Understand your well water results. Know what to do next.
Upload a report from any certified lab. Every number gets explained in plain English, with what to do next, who can help near you, and a plan for when to test again.
Free for well owners, and your report is read in your browser, never uploaded. Or tap any line on the sample to see how it works.
Private well, untreated tap
Sample data for illustration. Limits are EPA standards for public water, the usual yardstick for private wells.
About 43 million Americans drink from a private well. No utility tests that water, and USGS sampling found about 1 in 5 wells had a contaminant at a level of potential health concern.
Sources: USGS domestic wells, USGS private well studyHow it works
Built for the moment the envelope from the lab arrives and none of it makes sense.
Add your report
A PDF from the lab, or a phone photo of the page. Any state certified lab works. Try it now.
Read it in plain English
Each result is checked against EPA limits and explained: what it is, whether it matters, and what to do about it.
Find help near you
If something needs fixing, find your health department, certified labs and well contractors near you.
Never miss a test
A retest plan you can save to your calendar: bacteria and nitrate every year, and again after floods, well repairs or a new baby in the house.
Haven't tested yet?
Start with bacteria and nitrate. The CDC suggests testing every well for both, every year. Tell us your state when you join and we'll point you to certified labs that serve your area.
Made for anyone who drinks from a well
If your water comes from a well, testing and understanding it is on you. We make that part easier.
- Well ownersKnow what your results mean without calling three people to ask.
- Buying or selling a home with a wellGet a shareable Well Report with the full testing history for buyers, lenders and inspectors.
- Landlords and property managersKeep every well on a schedule and every result on file.
What works today
WellDecoded is young, so here's exactly what you can use now, what's still being tested, and what's coming.
LiveUse it now
Free, in your browser.
- Report decoderLab PDFs and typed results, explained line by line.
- Official comparisonsEvery result checked against EPA limits, with Ontario standards too, for Canadian wells.
- Retest planWhat to test again and when, with a calendar file you can save.
- Email retest remindersSave your plan with your email and we'll write a week before each test is due, and on the day.
- Find help near youLinks to your health department, certified labs and well contractors.
- Save or printKeep a copy of your results, or bring it to your lab or doctor.
- Plain English guidesWhat each common result means and what to do about it.
BetaBeing tested
Works, but check it against your paper report.
- Photos and scansReading a phone photo or scanned page. Numbers can be misread, so we flag anything that looks off.
- Lab results linksA link or QR code a lab can print on its results letter, opening the decoder with the right standards.
PlannedComing next
Join the list and you'll hear first.
- Your results historyEvery test in one place, so you can see what's changing.
- Well Report for home salesA shareable testing history for buyers, lenders and inspectors.
Last updated October 2026. Something not working? Email [email protected].
What we will and won't do
Water advice is full of people selling filters. We aren't one of them.
- Explain, not sellNo filter or treatment sales pitch. When treatment helps, we tell you what type to look for.
- Never call your water “safe”We compare results with official limits. Real problems go straight to your local health department.
- Your results stay yoursNever sold or shared. Delete your data whenever you like.
- Any lab, no lock inUse the lab you already trust. We don't run a lab or sell test kits.
Built by water scientists
- PhD water scientistsFounded by specialists in water information systems and environmental engineering, with years of work on water data and water quality.
- Checked against official limitsEvery explanation is compared with EPA limits, or Ontario standards and Health Canada guidelines, checked against the sources in October 2026.
- Private by designYour report is read in your browser. It isn't uploaded or stored unless you choose to send it to us.
- IndependentWe don't sell filters or treatment, and we don't take referral fees from contractors.
For extension programs and health departments
Your team already explains results by hand, one report at a time. WellDecoded can do the first pass in plain English, point owners to the right local contacts, and leave your staff the cases that need an expert.
Free for public programs. We're looking for a few programs to help shape it, including how it uses your guidance and your local contacts.
Talk to us about your program For labs: add it to your results letterQuestions
Does WellDecoded test my water?
No. You test with a state certified lab, and we explain the report you get back. If you haven't tested yet, we'll point you to certified labs in your state.
Do you sell filters or get paid by contractors?
We don't sell filters or treatment systems. When we show local professionals, we list licensed contractors and specialists, and if we ever earn a referral fee, we'll say so clearly next to the listing.
Which lab reports will it read?
Reports from any certified lab, as a PDF or a clear photo. If something can't be read, you can type the number in instead. Decode your report now.
Is it free?
Yes. Getting your results explained is free for well owners. Later we may add paid extras, like full testing history for households, home sales and landlords. Founding members get those at a lower price, locked in.
Is this medical advice?
No. It explains your results against official drinking water limits so you can make good decisions and ask better questions. For health concerns, talk to your local health department or doctor.
Where does it work?
In the United States, using EPA limits and state guidance, and in Canada, starting with Ontario. Canadian well owners can use the Canada page, which follows Ontario standards and Health Canada guidelines.
Be one of the first 100 founding members
We're opening WellDecoded to a small group first. Join the list and you'll get:
- Retest reminders and saved results, free, as they open
- A founding member price, locked in
- A direct line to the founders to shape what gets built