Private well testing companion

Your lab report, in plain English.

Thirteen million American households drink from a private well, and no agency tests that water for them. The lab sends back a page of numbers with no verdict attached. Well Water Log reads that page with you: every value checked against EPA drinking water limits, explained in a sentence you can act on, and kept where you can find it next year.

Get it on the App Store Free · iPhone · on your Home Screen as WellCheck

Well Water Log dashboard showing an All Clear well status for a June 2026 test, above a history of four earlier tests.

Three states, no chemistry degree

Every reading you enter lands in one of three buckets, with the EPA limit it was measured against and a paragraph on what to do about it.

OK

Inside the EPA limit and the acceptable range. Nothing to do but test again next year.

Advisory

Past a secondary, aesthetic guideline — taste, odour, staining, hardness. Not a health limit, and the app says so.

Exceeds limit

Over an EPA primary maximum contaminant level or action level. The guidance tells you who to call.

Eighteen parameters

The standard analysis state health departments recommend, with primary limits, secondary guidelines, canonical units, and guidance text for each.

Total coliformE. coliNitrateNitrite ArsenicLeadUraniumRadon CopperFluorideManganeseIron SodiumChlorideSulfateHardness Total dissolved solidspH

From the envelope to an answer

Photograph the lab report, confirm what was read, and the rest of the app fills itself in.

Built for the years between tests

The EPA recommends testing annually. Most owners do not, because nothing reminds them.

The annual nudge

A local notification twelve months after your most recent test, adjustable to six or twenty-four. It reschedules itself whenever you log something new.

A guide worth reading

Every parameter has its own page: what it is, where it comes from in a well, what the limit is, and what people usually do about it.

Works with any lab

Type results from a county lab, a mail-in kit, or a state programme. Bacteria are present or absent; everything else takes a number.

Offline and yours

No account, no server, no analytics. Your results live in the app on your phone, and go nowhere else.

What Well Water Log is not

Water quality is a health question, and an app that overstates itself is worse than no app.

It is not a lab

Well Water Log cannot measure anything. It records the numbers a certified laboratory gave you and compares them to published limits.

It is not medical advice

The guidance is an educational reference against EPA standards, not a substitute for your health department, your lab, or your doctor.

The scanner is a first draft

Text recognition on a photographed report gets things wrong. Nothing it reads is saved until you have checked it against the paper.

One well, for now

This version tracks a single well. If you own several, they would share one history — worth knowing before you buy.

One purchase. No subscription.

Logging and interpreting your results is free, forever, for everyone.

Free

$0

The part that matters most

  • Unlimited tests, logged and kept
  • All 18 parameters interpreted against EPA limits
  • The full parameter guide
  • Annual test reminders