Test well water for bacteria, nitrates, and pH

Short answer

Test your well water annually by collecting a sample with a state-approved kit or certified lab, mailing it in per the instructions, and treating or filtering based on results.

Priority: High
Difficulty: DIY
Time: 20 min
How often: Once a year

Why It Matters

Well water isn't tested by any utility. Bacteria, nitrates, and dropping pH can develop without taste or smell changes, with real health risks.

Materials

State-approved well water test kit (bacteria, nitrates, and pH)

How to Do It

Purchase a state-approved test kit that covers bacteria, nitrates, and pH, or contact a certified lab to request a collection kit.
Follow the kit instructions to collect the water sample, including any preparation steps specified for the container or tap.
Seal and mail the sample as directed, meeting any time or temperature requirements listed in the instructions.
When results arrive, compare each reading against the safe-range guidelines provided with the report.
If any value falls outside the safe range, treat or filter your water as recommended by the results.

Clear sink and shower drain buildup Every 3 months
Close and reopen the main water shutoff valve Once a year
Inspect toilets for leaks and worn flappers Once a year

Part Of

Plumbing Well

Last updated 22 September 2026

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