In-home water softening is a significant contributor of salt to the environment. Learn more about how to limit the impact.
Residential water softening factsheets:
General information on water softening
MDH: Home Water Softening Frequently Asked Questions
MPCA's skinny on water softening
Background information on water hardness
The WQA Water Treatment for Dummies Handbook
The Minnesota Water Quality Association glossary provides water definitions and terminology helpful to the general public.
A more comprehensive glossary is found on the Water Conditioning & Purification International site, which defines terms applicable to community water resources concerns.