Water Test Results Interpreter
Enter your well water lab results and compare them to published reference values from EPA, USGS and CDC — with the health-vs-aesthetic distinction made clear.
Read this first
This tool compares your numbers to published reference values; it does not certify your water as safe. EPA limits are enforceable for public systems — private wells are generally not federally regulated. A partial panel cannot rule out contaminants you didn’t test for. For any positive bacteria result or a health-based exceedance, contact your local health department or a certified laboratory.
Enter at least one result to see an interpretation.
This is an estimate, not a specification
Results are for orientation only and depend on the accuracy of your inputs and assumptions. They do not replace a professional assessment, a manufacturer’s performance data, or laboratory testing. See our disclaimer.