EPA – Environmental Protection Agency
- Drinking Water Standards
- Drinking Water & Health Basics
- Safe Drinking Water
WQA – Water Quality Association
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.
WC&P – Water Conditioning and Purification
Water treatment and purification technical articles, helping you stay abreast of recent developments in the water treatment industry.