Well Water Treatment Basics: Match the Fix to the Test
Test first
Treatment should match a certified lab result. A softener won't fix bacteria, and UV won't remove nitrate.
Common options
- Water softener (ion exchange): hardness, and low levels of dissolved iron and manganese.
- Oxidation and filtration: higher iron, manganese and hydrogen sulfide.
- Reverse osmosis (usually one tap): nitrate, arsenic, fluoride, uranium, PFAS and more.
- UV light or continuous chlorination: bacteria, after fixing the well's defects.
- Anion exchange: nitrate, some PFAS and uranium.
- Neutralizer: low pH (corrosive) water.
Look for certification
Choose equipment certified to NSF/ANSI standards for the contaminant you need to reduce, and maintain it as the maker says.
Retest
Test the treated water after installation and then regularly. Treatment can fail without warning.
Need a quote?
Use the quote form on your state page. In the Dallas–Fort Worth area, see our county pages for our treatment partner.
Sources
- EPA: Potential well water contaminants and their impacts
- Penn State Extension: Water softening
- Penn State Extension: Iron and manganese in private water systems
- Penn State Extension: Hydrogen sulfide (rotten egg odor) in water wells
Questions
Will a water softener make my well water safe?
No. Softeners treat hardness and some iron. They don't treat bacteria, nitrate, arsenic or PFAS.
Free well water safety checklist
15 family-friendly steps based on CDC and EPA guidance. Print it, keep it on the fridge, and know when to call a certified lab.
More guides
- Flood Protection for Well Owners: Before, During and After a FloodRaise and seal the wellhead, know your pump shutoff, then disinfect and test with a certified lab after any flood.
- PFAS “Forever Chemicals” in Private Wells: Why You Should TestFederal PFAS rules protect public water systems — not private wells. Here’s what “forever chemicals” mean for well owners and how to get tested.
- Nitrates in Well Water and Blue Baby Syndrome: Who Must TestNitrate in well water can cause blue baby syndrome in infants. Learn who is at risk, when to test, and how to find a certified lab.
- Arsenic in Private Well Water: The Invisible Risk UndergroundArsenic in groundwater is often naturally occurring and invisible. USGS research shows millions of private-well users may be above the EPA drinking-water standard.