Bacteria and nitrate are common starting points, with additional analytes depending on local geology, land use and state guidance.
Order testing early enough that unexpected results can be confirmed and evaluated before important deadlines.
Well depth, age and nearby records can help frame questions, but they do not substitute for a current sample.
How to use public well records for this decision
Start with several nearby records rather than one point. Compare distance, completion date, reported depth, construction fields and any location-quality information the state publishes. A nearby record is useful context, but it is not proof that the well belongs to the searched parcel or that the same conditions will apply at the property.
For a purchase, repair or drilling decision, keep the public record alongside seller documents, well tags, inspection findings and current water testing. If a field is missing, WellLookup leaves it blank instead of estimating it. Open the official source when a record materially affects your decision.
Search the property before you rely on a nearby example
Use the address search to see which supported state source applies, how many records are nearby and what evidence is actually available for that location. The optional Property Report organizes the same public evidence into a property-focused summary; it does not replace inspection, laboratory testing or professional advice.