Got Your Well Water Lab Report?
Enter the numbers from your lab report. We will tell you what they mean, what needs attention, and what to do next.
What This Tool Does
Our well water interpreter takes the numbers from your lab report and compares each one against EPA drinking water standards. You get a clear, plain-language breakdown of what meets reference standards, what exceeds them, and what to do about it. The tool covers 19 common analytes including bacteria, nitrate, arsenic, lead, PFAS, hardness, and pH.
Everything runs in your browser. Your data is never sent to a server, stored, or shared. There is no account to create and nothing to download.
This is not a safety determination. It is a reference tool that compares your numbers to the same EPA standards used by state health agencies and certified labs when evaluating private well water.
Have Not Tested Your Water Yet?
Private wells are not regulated by the EPA. That means testing is your responsibility. The EPA and most state health departments recommend testing annually for bacteria, nitrate, and pH at minimum. If you live near agricultural land, industrial sites, or old mining operations, additional testing for arsenic, PFAS, and heavy metals is recommended.
Contact your county health department or a state-certified lab for testing. Most basic panels cost between $30 and $150. Comprehensive panels that include metals and PFAS typically run $150 to $400.
How Interpretation Works
We compare your values against EPA Maximum Contaminant Levels (MCLs), secondary standards, and health advisories. These are the same standards that apply to public water systems under the Safe Drinking Water Act. While they do not legally apply to private wells, they are the most widely used reference benchmarks for evaluating well water quality.
Read our full methodology for details on standards, thresholds, and limitations.