Private Well Testing After a Flood: What to Test Before Drinking

After flooding, do not drink private well water until the well is inspected, disinfected if needed, and lab results show the water is safe. Start with bacteria and nitrate, then add chemicals based on local flood sources.

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Tests à demander

Total coliform
E. coli
Nitrate
Turbidity
VOCs if fuel exposure is possible
Metals if debris or industrial exposure is possible

Étapes suivantes

Use bottled water for drinking, cooking, ice, brushing teeth, and infant formula until lab results are clear.
Inspect the well for floodwater entry, damaged cap, cracked casing, electrical hazards, and sediment.
Test total coliform, E. coli, nitrate, turbidity, and any local contaminants such as fuel, pesticides, VOCs, or metals.
Disinfect the well only when it is safe to do so, then retest with a certified lab before using the water.

FAQ

Can I boil flooded well water?

Boiling can help with some microbes, but it does not remove chemicals, fuel, nitrate, or many flood-related contaminants. Use bottled water until testing confirms safety.

When should I test a private well after flooding?

Test after floodwater recedes, the well is inspected, and any disinfection or repairs are complete. Follow local health department timing because flood conditions vary.

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Informations éducatives uniquement. Confirmez les décisions importantes avec un laboratoire certifié, une autorité locale, un professionnel de l'eau ou un clinicien.