Sewage World  
   Wastewater and water treatment plants around the world: virtual visit and industrial flowcharts
   http://www.sewage.net/

Flush Gordon's Wastewater Page  
   Introduction to water pollution, wastewater treatment, and water analysis. Useful as an educational resource, with diagrams and many links.
   http://www.geocities.com/RainForest/5161/

Association of Metropolitan Sewerage Agencies (U.S.)  
   Has current news and information about clean water issues (such as nonpoint source pollution and radioactivity in municipal wastewater), as well as resources for POTW operators.
   http://www.amsa-cleanwater.org/

U.S. EPA Office of Wastewater Management  
   Information on wastewater treatment technologies, NPDES permitting requirements, biosolids management, EPA water quality initiatives, and other water quality topics.
   http://www.epa.gov/owm/index.htm

Science Traveller International  
   A wastewater forum with information on wastewater software and news. It also includes 'Wastewater World Wide' - extensive Wastewater Web Link pages.
   http://www.scitrav.com/wwater/

Camden County Municipal Utilities Authority  
   The CCMUA treats 55-60 million gallons per day of wastewater in Camden County, NJ, USA. Topics run from industrial pretreatment to sludge disposal.
   http://www.ccmua.org

World Wide Web Virtual Library: Wastewater Engineering  
   Municipal Wastewater, Academic and Research Institutions, Professional and Trade Organizations, Consultants, Suppliers, Resource bases, Company listing collections, Pretreatment, and Agencies.
   http://www.cleanh2o.com/ww/

Wastewater fact sheet  
   From Pipeline* by National Small Flows Clearinghouse. This publication has been adapted for use in Indiana by Purdue University
   http://danpatch.ecn.purdue.edu/~epados/septics/wwater.htm

Wastewater Treatment Principles and Regulations  
   Fact sheet on wastewater treatment, by Ohio State University.
   http://www.ag.ohio-state.edu/~ohioline/aex-fact/0768.html

Water and Wastewater Equipment Manufacturers Association  
   WWEMA is a non-profit trade organization for companies that manufacture products sold to the potable water and wastewater treatment industries. Members supply leading-edge products and technologies, offering solutions to numerous water-related environment
   http://www.wwema.org/

WaterWiser  
   Water efficiency clearning house. Directory of water and wastewater related publications, products and services.
   http://www.waterwiser.org/

CIPCA  
   Colorado Industrial Pretreatment Coordinators Association
   http://cipca.org

WaterWorld Magazine: Municipal Water/Wastewater Information  
   Liquid and solid waste, water quality, contamination and pollution information, trends and technology online for professionals in the municipal water and wastewater industry.
   http://www.wwinternational.com/pages/waterworld.htm

Activated Sludge Microorganisms  
   Discusses and illustrates the organisms in sludge, and what can be learned by microscopic analysis of biological treatment systems for wastewater.
   http://www.engitech.com/asm.htm

Database Central  
   Wastewater organisms database.
   http://home1.gte.net/vsjslsk1/index.htm

Michigan Water Environment Association (MWEA)  
   A forum for all water environment topics.
   http://www.mi-wea.org

Maine Lagoon Systems  
   Information about the operation and science of aerated lagoons for wastewater treatment.
   http://www.lagoonsonline.com

Tide is Turning  
   A rural community in British Columbia informs residents and local Council on treatment options that are cost effective and environmentally sound.
   http://www.hermessenger.com

Irepolia Environmental studies and analysis center  
   Conducts research and technology development on wastewater treatment methods. Site is in English and French.
   http://www.irepolia.com

Phosphate Recovery  
   Information about research and conferences on the recovery and reuse of phosphate from wastewaters and animal wastes.
   http://www.nhm.ac.uk/mineralogy/phos/

Mr. Wastewater's Duckweed Home Page  
   Description of the biology, ecology and botany of duckweed (Lemnaceae) and its use in treating wastewater.
   http://www.geocities.com/RainForest/Canopy/3631

Nitrate to Nitrogen  
   Information about ChemDen, a new technology to convert nitrate in wastewater, agriculture runoff, and other waters to nitrogen gas.
   http://www.lanl.gov/projects/nitrate/

King County Industrial Waste Program  
   How the county (Washington state, USA) regulates industrial discharges into its wastewater system, including discharge limits, approvals, enforcement, and fees.
   http://dnr.metrokc.gov/wlr/indwaste/index.htm

Key West Project  
   About Key West's wastewater treatment project (treatment and deep well injection of treated effluent) and about wastewater and its treatment, in general.
   http://www.keywestwastewater.com/

Cap-Net.Org  
   Water education and training, integrated water resources management, IMRM, IWRM, reports, training material, case studies, information, specialists, global water partnership, capacity building in IWRM, database of global water management, training institu
   http://www.cap-net.org/

Living Technologies Ltd.  
   Designs and builds ecological wastewater treatment systems called 'Living Machines in UK.
   http://www.ltluk.com

Ames, Iowa Water and Pollution Control Department  
   Drinking water and wastewater treatment provider for the City of Ames, Iowa
   http://www.city.ames.ia.us/waterweb

Iowa Water Pollution Control Association  
   Design, construction, operation, and management of water pollution control works and exchange of information.
   http://www.iawpca.org

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/

Wastewater Pollution in China  
   An article on wastewater pollution in China, by Kris Min.
   http://darwin.bio.uci.edu/~sustain/suscoasts/krismin.html

NSF International: Certified Wastewater Treatment Units  
   Database of wastewater treatment processes and equipment (for industrial, municipal, and residential use) that have been evaluated and certified to meet technical standards.
   http://www.nsf.org/Certified/Wastewater/

Water Management in Pangani River Basin  
   Describes the results from an ongoing doctoral study related to Water Management in the Pangani River Basin. By Paul Christen Rohr, Department of Hydraulic and Environmental Engineering, Norwegian University of Science and Technology.
   http://www.itea.ntnu.no/~pcr/

Clean River Works, Portland's Combined Sewer Overflow Program  
   A collection of sewer projects for reducing CSOs from the west side of the Willamette River in Portland, Oregon.
   http://www.cleanriverworks.com

Ecowaters Projects  
   CEPP conducts workshops, demonstrations, evaluation and public education about ecological wastewater solutions, such as composting toilets and graywater systems.
   http://www.ecowaters.org/