Make sense of your water before you treat it.
Straightforward guides to private well testing and home water filters—so you can understand what to test, what results mean, and what a treatment system is actually certified to do.
Educational information, not a lab test or a substitute for local public-health advice.
Three steps to a better water decision
Good treatment starts with the water you have and the problem you need to solve—not a generic “best filter” list.
Find out what is in your well water
Learn which tests are commonly recommended, how to find a state-certified lab, and when local guidance matters.
Read the testing guide → 02 / UNDERSTANDMatch a filter to a specific contaminant
Compare treatment types and check the exact reduction claim and certification for the issue you are addressing.
Learn filter basics → 03 / VERIFYCheck the evidence behind a product claim
Use independent certification directories and product performance sheets before relying on marketing language.
See our source standards →Have a nitrate result? Compare nitrate report units and see which questions to ask next →
Start with an official testing path
We are building state-specific lab information from primary sources. Michigan is the first pilot; the guide shows which service details are confirmed and what still needs checking.
Michigan private well owners
Compare EGLE and local testing routes, see current published fee examples, review sample deadlines, and verify the details that still need a phone call.
Have a private well?
CDC recommends testing at least once a year for total coliform bacteria, nitrates, total dissolved solids, and pH. Your local health department can advise on additional tests for your area.
We are an educational guide, not a water-testing laboratory, treatment contractor, or public-health authority. For test results or suspected contamination, contact a state-certified laboratory or your local health department.