Private well answer guide

Nitrate 12 mg/L in Well Water: Is It Safe for Baby Formula?

If the result is 12 mg/L as nitrate-nitrogen, it is above the 10 mg/L drinking water limit. Do not use that well water to mix infant formula; use bottled water or another safe source and confirm the result with a certified lab.

Search: nitrate 12 mg/L well water baby formulaUrgency: Urgent

What to test

Nitrate as nitrogen
Nitrite
Total coliform
E. coli

What to do next

Confirm the unit: nitrate as nitrogen (NO3-N) is compared with the 10 mg/L limit.
Use bottled water or another safe source for infant formula, drinking, and cooking for babies.
Retest with a certified lab and consider testing nitrite, bacteria, and nearby contamination sources.
Discuss point-of-use reverse osmosis or another certified nitrate treatment system for drinking water.

Common questions

Is boiling nitrate water safe for baby formula?

No. Boiling does not remove nitrate and can concentrate it as water evaporates.

What filter removes nitrate from well water?

Point-of-use reverse osmosis, distillation, and properly designed anion exchange can reduce nitrate. Choose equipment certified for nitrate reduction and verify with follow-up testing.

Related well water guides

Total coliform

Understand bacteria present/absent results and what they mean for private wells.

Testing after flooding

See recommended lab panels after flooding, repairs, and contamination events.

Rotten egg smell and bacteria clues

Compare odor, bacteria, and treatment clues before choosing equipment.

Keep your well history

Interpret once on the web. Track forever in the app.

Save test history, set annual reminders, compare results over time, and create a shareable report for your family or water professional.

Save this result in the iOS app