Natural Resources Defense Council
NRDC fights to safeguard drinking water, to protect, preserve and restore our rivers, streams, lakes, wetlands and coastal waters, and to promote conservation and better water management in the arid western states.
http://www.nrdc.org/water/drinking/default.asp

P.R.Engineering Ltd - UK
Spirit Level Vial Manufacturers and suppliers
http://www.spirit-levels.co.uk/

P.R.Engineering Ltd
Spirit Level Vial Manufacturers and suppliers
http://www.spirit-levels.co.uk/

WWW Encyclopedia of Sustainable Development
Sustainable development topics in the IISD Research Library collection and database.
http://www.iisd.org/ic/

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

Arsenic in Drinking Water
EPA compendium of research related to determining safe levels and setting new standards.
http://www.epa.gov/safewater/arsenic/index.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

Eureka Environmental Engineering
Manufacturer of multiparameter instruments which monitor water quality, including dissolved oxygen, specific conductance, pH, ORP, and stage levels.
http://www.eurekaenvironmental.com

Aqua Pure Ventures Inc.
Offers a patented energy-efficient distillation method for treating water and wastewater containing high levels of inorganic constituents.
http://www.aqua-pure.com/

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