonstration, with particular focus on Minnesota.
   http://septic.coafes.umn.edu/

Texas Water Resources Institute  
   Serves as a focal point for water-related research at Texas universities, encouraging discussion of statewide issues through meetings and multi-university studies. Includes calendar of events, newsletters, and reports.
   http://twri.tamu.edu/

Recycling of Greywater  
   How to process greywater from shower for toilet flushing in a simple and sustainible way.
   http://www.reinerhildebrand.de/grau/grey.html

Septic-Info.Com  
   Comprehensive information resource about septic system technology and care, intended for homeowners and commercial septic owners/operators.
   http://www.septic-info.com/

Septic Systems (Pennsylvania Perspective)  
   On-line guide to on-lot wastewater disposal in Pennsylvania provides basic information on approved, alternative and experimental land-based wastewater disposal and recharge systems.
   http://www.webdesignpros.net/consult/septic/septicsystem.htm

Managing Household Wastewater  
   Mississippi State University fact sheet on septic tanks and soil absorption systems for household sewage and wastewater.
   http://msucares.com/pubs/publications/p1869.htm