Environmental Protection Agency (EPA) Office of Water
US federal agency responsible for protecting and improving water quality. Site includes details of national water programs, online library, local information, laws, and kids page.
http://www.epa.gov/ow/

UNESCO-IHE Institute for Water Education
UNESCO-IHE carries out Research, Education and Capacity Building Activities in the fields of Water and the Environment.
http://www.unesco-ihe.org/

Nutrient Net Demo
Demonstration of a market-based approach for protecting and improving water quality. Nutrient trading involves allowing sources to trade in ways that meet local and watershed-wide water quality goals.
http://www.nutrientnet.org/

U.S. Water News
News concerning water and water issues in the USA. US Water News coverage includes water supply, water quality, policy and legislation, litigation and water rights, conservation, climate, and international water news. Occasional articles relating to trenchless technology. A resource for professionals serving the water industry.
http://uswaternews.com/homepage.html

Kauai Department of Water
County of Kauai, Department of Water. Contains water quality reports, events, water plan 2020, water systems and water sources, water conservation tips, board meeting information
http://www.kauaiwater.org

Non Chemical Water Treatment Systems
Lehmier Electric specializes in non-chemical water treatment, automatic emergency backup generators, and Electric-Saver systems.
http://www.lehmierelectric.com

USGS -- Water Resources of the United States
Home page for water resources information from the US Geological Survey
http://water.usgs.gov/

Ondeo Industrial Water Solutions
Provides industrial water cycle management including water systems operations and maintenance, water cycle outsourcing, water treatment equipment, water and wastewater plant design and construction.
http://www.ondeo-is.com/

Resources for the Future Library: Water
Research reports (PDF format) and project summaries related to economic and policy aspects of water allocation/management and water quality improvement. Sample topics include marketing water, water as a source of international conflict, economic value of fresh water, and cross-media pollution.
http://www.rff.org/environment/water.htm

U.S. Water News Online
News concerning water and water issues in the USA. US Water News coverage includes water supply, water quality, policy and legislation, litigation and water rights, conservation, climate, and international water news.
http://www.uswaternews.com/