Environmental Protection Agency

www.epa.gov/safewater

Drinking Water Standards
Drinking Water & Health Basics
Safe Drinking Water

Water Quality Association

www.wqa.org

Not-for-profit international trade association representing household, commercial, industrial and small community water treatment industry; WQA is a resource & information source, an educator for water treatment professionals, a lab for testing.

Water Conditioning & Purification

www.wcp.net

Water treatment and purification technical articles, helping you stay abreast of recent developments in the water treatment industry.