To water test well supplies properly, sample for bacteria, nitrate, pH, hardness, iron and anything your county health office flags for your area, and send it to a certified lab rather than relying on strips alone. This is entirely on the owner: the EPA notes private wells are not federally regulated under the Safe Drinking Water Act, and a USGS study of 2,100 private wells found about one in five carried at least one contaminant above a human-health benchmark.
What belongs on the test order
Start with the core panel: total coliform bacteria, nitrate, pH, hardness, iron and manganese, plus total dissolved solids. Then add local suspects: arsenic in some bedrock regions, lead if the plumbing is old, agricultural chemicals near farmland. Your county health department or state lab can tell you which extras matter where you live. Ordering the right panel once beats retesting piecemeal, because the lab charges per analyte group and the sampling trip is the same either way.
Strips and meters versus a certified lab
Home strips and TDS meters are screening tools: fine for watching a known problem between lab visits, wrong for making a purchase or safety decision. A certified lab uses controlled methods, reports detection limits, and produces a document you can hand to a treatment installer or a buyer during a home sale. The practical pattern is lab first, strips after, using the cheap tools to notice change and the lab to confirm it.
Sampling technique decides whether the result means anything
Use the lab's own bottles, follow their hold times, and sample from a clean tap without aerator, usually after a short flush unless the lab wants a first-draw sample for lead. Do not sample right after shocking the well or replacing plumbing, because the result will describe the disturbance rather than the water you normally drink. If any of this feels like a chore, our local well testing directory lists services that come out, pull the sample correctly and courier it under the right conditions.
Questions people ask about water test well
What does a basic well water test cover?
The standard first panel is total coliform bacteria, nitrate, pH, hardness, iron and total dissolved solids. It answers the safety question for the most common risks and gives a treatment installer the numbers needed to size equipment.
How do I find a certified lab for my well?
Your state environmental or health agency keeps a list of laboratories certified for drinking water analysis, and county health departments often sell subsidized well kits that route to one. Certification matters because it is what makes the result defensible.
Should I test before buying treatment equipment?
Always. Softeners, iron filters and UV systems are sized and selected from the numbers on a lab report. Equipment bought without a test is guessed, and guessed equipment is how basements end up with tanks that treat the wrong problem.