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Guide · Water

How to choose a home water test

Start by writing the question you want answered. Identify your water source, then review information already available from the supplier, property records or a previous test. A larger panel is not automatically the right panel.
Two different glasses of water side by side on a windowsill.

Practical steps

Compare the sample type, included analytes, collection instructions, laboratory process, shipping conditions and report format. Ask whether the test answers your specific question and what follow-up may be needed. For a private well, consult local guidance; EPA recommends routine checks including coliform bacteria, nitrates, total dissolved solids and pH.Source [1]

Next step

Use the water-testing worksheet. A provider page is an option to investigate, not a universal recommendation.

Sources and review

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  1. EPA: private-well water, US Environmental Protection Agency (accessed October 13, 2026) — Routine private-well testing and local guidance.
  2. Tap Score: core water-testing kits, Tap Score (accessed October 13, 2026) — Official product range; choose by water source and question, not a universal best kit.
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